Move your image in the (hi-res) drawable to drawable-xxhdpi. But in app development, you do not need to use large image. It will increase your APK file size.
Modify onClick()
as follows:
@Override
public void onClick(View v) {
if(v == btn) {
canvas=sv.getHolder().lockCanvas();
if(canvas!=null) {
canvas.drawBitmap(bitmap, 100, 100, null);
sv.getHolder().unlockCanvasAndPost(canvas);
}
} else if(v == btn1) {
saveBitmapToInternalStorage(bitmap);
}
}
There are several ways to enforce that btn
must be pressed before btn1
so that the bitmap
is painted before you attempt to save it.
I suggest that you initially disable btn1
, and that you enable it when btn
is clicked, like this:
if(v == btn) {
...
btn1.setEnabled(true);
}
Custom zoom view in Kotlin
import android.content.Context
import android.graphics.Matrix
import android.graphics.PointF
import android.util.AttributeSet
import android.util.Log
import android.view.MotionEvent
import android.view.ScaleGestureDetector
import android.view.ScaleGestureDetector.SimpleOnScaleGestureListener
import androidx.appcompat.widget.AppCompatImageView
class ZoomImageview : AppCompatImageView {
var matri: Matrix? = null
var mode = NONE
// Remember some things for zooming
var last = PointF()
var start = PointF()
var minScale = 1f
var maxScale = 3f
lateinit var m: FloatArray
var viewWidth = 0
var viewHeight = 0
var saveScale = 1f
protected var origWidth = 0f
protected var origHeight = 0f
var oldMeasuredWidth = 0
var oldMeasuredHeight = 0
var mScaleDetector: ScaleGestureDetector? = null
var contex: Context? = null
constructor(context: Context) : super(context) {
sharedConstructing(context)
}
constructor(context: Context, attrs: AttributeSet?) : super(context, attrs) {
sharedConstructing(context)
}
private fun sharedConstructing(context: Context) {
super.setClickable(true)
this.contex= context
mScaleDetector = ScaleGestureDetector(context, ScaleListener())
matri = Matrix()
m = FloatArray(9)
imageMatrix = matri
scaleType = ScaleType.MATRIX
setOnTouchListener { v, event ->
mScaleDetector!!.onTouchEvent(event)
val curr = PointF(event.x, event.y)
when (event.action) {
MotionEvent.ACTION_DOWN -> {
last.set(curr)
start.set(last)
mode = DRAG
}
MotionEvent.ACTION_MOVE -> if (mode == DRAG) {
val deltaX = curr.x - last.x
val deltaY = curr.y - last.y
val fixTransX = getFixDragTrans(deltaX, viewWidth.toFloat(), origWidth * saveScale)
val fixTransY = getFixDragTrans(deltaY, viewHeight.toFloat(), origHeight * saveScale)
matri!!.postTranslate(fixTransX, fixTransY)
fixTrans()
last[curr.x] = curr.y
}
MotionEvent.ACTION_UP -> {
mode = NONE
val xDiff = Math.abs(curr.x - start.x).toInt()
val yDiff = Math.abs(curr.y - start.y).toInt()
if (xDiff < CLICK && yDiff < CLICK) performClick()
}
MotionEvent.ACTION_POINTER_UP -> mode = NONE
}
imageMatrix = matri
invalidate()
true // indicate event was handled
}
}
fun setMaxZoom(x: Float) {
maxScale = x
}
private inner class ScaleListener : SimpleOnScaleGestureListener() {
override fun onScaleBegin(detector: ScaleGestureDetector): Boolean {
mode = ZOOM
return true
}
override fun onScale(detector: ScaleGestureDetector): Boolean {
var mScaleFactor = detector.scaleFactor
val origScale = saveScale
saveScale *= mScaleFactor
if (saveScale > maxScale) {
saveScale = maxScale
mScaleFactor = maxScale / origScale
} else if (saveScale < minScale) {
saveScale = minScale
mScaleFactor = minScale / origScale
}
if (origWidth * saveScale <= viewWidth || origHeight * saveScale <= viewHeight) matri!!.postScale(mScaleFactor, mScaleFactor, viewWidth / 2.toFloat(), viewHeight / 2.toFloat()) else matri!!.postScale(mScaleFactor, mScaleFactor, detector.focusX, detector.focusY)
fixTrans()
return true
}
}
fun fixTrans() {
matri!!.getValues(m)
val transX = m[Matrix.MTRANS_X]
val transY = m[Matrix.MTRANS_Y]
val fixTransX = getFixTrans(transX, viewWidth.toFloat(), origWidth * saveScale)
val fixTransY = getFixTrans(transY, viewHeight.toFloat(), origHeight * saveScale)
if (fixTransX != 0f || fixTransY != 0f) matri!!.postTranslate(fixTransX, fixTransY)
}
fun getFixTrans(trans: Float, viewSize: Float, contentSize: Float): Float {
val minTrans: Float
val maxTrans: Float
if (contentSize <= viewSize) {
minTrans = 0f
maxTrans = viewSize - contentSize
} else {
minTrans = viewSize - contentSize
maxTrans = 0f
}
if (trans < minTrans) return -trans + minTrans
if (trans > maxTrans) return -trans + maxTrans
return 0f
}
fun getFixDragTrans(delta: Float, viewSize: Float, contentSize: Float): Float {
if (contentSize <= viewSize) {
return 0f
} else {
return delta
}
}
override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec)
viewWidth = MeasureSpec.getSize(widthMeasureSpec)
viewHeight = MeasureSpec.getSize(heightMeasureSpec)
//
// Rescales image on rotation
//
if (oldMeasuredHeight == viewWidth && oldMeasuredHeight == viewHeight || viewWidth == 0 || viewHeight == 0) return
oldMeasuredHeight = viewHeight
oldMeasuredWidth = viewWidth
if (saveScale == 1f) {
//Fit to screen.
val scale: Float
val drawable = drawable
if (drawable == null || drawable.intrinsicWidth == 0 || drawable.intrinsicHeight == 0) return
val bmWidth = drawable.intrinsicWidth
val bmHeight = drawable.intrinsicHeight
Log.d("bmSize", "bmWidth: $bmWidth bmHeight : $bmHeight")
val scaleX = viewWidth.toFloat() / bmWidth.toFloat()
val scaleY = viewHeight.toFloat() / bmHeight.toFloat()
scale = Math.min(scaleX, scaleY)
matri!!.setScale(scale, scale)
// Center the image
var redundantYSpace = viewHeight.toFloat() - scale * bmHeight.toFloat()
var redundantXSpace = viewWidth.toFloat() - scale * bmWidth.toFloat()
redundantYSpace /= 2.toFloat()
redundantXSpace /= 2.toFloat()
matri!!.postTranslate(redundantXSpace, redundantYSpace)
origWidth = viewWidth - 2 * redundantXSpace
origHeight = viewHeight - 2 * redundantYSpace
imageMatrix = matri
}
fixTrans()
}
companion object {
// We can be in one of these 3 states
const val NONE = 0
const val DRAG = 1
const val ZOOM = 2
const val CLICK = 3
}
}
By default the rotation point is the Canvas's (0,0) point, and my guess is that you may want to rotate it around the center. I did that:
protected void renderImage(Canvas canvas)
{
Rect dest,drawRect ;
drawRect = new Rect(0,0, mImage.getWidth(), mImage.getHeight());
dest = new Rect((int) (canvas.getWidth() / 2 - mImage.getWidth() * mImageResize / 2), // left
(int) (canvas.getHeight()/ 2 - mImage.getHeight()* mImageResize / 2), // top
(int) (canvas.getWidth() / 2 + mImage.getWidth() * mImageResize / 2), //right
(int) (canvas.getWidth() / 2 + mImage.getHeight()* mImageResize / 2));// bottom
if(!mRotate) {
canvas.drawBitmap(mImage, drawRect, dest, null);
} else {
canvas.save(Canvas.MATRIX_SAVE_FLAG); //Saving the canvas and later restoring it so only this image will be rotated.
canvas.rotate(90,canvas.getWidth() / 2, canvas.getHeight()/ 2);
canvas.drawBitmap(mImage, drawRect, dest, null);
canvas.restore();
}
}
If you load URL from bitmap without using AsyncTask, write two lines after setContentView(R.layout.abc);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
try {
URL url = new URL("http://....");
Bitmap image = BitmapFactory.decodeStream(url.openConnection().getInputStream());
} catch(IOException e) {
System.out.println(e);
}
canvas.drawColor(Color.TRANSPARENT, Mode.MULTIPLY);
I'd suggest a RelativeLayout instead of a FrameLayout.
Assuming that you want to have the TextView always below the ImageView I'd use following layout.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/imageview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerInParent="true"
android:src="@drawable/icon"
android:visibility="visible"/>
<TextView
android:id="@+id/textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_below="@id/imageview"
android:gravity="center"
android:text="@string/hello"/>
</RelativeLayout>
Note that if you set the visibility
of an element to gone
then the space that element would consume is gone whereas when you use invisible
instead the space it'd consume will be preserved.
If you want to have the TextView on top of the ImageView then simply leave out the android:layout_alignParentTop
or set it to false
and on the TextView leave out the android:layout_below="@id/imageview"
attribute. Like this.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/imageview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="false"
android:layout_centerInParent="true"
android:src="@drawable/icon"
android:visibility="visible"/>
<TextView
android:id="@+id/textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:gravity="center"
android:text="@string/hello"/>
</RelativeLayout>
I hope this is what you were looking for.
My dirty solution:
private static Bitmap getDropShadow3(Bitmap bitmap) {
if (bitmap==null) return null;
int think = 6;
int w = bitmap.getWidth();
int h = bitmap.getHeight();
int newW = w - (think);
int newH = h - (think);
Bitmap.Config conf = Bitmap.Config.ARGB_8888;
Bitmap bmp = Bitmap.createBitmap(w, h, conf);
Bitmap sbmp = Bitmap.createScaledBitmap(bitmap, newW, newH, false);
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
Canvas c = new Canvas(bmp);
// Right
Shader rshader = new LinearGradient(newW, 0, w, 0, Color.GRAY, Color.LTGRAY, Shader.TileMode.CLAMP);
paint.setShader(rshader);
c.drawRect(newW, think, w, newH, paint);
// Bottom
Shader bshader = new LinearGradient(0, newH, 0, h, Color.GRAY, Color.LTGRAY, Shader.TileMode.CLAMP);
paint.setShader(bshader);
c.drawRect(think, newH, newW , h, paint);
//Corner
Shader cchader = new LinearGradient(0, newH, 0, h, Color.LTGRAY, Color.LTGRAY, Shader.TileMode.CLAMP);
paint.setShader(cchader);
c.drawRect(newW, newH, w , h, paint);
c.drawBitmap(sbmp, 0, 0, null);
return bmp;
}
result:
You can use the code below to solve the problem or download demo here
Create two functions to handle each.
First, the canvas is drawn and the images are drawn on top of each other from point (0,0)
On button click
public void buttonMerge(View view) {
Bitmap bigImage = BitmapFactory.decodeResource(getResources(), R.drawable.img1);
Bitmap smallImage = BitmapFactory.decodeResource(getResources(), R.drawable.img2);
Bitmap mergedImages = createSingleImageFromMultipleImages(bigImage, smallImage);
img.setImageBitmap(mergedImages);
}
Function to create an overlay.
private Bitmap createSingleImageFromMultipleImages(Bitmap firstImage, Bitmap secondImage){
Bitmap result = Bitmap.createBitmap(firstImage.getWidth(), firstImage.getHeight(), firstImage.getConfig());
Canvas canvas = new Canvas(result);
canvas.drawBitmap(firstImage, 0f, 0f, null);
canvas.drawBitmap(secondImage, 10, 10, null);
return result;
}
Another way of using pragma:
> table = "foo"
> cur.execute("SELECT group_concat(name, ', ') FROM pragma_table_info(?)", (table,))
> cur.fetchone()
('foo', 'bar', ...,)
The process can differ depending on where and how the video is being hosted. Knowing that can help to answer the question in more detail.
As an example; this is how you can download videos with blob links on Vimeo.
The methods in some of the other answers that use a regular expression do not cover all cases, particularly:
The following method handles these cases:
function getCookie(name) {
function escape(s) { return s.replace(/([.*+?\^$(){}|\[\]\/\\])/g, '\\$1'); }
var match = document.cookie.match(RegExp('(?:^|;\\s*)' + escape(name) + '=([^;]*)'));
return match ? match[1] : null;
}
This will return null
if the cookie is not found. It will return an empty string if the value of the cookie is empty.
Notes:
document.cookie
- When this appears on the right-hand side of an assignment, it represents a string containing a semicolon-separated list of cookies, which in turn are name=value
pairs. There appears to be a single space after each semicolon.String.prototype.match()
- Returns null
when no match is found. Returns an array when a match is found, and the element at index [1]
is the value of the first matching group.Regular Expression Notes:
(?:xxxx)
- forms a non-matching group.^
- matches the start of the string.|
- separates alternative patterns for the group.;\\s*
- matches one semi-colon followed by zero or more whitespace characters.=
- matches one equal sign.(xxxx)
- forms a matching group.[^;]*
- matches zero or more characters other than a semi-colon. This means it will match characters up to, but not including, a semi-colon or to the end of the string.Use this query to check what is the Sequence Key with Schema and Table,
SELECT pg_get_serial_sequence('"SchemaName"."TableName"', 'KeyColumnName'); // output: "SequenceKey"
Use this query increase increment value one by one,
SELECT nextval('"SchemaName"."SequenceKey"'::regclass); // output 110
When inserting to table next incremented value will be used as the key (111).
Use this query to set specific value as the incremented value
SELECT setval('"SchemaName"."SequenceKey"', 120);
When inserting to table next incremented value will be used as the key (121).
Specify POST method in form
<form name="registrationform" action="register.php" method="post">
your form code
</form>
(http|https)?:\/\/(\S+)
This works for me
Not a regex specialist, but i will try to explain the awnser.
(http|https) : Parenthesis indicates a capture group, "I" a OR statement.
\/\/ : "\" allows special characters, such as "/"
(\S+) : Anything that is not whitespace until the next whitespace
You can't inject content from another site (domain) using AJAX. The reason an iFrame is suited for these kinds of things is that you can specify the source to be from another domain.
@interface TTItem : NSObject
@property (nonatomic, copy) NSString *name;
@end
{
TTItem *item = [[TTItem alloc] init];
NSString *test1 = [NSString stringWithFormat:@"%d / %@", 1, @"Go go go"];
item.name = test1;
NSLog(@"-item.name: point = %p, content = %@; test1 = %p", item.name, item.name, test1);
test1 = [NSString stringWithFormat:@"%d / %@", 2, @"Back back back"];
NSLog(@"+item.name: point = %p, content = %@, test1 = %p", item.name, item.name, test1);
}
Log:
-item.name: point = 0x9a805a0, content = 1 / Go go go; test1 = 0x9a805a0
+item.name: point = 0x9a805a0, content = 1 / Go go go, test1 = 0x9a84660
You can try this code.
var radioBtn = $('<input type="radio" name="ticketID1" value="myvalue1">');
if('some condition'){
$(radioBtn).attr('disabled', true); // Disable the radio button.
$('.span_class').css('opacity', '.2'); // Set opacity to .2 to mute the text in front of the radio button.
}else{
$(radioBtn).attr('disabled', false);
$('.span_class').css('opacity', '1');
}
You can use it by using the StackTrace
and then you can get reflective types from that.
StackTrace stackTrace = new StackTrace(); // get call stack
StackFrame[] stackFrames = stackTrace.GetFrames(); // get method calls (frames)
StackFrame callingFrame = stackFrames[1];
MethodInfo method = callingFrame.GetMethod();
Console.Write(method.Name);
Console.Write(method.DeclaringType.Name);
Use YQL and you don't need to worry. It's a query language by Yahoo and you can get all the stock data including the name of the company for the ticker. It's a REST API and it returns the results via XML or JSON. I have a full tutorial and source code on my site take a look: http://www.jarloo.com/yahoo-stock-symbol-lookup/
It's called a for-each or enhanced for
statement. See the JLS §14.14.2.
It's syntactic sugar provided by the compiler for iterating over Iterable
s and arrays. The following are equivalent ways to iterate over a list:
List<Foo> foos = ...;
for (Foo foo : foos)
{
foo.bar();
}
// equivalent to:
List<Foo> foos = ...;
for (Iterator<Foo> iter = foos.iterator(); iter.hasNext();)
{
Foo foo = iter.next();
foo.bar();
}
and these are two equivalent ways to iterate over an array:
int[] nums = ...;
for (int num : nums)
{
System.out.println(num);
}
// equivalent to:
int[] nums = ...;
for (int i=0; i<nums.length; i++)
{
int num = nums[i];
System.out.println(num);
}
Try the following:
document.getElementById("successAndErrorMessages").innerHTML="someContent";
msdn link for detail : innerHTML Property
Okay, I'm writing this answer by extending wmky's answer above & also, assuming that you've configured mysql for your metastore instead of derby.
select PART_NAME FROM PARTITIONS WHERE TBL_ID=(SELECT TBL_ID FROM TBLS WHERE TBL_NAME='<table_name>');
The above query gives you all possible values of the partition columns.
Example:
hive> desc clicks_fact;
OK
time timestamp
..
day date
file_date varchar(8)
# Partition Information
# col_name data_type comment
day date
file_date varchar(8)
Time taken: 1.075 seconds, Fetched: 28 row(s)
I'm going to fetch the values of partition columns.
mysql> select PART_NAME FROM PARTITIONS WHERE TBL_ID=(SELECT TBL_ID FROM TBLS WHERE TBL_NAME='clicks_fact');
+-----------------------------------+
| PART_NAME |
+-----------------------------------+
| day=2016-08-16/file_date=20160816 |
| day=2016-08-17/file_date=20160816 |
....
....
| day=2017-09-09/file_date=20170909 |
| day=2017-09-08/file_date=20170909 |
| day=2017-09-09/file_date=20170910 |
| day=2017-09-10/file_date=20170910 |
+-----------------------------------+
1216 rows in set (0.00 sec)
Returns all partition columns.
Note: JOIN
table DBS
ON DB_ID
when there is a DB involved (i.e, when, multiple DB's have same table_name)
I know you asked for GET and POST but I will provide CRUD since others may need this just in case: (this was tested in Python 3.7)
#!/usr/bin/env python3
import http.client
import json
print("\n GET example")
conn = http.client.HTTPSConnection("httpbin.org")
conn.request("GET", "/get")
response = conn.getresponse()
data = response.read().decode('utf-8')
print(response.status, response.reason)
print(data)
print("\n POST example")
conn = http.client.HTTPSConnection('httpbin.org')
headers = {'Content-type': 'application/json'}
post_body = {'text': 'testing post'}
json_data = json.dumps(post_body)
conn.request('POST', '/post', json_data, headers)
response = conn.getresponse()
print(response.read().decode())
print(response.status, response.reason)
print("\n PUT example ")
conn = http.client.HTTPSConnection('httpbin.org')
headers = {'Content-type': 'application/json'}
post_body ={'text': 'testing put'}
json_data = json.dumps(post_body)
conn.request('PUT', '/put', json_data, headers)
response = conn.getresponse()
print(response.read().decode(), response.reason)
print(response.status, response.reason)
print("\n delete example")
conn = http.client.HTTPSConnection('httpbin.org')
headers = {'Content-type': 'application/json'}
post_body ={'text': 'testing delete'}
json_data = json.dumps(post_body)
conn.request('DELETE', '/delete', json_data, headers)
response = conn.getresponse()
print(response.read().decode(), response.reason)
print(response.status, response.reason)
ok just so you know there is a program out there that's called DroidDraw. It can help you draw objects and try them one on top of the other. I tried your solution but I had animation under the smaller image so that didn't work. But then I tried to place one image in a relative layout that's suppose to be under first and then on top of that I drew the other image that is suppose to overlay and everything worked great. So RelativeLayout, DroidDraw and you are good to go :) Simple, no any kind of jiggery pockery :) and here is a bit of code for ya:
The logo is going to be on top of shazam background image.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:id="@+id/widget30"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<ImageView
android:id="@+id/widget39"
android:layout_width="219px"
android:layout_height="225px"
android:src="@drawable/shazam_bkgd"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
>
</ImageView>
<ImageView
android:id="@+id/widget37"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/shazam_logo"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
>
</ImageView>
</RelativeLayout>
From http://docs.python-requests.org/en/latest/user/quickstart/
url = 'https://api.github.com/some/endpoint'
payload = {'some': 'data'}
headers = {'content-type': 'application/json'}
r = requests.post(url, data=json.dumps(payload), headers=headers)
You just need to create a dict with your headers (key: value pairs where the key is the name of the header and the value is, well, the value of the pair) and pass that dict to the headers parameter on the .get
or .post
method.
So more specific to your question:
headers = {'foobar': 'raboof'}
requests.get('http://himom.com', headers=headers)
Some of the above values are easily available from the appropriate WIN32 API, I just list them here for completeness. Others, however, need to be obtained from the Performance Data Helper library (PDH), which is a bit "unintuitive" and takes a lot of painful trial and error to get to work. (At least it took me quite a while, perhaps I've been only a bit stupid...)
Note: for clarity all error checking has been omitted from the following code. Do check the return codes...!
Total Virtual Memory:
#include "windows.h"
MEMORYSTATUSEX memInfo;
memInfo.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&memInfo);
DWORDLONG totalVirtualMem = memInfo.ullTotalPageFile;
Note: The name "TotalPageFile" is a bit misleading here. In reality this parameter gives the "Virtual Memory Size", which is size of swap file plus installed RAM.
Virtual Memory currently used:
Same code as in "Total Virtual Memory" and then
DWORDLONG virtualMemUsed = memInfo.ullTotalPageFile - memInfo.ullAvailPageFile;
Virtual Memory currently used by current process:
#include "windows.h"
#include "psapi.h"
PROCESS_MEMORY_COUNTERS_EX pmc;
GetProcessMemoryInfo(GetCurrentProcess(), (PROCESS_MEMORY_COUNTERS*)&pmc, sizeof(pmc));
SIZE_T virtualMemUsedByMe = pmc.PrivateUsage;
Total Physical Memory (RAM):
Same code as in "Total Virtual Memory" and then
DWORDLONG totalPhysMem = memInfo.ullTotalPhys;
Physical Memory currently used:
Same code as in "Total Virtual Memory" and then
DWORDLONG physMemUsed = memInfo.ullTotalPhys - memInfo.ullAvailPhys;
Physical Memory currently used by current process:
Same code as in "Virtual Memory currently used by current process" and then
SIZE_T physMemUsedByMe = pmc.WorkingSetSize;
CPU currently used:
#include "TCHAR.h"
#include "pdh.h"
static PDH_HQUERY cpuQuery;
static PDH_HCOUNTER cpuTotal;
void init(){
PdhOpenQuery(NULL, NULL, &cpuQuery);
// You can also use L"\\Processor(*)\\% Processor Time" and get individual CPU values with PdhGetFormattedCounterArray()
PdhAddEnglishCounter(cpuQuery, L"\\Processor(_Total)\\% Processor Time", NULL, &cpuTotal);
PdhCollectQueryData(cpuQuery);
}
double getCurrentValue(){
PDH_FMT_COUNTERVALUE counterVal;
PdhCollectQueryData(cpuQuery);
PdhGetFormattedCounterValue(cpuTotal, PDH_FMT_DOUBLE, NULL, &counterVal);
return counterVal.doubleValue;
}
CPU currently used by current process:
#include "windows.h"
static ULARGE_INTEGER lastCPU, lastSysCPU, lastUserCPU;
static int numProcessors;
static HANDLE self;
void init(){
SYSTEM_INFO sysInfo;
FILETIME ftime, fsys, fuser;
GetSystemInfo(&sysInfo);
numProcessors = sysInfo.dwNumberOfProcessors;
GetSystemTimeAsFileTime(&ftime);
memcpy(&lastCPU, &ftime, sizeof(FILETIME));
self = GetCurrentProcess();
GetProcessTimes(self, &ftime, &ftime, &fsys, &fuser);
memcpy(&lastSysCPU, &fsys, sizeof(FILETIME));
memcpy(&lastUserCPU, &fuser, sizeof(FILETIME));
}
double getCurrentValue(){
FILETIME ftime, fsys, fuser;
ULARGE_INTEGER now, sys, user;
double percent;
GetSystemTimeAsFileTime(&ftime);
memcpy(&now, &ftime, sizeof(FILETIME));
GetProcessTimes(self, &ftime, &ftime, &fsys, &fuser);
memcpy(&sys, &fsys, sizeof(FILETIME));
memcpy(&user, &fuser, sizeof(FILETIME));
percent = (sys.QuadPart - lastSysCPU.QuadPart) +
(user.QuadPart - lastUserCPU.QuadPart);
percent /= (now.QuadPart - lastCPU.QuadPart);
percent /= numProcessors;
lastCPU = now;
lastUserCPU = user;
lastSysCPU = sys;
return percent * 100;
}
On Linux the choice that seemed obvious at first was to use the POSIX APIs like getrusage()
etc. I spent some time trying to get this to work, but never got meaningful values. When I finally checked the kernel sources themselves, I found out that apparently these APIs are not yet completely implemented as of Linux kernel 2.6!?
In the end I got all values via a combination of reading the pseudo-filesystem /proc
and kernel calls.
Total Virtual Memory:
#include "sys/types.h"
#include "sys/sysinfo.h"
struct sysinfo memInfo;
sysinfo (&memInfo);
long long totalVirtualMem = memInfo.totalram;
//Add other values in next statement to avoid int overflow on right hand side...
totalVirtualMem += memInfo.totalswap;
totalVirtualMem *= memInfo.mem_unit;
Virtual Memory currently used:
Same code as in "Total Virtual Memory" and then
long long virtualMemUsed = memInfo.totalram - memInfo.freeram;
//Add other values in next statement to avoid int overflow on right hand side...
virtualMemUsed += memInfo.totalswap - memInfo.freeswap;
virtualMemUsed *= memInfo.mem_unit;
Virtual Memory currently used by current process:
#include "stdlib.h"
#include "stdio.h"
#include "string.h"
int parseLine(char* line){
// This assumes that a digit will be found and the line ends in " Kb".
int i = strlen(line);
const char* p = line;
while (*p <'0' || *p > '9') p++;
line[i-3] = '\0';
i = atoi(p);
return i;
}
int getValue(){ //Note: this value is in KB!
FILE* file = fopen("/proc/self/status", "r");
int result = -1;
char line[128];
while (fgets(line, 128, file) != NULL){
if (strncmp(line, "VmSize:", 7) == 0){
result = parseLine(line);
break;
}
}
fclose(file);
return result;
}
Total Physical Memory (RAM):
Same code as in "Total Virtual Memory" and then
long long totalPhysMem = memInfo.totalram;
//Multiply in next statement to avoid int overflow on right hand side...
totalPhysMem *= memInfo.mem_unit;
Physical Memory currently used:
Same code as in "Total Virtual Memory" and then
long long physMemUsed = memInfo.totalram - memInfo.freeram;
//Multiply in next statement to avoid int overflow on right hand side...
physMemUsed *= memInfo.mem_unit;
Physical Memory currently used by current process:
Change getValue() in "Virtual Memory currently used by current process" as follows:
int getValue(){ //Note: this value is in KB!
FILE* file = fopen("/proc/self/status", "r");
int result = -1;
char line[128];
while (fgets(line, 128, file) != NULL){
if (strncmp(line, "VmRSS:", 6) == 0){
result = parseLine(line);
break;
}
}
fclose(file);
return result;
}
CPU currently used:
#include "stdlib.h"
#include "stdio.h"
#include "string.h"
static unsigned long long lastTotalUser, lastTotalUserLow, lastTotalSys, lastTotalIdle;
void init(){
FILE* file = fopen("/proc/stat", "r");
fscanf(file, "cpu %llu %llu %llu %llu", &lastTotalUser, &lastTotalUserLow,
&lastTotalSys, &lastTotalIdle);
fclose(file);
}
double getCurrentValue(){
double percent;
FILE* file;
unsigned long long totalUser, totalUserLow, totalSys, totalIdle, total;
file = fopen("/proc/stat", "r");
fscanf(file, "cpu %llu %llu %llu %llu", &totalUser, &totalUserLow,
&totalSys, &totalIdle);
fclose(file);
if (totalUser < lastTotalUser || totalUserLow < lastTotalUserLow ||
totalSys < lastTotalSys || totalIdle < lastTotalIdle){
//Overflow detection. Just skip this value.
percent = -1.0;
}
else{
total = (totalUser - lastTotalUser) + (totalUserLow - lastTotalUserLow) +
(totalSys - lastTotalSys);
percent = total;
total += (totalIdle - lastTotalIdle);
percent /= total;
percent *= 100;
}
lastTotalUser = totalUser;
lastTotalUserLow = totalUserLow;
lastTotalSys = totalSys;
lastTotalIdle = totalIdle;
return percent;
}
CPU currently used by current process:
#include "stdlib.h"
#include "stdio.h"
#include "string.h"
#include "sys/times.h"
#include "sys/vtimes.h"
static clock_t lastCPU, lastSysCPU, lastUserCPU;
static int numProcessors;
void init(){
FILE* file;
struct tms timeSample;
char line[128];
lastCPU = times(&timeSample);
lastSysCPU = timeSample.tms_stime;
lastUserCPU = timeSample.tms_utime;
file = fopen("/proc/cpuinfo", "r");
numProcessors = 0;
while(fgets(line, 128, file) != NULL){
if (strncmp(line, "processor", 9) == 0) numProcessors++;
}
fclose(file);
}
double getCurrentValue(){
struct tms timeSample;
clock_t now;
double percent;
now = times(&timeSample);
if (now <= lastCPU || timeSample.tms_stime < lastSysCPU ||
timeSample.tms_utime < lastUserCPU){
//Overflow detection. Just skip this value.
percent = -1.0;
}
else{
percent = (timeSample.tms_stime - lastSysCPU) +
(timeSample.tms_utime - lastUserCPU);
percent /= (now - lastCPU);
percent /= numProcessors;
percent *= 100;
}
lastCPU = now;
lastSysCPU = timeSample.tms_stime;
lastUserCPU = timeSample.tms_utime;
return percent;
}
I would assume, that some of the Linux code also works for the Unixes, except for the parts that read the /proc pseudo-filesystem. Perhaps on Unix these parts can be replaced by getrusage()
and similar functions?
If someone with Unix know-how could edit this answer and fill in the details?!
nproc
is what you are looking for.
More here : http://www.cyberciti.biz/faq/linux-get-number-of-cpus-core-command/
For reading date cells this method has proven to be robust so far:
private LocalDate readCellAsDate(final Row row, final int pos) {
if (pos == -1) {
return null;
}
final Cell cell = row.getCell(pos - 1);
if (cell != null) {
cell.setCellType(CellType.NUMERIC);
} else {
return null;
}
if (DateUtil.isCellDateFormatted(cell)) {
try {
return cell.getDateCellValue().toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
} catch (final NullPointerException e) {
logger.error(e.getMessage());
return null;
}
}
return null;
}
Columns("A:E").Select
Can be directly replaced by
Columns(1).Resize(, 5).EntireColumn.Select
Where 1 can be replaced by a variable
n = 5
Columns(n).Resize(, n+4).EntireColumn.Select
In my opinion you are best dealing with a block of columns rather than looping through columns n to n + 4 as it is more efficient.
In addition, using select will slow your code down. So instead of selecting your columns and then performing an action on the selection try instead to perform the action directly. Below is an example to change the colour of columns A-E to yellow.
Columns(1).Resize(, 5).EntireColumn.Interior.Color = 65535
There was an answer here: Secure distribution of NodeJS applications. Raynos said: V8 allows you to pre-compile JavaScript.
I am using SQL Server 2016 and Window 10.
First thing is to allow remote connection to SQL Server. What I did is to type sqlservermanager13.msc at start menu in order to open the SQL Server Configuration Manager. Make sure the TCP/IP status is enabled.
Check your TCP port number by double click TCP/IP protocol name. Usually it is 1433 by default.
The following procedures configure the Windows Firewall by using the Windows Firewall with Advanced Security Microsoft Management Console (MMC) snap-in. The Windows Firewall with Advanced Security only configures the current profile.
To open a port in the Windows firewall for TCP access
- On the Start menu, click Run, type WF.msc, and then click OK.
- In the Windows Firewall with Advanced Security, in the left pane, right-click Inbound Rules, and then click New Rule in the action pane.
- In the Rule Type dialog box, select Port, and then click Next.
- In the Protocol and Ports dialog box, select TCP. Select Specific local ports, and then type the port number of the instance of the Database Engine, such as 1433 for the default instance. Click Next.
- In the Action dialog box, select Allow the connection, and then click Next.
- In the Profile dialog box, select any profiles that describe the computer connection environment when you want to connect to the Database Engine, and then click Next.
- In the Name dialog box, type a name and description for this rule, and then click Finish.
Another thing to configure.
To open access to SQL Server when using dynamic ports
- On the Start menu, click Run, type WF.msc, and then click OK.
- In the Windows Firewall with Advanced Security, in the left pane, right-click Inbound Rules, and then click New Rule in the action pane.
- In the Rule Type dialog box, select Program, and then click Next.
- In the Program dialog box, select This program path. Click Browse, and navigate to the instance of SQL Server that you want to access through the firewall, and then click Open. By default, SQL Server is at C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\Binn\Sqlservr.exe. Click Next.
- In the Action dialog box, select Allow the connection, and then click Next.
- In the Profile dialog box, select any profiles that describe the computer connection environment when you want to connect to the Database Engine, and then click Next.
- In the Name dialog box, type a name and description for this rule, and then click Finish.
Have a look at Microsoft doucmentation Configure a Windows Firewall for Database Engine Access
1 See the list of devices/emulators currently available.
$ adb devices
List of devices attached
G7NZCJ015313309 device emulator-5554 device
9885b6454e46383744 device
2 Run backup on your device/emulator
$ adb -s emulator-5554 backup -f ~/Desktop/data.ab -noapk com.your_app_package.app;
3 Extract data.ab
$ dd if=data.ab bs=1 skip=24 | openssl zlib -d | tar -xvf -;
You will find the database in /db
folder
I was not able to install cv2 on Anaconda-Jupyter notebook running on Ubuntu on Google Cloud Platform. But I found a way to do it as follows:
Run the following command from the ssh terminal and follow the instruction:
sudo apt-get install libsm6 libxrender1 libfontconfig1
Once its installed Open the Jupyter notebook and run following command:
!pip install opencv-contrib-python
Note: I tried to run this command: "sudo python3 -m pip install opencv-contrib-python"but it was showing an error. But above command worked for me.
Now refresh the notebook page and check whether it's installed or not by running import cv2
in the notebook.
What Access File extension or you using? The Jet OLEDB or the Ace OLEDB. If your Access DB is .mdb (aka Jet Oledb)
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.Oledb
namespace MembershipInformationSystem.Helpers
{
public class dbs
{
private String connectionString;
private String OleDBProvider = "Microsoft.JET.OLEDB.4.0"; \\if ACE Microsoft.ACE.OLEDB.12.0
private String OleDBDataSource = "C:\\yourdb.mdb";
private String OleDBPassword = "infosys";
private String PersistSecurityInfo = "False";
public dbs()
{
}
public dbs(String connectionString)
{
this.connectionString = connectionString;
}
public String konek()
{
connectionString = "Provider=" + OleDBProvider + ";Data Source=" + OleDBDataSource + ";JET OLEDB:Database Password=" + OleDBPassword + ";Persist Security Info=" + PersistSecurityInfo + "";
return connectionString;
}
}
}
Not sure of this is helpful but this what worked for me in Rails 4
Foo.where.not(bar: nil)
My fix using Android Studio 3.0.0 on Windows 10 is to remove entirely any jvm args from the gradle.properties file.
I am using the Android gradle wrapper 3.0.1 with gradle version 4.1. No gradlew commands were working, but a warning says that it's trying to ignore any jvm memory args as they were removed in 8 (which I assume is Java 8).
As you see in an error UseCalls.java:27: error: cannot find symbol
return String.parseString(input);
there is no method parseString
in String
class. There is no need to parse it as long as JOptionPane.showInputDialog(prompt);
already returns a string.
With these two steps we can check if it LL(1) or not. Both of them have to be satisfied.
1.If we have the production:A->a1|a2|a3|a4|.....|an. Then,First(a(i)) intersection First(a(j)) must be phi(empty set)[a(i)-a subscript i.]
2.For every non terminal 'A',if First(A) contains epsilon Then First(A) intersection Follow(A) must be phi(empty set).
Unfortunately, I don't think Pandas allows one to drop dups off the indices. I would suggest the following:
df3 = df3.reset_index() # makes date column part of your data
df3.columns = ['timestamp','A','B','rownum'] # set names
df3 = df3.drop_duplicates('timestamp',take_last=True).set_index('timestamp') #done!
Wow! Mean this that you must learn a different programming language just to send two keys to the keyboard? There are simpler ways for you to achieve the same thing. :-)
The Batch file below is an example that start another program (cmd.exe in this case), send a command to it and then send an Up Arrow key, that cause to recover the last executed command. The Batch file is simple enough to be understand with no problems, so you may modify it to fit your needs.
@if (@CodeSection == @Batch) @then
@echo off
rem Use %SendKeys% to send keys to the keyboard buffer
set SendKeys=CScript //nologo //E:JScript "%~F0"
rem Start the other program in the same Window
start "" /B cmd
%SendKeys% "echo off{ENTER}"
set /P "=Wait and send a command: " < NUL
ping -n 5 -w 1 127.0.0.1 > NUL
%SendKeys% "echo Hello, world!{ENTER}"
set /P "=Wait and send an Up Arrow key: [" < NUL
ping -n 5 -w 1 127.0.0.1 > NUL
%SendKeys% "{UP}"
set /P "=] Wait and send an Enter key:" < NUL
ping -n 5 -w 1 127.0.0.1 > NUL
%SendKeys% "{ENTER}"
%SendKeys% "exit{ENTER}"
goto :EOF
@end
// JScript section
var WshShell = WScript.CreateObject("WScript.Shell");
WshShell.SendKeys(WScript.Arguments(0));
For a list of key names for SendKeys, see: http://msdn.microsoft.com/en-us/library/8c6yea83(v=vs.84).aspx
For example:
LEFT ARROW {LEFT}
RIGHT ARROW {RIGHT}
For a further explanation of this solution, see: GnuWin32 openssl s_client conn to WebSphere MQ server not closing at EOF, hangs
You need to put the last()
indexing on the nodelist result, rather than as part of the selection criteria. Try:
(//element[@name='D'])[last()]
None of the configuration above worked for me on my CentOS 7 server. After hours of searching, that's what worked for me:
Edit file phpMyAdmin.conf
sudo nano /etc/httpd/conf.d/phpMyAdmin.conf
And replace this at the top:
<Directory /usr/share/phpMyAdmin/>
AddDefaultCharset UTF-8
<IfModule mod_authz_core.c>
# Apache 2.4
<RequireAny>
#Require ip 127.0.0.1
#Require ip ::1
Require all granted
</RequireAny>
</IfModule>
<IfModule !mod_authz_core.c>
# Apache 2.2
Order Deny,Allow
Deny from All
Allow from 127.0.0.1
Allow from ::1
</IfModule>
</Directory>
ANSWER?
I'm using it for an animation for adding items to a cart - a cart icon floats to the cart area from the product "add" button, when clicked:
function addCartItem(opts) {
for (var i=0; i<opts.qty; i++) {
setTimeout(function() {
console.log('ADDED ONE!');
}, 1000*i);
}
};
NOTE the duration is in unit times n epocs.
So starting at the the click moment, the animations start epoc (of EACH animation) is the product of each one-second-unit multiplied by the number of items.
epoc: https://en.wikipedia.org/wiki/Epoch_(reference_date)
Hope this helps!
Already some great answers to this question, however here is a nice snippet that I use regularly to drop rows if they have non-numeric values on some columns:
# Eliminate invalid data from dataframe (see Example below for more context)
num_df = (df.drop(data_columns, axis=1)
.join(df[data_columns].apply(pd.to_numeric, errors='coerce')))
num_df = num_df[num_df[data_columns].notnull().all(axis=1)]
The way this works is we first drop
all the data_columns
from the df
, and then use a join
to put them back in after passing them through pd.to_numeric
(with option 'coerce'
, such that all non-numeric entries are converted to NaN
). The result is saved to num_df
.
On the second line we use a filter that keeps only rows where all values are not null.
Note that pd.to_numeric
is coercing to NaN
everything that cannot be converted to a numeric value, so strings that represent numeric values will not be removed. For example '1.25'
will be recognized as the numeric value 1.25
.
Disclaimer: pd.to_numeric
was introduced in pandas version 0.17.0
Example:
In [1]: import pandas as pd
In [2]: df = pd.DataFrame({"item": ["a", "b", "c", "d", "e"],
...: "a": [1,2,3,"bad",5],
...: "b":[0.1,0.2,0.3,0.4,0.5]})
In [3]: df
Out[3]:
a b item
0 1 0.1 a
1 2 0.2 b
2 3 0.3 c
3 bad 0.4 d
4 5 0.5 e
In [4]: data_columns = ['a', 'b']
In [5]: num_df = (df
...: .drop(data_columns, axis=1)
...: .join(df[data_columns].apply(pd.to_numeric, errors='coerce')))
In [6]: num_df
Out[6]:
item a b
0 a 1 0.1
1 b 2 0.2
2 c 3 0.3
3 d NaN 0.4
4 e 5 0.5
In [7]: num_df[num_df[data_columns].notnull().all(axis=1)]
Out[7]:
item a b
0 a 1 0.1
1 b 2 0.2
2 c 3 0.3
4 e 5 0.5
you have to create an entry inside res/menu,
override onCreateOptionsMenu
and inflate it
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.yourentry, menu);
return true;
}
an entry for the menu could be:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/action_cart"
android:icon="@drawable/cart"
android:orderInCategory="100"
android:showAsAction="always"/>
</menu>
After testing it with RSpec like this:
describe Hash do
describe :map_values do
it 'should map the values' do
expect({:a => 2, :b => 3}.map_values { |x| x ** 2 }).to eq({:a => 4, :b => 9})
end
end
end
You could implement Hash#map_values as follows:
class Hash
def map_values
Hash[map { |k, v| [k, yield(v)] }]
end
end
The function then can be used like this:
{:a=>'a' , :b=>'b'}.map_values { |v| "%#{v}%" }
# {:a=>"%a%", :b=>"%b%"}
If you mean the array indexer,, You overload that just by writing an indexer property.. And you can overload, (write as many as you want) indexer properties as long as each one has a different parameter signature
public class EmployeeCollection: List<Employee>
{
public Employee this[int employeeId]
{
get
{
foreach(var emp in this)
{
if (emp.EmployeeId == employeeId)
return emp;
}
return null;
}
}
public Employee this[string employeeName]
{
get
{
foreach(var emp in this)
{
if (emp.Name == employeeName)
return emp;
}
return null;
}
}
}
Its a late answer, but as I can see most of the people mentioned about "refresh" method to redirect a webpage. As per W3C, we should not use "refresh" to redirect. Because it could break the "back" button. Imagine that the user presses the "back" button, the refresh would work again, and the user would bounce forward. The user will most likely get very annoyed, and close the window, which is probably not what you, as the author of this page, want.
Use HTTP redirects instead. One can refer the complete documentation here: W3C document
Use this i liked it so much since creates link with blue color to particular text only not on whole label text: FRHyperLabel
To do:
Download from above link and copy FRHyperLabel.h
, FRHyperLabel.m
to your project.
Drag drop UILabel
in your Storyboard
and define custom class name to FRHyperLabel
in identify inspector as shown in image.
@property (weak, nonatomic) IBOutlet FRHyperLabel *label;
`NSString *string = @"By uploading I agree to the Terms of Use"; NSDictionary *attributes = @{NSFontAttributeName: [UIFont preferredFontForTextStyle:UIFontTextStyleHeadline]};
_label.attributedText = [[NSAttributedString alloc]initWithString:string attributes:attributes];
[_label setFont:[_label.font fontWithSize:13.0]];
[_label setLinkForSubstring:@"Terms of Use" withLinkHandler:^(FRHyperLabel *label, NSString *substring){
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://www.google.com"]];
}];`
This may sound trivial, but worth mentioning: You have to build the service (in Visual Studio) - then a DLL will be created in the bin subfolder.
When the service is "deployed" on a server - that bin folder needs to have that DLL file in it - otherwise this error will be thrown...
I think, It will work.
.Myclass tr td:first-child{ }
or
.Myclass td:first-child { }
Actually Windows does have a utility that encodes and decodes base64 - CERTUTIL
I'm not sure what version of Windows introduced this command.
To encode a file:
certutil -encode inputFileName encodedOutputFileName
To decode a file:
certutil -decode encodedInputFileName decodedOutputFileName
There are a number of available verbs and options available to CERTUTIL.
To get a list of nearly all available verbs:
certutil -?
To get help on a particular verb (-encode for example):
certutil -encode -?
To get complete help for nearly all verbs:
certutil -v -?
Mysteriously, the -encodehex
verb is not listed with certutil -?
or certutil -v -?
. But it is described using certutil -encodehex -?
. It is another handy function :-)
Regarding David Morales' comment, there is a poorly documented type option to the -encodehex
verb that allows creation of base64 strings without header or footer lines.
certutil [Options] -encodehex inFile outFile [type]
A type of 1 will yield base64 without the header or footer lines.
See https://www.dostips.com/forum/viewtopic.php?f=3&t=8521#p56536 for a brief listing of the available type formats. And for a more in depth look at the available formats, see https://www.dostips.com/forum/viewtopic.php?f=3&t=8521#p57918.
Not investigated, but the -decodehex
verb also has an optional trailing type argument.
Either
render partial: 'user', locals: {size: 30}
Or
render 'user', size: 30
To use locals
, you need partial
. Without the partial
argument, you can just list variables directly (not within locals
)
Completeness
You need to check both $mysqli
and $statement
. If they are false, you need to output $mysqli->error
or $statement->error
respectively.
Efficiency
For simple scripts that may terminate, I use simple one-liners that trigger a PHP error with the message. For a more complex application, an error warning system should be activated instead, for example by throwing an exception.
Usage example 1: Simple script
# This is in a simple command line script
$mysqli = new mysqli('localhost', 'buzUser', 'buzPassword');
$q = "UPDATE foo SET bar=1";
($statement = $mysqli->prepare($q)) or trigger_error($mysqli->error, E_USER_ERROR);
$statement->execute() or trigger_error($statement->error, E_USER_ERROR);
Usage example 2: Application
# This is part of an application
class FuzDatabaseException extends Exception {
}
class Foo {
public $mysqli;
public function __construct(mysqli $mysqli) {
$this->mysqli = $mysqli;
}
public function updateBar() {
$q = "UPDATE foo SET bar=1";
$statement = $this->mysqli->prepare($q);
if (!$statement) {
throw new FuzDatabaseException($mysqli->error);
}
if (!$statement->execute()) {
throw new FuzDatabaseException($statement->error);
}
}
}
$foo = new Foo(new mysqli('localhost','buzUser','buzPassword'));
try {
$foo->updateBar();
} catch (FuzDatabaseException $e)
$msg = $e->getMessage();
// Now send warning emails, write log
}
you may be create function before so, update your function again using.
Alter FUNCTION dbo.Afisho_rankimin(@emri_rest int)
RETURNS int
AS
BEGIN
Declare @rankimi int
Select @rankimi=dbo.RESTORANTET.Rankimi
From RESTORANTET
Where dbo.RESTORANTET.ID_Rest=@emri_rest
RETURN @rankimi
END
GO
SELECT dbo.Afisho_rankimin(5) AS Rankimi
GO
Enable 'Managed Compatibility Mode'. Go to Tools->Options->Debugging and enable Managed Compatibility Mode.
The And
operator will check all conditions in the statement before continuing, whereas the Andalso operator will stop if it knows the condition is false. For example:
if x = 5 And y = 7
Checks if x is equal to 5, and if y is equal to 7, then continues if both are true.
if x = 5 AndAlso y = 7
Checks if x is equal to 5. If it's not, it doesn't check if y is 7, because it knows that the condition is false already. (This is called short-circuiting.)
Generally people use the short-circuiting method if there's a reason to explicitly not check the second part if the first part is not true, such as if it would throw an exception if checked. For example:
If Not Object Is Nothing AndAlso Object.Load()
If that used And
instead of AndAlso
, it would still try to Object.Load()
even if it were nothing
, which would throw an exception.
Here is an approach that doesn't require the use of a for
loop or defining an intermediate function or lambda function (and is also a one-liner). The method combines the following two ideas:
calling the iter()
built-in function with the optional sentinel argument, and
using the itertools
recipe for advancing an iterator n
steps (see the recipe for consume()
).
Putting these together, we get:
next(islice(iter(do, object()), 3, 3), None)
(The idea to pass object()
as the sentinel comes from this accepted Stack Overflow answer.)
And here is what this looks like from the interactive prompt:
>>> def do():
... print("called")
...
>>> next(itertools.islice(iter(do, object()), 3, 3), None)
called
called
called
You can probably add two foreign key constraints (honestly: I've never tried it), but it'd then insist the parent row exist in both tables.
Instead you probably want to create a supertype for your two employee subtypes, and then point the foreign key there instead. (Assuming you have a good reason to split the two types of employees, of course).
employee
employees_ce ———————— employees_sn
———————————— type ————————————
empid —————————> empid <——————— empid
name /|\ name
|
|
deductions |
—————————— |
empid ————————+
name
type
in the employee table would be ce
or sn
.
try:
var t = HttpUtility.JavaScriptStringEncode(s);
Yes, it is absolutely no problem. You could even have multiple versions of both 32bit and 64bit Java installed at the same time on the same machine.
In fact, i have such a setup myself.
The dot trick will likely ruin your rss feeds and/or pagination. These work, though:
add_filter('category_rewrite_rules', 'no_category_base_rewrite_rules');
function no_category_base_rewrite_rules($category_rewrite) {
$category_rewrite=array();
$categories=get_categories(array('hide_empty'=>false));
foreach($categories as $category) {
$category_nicename = $category->slug;
if ( $category->parent == $category->cat_ID )
$category->parent = 0;
elseif ($category->parent != 0 )
$category_nicename = get_category_parents( $category->parent, false, '/', true ) . $category_nicename;
$category_rewrite['('.$category_nicename.')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
$category_rewrite['('.$category_nicename.')/page/?([0-9]{1,})/?$'] = 'index.php?category_name=$matches[1]&paged=$matches[2]';
$category_rewrite['('.$category_nicename.')/?$'] = 'index.php?category_name=$matches[1]';
}
global $wp_rewrite;
$old_base = $wp_rewrite->get_category_permastruct();
$old_base = str_replace( '%category%', '(.+)', $old_base );
$old_base = trim($old_base, '/');
$category_rewrite[$old_base.'$'] = 'index.php?category_redirect=$matches[1]';
return $category_rewrite;
}
// remove tag base
add_filter('tag_rewrite_rules', 'no_tag_base_rewrite_rules');
function no_tag_base_rewrite_rules($tag_rewrite) {
$tag_rewrite=array();
$tags=get_tags(array('hide_empty'=>false));
foreach($tags as $tag) {
$tag_nicename = $tag->slug;
if ( $tag->parent == $tag->tag_ID )
$tag->parent = 0;
elseif ($tag->parent != 0 )
$tag_nicename = get_tag_parents( $tag->parent, false, '/', true ) . $tag_nicename;
$tag_rewrite['('.$tag_nicename.')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?tag=$matches[1]&feed=$matches[2]';
$tag_rewrite['('.$tag_nicename.')/page/?([0-9]{1,})/?$'] = 'index.php?tag=$matches[1]&paged=$matches[2]';
$tag_rewrite['('.$tag_nicename.')/?$'] = 'index.php?tag=$matches[1]';
}
global $wp_rewrite;
$old_base = $wp_rewrite->get_tag_permastruct();
$old_base = str_replace( '%tag%', '(.+)', $old_base );
$old_base = trim($old_base, '/');
$tag_rewrite[$old_base.'$'] = 'index.php?tag_redirect=$matches[1]';
return $tag_rewrite;
}
// remove author base
add_filter('author_rewrite_rules', 'no_author_base_rewrite_rules');
function no_author_base_rewrite_rules($author_rewrite) {
global $wpdb;
$author_rewrite = array();
$authors = $wpdb->get_results("SELECT user_nicename AS nicename from $wpdb->users");
foreach($authors as $author) {
$author_rewrite["({$author->nicename})/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$"] = 'index.php?author_name=$matches[1]&feed=$matches[2]';
$author_rewrite["({$author->nicename})/page/?([0-9]+)/?$"] = 'index.php?author_name=$matches[1]&paged=$matches[2]';
$author_rewrite["({$author->nicename})/?$"] = 'index.php?author_name=$matches[1]';
}
return $author_rewrite;}
add_filter('author_link', 'no_author_base', 1000, 2);
function no_author_base($link, $author_id) {
$link_base = trailingslashit(get_option('home'));
$link = preg_replace("|^{$link_base}author/|", '', $link);
return $link_base . $link;
}
re.match attempts to match a pattern at the beginning of the string. re.search attempts to match the pattern throughout the string until it finds a match.
EXISTS
will tell you whether a query returned any results. e.g.:
SELECT *
FROM Orders o
WHERE EXISTS (
SELECT *
FROM Products p
WHERE p.ProductNumber = o.ProductNumber)
IN
is used to compare one value to several, and can use literal values, like this:
SELECT *
FROM Orders
WHERE ProductNumber IN (1, 10, 100)
You can also use query results with the IN
clause, like this:
SELECT *
FROM Orders
WHERE ProductNumber IN (
SELECT ProductNumber
FROM Products
WHERE ProductInventoryQuantity > 0)
I had this problem before and I made fallback way for loading. Basically first way work within .jar file and second way works within eclipse or other IDE.
public class MyClass {
public static InputStream accessFile() {
String resource = "my-file-located-in-resources.txt";
// this is the path within the jar file
InputStream input = MyClass.class.getResourceAsStream("/resources/" + resource);
if (input == null) {
// this is how we load file within editor (eg eclipse)
input = MyClass.class.getClassLoader().getResourceAsStream(resource);
}
return input;
}
}
Besides describeBy
, the doBy
package is an another option. It provides much of the functionality of SAS PROC SUMMARY. Details:
http://www.statmethods.net/stats/descriptives.html
The two calls have different meanings that have nothing to do with performance; the fact that it speeds up the execution time is (or might be) just a side effect. You should understand what each of them does and not blindly include them in every program because they look like an optimization.
ios_base::sync_with_stdio(false);
This disables the synchronization between the C and C++ standard streams. By default, all standard streams are synchronized, which in practice allows you to mix C- and C++-style I/O and get sensible and expected results. If you disable the synchronization, then C++ streams are allowed to have their own independent buffers, which makes mixing C- and C++-style I/O an adventure.
Also keep in mind that synchronized C++ streams are thread-safe (output from different threads may interleave, but you get no data races).
cin.tie(NULL);
This unties cin
from cout
. Tied streams ensure that one stream is flushed automatically before each I/O operation on the other stream.
By default cin
is tied to cout
to ensure a sensible user interaction. For example:
std::cout << "Enter name:";
std::cin >> name;
If cin
and cout
are tied, you can expect the output to be flushed (i.e., visible on the console) before the program prompts input from the user. If you untie the streams, the program might block waiting for the user to enter their name but the "Enter name" message is not yet visible (because cout
is buffered by default, output is flushed/displayed on the console only on demand or when the buffer is full).
So if you untie cin
from cout
, you must make sure to flush cout
manually every time you want to display something before expecting input on cin
.
In conclusion, know what each of them does, understand the consequences, and then decide if you really want or need the possible side effect of speed improvement.
What do you mean by an "anonymous object?" myObj
is not anonymous since you've assigned an object literal to a variable. You can just test this:
if (typeof myObj.prop2 === 'function')
{
// do whatever
}
Please set your form action attribute as below it will solve your problem.
<form name="addProductForm" id="addProductForm" action="javascript:;" enctype="multipart/form-data" method="post" accept-charset="utf-8">
jQuery code:
$(document).ready(function () {
$("#addProductForm").submit(function (event) {
//disable the default form submission
event.preventDefault();
//grab all form data
var formData = $(this).serialize();
$.ajax({
url: 'addProduct.php',
type: 'POST',
data: formData,
async: false,
cache: false,
contentType: false,
processData: false,
success: function () {
alert('Form Submitted!');
},
error: function(){
alert("error in ajax form submission");
}
});
return false;
});
});
int val = '1' - 48;
in my case: /home/username/.local/bin/virtualenvwrapper.sh
I use spring 3.2.3 and here is how I solved similar problem.
1) Added RedirectAttributes redirectAttributes to the method parameter list in controller 1.
public String controlMapping1(
@ModelAttribute("mapping1Form") final Object mapping1FormObject,
final BindingResult mapping1BindingResult,
final Model model,
final RedirectAttributes redirectAttributes)
2) Inside the method added code to add flash attribute to redirectAttributes redirectAttributes.addFlashAttribute("mapping1Form", mapping1FormObject);
3) Then, in the second contoller use method parameter annotated with @ModelAttribute to access redirect Attributes
@ModelAttribute("mapping1Form") final Object mapping1FormObject
Here is the sample code from Controller 1:
@RequestMapping(value = { "/mapping1" }, method = RequestMethod.POST)
public String controlMapping1(
@ModelAttribute("mapping1Form") final Object mapping1FormObject,
final BindingResult mapping1BindingResult,
final Model model,
final RedirectAttributes redirectAttributes) {
redirectAttributes.addFlashAttribute("mapping1Form", mapping1FormObject);
return "redirect:mapping2";
}
From Contoller 2:
@RequestMapping(value = "/mapping2", method = RequestMethod.GET)
public String controlMapping2(
@ModelAttribute("mapping1Form") final Object mapping1FormObject,
final BindingResult mapping1BindingResult,
final Model model) {
model.addAttribute("transformationForm", mapping1FormObject);
return "new/view";
}
RUN: Can be many, and it is used in build process, e.g. install multiple libraries
CMD: Can only have 1, which is your execute start point (e.g. ["npm", "start"]
, ["node", "app.js"]
)
try
yum install php-pdo
yum install php-pdo_mysql
service httpd restart
You missed a space: db.execSQL("delete * from " + TABLE_NAME);
Also there is no need to even include *
, the correct query is:
db.execSQL("delete from "+ TABLE_NAME);
Always use heading tags for headings. The clue is in the name :)
If you don’t want them to be bold, change their style with CSS. For example:
<h3 class="list-heading">heading</h3>
<ul>
<li>list item </li>
<li>list item </li>
<li>list item </li>
</ul>
.list-heading {
font-weight: normal;
}
In HTML5, you can associate the heading and the list more clearly by using the <section>
element. (<section>
doesn’t work properly in IE 8 and earlier without some JavaScript though.)
<section>
<h1>heading</h1>
<ul>
<li>list item </li>
<li>list item </li>
<li>list item </li>
</ul>
</section>
You could do something similar in HTML 4:
<div class="list-with-heading">
<h3>Heading</h3>
<ul>
<li>list item </li>
<li>list item </li>
<li>list item </li>
</ul>
</div>
Then style thus:
.list-with-heading h3 {
font-weight: normal;
}
I had to add set noundofile
to ~_gvimrc
The "~" directory can be identified by changing the directory with the cd ~
command
If your button weren't floated, you could use vertical-align:middle;
to center the text inside it. After lots of experimentation, this was the only solution I could find that worked in IE without changing markup. (in Chrome, button text seems to be automatically centered without this hack).
But you use a float:left
which forces the element to be a block element (your display:inline-block
is ignored), whcih in turn prevents vertical-align from working because vertical-align doesn't work inside a block element.
So you have three choices:
inline
and inline-block
elements to simulate floating.you can use this one in onCreateView, you can use transaction or replace
OnBackPressedCallback callback = new OnBackPressedCallback(true) {
@Override
public void handleOnBackPressed() {
//what you want to do
}
};
requireActivity().getOnBackPressedDispatcher().addCallback(this, callback);
You are right about HashTable
, you can forget about it.
Your article mentions the fact that while HashTable and the synchronized wrapper class provide basic thread-safety by only allowing one thread at a time to access the map, this is not 'true' thread-safety since many compound operations still require additional synchronization, for example:
synchronized (records) {
Record rec = records.get(id);
if (rec == null) {
rec = new Record(id);
records.put(id, rec);
}
return rec;
}
However, don't think that ConcurrentHashMap
is a simple alternative for a HashMap
with a typical synchronized
block as shown above. Read this article to understand its intricacies better.
The problem is caused by your #grid
having a width:1140px
.
You need to set a min-width:1140px
on the body
.
This will stop the body
from getting smaller than the #grid
. Remove width:100%
as block level elements take up the available width by default. Live example: http://jsfiddle.net/tw16/LX8R3/
html, body{
margin:0;
padding:0;
min-width: 1140px; /* this is the important part*/
}
#grid-container{
background:#f8f8f8 url(../images/grid-container-bg.gif) repeat-x top left;
}
#grid{
width:1140px;
margin:0px auto;
}
This is in fact the best example ever for Image Zoom and Pan in android,
http://blog.sephiroth.it/2011/04/04/imageview-zoom-and-scroll/
string connString = "<your connection string>";
string sql = "name of your sp";
using(SqlConnection conn = new SqlConnection(connString))
{
try
{
using(SqlDataAdapter da = new SqlDataAdapter())
{
da.SelectCommand = new SqlCommand(sql, conn);
da.SelectCommand.CommandType = CommandType.StoredProcedure;
DataSet ds = new DataSet();
da.Fill(ds, "result_name");
DataTable dt = ds.Tables["result_name"];
foreach (DataRow row in dt.Rows) {
//manipulate your data
}
}
}
catch(SQLException ex)
{
Console.WriteLine("SQL Error: " + ex.Message);
}
catch(Exception e)
{
Console.WriteLine("Error: " + e.Message);
}
}
Modified from Java Schools Example
What you need to do is to add phpmyadmin to the apache configuration:???????
sudo nano /etc/apache2/apache2.conf
Add the phpmyadmin config to the file:
Include /etc/phpmyadmin/apache.conf
Then restart apache:
sudo service apache2 restart
On ubuntu 18.0.1, I think you can just navigate to the apache2 config file and include the phpmyadmin config file as shown above, then restart apache
For your specific example, you don't actually need to nest them. If the expression in the try
block succeeds, the function will return, so any code after the whole try/except block will only be run if the first attempt fails. So you can just do:
def __getattribute__(self, item):
try:
return object.__getattribute__(item)
except AttributeError:
pass
# execution only reaches here when try block raised AttributeError
try:
return self.dict[item]
except KeyError:
print "The object doesn't have such attribute"
Nesting them isn't bad, but I feel like leaving it flat makes the structure more clear: you're sequentially trying a series of things and returning the first one that works.
Incidentally, you might want to think about whether you really want to use __getattribute__
instead of __getattr__
here. Using __getattr__
will simplify things because you'll know that the normal attribute lookup process has already failed.
A regex will probably be quite efficient, because you would specify ranges: [0-9a-zA-Z]
. Assuming the implementation code for regexes is efficient, this would simply require an upper and lower bound comparison for each range. Here's basically what a compiled regex should do:
boolean isAlphanumeric(String str) {
for (int i=0; i<str.length(); i++) {
char c = str.charAt(i);
if (c < 0x30 || (c >= 0x3a && c <= 0x40) || (c > 0x5a && c <= 0x60) || c > 0x7a)
return false;
}
return true;
}
I don't see how your code could be more efficient than this, because every character will need to be checked, and the comparisons couldn't really be any simpler.
Greenlock handles certificate issuance and renewal (via Let's Encrypt) and http => https redirection, out-of-the box.
express-app.js
:
var express = require('express');
var app = express();
app.use('/', function (req, res) {
res.send({ msg: "Hello, Encrypted World!" })
});
// DO NOT DO app.listen()
// Instead export your app:
module.exports = app;
server.js
:
require('greenlock-express').create({
// Let's Encrypt v2 is ACME draft 11
version: 'draft-11'
, server: 'https://acme-v02.api.letsencrypt.org/directory'
// You MUST change these to valid email and domains
, email: '[email protected]'
, approveDomains: [ 'example.com', 'www.example.com' ]
, agreeTos: true
, configDir: "/path/to/project/acme/"
, app: require('./express-app.j')
, communityMember: true // Get notified of important updates
, telemetry: true // Contribute telemetry data to the project
}).listen(80, 443);
Watch the QuickStart demonstration: https://youtu.be/e8vaR4CEZ5s
Just answering this ahead-of-time because it's a common follow-up question:
You can't have SSL certificates on localhost. However, you can use something like Telebit which will allow you to run local apps as real ones.
You can also use private domains with Greenlock via DNS-01 challenges, which is mentioned in the README along with various plugins which support it.
Read the note above about localhost - you can't use non-standard ports with Let's Encrypt either.
However, you can expose your internal non-standard ports as external standard ports via port-forward, sni-route, or use something like Telebit that does SNI-routing and port-forwarding / relaying for you.
You can also use DNS-01 challenges in which case you won't need to expose ports at all and you can also secure domains on private networks this way.
Sent through a pull-request to the pip folks; in the meantime use this pip library solution I wrote:
from pip import get_installed_distributions
from pip.commands import install
install_cmd = install.InstallCommand()
options, args = install_cmd.parse_args([package.project_name
for package in
get_installed_distributions()])
options.upgrade = True
install_cmd.run(options, args) # Chuck this in a try/except and print as wanted
adding HttpClientModule
in app.module.ts
file in import
section fixed my issue.
If you want to get content of given directory, and only it (i.e. no subdirectories), the best way is to use opendir/readdir/closedir:
opendir my $dir, "/some/path" or die "Cannot open directory: $!";
my @files = readdir $dir;
closedir $dir;
You can also use:
my @files = glob( $dir . '/*' );
But in my opinion it is not as good - mostly because glob is quite complex thing (can filter results automatically) and using it to get all elements of directory seems as a too simple task.
On the other hand, if you need to get content from all of the directories and subdirectories, there is basically one standard solution:
use File::Find;
my @content;
find( \&wanted, '/some/path');
do_something_with( @content );
exit;
sub wanted {
push @content, $File::Find::name;
return;
}
DateTime dt = new DateTime();// gives 01/01/0001 12:00:00 AM
DateTime dt = DateTime.Now;// gives today date with current time
DateTime dt = DateTime.Today;// gives today date and 12:00:00 AM time
There's no need for multiple shadows or anything fancy like that, you just have to offset your shadow in the negative y-axis.
For dark text on a light background:
text-shadow: 0px -1px 0px rgba(0, 0, 0, .75);
If you have a dark background then you can simply invert the color and y-position:
text-shadow: 0px 1px 0px rgba(255, 255, 255, 0.75);
Play around with the rgba values, the opacity, and the blur to get the effect just right. It will depend a lot on what color font and background you have, and the weightier the font, the better.
You could try putting the e-mails into a comma-delimited string ("[email protected], [email protected]"
):
C#:
ArrayList arEmails = new ArrayList();
arEmails.Add("[email protected]");
arEmails.Add("[email protected]");
string strEmails = string.Join(", ", arEmails);
VB.NET if you're interested:
Dim arEmails As New ArrayList
arEmails.Add("[email protected]")
arEmails.Add("[email protected]")
Dim strEmails As String = String.Join(", ", arEmails)
Using the onclick
attribute or applying a function to your JS onclick
properties will erase your onclick
initialization in <head>
.
What you need to do is add click events on your button. To do that you’ll need the addEventListener
or attachEvent
(IE) method.
<!DOCTYPE html>
<html>
<head>
<script>
function addEvent(obj, event, func) {
if (obj.addEventListener) {
obj.addEventListener(event, func, false);
return true;
} else if (obj.attachEvent) {
obj.attachEvent('on' + event, func);
} else {
var f = obj['on' + event];
obj['on' + event] = typeof f === 'function' ? function() {
f();
func();
} : func
}
}
function f1()
{
alert("f1 called");
//form validation that recalls the page showing with supplied inputs.
}
</script>
</head>
<body>
<form name="form1" id="form1" method="post">
State: <select id="state ID">
<option></option>
<option value="ap">ap</option>
<option value="bp">bp</option>
</select>
</form>
<table><tr><td id="Save" onclick="f1()">click</td></tr></table>
<script>
addEvent(document.getElementById('Save'), 'click', function() {
alert('hello');
});
</script>
</body>
</html>
I had this happen when I was trying to use a deployment key because that is exactly what I wanted.
I could connect via ssh -T [email protected]
and it would tell me I had access to read the repository I wanted, but git clone
would fail.
Clearing out ~/.ssh/known_hosts
, generating a new key via ssh-keygen
, adding that new key to bitbucket, and retrying fixed it for me.
Compare every key in mapB against the counterpart in mapA. Then check if there is any key in mapA not existing in mapB
public boolean mapsAreEqual(Map<String, String> mapA, Map<String, String> mapB) {
try{
for (String k : mapB.keySet())
{
if (!mapA.get(k).equals(mapB.get(k))) {
return false;
}
}
for (String y : mapA.keySet())
{
if (!mapB.containsKey(y)) {
return false;
}
}
} catch (NullPointerException np) {
return false;
}
return true;
}
The solution from brettdj works fantastically, but if you are coming across this as a potential solution for the same reason I was, I thought that I would offer my alternative solution.
The problem I was having was scrolling to a specific column based on the output of a MATCH() function. Instead of converting the column number to its column letter parallel, I chose to temporarily toggle the reference style from A1 to R1C1. This way I could just scroll to the column number without having to muck with a VBA function. To easily toggle between the two reference styles, you can use this VBA code:
Sub toggle_reference_style()
If Application.ReferenceStyle = xlR1C1 Then
Application.ReferenceStyle = xlA1
Else
Application.ReferenceStyle = xlR1C1
End If
End Sub
The cc and cxx is located inside /Applications/Xcode.app
. This should find the right paths
export CXX=`xcrun -find c++`
export CC=`xcrun -find cc`
You can define environment variables in the crontab itself when running crontab -e
from the command line.
LANG=nb_NO.UTF-8
LC_ALL=nb_NO.UTF-8
# m h dom mon dow command
* * * * * sleep 5s && echo "yo"
This feature is only available to certain implementations of cron. Ubuntu and Debian currently use vixie-cron which allows these to be declared in the crontab file (also GNU mcron).
Archlinux and RedHat use cronie which does not allow environment variables to be declared and will throw syntax errors in the cron.log. Workaround can be done per-entry:
# m h dom mon dow command
* * * * * export LC_ALL=nb_NO.UTF-8; sleep 5s && echo "yo"
Do:
NSData *data = [yourString dataUsingEncoding:NSUTF8StringEncoding];
then feel free to proceed with NSJSONSerialization:JSONObjectWithData
.
Following the comments, official documentation, and verifications, this answer was updated regarding the removal of an alleged NULL terminator:
As documented by dataUsingEncoding::
Return Value
The result of invoking
dataUsingEncoding:allowLossyConversion:
with NO as the second argument
As documented by getCString:maxLength:encoding: and cStringUsingEncoding::
note that the data returned by
dataUsingEncoding:allowLossyConversion:
is not a strict C-string since it does not have a NULL terminator
If you have access to your apache install and trust third-party code, you can use the apache upload progress module (if you use apache; there's also a nginx upload progress module).
Otherwise, you'd have to write a script that you can hit out of band to request the status of the file (checking the filesize of the tmp file for instance).
There's some work going on in firefox 3 I believe to add upload progress support to the browser, but that's not going to get into all the browsers and be widely adopted for a while (more's the pity).
sep='\t'
is often used for Tab-delimited file.
I've got a simple method without splitting:
a = "Lorem Ipsum Darum Diesrum!"
while True:
count = a.find(" ")
if count > 0:
a = a.replace(" ", " ")
count = a.find(" ")
continue
else:
break
print(a)
When you typed in sudo sendmailconfig
, you should have been prompted to configure sendmail.
For reference, the files that are updated during configuration are located at the following (in case you want to update them manually):
/etc/mail/sendmail.conf
/etc/cron.d/sendmail
/etc/mail/sendmail.mc
You can test sendmail to see if it is properly configured and setup by typing the following into the command line:
$ echo "My test email being sent from sendmail" | /usr/sbin/sendmail [email protected]
The following will allow you to add smtp relay to sendmail:
#Change to your mail config directory:
cd /etc/mail
#Make a auth subdirectory
mkdir auth
chmod 700 auth
#Create a file with your auth information to the smtp server
cd auth
touch client-info
#In the file, put the following, matching up to your smtp server:
AuthInfo:your.isp.net "U:root" "I:user" "P:password"
#Generate the Authentication database, make both files readable only by root
makemap hash client-info < client-info
chmod 600 client-info
cd ..
Add the following lines to sendmail.mc, but before the MAILERDEFINITIONS
. Make sure you update your smtp server.
define(`SMART_HOST',`your.isp.net')dnl
define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
FEATURE(`authinfo',`hash -o /etc/mail/auth/client-info.db')dnl
Invoke creation sendmail.cf (alternatively run make -C /etc/mail
):
m4 sendmail.mc > sendmail.cf
Restart the sendmail daemon:
service sendmail restart
I took miku's answer and jsch example code. I then had to download multiple files during the session and preserve original timestamps. This is my example code how to do it, probably many people find it usefull. Please ignore filenameHack() function its my own usecase.
package examples;
import com.jcraft.jsch.*;
import java.io.*;
import java.util.*;
public class ScpFrom2 {
public static void main(String[] args) throws Exception {
Map<String,String> params = parseParams(args);
if (params.isEmpty()) {
System.err.println("usage: java ScpFrom2 "
+ " user=myid password=mypwd"
+ " host=myhost.com port=22"
+ " encoding=<ISO-8859-1,UTF-8,...>"
+ " \"remotefile1=/some/file.png\""
+ " \"localfile1=file.png\""
+ " \"remotefile2=/other/file.txt\""
+ " \"localfile2=file.txt\""
);
return;
}
// default values
if (params.get("port") == null)
params.put("port", "22");
if (params.get("encoding") == null)
params.put("encoding", "ISO-8859-1"); //"UTF-8"
Session session = null;
try {
JSch jsch=new JSch();
session=jsch.getSession(
params.get("user"), // myuserid
params.get("host"), // my.server.com
Integer.parseInt(params.get("port")) // 22
);
session.setPassword( params.get("password") );
session.setConfig("StrictHostKeyChecking", "no"); // do not prompt for server signature
session.connect();
// this is exec command and string reply encoding
String encoding = params.get("encoding");
int fileIdx=0;
while(true) {
fileIdx++;
String remoteFile = params.get("remotefile"+fileIdx);
String localFile = params.get("localfile"+fileIdx);
if (remoteFile == null || remoteFile.equals("")
|| localFile == null || localFile.equals("") )
break;
remoteFile = filenameHack(remoteFile);
localFile = filenameHack(localFile);
try {
downloadFile(session, remoteFile, localFile, encoding);
} catch (Exception ex) {
ex.printStackTrace();
}
}
} catch(Exception ex) {
ex.printStackTrace();
} finally {
try{ session.disconnect(); } catch(Exception ex){}
}
}
private static void downloadFile(Session session,
String remoteFile, String localFile, String encoding) throws Exception {
// send exec command: scp -p -f "/some/file.png"
// -p = read file timestamps
// -f = From remote to local
String command = String.format("scp -p -f \"%s\"", remoteFile);
System.console().printf("send command: %s%n", command);
Channel channel=session.openChannel("exec");
((ChannelExec)channel).setCommand(command.getBytes(encoding));
// get I/O streams for remote scp
byte[] buf=new byte[32*1024];
OutputStream out=channel.getOutputStream();
InputStream in=channel.getInputStream();
channel.connect();
buf[0]=0; out.write(buf, 0, 1); out.flush(); // send '\0'
// reply: T<mtime> 0 <atime> 0\n
// times are in seconds, since 1970-01-01 00:00:00 UTC
int c=checkAck(in);
if(c!='T')
throw new IOException("Invalid timestamp reply from server");
long tsModified = -1; // millis
for(int idx=0; ; idx++){
in.read(buf, idx, 1);
if(tsModified < 0 && buf[idx]==' ') {
tsModified = Long.parseLong(new String(buf, 0, idx))*1000;
} else if(buf[idx]=='\n') {
break;
}
}
buf[0]=0; out.write(buf, 0, 1); out.flush(); // send '\0'
// reply: C0644 <binary length> <filename>\n
// length is given as a text "621873" bytes
c=checkAck(in);
if(c!='C')
throw new IOException("Invalid filename reply from server");
in.read(buf, 0, 5); // read '0644 ' bytes
long filesize=-1;
for(int idx=0; ; idx++){
in.read(buf, idx, 1);
if(buf[idx]==' ') {
filesize = Long.parseLong(new String(buf, 0, idx));
break;
}
}
// read remote filename
String origFilename=null;
for(int idx=0; ; idx++){
in.read(buf, idx, 1);
if(buf[idx]=='\n') {
origFilename=new String(buf, 0, idx, encoding); // UTF-8, ISO-8859-1
break;
}
}
System.console().printf("size=%d, modified=%d, filename=%s%n"
, filesize, tsModified, origFilename);
buf[0]=0; out.write(buf, 0, 1); out.flush(); // send '\0'
// read binary data, write to local file
FileOutputStream fos = null;
try {
File file = new File(localFile);
fos = new FileOutputStream(file);
while(filesize > 0) {
int read = Math.min(buf.length, (int)filesize);
read=in.read(buf, 0, read);
if(read < 0)
throw new IOException("Reading data failed");
fos.write(buf, 0, read);
filesize -= read;
}
fos.close(); // we must close file before updating timestamp
fos = null;
if (tsModified > 0)
file.setLastModified(tsModified);
} finally {
try{ if (fos!=null) fos.close(); } catch(Exception ex){}
}
if(checkAck(in) != 0)
return;
buf[0]=0; out.write(buf, 0, 1); out.flush(); // send '\0'
System.out.println("Binary data read");
}
private static int checkAck(InputStream in) throws IOException {
// b may be 0 for success
// 1 for error,
// 2 for fatal error,
// -1
int b=in.read();
if(b==0) return b;
else if(b==-1) return b;
if(b==1 || b==2) {
StringBuilder sb=new StringBuilder();
int c;
do {
c=in.read();
sb.append((char)c);
} while(c!='\n');
throw new IOException(sb.toString());
}
return b;
}
/**
* Parse key=value pairs to hashmap.
* @param args
* @return
*/
private static Map<String,String> parseParams(String[] args) throws Exception {
Map<String,String> params = new HashMap<String,String>();
for(String keyval : args) {
int idx = keyval.indexOf('=');
params.put(
keyval.substring(0, idx),
keyval.substring(idx+1)
);
}
return params;
}
private static String filenameHack(String filename) {
// It's difficult reliably pass unicode input parameters
// from Java dos command line.
// This dirty hack is my very own test use case.
if (filename.contains("${filename1}"))
filename = filename.replace("${filename1}", "Korilla ABC ÅÄÖ.txt");
else if (filename.contains("${filename2}"))
filename = filename.replace("${filename2}", "test2 ABC ÅÄÖ.txt");
return filename;
}
}
Your if
statement is always false and T
gets initialized only if a condition is met, so the code doesn't reach the point where T
gets a value (and by that, gets defined/bound). You should introduce the variable in a place that always gets executed.
Try:
def temp_sky(lreq, breq):
T = <some_default_value> # None is often a good pick
for line in tfile:
data = line.split()
if abs(float(data[0])-lreq) <= 0.1 and abs(float(data[1])-breq) <= 0.1:
T = data[2]
return T
if any interested I've made a typescript version:
interface IResizeImageOptions {
maxSize: number;
file: File;
}
const resizeImage = (settings: IResizeImageOptions) => {
const file = settings.file;
const maxSize = settings.maxSize;
const reader = new FileReader();
const image = new Image();
const canvas = document.createElement('canvas');
const dataURItoBlob = (dataURI: string) => {
const bytes = dataURI.split(',')[0].indexOf('base64') >= 0 ?
atob(dataURI.split(',')[1]) :
unescape(dataURI.split(',')[1]);
const mime = dataURI.split(',')[0].split(':')[1].split(';')[0];
const max = bytes.length;
const ia = new Uint8Array(max);
for (var i = 0; i < max; i++) ia[i] = bytes.charCodeAt(i);
return new Blob([ia], {type:mime});
};
const resize = () => {
let width = image.width;
let height = image.height;
if (width > height) {
if (width > maxSize) {
height *= maxSize / width;
width = maxSize;
}
} else {
if (height > maxSize) {
width *= maxSize / height;
height = maxSize;
}
}
canvas.width = width;
canvas.height = height;
canvas.getContext('2d').drawImage(image, 0, 0, width, height);
let dataUrl = canvas.toDataURL('image/jpeg');
return dataURItoBlob(dataUrl);
};
return new Promise((ok, no) => {
if (!file.type.match(/image.*/)) {
no(new Error("Not an image"));
return;
}
reader.onload = (readerEvent: any) => {
image.onload = () => ok(resize());
image.src = readerEvent.target.result;
};
reader.readAsDataURL(file);
})
};
and here's the javascript result:
var resizeImage = function (settings) {
var file = settings.file;
var maxSize = settings.maxSize;
var reader = new FileReader();
var image = new Image();
var canvas = document.createElement('canvas');
var dataURItoBlob = function (dataURI) {
var bytes = dataURI.split(',')[0].indexOf('base64') >= 0 ?
atob(dataURI.split(',')[1]) :
unescape(dataURI.split(',')[1]);
var mime = dataURI.split(',')[0].split(':')[1].split(';')[0];
var max = bytes.length;
var ia = new Uint8Array(max);
for (var i = 0; i < max; i++)
ia[i] = bytes.charCodeAt(i);
return new Blob([ia], { type: mime });
};
var resize = function () {
var width = image.width;
var height = image.height;
if (width > height) {
if (width > maxSize) {
height *= maxSize / width;
width = maxSize;
}
} else {
if (height > maxSize) {
width *= maxSize / height;
height = maxSize;
}
}
canvas.width = width;
canvas.height = height;
canvas.getContext('2d').drawImage(image, 0, 0, width, height);
var dataUrl = canvas.toDataURL('image/jpeg');
return dataURItoBlob(dataUrl);
};
return new Promise(function (ok, no) {
if (!file.type.match(/image.*/)) {
no(new Error("Not an image"));
return;
}
reader.onload = function (readerEvent) {
image.onload = function () { return ok(resize()); };
image.src = readerEvent.target.result;
};
reader.readAsDataURL(file);
});
};
usage is like:
resizeImage({
file: $image.files[0],
maxSize: 500
}).then(function (resizedImage) {
console.log("upload resized image")
}).catch(function (err) {
console.error(err);
});
or (async
/await
):
const config = {
file: $image.files[0],
maxSize: 500
};
const resizedImage = await resizeImage(config)
console.log("upload resized image")
This error occurred because your settings are not correct.
For example I receive
cannot open output file Project1.exe: Permission denied collect2.exe: error: ld returned 1 exit status mingw32-make.exe: *** [Project1.exe] Error 1
Because I have no permission to write on my exe
file.
At the extreme ranges, an unsigned int can become larger than an int.
Therefore, the compiler generates a warning. If you are sure that this is not a problem, feel free to cast the types to the same type so the warning disappears (use C++ cast so that they are easy to spot).
Alternatively, make the variables the same type to stop the compiler from complaining.
I mean, is it possible to have a negative padding? If so then keep it as an int. Otherwise you should probably use unsigned int and let the stream catch the situations where the user types in a negative number.
For me it was because they are not in the same namespace. After I remove my AppStart from "project.Startup.AppStart" and let they both Startup.cs and Startup.Auth.cs with "project.Startup" namespace, everything was back to work perfectly.
I hope it help!
This much code works down for me when using angular 4 as the client side and PHP as the server side.
header("Access-Control-Allow-Origin: *");
Cast the datetime to a date, then GROUP BY using this syntax:
SELECT SUM(foo), DATE(mydate) FROM a_table GROUP BY DATE(a_table.mydate);
Or you can GROUP BY the alias as @orlandu63 suggested:
SELECT SUM(foo), DATE(mydate) DateOnly FROM a_table GROUP BY DateOnly;
Though I don't think it'll make any difference to performance, it is a little clearer.
In NodeJS, __filename.split(/\|//).pop() returns just the file name from the absolute file path on any OS platform. Why need to care about remembering/importing an API while this regex approach also letting us recollect our regex skills.
A subclass in java, is a class that inherits from another class.
Inheritance is a way for classes to add specialized behavior ontop of generalized behavior. This is often represented by the phrase "is a" relationship.
For example, a Triangle
is a Shape
, so it might make sense to implement a Shape class, and have the Triangle class inherit from it. In this example, Shape
is the superclass of Triangle
and Triangle
is the subclass of Shape
setBounds
is used to define the bounding rectangle of a component. This includes it's position and size.
The is used in a number of places within the framework.
For the most part, you should never call it. Instead, you should use appropriate layout managers and let them determine the best way to provide information to this method.
If your find
handles this syntax, you can use it:
find -maxdepth 1 -name "file.txt" -size -90k
This will output file.txt
to stdout if and only if the size of file.txt
is less than 90k. To execute a script script
if file.txt
has a size less than 90k:
find -maxdepth 1 -name "file.txt" -size -90k -exec script \;
In my case, adding a dtype attribute changed dtype of the array to a smaller type(from float64 to uint8), decreasing array size enough to not throw MemoryError in Windows(64 bit).
from
mask = np.zeros(edges.shape)
to
mask = np.zeros(edges.shape,dtype='uint8')
Given below is PHP code to generate tomorrow's date using mktime()
and change its format to dd/mm/yyyy format and then print it using echo
.
$tomorrow = mktime(0, 0, 0, date("m"), date("d") + 1, date("Y"));
echo date("d", $tomorrow) . "/" . date("m", $tomorrow). "/" . date("Y", $tomorrow);
You should write textcolor in xml as
android:textColor="@color/text_color"
or
android:textColor="#FFFFFF"
Maybe this table helps.
Calling the callme()
method of class Parent
or class Child
.
As a principle:
UPCASTING --> Hiding
DOWNCASTING --> Revealing
Open this file:
C:\Program Files\Git\etc\bash.bashrc
And append the following line:
cd /c/Users/<User>/Documents/path/to/your/repos
Restart Git bash
import config.logging_settings # pylint: disable=W0611
That was simple and is specific for that line.
You can and should use the more readable form:
import config.logging_settings # pylint: disable=unused-import
For the people stumbling across this question and getting a similar error message in regards to an nvarchar instead of money:
The given value of type String from the data source cannot be converted to type nvarchar of the specified target column.
This could be caused by a too-short column.
For example, if your column is defined as nvarchar(20)
and you have a 40 character string, you may get this error.
For python, use the
from selenium.webdriver import ActionChains
and
ActionChains(browser).click(element).perform()
Changing the name in res>values>strings.xml will change the app name that is shown in the apps menu after installation
Renaming the android studio project folder (when android studio is closed) will likely satisfy many developers
"mysql" may be found even if mysql and mariadb is uninstalled, but not "mysqld".
Faster than rpm -qa | grep mysqld is:
which mysqld
Both options are already mentioned in the existing answers:
from django.db.models import Q
q1 = User.objects.filter(Q(income__gte=5000) | Q(income__isnull=True))
and
q2 = User.objects.filter(income__gte=5000) | User.objects.filter(income__isnull=True)
However, there seems to be some confusion regarding which one is to prefer.
The point is that they are identical on the SQL level, so feel free to pick whichever you like!
The Django ORM Cookbook talks in some detail about this, here is the relevant part:
queryset = User.objects.filter(
first_name__startswith='R'
) | User.objects.filter(
last_name__startswith='D'
)
leads to
In [5]: str(queryset.query)
Out[5]: 'SELECT "auth_user"."id", "auth_user"."password", "auth_user"."last_login",
"auth_user"."is_superuser", "auth_user"."username", "auth_user"."first_name",
"auth_user"."last_name", "auth_user"."email", "auth_user"."is_staff",
"auth_user"."is_active", "auth_user"."date_joined" FROM "auth_user"
WHERE ("auth_user"."first_name"::text LIKE R% OR "auth_user"."last_name"::text LIKE D%)'
and
qs = User.objects.filter(Q(first_name__startswith='R') | Q(last_name__startswith='D'))
leads to
In [9]: str(qs.query)
Out[9]: 'SELECT "auth_user"."id", "auth_user"."password", "auth_user"."last_login",
"auth_user"."is_superuser", "auth_user"."username", "auth_user"."first_name",
"auth_user"."last_name", "auth_user"."email", "auth_user"."is_staff",
"auth_user"."is_active", "auth_user"."date_joined" FROM "auth_user"
WHERE ("auth_user"."first_name"::text LIKE R% OR "auth_user"."last_name"::text LIKE D%)'
source: django-orm-cookbook
For those having configuration in bin/www
, just add the timeout parameter after http server creation.
var server = http.createServer(app);
/**
* Listen on provided port, on all network interfaces
*/
server.listen(port);
server.timeout=yourValueInMillisecond
You could use the URI Class:
$this->uri->segment(n); // n=1 for controller, n=2 for method, etc
I've also been told that the following work, but am currently unable to test:
$this->router->fetch_class();
$this->router->fetch_method();
RFID tag has more standards. I have developed the RFID tag on Mifare card (ISO 14443A,B) and ISO 15693. Both of them, you can read/write or modify the data in the block data of RFID tag.
If you want the image to load and display a particular image, then use .src
to load that image URL.
If you want a piece of meta data (on any tag) that can contain a URL, then use data-src
or any data-xxx
that you want to select.
MDN documentation on data-xxxx attributes: https://developer.mozilla.org/en-US/docs/DOM/element.dataset
Example of src
on an image tag where the image loads the JPEG for you and displays it:
<img id="myImage" src="http://mydomain.com/foo.jpg">
<script>
var imageUrl = document.getElementById("myImage").src;
</script>
Example of 'data-src' on a non-image tag where the image is not loaded yet - it's just a piece of meta data on the div tag:
<div id="myDiv" data-src="http://mydomain.com/foo.jpg">
<script>
// in all browsers
var imageUrl = document.getElementById("myDiv").getAttribute("data-src");
// or in modern browsers
var imageUrl = document.getElementById("myDiv").dataset.src;
</script>
Example of data-src
on an image tag used as a place to store the URL of an alternate image:
<img id="myImage" src="http://mydomain.com/foo.jpg" data-src="http://mydomain.com/foo.jpg">
<script>
var item = document.getElementById("myImage");
// switch the image to the URL specified in data-src
item.src = item.dataset.src;
</script>
Rather than Runtime.exec(String command)
, you need to use the exec(String command, String[] envp, File dir)
method signature:
Process p = Runtime.getRuntime().exec("cmd /c upsert.bat", null, new File("C:\\Program Files\\salesforce.com\\Data Loader\\cliq_process\\upsert"));
But personally, I'd use ProcessBuilder
instead, which is a little more verbose but much easier to use and debug than Runtime.exec()
.
ProcessBuilder pb = new ProcessBuilder("cmd", "/c", "upsert.bat");
File dir = new File("C:/Program Files/salesforce.com/Data Loader/cliq_process/upsert");
pb.directory(dir);
Process p = pb.start();
following command will download pyyaml
, which also includes yaml
pip install pyYaml
I don't know about your Spring/JAXB combination, but the average REST webservice won't return a response body on POST/PUT, just a response status. You'd like to determine it instead of the body.
Replace
InputStream response = con.getInputStream();
by
int status = con.getResponseCode();
All available status codes and their meaning are available in the HTTP spec, as linked before. The webservice itself should also come along with some documentation which overviews all status codes supported by the webservice and their special meaning, if any.
If the status starts with 4nn
or 5nn
, you'd like to use getErrorStream()
instead to read the response body which may contain the error details.
InputStream error = con.getErrorStream();
Here's two simple examples
> x <- letters[1:4]
> replace(x, 3, 'Z') #replacing 'c' by 'Z'
[1] "a" "b" "Z" "d"
>
> y <- 1:10
> replace(y, c(4,5), c(20,30)) # replacing 4th and 5th elements by 20 and 30
[1] 1 2 3 20 30 6 7 8 9 10
Add a date of modification of js file at the end of your URL. With PHP it would look something like this:
echo '<script type="text/javascript" src="js/something.js?' . filemtime('js/something.js') . '"></script>';
When your script will be reloaded every time you update it.
Check the jQuery FAQ...
You can use the length property of the jQuery collection returned by your selector:
if ( $('#myDiv').length ){}
for ARC change:
change to
@synthesize window;
instead of
@synthesize window=_window;
jcalfee314's idea worked for me - I had a window.onload = onLoad
which meant that the functions in <body onload="...">
were not being called (which I don't have control over).
This fixed it:
oldOnLoad = window.onload
window.onload = onLoad;
function onLoad()
{
oldOnLoad();
...
}
Edit: Firefox didn't like oldOnLoad = document.body.onload;
, so replaced with oldOnLoad = window.onload
.
In your example, You don't need to. As a standard programming practice, all variables being referred to inside some code block, say for example try{} catch(){}
, and being referred to outside the block as well, you need to declare the variables outside the try block first e.g.
This is helpful when your equals method call throws some exception e.g. NullPointerException
;
boolean isMatch = false;
try{
isMatch = email1.equals (email2);
}catch(NullPointerException npe){
.....
}
System.out.print("Match=="+isMatch);
if(isMatch){
......
}
I did not find a clean solution for supporting both lowercase and uppercase characters.
Lowercase only support:
Math.random().toString(36).substr(2, 5)
Building on that solution to support lowercase and uppercase:
Math.random().toString(36).substr(2, 5).split('').map(c => Math.random() < 0.5 ? c.toUpperCase() : c).join('');
Change the 5
in substr(2, 5)
to adjust to the length you need.
My pycharm ce had the same error, was easy to fix it, if someone has that error, just uninstall and delete the folder, use ctrl+h
if you can't find the folder in your documents, install the software again and should work again.
Remember to save the scratches folder before erasing the pycharm folder.
Looks like you're missing the SEPARATOR keyword in the GROUP_CONCAT function.
GROUP_CONCAT(artists.artistname SEPARATOR '----')
The way you've written it, you're concatenating artists.artistname
with the '----'
string using the default comma separator.
I didn't manage to understand what np.reshape()
does until I read this article.
Mechanically it is clear what reshape()
does. But how do we interpret the data before and after reshape?
The missing piece for me was:
When we train a machine learning model, the nesting levels of arrays have precisely defined meaning.
This means that the reshape operation has to be keenly aware both points below before the operation has any meaning:
For example:
The external array contains observations/rows. The inner array contains columns/features. This causes two special cases when we have either an array of multiple observations of only one feature or a single observation of multiple features.
For more advanced example: See this stackoverflow question
#include <cstdlib>
...
exit( exit_code );
In Ionic 2 there's a easier way to do that. See the Ionic Docs.
It is more or less like the following:
<ion-grid>
<ion-row>
<ion-col>
1 of 3
</ion-col>
<ion-col>
2 of 3
</ion-col>
<ion-col>
3 of 3
</ion-col>
</ion-row>
</ion-grid>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:template match="/">
<newBooks>
<xsl:for-each select="books/book">
<newBook>
<countNo><xsl:value-of select="position()"/></countNo>
<title>
<xsl:value-of select="title"/>
</title>
</newBook>
</xsl:for-each>
</newBooks>
</xsl:template>
</xsl:stylesheet>
No, they are not always.
It depends on whether you allow user input to be placed within the query itself. For example:
$dbh = new PDO("blahblah");
$tableToUse = $_GET['userTable'];
$stmt = $dbh->prepare('SELECT * FROM ' . $tableToUse . ' where username = :username');
$stmt->execute( array(':username' => $_REQUEST['username']) );
would be vulnerable to SQL injections and using prepared statements in this example won't work, because the user input is used as an identifier, not as data. The right answer here would be to use some sort of filtering/validation like:
$dbh = new PDO("blahblah");
$tableToUse = $_GET['userTable'];
$allowedTables = array('users','admins','moderators');
if (!in_array($tableToUse,$allowedTables))
$tableToUse = 'users';
$stmt = $dbh->prepare('SELECT * FROM ' . $tableToUse . ' where username = :username');
$stmt->execute( array(':username' => $_REQUEST['username']) );
Note: you can't use PDO to bind data that goes outside of DDL (Data Definition Language), i.e. this does not work:
$stmt = $dbh->prepare('SELECT * FROM foo ORDER BY :userSuppliedData');
The reason why the above does not work is because DESC
and ASC
are not data. PDO can only escape for data. Secondly, you can't even put '
quotes around it. The only way to allow user chosen sorting is to manually filter and check that it's either DESC
or ASC
.
Within the push
method of hashHistory
, you can specify your query parameters. For instance,
history.push({
pathname: '/dresses',
search: '?color=blue'
})
or
history.push('/dresses?color=blue')
You can check out this repository for additional examples on using history
Make sure Blog
has methods equals(Object)
and hashCode()
defined, and addAll(list)
then to a new HashSet()
, or new LinkedHashSet()
if the order is important.
Better yet, use a Set
instead of a List
from the start, since you obviously don't want duplicates, it's better that your data model reflects that rather than having to remove them after the fact.
This may be of help to you. It isn't the stock WPF datagrid however.
I used DevExpress with a custom ColorFormatter behaviour. I couldn't find anything on the market that did this out of the box. This took me a few days to develop. My code attaached below, hopefully this helps someone out there.
Edit: I used POCO view models and MVVM however you could change this to not use POCO if you desire.
Viewmodel.cs
namespace ViewModel
{
[POCOViewModel]
public class Table2DViewModel
{
public ITable2DView Table2DView { get; set; }
public DataTable ItemsTable { get; set; }
public Table2DViewModel()
{
}
public Table2DViewModel(MainViewModel mainViewModel, ITable2DView table2DView) : base(mainViewModel)
{
Table2DView = table2DView;
CreateTable();
}
private void CreateTable()
{
var dt = new DataTable();
var xAxisStrings = new string[]{"X1","X2","X3"};
var yAxisStrings = new string[]{"Y1","Y2","Y3"};
//TODO determine your min, max number for your colours
var minValue = 0;
var maxValue = 100;
Table2DView.SetColorFormatter(minValue,maxValue, null);
//Add the columns
dt.Columns.Add(" ", typeof(string));
foreach (var x in xAxisStrings) dt.Columns.Add(x, typeof(double));
//Add all the values
double z = 0;
for (var y = 0; y < yAxisStrings.Length; y++)
{
var dr = dt.NewRow();
dr[" "] = yAxisStrings[y];
for (var x = 0; x < xAxisStrings.Length; x++)
{
//TODO put your actual values here!
dr[xAxisStrings[x]] = z++; //Add a random values
}
dt.Rows.Add(dr);
}
ItemsTable = dt;
}
public static Table2DViewModel Create(MainViewModel mainViewModel, ITable2DView table2DView)
{
var factory = ViewModelSource.Factory((MainViewModel mainVm, ITable2DView view) => new Table2DViewModel(mainVm, view));
return factory(mainViewModel, table2DView);
}
}
}
IView.cs
namespace Interfaces
{
public interface ITable2DView
{
void SetColorFormatter(float minValue, float maxValue, ColorScaleFormat colorScaleFormat);
}
}
View.xaml.cs
namespace View
{
public partial class Table2DView : ITable2DView
{
public Table2DView()
{
InitializeComponent();
}
static ColorScaleFormat defaultColorScaleFormat = new ColorScaleFormat
{
ColorMin = (Color)ColorConverter.ConvertFromString("#FFF8696B"),
ColorMiddle = (Color)ColorConverter.ConvertFromString("#FFFFEB84"),
ColorMax = (Color)ColorConverter.ConvertFromString("#FF63BE7B")
};
public void SetColorFormatter(float minValue, float maxValue, ColorScaleFormat colorScaleFormat = null)
{
if (colorScaleFormat == null) colorScaleFormat = defaultColorScaleFormat;
ConditionBehavior.MinValue = minValue;
ConditionBehavior.MaxValue = maxValue;
ConditionBehavior.ColorScaleFormat = colorScaleFormat;
}
}
}
DynamicConditionBehavior.cs
namespace Behaviors
{
public class DynamicConditionBehavior : Behavior<GridControl>
{
GridControl Grid => AssociatedObject;
protected override void OnAttached()
{
base.OnAttached();
Grid.ItemsSourceChanged += OnItemsSourceChanged;
}
protected override void OnDetaching()
{
Grid.ItemsSourceChanged -= OnItemsSourceChanged;
base.OnDetaching();
}
public ColorScaleFormat ColorScaleFormat { get; set;}
public float MinValue { get; set; }
public float MaxValue { get; set; }
private void OnItemsSourceChanged(object sender, EventArgs e)
{
var view = Grid.View as TableView;
if (view == null) return;
view.FormatConditions.Clear();
foreach (var col in Grid.Columns)
{
view.FormatConditions.Add(new ColorScaleFormatCondition
{
MinValue = MinValue,
MaxValue = MaxValue,
FieldName = col.FieldName,
Format = ColorScaleFormat,
});
}
}
}
}
View.xaml
<UserControl x:Class="View"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:dxmvvm="http://schemas.devexpress.com/winfx/2008/xaml/mvvm"
xmlns:ViewModels="clr-namespace:ViewModel"
xmlns:dxg="http://schemas.devexpress.com/winfx/2008/xaml/grid"
xmlns:behaviors="clr-namespace:Behaviors"
xmlns:dxdo="http://schemas.devexpress.com/winfx/2008/xaml/docking"
DataContext="{dxmvvm:ViewModelSource Type={x:Type ViewModels:ViewModel}}"
mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="800">
<UserControl.Resources>
<Style TargetType="{x:Type dxg:GridColumn}">
<Setter Property="Width" Value="50"/>
<Setter Property="HorizontalHeaderContentAlignment" Value="Center"/>
</Style>
<Style TargetType="{x:Type dxg:HeaderItemsControl}">
<Setter Property="FontWeight" Value="DemiBold"/>
</Style>
</UserControl.Resources>
<!--<dxmvvm:Interaction.Behaviors>
<dxmvvm:EventToCommand EventName="" Command="{Binding OnLoadedCommand}"/>
</dxmvvm:Interaction.Behaviors>-->
<dxg:GridControl ItemsSource="{Binding ItemsTable}"
AutoGenerateColumns="AddNew"
EnableSmartColumnsGeneration="True">
<dxmvvm:Interaction.Behaviors >
<behaviors:DynamicConditionBehavior x:Name="ConditionBehavior" />
</dxmvvm:Interaction.Behaviors>
<dxg:GridControl.View>
<dxg:TableView ShowGroupPanel="False"
AllowPerPixelScrolling="True"/>
</dxg:GridControl.View>
</dxg:GridControl>
</UserControl>
For a SOAP 1.2 Webservice, I normally use
curl --header "content-type: application/soap+xml" --data @filetopost.xml http://domain/path
The traditional for loop in Objective-C is inherited from standard C and takes the following form:
for (/* Instantiate local variables*/ ; /* Condition to keep looping. */ ; /* End of loop expressions */)
{
// Do something.
}
For example, to print the numbers from 1 to 10, you could use the for loop:
for (int i = 1; i <= 10; i++)
{
NSLog(@"%d", i);
}
On the other hand, the for in loop was introduced in Objective-C 2.0, and is used to loop through objects in a collection, such as an NSArray instance. For example, to loop through a collection of NSString objects in an NSArray and print them all out, you could use the following format.
for (NSString* currentString in myArrayOfStrings)
{
NSLog(@"%@", currentString);
}
This is logically equivilant to the following traditional for loop:
for (int i = 0; i < [myArrayOfStrings count]; i++)
{
NSLog(@"%@", [myArrayOfStrings objectAtIndex:i]);
}
The advantage of using the for in loop is firstly that it's a lot cleaner code to look at. Secondly, the Objective-C compiler can optimize the for in loop so as the code runs faster than doing the same thing with a traditional for loop.
Hope this helps.
In my case the following was necessary:
sudo chgrp vboxsf /media/sf_sharedFolder
I am not aware of any primitive sorting facilities within the Java core API.
From my experimentations with the D programming language (a sort of C on steroids), I've found that the merge sort algorithm is arguably the fastest general-purpose sorting algorithm around (it's what the D language itself uses to implement its sort function).
Follow the below steps in Eclipse.
Check here for more information : How to use web camera in android emulator to capture a live image?
In a Object Relational Mapping context, every object needs to have a unique identifier. You use the @Id
annotation to specify the primary key of an entity.
The @GeneratedValue
annotation is used to specify how the primary key should be generated. In your example you are using an Identity
strategy which
Indicates that the persistence provider must assign primary keys for the entity using a database identity column.
There are other strategies, you can see more here.
here is my implementation
public static byte[] intToByteArray(int a) {
return BigInteger.valueOf(a).toByteArray();
}
public static int byteArrayToInt(byte[] b) {
return new BigInteger(b).intValue();
}
Robby Pond
's answer can be generalized to use JAVA_HOME
environment variable and to also compensate for any blanks that might occur in the path (like Program Files
):
"%JAVA_HOME%\bin\keytool" -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | openssl sha1 -binary | openssl base64
try this
SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
String string = dateFormat.format(new Date());
System.out.println(string);
you can create any format see this
Try to add title
and alt
properties to your image.... Gmail and some others blocks images without some attributes.. and it is also a logic to include your email to be read as spam.
You can use the test construct, [[ ]]
, along with the regular expression match operator, =~
, to check if a string matches a regex pattern.
For your specific case, you can write:
[[ $date =~ ^[0-9]{8}$ ]] && echo "yes"
Or more a accurate test:
[[ $date =~ ^[0-9]{4}(0[1-9]|1[0-2])(0[1-9]|[1-2][0-9]|3[0-1])$ ]] && echo "yes"
# |^^^^^^^^ ^^^^^^ ^^^^^^ ^^^^^^ ^^^^^^^^^^ ^^^^^^ |
# | | ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ |
# | | | | |
# | | \ | |
# | --year-- --month-- --day-- |
# | either 01...09 either 01..09 end of line
# start of line or 10,11,12 or 10..29
# or 30, 31
That is, you can define a regex in Bash matching the format you want. This way you can do:
[[ $date =~ ^regex$ ]] && echo "matched" || echo "did not match"
where commands after &&
are executed if the test is successful, and commands after ||
are executed if the test is unsuccessful.
Note this is based on the solution by Aleks-Daniel Jakimenko in User input date format verification in bash.
In other shells you can use grep. If your shell is POSIX compliant, do
(echo "$date" | grep -Eq ^regex$) && echo "matched" || echo "did not match"
In fish, which is not POSIX-compliant, you can do
echo "$date" | grep -Eq "^regex\$"; and echo "matched"; or echo "did not match"
Took me a little bit on this one, but thanks to @Alex's post, he filled in the gap I was missing. However, I came across an issue if a value within the recursive dict
happens to be a list
, so I thought I'd share, and extend his answer.
import collections
def update(orig_dict, new_dict):
for key, val in new_dict.iteritems():
if isinstance(val, collections.Mapping):
tmp = update(orig_dict.get(key, { }), val)
orig_dict[key] = tmp
elif isinstance(val, list):
orig_dict[key] = (orig_dict.get(key, []) + val)
else:
orig_dict[key] = new_dict[key]
return orig_dict
The problem with String concatenation is that it leads to copying of the String object with all the associated cost. StringBuilder is not threadsafe and is therefore faster than StringBuffer, which used to be the preferred choice before Java 5. As a rule of thumb, you should not do String concatenation in a loop, which will be called often. I guess doing a few concatenations here and there will not hurt you as long as you are not talking about hundreds and this of course depends on your performance requirements. If you are doing real time stuff, you should be very careful.
iframe
CSSBy using part of SimpleSam5's answer, I achieved this with a few of Tawk's chat iframes (their customization interface is fine but I needed further customizations).
In this particular iframe that shows up on mobile devices, I needed to hide the default icon and place one of my background images. I did the following:
Tawk_API.onLoad = function() {
// without a specific API, you may try a similar load function
// perhaps with a setTimeout to ensure the iframe's content is fully loaded
$('#mtawkchat-minified-iframe-element').
contents().find("head").append(
$("<style type='text/css'>"+
"#tawkchat-status-text-container {"+
"background: url(https://example.net/img/my_mobile_bg.png) no-repeat center center blue;"+
"background-size: 100%;"+
"} "+
"#tawkchat-status-icon {display:none} </style>")
);
};
I do not own any Tawk's domain and this worked for me, thus you may do this even if it's not from the same parent domain (despite Jeremy Becker's comment on Sam's answer).
Redis use goto to simulate try/catch, IMHO it is very clean and elegant:
/* Save the DB on disk. Return REDIS_ERR on error, REDIS_OK on success. */
int rdbSave(char *filename) {
char tmpfile[256];
FILE *fp;
rio rdb;
int error = 0;
snprintf(tmpfile,256,"temp-%d.rdb", (int) getpid());
fp = fopen(tmpfile,"w");
if (!fp) {
redisLog(REDIS_WARNING, "Failed opening .rdb for saving: %s",
strerror(errno));
return REDIS_ERR;
}
rioInitWithFile(&rdb,fp);
if (rdbSaveRio(&rdb,&error) == REDIS_ERR) {
errno = error;
goto werr;
}
/* Make sure data will not remain on the OS's output buffers */
if (fflush(fp) == EOF) goto werr;
if (fsync(fileno(fp)) == -1) goto werr;
if (fclose(fp) == EOF) goto werr;
/* Use RENAME to make sure the DB file is changed atomically only
* if the generate DB file is ok. */
if (rename(tmpfile,filename) == -1) {
redisLog(REDIS_WARNING,"Error moving temp DB file on the final destination: %s", strerror(errno));
unlink(tmpfile);
return REDIS_ERR;
}
redisLog(REDIS_NOTICE,"DB saved on disk");
server.dirty = 0;
server.lastsave = time(NULL);
server.lastbgsave_status = REDIS_OK;
return REDIS_OK;
werr:
fclose(fp);
unlink(tmpfile);
redisLog(REDIS_WARNING,"Write error saving DB on disk: %s", strerror(errno));
return REDIS_ERR;
}
If you want to use numpy only:
x = [-1, 2, 1, 3, 3]
vals,counts = np.unique(x, return_counts=True)
gives
(array([-1, 1, 2, 3]), array([1, 1, 1, 2]))
And extract it:
index = np.argmax(counts)
return vals[index]
If you have a self-signed certificate generated by makecert.exe
on a Windows machine, you will get two files: cert.pvk
and cert.cer
. These can be converted to a pfx using pvk2pfx
pvk2pfx
is found in the same location as makecert
(e.g. C:\Program Files (x86)\Windows Kits\10\bin\x86
or similar)
pvk2pfx -pvk cert.pvk -spc cert.cer -pfx cert.pfx
For those who mentioned Stringify()
and toString()
as solution, I will say that worked for me but we have to understand the problem and why did it occur. In my code it was simple issue. I had 2 buttons which call same function but one button was not passing the argument to that function properly.
As of Select2 4.x, it always returns an array, even for non-multi select lists.
var data = $('your-original-element').select2('data')
alert(data[0].text);
alert(data[0].id);
For Select2 3.x and lower
Single select:
var data = $('your-original-element').select2('data');
if(data) {
alert(data.text);
}
Note that when there is no selection, the variable 'data' will be null.
Multi select:
var data = $('your-original-element').select2('data')
alert(data[0].text);
alert(data[0].id);
alert(data[1].text);
alert(data[1].id);
From the 3.x docs:
data Gets or sets the selection. Analogous to val method, but works with objects instead of ids.
data method invoked on a single-select with an unset value will return null, while a data method invoked on an empty multi-select will return [].
If you know your current password, you don't have to stop mysql server. Open the ubuntu terminal. Login to mysql using:
mysql - username -p
Then type your password. This will take you into the mysql console. Inside the console, type:
> ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password';
Then flush privileges using:
> flush privileges;
Then you are all done.
I am currently working on an open-source disassembler / decompiler called Assembly Analyzer. It generates source code for methods, displays assembly metadata and resources, and allows you to walk through dependencies.
The project is hosted on CodePlex => http://asmanalyzer.codeplex.com/
The STAThreadAttribute
is essentially a requirement for the Windows message pump to communicate with COM components. Although core Windows Forms does not use COM, many components of the OS such as system dialogs do use this technology.
MSDN explains the reason in slightly more detail:
STAThreadAttribute indicates that the COM threading model for the application is single-threaded apartment. This attribute must be present on the entry point of any application that uses Windows Forms; if it is omitted, the Windows components might not work correctly. If the attribute is not present, the application uses the multithreaded apartment model, which is not supported for Windows Forms.
This blog post (Why is STAThread required?) also explains the requirement quite well. If you want a more in-depth view as to how the threading model works at the CLR level, see this MSDN Magazine article from June 2004 (Archived, Apr. 2009).
div[disabled]
{
pointer-events: none;
opacity: 0.7;
}
The above code makes the contents of the div disabled. You can make div disabled by adding disabled attribute.
<div disabled>
/* Contents */
</div>
csvreader.next() Return the next row of the reader’s iterable object as a list, parsed according to the current dialect.
Hitting ctrl + c once(wait for traceback), then hitting ctrl+c again did the trick for me :)
Keep in mind that the Rewrite engine only kicks in once the HTTP request has been received - which means you would still need a certificate, in order for the client to set up the connection to send the request over!
However if the backup machine will appear to have the same hostname (as far as the client is concerned), then there should be no reason you can't use the same certificate as the main production machine.
On the i/o 2019 the following solution was presented:
/**
* Blurs the given Bitmap image
* @param bitmap Image to blur
* @param applicationContext Application context
* @return Blurred bitmap image
*/
@WorkerThread
fun blurBitmap(bitmap: Bitmap, applicationContext: Context): Bitmap {
lateinit var rsContext: RenderScript
try {
// Create the output bitmap
val output = Bitmap.createBitmap(
bitmap.width, bitmap.height, bitmap.config)
// Blur the image
rsContext = RenderScript.create(applicationContext, RenderScript.ContextType.DEBUG)
val inAlloc = Allocation.createFromBitmap(rsContext, bitmap)
val outAlloc = Allocation.createTyped(rsContext, inAlloc.type)
val theIntrinsic = ScriptIntrinsicBlur.create(rsContext, Element.U8_4(rsContext))
theIntrinsic.apply {
setRadius(10f)
theIntrinsic.setInput(inAlloc)
theIntrinsic.forEach(outAlloc)
}
outAlloc.copyTo(output)
return output
} finally {
rsContext.finish()
}
}
I found out that my back-up project worked well if I precompile without bundle update
. Maybe something went wrong with gem updated but I don't know which gem has an error.
From an SEO perspective, hyphens are preferred over underscores. Convert to lowercase, remove all apostrophes, then replace all non-alphanumeric strings of characters with a single hyphen. Trim excess hyphens off the start and finish.
This is one more place that anaconda had an entry that was breaking my python install after removing Anaconda. Hoping this helps someone else.
If you are using yarn, I found this entry in my .yarn.rc file in ~/"username"
python "/Users/someone/anaconda3/bin/python3"
removing this line fixed one last place needed for complete removal. I am not sure how that entry was added but it helped
for those who still face the same problem which i faced before when i have a ViewPager
with 7 fragments. the default for these fragments to load the English content from API
service but the problem here that i want to change the language from settings activity and after finish
settings activity i want ViewPager
in main activity to refresh the fragments to match the language selection from the user and load the Arabic content if user chooses Arabic here what i did to work from the first time
1- You must use FragmentStatePagerAdapter as mentioned above.
2- on mainActivity i override the onResume and did the following
if (!(mPagerAdapter == null)) {
mPagerAdapter.notifyDataSetChanged();
}
3-i overrided the getItemPosition()
in mPagerAdapter and make it return POSITION_NONE
.
@Override
public int getItemPosition(Object object) {
return POSITION_NONE;
}
works like charm
Restart your server , means stop ng serve and start again like ( ng serve ), your problem will be solved.
when make any changes in your package.json then you need to restart your ng server
titleForHeaderInSection is a delegate method of UITableView so to apply header text of section write as follows,
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
return @"Hello World";
}
For each element type, you can use specific attribute to set value. E.g.:
<div id="theValue1"></div>
window.document.getElementById("theValue1").innerText = "value div";
<input id="theValue2"></input>
window.document.getElementById("theValue2").value = "value input";
In the simplest case, with Swift 3, you can use Array
's init(_:)
initializer to get an Array
from a Set
. init(_:)
has the following declaration:
init<S>(_ s: S) where S : Sequence, Element == S.Iterator.Element
Creates an array containing the elements of a sequence.
Usage:
let stringSet = Set(arrayLiteral: "car", "boat", "car", "bike", "toy")
let stringArray = Array(stringSet)
print(stringArray)
// may print ["toy", "car", "bike", "boat"]
However, if you also want to perform some operations on each element of your Set
while transforming it into an Array
, you can use map
, flatMap
, sort
, filter
and other functional methods provided by Collection
protocol:
let stringSet = Set(["car", "boat", "bike", "toy"])
let stringArray = stringSet.sorted()
print(stringArray)
// will print ["bike", "boat", "car", "toy"]
let stringSet = Set(arrayLiteral: "car", "boat", "car", "bike", "toy")
let stringArray = stringSet.filter { $0.characters.first != "b" }
print(stringArray)
// may print ["car", "toy"]
let intSet = Set([1, 3, 5, 2])
let stringArray = intSet.flatMap { String($0) }
print(stringArray)
// may print ["5", "2", "3", "1"]
let intSet = Set([1, 3, 5, 2])
// alternative to `let intArray = Array(intSet)`
let intArray = intSet.map { $0 }
print(intArray)
// may print [5, 2, 3, 1]
SELECT
logcount, logUserID, maxlogtm,
DATEDIFF(day, maxlogtm, GETDATE()) AS daysdiff
FROM statslogsummary
WHERE ( DATEDIFF(day, maxlogtm, GETDATE() > 120)
Normally you can't refer to field aliases in the WHERE
clause. (Think of it as the entire SELECT
including aliases, is applied after the WHERE
clause.)
But, as mentioned in other answers, you can force SQL to treat SELECT
to be handled before the WHERE
clause. This is usually done with parenthesis to force logical order of operation or with a Common Table Expression (CTE):
Parenthesis/Subselect:
SELECT
*
FROM
(
SELECT
logcount, logUserID, maxlogtm,
DATEDIFF(day, maxlogtm, GETDATE()) AS daysdiff
FROM statslogsummary
) as innerTable
WHERE daysdiff > 120
Or see Adam's answer for a CTE version of the same.
Even though you are using ASMM, you can set a minimum size for the large pool (MMAN will not shrink it below that value). You can also try pinning some objects and increasing SGA_TARGET.
Here is the correct implementation using numpy (np.log()
is the natural logarithm)
import numpy as np
p = 100
r = 0.06 / 12
FV = 4000
n = np.log(1 + FV * r/ p) / np.log(1 + r)
print ("Number of periods = " + str(n))
Output:
Number of periods = 36.55539635919235
You should always end threads by checking a flag in the run()
loop (if any).
Your thread should look like this:
public class IndexProcessor implements Runnable {
private static final Logger LOGGER = LoggerFactory.getLogger(IndexProcessor.class);
private volatile boolean execute;
@Override
public void run() {
this.execute = true;
while (this.execute) {
try {
LOGGER.debug("Sleeping...");
Thread.sleep((long) 15000);
LOGGER.debug("Processing");
} catch (InterruptedException e) {
LOGGER.error("Exception", e);
this.execute = false;
}
}
}
public void stopExecuting() {
this.execute = false;
}
}
Then you can end the thread by calling thread.stopExecuting()
. That way the thread is ended clean, but this takes up to 15 seconds (due to your sleep).
You can still call thread.interrupt() if it's really urgent - but the prefered way should always be checking the flag.
To avoid waiting for 15 seconds, you can split up the sleep like this:
...
try {
LOGGER.debug("Sleeping...");
for (int i = 0; (i < 150) && this.execute; i++) {
Thread.sleep((long) 100);
}
LOGGER.debug("Processing");
} catch (InterruptedException e) {
...
Pretty much the same as Hank Gay's answer:
sorted([(value,key) for (key,value) in mydict.items()])
Or optimized slightly as suggested by John Fouhy:
sorted((value,key) for (key,value) in mydict.items())
javax.servlet.Filter
.doFilter()
method, cast the incoming ServletRequest
to HttpServletRequest
.HttpServletRequest#getRequestURI()
to grab the path.java.lang.String
methods like substring()
, split()
, concat()
and so on to extract the part of interest and compose the new path.ServletRequest#getRequestDispatcher()
and then RequestDispatcher#forward()
to forward the request/response to the new URL (server-side redirect, not reflected in browser address bar), or cast the incoming ServletResponse
to HttpServletResponse
and then HttpServletResponse#sendRedirect()
to redirect the response to the new URL (client side redirect, reflected in browser address bar).web.xml
on an url-pattern
of /*
or /Check_License/*
, depending on the context path, or if you're on Servlet 3.0 already, use the @WebFilter
annotation for that instead.Don't forget to add a check in the code if the URL needs to be changed and if not, then just call FilterChain#doFilter()
, else it will call itself in an infinite loop.
Alternatively you can also just use an existing 3rd party API to do all the work for you, such as Tuckey's UrlRewriteFilter which can be configured the way as you would do with Apache's mod_rewrite
.
Use filter-branch:
git filter-branch --force --index-filter 'git rm --cached --ignore-unmatch *file_path_relative_to_git_repo*' --prune-empty --tag-name-filter cat -- --all
git push origin *branch_name* -f
With modern pandas you can just do:
df['new'] = 0
You can use lodash:
@Component({
selector: 'board',
template: `
<div *ngFor="let i of range">
{{i}}
</div>
`,
styleUrls: ['./board.component.css']
})
export class AppComponent implements OnInit {
range = _.range(8);
}
I didn't test code but it should work.
I simply used this:
<div class="col-md-4 col-sm-4 col-xs-4">
<button type="button" class="btn btn-primary btn-block">Sign In</button>
</div>
Try using getTime
(mdn doc) :
var diff = Math.abs(date1.getTime() - date2.getTime()) / 3600000;
if (diff < 18) { /* do something */ }
Using Math.abs()
we don't know which date is the smallest. This code is probably more relevant :
var diff = (date1 - date2) / 3600000;
if (diff < 18) { array.push(date1); }
You can never get 100% isolation. Because a pod may have some shared dependencies and if you attempt to update your single pod, then it would update the dependencies of other pods as well. If that is ok then:
tl;dr use:
pod update podName
Why? Read below.
pod update
will NOT respect the podfile.lock
. It will override it — pertaining to that single podpod install
will respect the podfile.lock
, but will try installing every pod mentioned in the podfile based on the versions its locked to (in the Podfile.lock).This diagram helps better understand the differences:
The major problem comes from the ~>
aka optimistic operator.
Podfile
is not enoughSome might think that specifying exact versions of their pods in their Podfile
, like pod 'A', '1.0.0'
, is enough to guarantee that every user will have the same version as other people on the team.
Then they might even use pod update
, even when just adding a new pod, thinking it would never risk updating other pods because they are fixed to a specific version in the Podfile
.
But in fact, that is not enough to guarantee that user1 and user2 in our above scenario will always get the exact same version of all their pods.
One typical example is if the pod A
has a dependency on pod A2
— declared in A.podspec
as dependency 'A2', '~> 3.0'
. In such case, using pod 'A', '1.0.0'
in your Podfile will indeed force user1 and user2 to both always use version 1.0.0 of the pod A, but:
A2
in version 3.4
(because that was A2
's latest version at that time)pod install
when joining the project later, they might get pod A2
in version 3.5
(because the maintainer of A2
might have released a new version in the meantime).
That's why the only way to ensure every team member work with the same versions of all the pod on each's the computer is to use the Podfile.lock
and properly use pod install
vs. pod update
.The above excerpt was all derived from pod install vs. pod update
I also highly recommend watching what does a podfile.lock
do
You can use iReport editor to define the layout, and publish the report in jasper reports server. After publish you can invoke the rest api to get the results.
Here is the test of the functionality:
from django.test import TestCase
from x_reports_jasper.models import JasperServerClient
"""
to try integraction with jasper server through rest
"""
class TestJasperServerClient(TestCase):
# define required objects for tests
def setUp(self):
# load the connection to remote server
try:
self.j_url = "http://127.0.0.1:8080/jasperserver"
self.j_user = "jasperadmin"
self.j_pass = "jasperadmin"
self.client = JasperServerClient.create_client(self.j_url,self.j_user,self.j_pass)
except Exception, e:
# if errors could not execute test given prerrequisites
raise
# test exception when server data is invalid
def test_login_to_invalid_address_should_raise(self):
self.assertRaises(Exception,JasperServerClient.create_client, "http://127.0.0.1:9090/jasperserver",self.j_user,self.j_pass)
# test execute existent report in server
def test_get_report(self):
r_resource_path = "/reports/<PathToPublishedReport>"
r_format = "pdf"
r_params = {'PARAM_TO_REPORT':"1",}
#resource_meta = client.load_resource_metadata( rep_resource_path )
[uuid,out_mime,out_data] = self.client.generate_report(r_resource_path,r_format,r_params)
self.assertIsNotNone(uuid)
And here is an example of the invocation implementation:
from django.db import models
import requests
import sys
from xml.etree import ElementTree
import logging
# module logger definition
logger = logging.getLogger(__name__)
# Create your models here.
class JasperServerClient(models.Manager):
def __handle_exception(self, exception_root, exception_id, exec_info ):
type, value, traceback = exec_info
raise JasperServerClientError(exception_root, exception_id), None, traceback
# 01: REPORT-METADATA
# get resource description to generate the report
def __handle_report_metadata(self, rep_resourcepath):
l_path_base_resource = "/rest/resource"
l_path = self.j_url + l_path_base_resource
logger.info( "metadata (begin) [path=%s%s]" %( l_path ,rep_resourcepath) )
resource_response = None
try:
resource_response = requests.get( "%s%s" %( l_path ,rep_resourcepath) , cookies = self.login_response.cookies)
except Exception, e:
self.__handle_exception(e, "REPORT_METADATA:CALL_ERROR", sys.exc_info())
resource_response_dom = None
try:
# parse to dom and set parameters
logger.debug( " - response [data=%s]" %( resource_response.text) )
resource_response_dom = ElementTree.fromstring(resource_response.text)
datum = ""
for node in resource_response_dom.getiterator():
datum = "%s<br />%s - %s" % (datum, node.tag, node.text)
logger.debug( " - response [xml=%s]" %( datum ) )
#
self.resource_response_payload= resource_response.text
logger.info( "metadata (end) ")
except Exception, e:
logger.error( "metadata (error) [%s]" % (e))
self.__handle_exception(e, "REPORT_METADATA:PARSE_ERROR", sys.exc_info())
# 02: REPORT-PARAMS
def __add_report_params(self, metadata_text, params ):
if(type(params) != dict):
raise TypeError("Invalid parameters to report")
else:
logger.info( "add-params (begin) []" )
#copy parameters
l_params = {}
for k,v in params.items():
l_params[k]=v
# get the payload metadata
metadata_dom = ElementTree.fromstring(metadata_text)
# add attributes to payload metadata
root = metadata_dom #('report'):
for k,v in l_params.items():
param_dom_element = ElementTree.Element('parameter')
param_dom_element.attrib["name"] = k
param_dom_element.text = v
root.append(param_dom_element)
#
metadata_modified_text =ElementTree.tostring(metadata_dom, encoding='utf8', method='xml')
logger.info( "add-params (end) [payload-xml=%s]" %( metadata_modified_text ) )
return metadata_modified_text
# 03: REPORT-REQUEST-CALL
# call to generate the report
def __handle_report_request(self, rep_resourcepath, rep_format, rep_params):
# add parameters
self.resource_response_payload = self.__add_report_params(self.resource_response_payload,rep_params)
# send report request
l_path_base_genreport = "/rest/report"
l_path = self.j_url + l_path_base_genreport
logger.info( "report-request (begin) [path=%s%s]" %( l_path ,rep_resourcepath) )
genreport_response = None
try:
genreport_response = requests.put( "%s%s?RUN_OUTPUT_FORMAT=%s" %(l_path,rep_resourcepath,rep_format),data=self.resource_response_payload, cookies = self.login_response.cookies )
logger.info( " - send-operation-result [value=%s]" %( genreport_response.text) )
except Exception,e:
self.__handle_exception(e, "REPORT_REQUEST:CALL_ERROR", sys.exc_info())
# parse the uuid of the requested report
genreport_response_dom = None
try:
genreport_response_dom = ElementTree.fromstring(genreport_response.text)
for node in genreport_response_dom.findall("uuid"):
datum = "%s" % (node.text)
genreport_uuid = datum
for node in genreport_response_dom.findall("file/[@type]"):
datum = "%s" % (node.text)
genreport_mime = datum
logger.info( "report-request (end) [uuid=%s,mime=%s]" %( genreport_uuid, genreport_mime) )
return [genreport_uuid,genreport_mime]
except Exception,e:
self.__handle_exception(e, "REPORT_REQUEST:PARSE_ERROR", sys.exc_info())
# 04: REPORT-RETRIEVE RESULTS
def __handle_report_reply(self, genreport_uuid ):
l_path_base_getresult = "/rest/report"
l_path = self.j_url + l_path_base_getresult
logger.info( "report-reply (begin) [uuid=%s,path=%s]" %( genreport_uuid,l_path) )
getresult_response = requests.get( "%s%s/%s?file=report" %(self.j_url,l_path_base_getresult,genreport_uuid),data=self.resource_response_payload, cookies = self.login_response.cookies )
l_result_header_mime =getresult_response.headers['Content-Type']
logger.info( "report-reply (end) [uuid=%s,mime=%s]" %( genreport_uuid, l_result_header_mime) )
return [l_result_header_mime, getresult_response.content]
# public methods ---------------------------------------
# tries the authentication with jasperserver throug rest
def login(self, j_url, j_user,j_pass):
self.j_url= j_url
l_path_base_auth = "/rest/login"
l_path = self.j_url + l_path_base_auth
logger.info( "login (begin) [path=%s]" %( l_path) )
try:
self.login_response = requests.post(l_path , params = {
'j_username':j_user,
'j_password':j_pass
})
if( requests.codes.ok != self.login_response.status_code ):
self.login_response.raise_for_status()
logger.info( "login (end)" )
return True
# see http://blog.ianbicking.org/2007/09/12/re-raising-exceptions/
except Exception, e:
logger.error("login (error) [e=%s]" % e )
self.__handle_exception(e, "LOGIN:CALL_ERROR",sys.exc_info())
#raise
def generate_report(self, rep_resourcepath,rep_format,rep_params):
self.__handle_report_metadata(rep_resourcepath)
[uuid,mime] = self.__handle_report_request(rep_resourcepath, rep_format,rep_params)
# TODO: how to handle async?
[out_mime,out_data] = self.__handle_report_reply(uuid)
return [uuid,out_mime,out_data]
@staticmethod
def create_client(j_url, j_user, j_pass):
client = JasperServerClient()
login_res = client.login( j_url, j_user, j_pass )
return client
class JasperServerClientError(Exception):
def __init__(self,exception_root,reason_id,reason_message=None):
super(JasperServerClientError, self).__init__(str(reason_message))
self.code = reason_id
self.description = str(exception_root) + " " + str(reason_message)
def __str__(self):
return self.code + " " + self.description
In jQuery, a new element can be created by passing a HTML string to the constructor, as shown below:
var img = $('<img id="dynamic">'); //Equivalent: $(document.createElement('img'))
img.attr('src', responseObject.imgurl);
img.appendTo('#imagediv');
Three things:
You have a trailing slash on your repo name:
$ git remote rm origin
$ git remote add origin https://github.com/pete/first_app.git
You need to create the first_app
repo. I looked at "pete" on GitHub, and I do not see the repository. You must first create the remote repository before you may push.
When you use the -m
option putty does not allocate a tty, it runs the command and quits. If you want to run an interactive script (such as a sql client), you need to tell it to allocate a tty with -t
, see 3.8.3.12 -t and -T: control pseudo-terminal allocation
. You'll avoid keeping a script on the server, as well as having to invoke it once you're connected.
Here's what I'm using to connect to mysql from a batch file:
#mysql.bat
start putty -t -load "sessionname" -l username -pw password -m c:\mysql.sh
#mysql.sh
mysql -h localhost -u username --password="foo" mydb
https://superuser.com/questions/587629/putty-run-a-remote-command-after-login-keep-the-shell-running
The encoding for the page is not set correctly. Either add a header
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
or use set the appropriate http header.
Content-Type:text/html; charset=UTF-8
Firefox also allows you to change the encoding in View -> Character encoding.
If that's ok, I think javascript should handle UTF8 just fine.
I will just leave it here. Helped me after I tried everything.
$(document.body).bind("dragover", function(e) {
e.preventDefault();
return false;
});
$(document.body).bind("drop", function(e){
e.preventDefault();
return false;
});
Using solve
with a single parameter is a request to invert a matrix. The error message is telling you that your matrix is singular and cannot be inverted.
You first have to tell Gnuplot to use a style that uses points, e.g. with points
or with linespoints
. Try for example:
plot sin(x) with points
Output:
Now try:
plot sin(x) with points pointtype 5
Output:
You may also want to look at the output from the test
command which shows you the capabilities of the current terminal. Here are the capabilities for my pngairo terminal:
In SSMS right click on a desired table > script as > create to > new query
-change the name of the table (ex. table2)
-change the PK key for the table (ex. PK_table2)
USE [NAMEDB]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[table_2](
[id] [int] NOT NULL,
[name] [varchar](50) NULL,
CONSTRAINT [PK_table_2] PRIMARY KEY CLUSTERED
(
[reference] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE =
OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON,
ALLOW_PAGE_LOCKS = ON,
OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO