Old question; but I always try to use fastest code!
I had a huge list with 69 millions of uint64. np.array() was fastest for me.
df['hashes'] = hashes
Time spent: 17.034842014312744
df['hashes'] = pd.Series(hashes).values
Time spent: 17.141014337539673
df['key'] = np.array(hashes)
Time spent: 10.724546194076538
I don't think desc
takes an na.rm
argument... I'm actually surprised it doesn't throw an error when you give it one. If you just want to remove NA
s, use na.omit
(base) or tidyr::drop_na
:
outcome.df %>%
na.omit() %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
library(tidyr)
outcome.df %>%
drop_na() %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
If you only want to remove NA
s from the HeartAttackDeath column, filter with is.na
, or use tidyr::drop_na
:
outcome.df %>%
filter(!is.na(HeartAttackDeath)) %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
outcome.df %>%
drop_na(HeartAttackDeath) %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
As pointed out at the dupe, complete.cases
can also be used, but it's a bit trickier to put in a chain because it takes a data frame as an argument but returns an index vector. So you could use it like this:
outcome.df %>%
filter(complete.cases(.)) %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
Update your setuptools, too.
pip install setuptools --upgrade
If that fails too, you could try with additional --force
flag.
Think of it as enforcing Eager-Loading in a scenario where you sub-items would otherwise be lazy-loading.
The Query EF is sending to the database will yield a larger result at first, but on access no follow-up queries will be made when accessing the included items.
On the other hand, without it, EF would execute separte queries later, when you first access the sub-items.
If you want to sort the output by dict key you can use the collection package.
import collections
for k, v in collections.OrderedDict(sorted(d.items())).items():
print(k, v)
It works on python 3
you need to use os.system
module to execute shell command
import os
os.system('command')
if you want to save the output for later use, you need to use subprocess
module
import subprocess
child = subprocess.Popen('command',stdout=subprocess.PIPE,shell=True)
output = child.communicate()[0]
To access the index in this case you access the name
attribute:
In [182]:
df = pd.DataFrame([[1,2,3],[4,5,6]], columns=['a','b','c'])
def rowFunc(row):
return row['a'] + row['b'] * row['c']
def rowIndex(row):
return row.name
df['d'] = df.apply(rowFunc, axis=1)
df['rowIndex'] = df.apply(rowIndex, axis=1)
df
Out[182]:
a b c d rowIndex
0 1 2 3 7 0
1 4 5 6 34 1
Note that if this is really what you are trying to do that the following works and is much faster:
In [198]:
df['d'] = df['a'] + df['b'] * df['c']
df
Out[198]:
a b c d
0 1 2 3 7
1 4 5 6 34
In [199]:
%timeit df['a'] + df['b'] * df['c']
%timeit df.apply(rowIndex, axis=1)
10000 loops, best of 3: 163 µs per loop
1000 loops, best of 3: 286 µs per loop
EDIT
Looking at this question 3+ years later, you could just do:
In[15]:
df['d'],df['rowIndex'] = df['a'] + df['b'] * df['c'], df.index
df
Out[15]:
a b c d rowIndex
0 1 2 3 7 0
1 4 5 6 34 1
but assuming it isn't as trivial as this, whatever your rowFunc
is really doing, you should look to use the vectorised functions, and then use them against the df index:
In[16]:
df['newCol'] = df['a'] + df['b'] + df['c'] + df.index
df
Out[16]:
a b c d rowIndex newCol
0 1 2 3 7 0 6
1 4 5 6 34 1 16
Look into python wheels to solve your problem. The best part of python wheels is that they let you install C extensions with no compilers. I just installed numpy and scipy using pip in a clean python install and they both worked fine.
Use the @RequestParam to pass a parameter to the controller handler method.
In the jsp your form should have an input field with name = "id"
like the following:
<input type="text" name="id" />
<input type="submit" />
Then in your controller, your handler method should be like the following:
@RequestMapping("listNotes")
public String listNotes(@RequestParam("id") int id) {
Person person = personService.getCurrentlyAuthenticatedUser();
model.addAttribute("person", new Person());
model.addAttribute("listPersons", this.personService.listPersons());
model.addAttribute("listNotes", this.notesService.listNotesBySectionId(id, person));
return "note";
}
Please also refer to these answers and tutorial:
If you are using DrawerLayout with ActionBarDrawerToggle, then to show Back button instead of Menu button (and viceversa), you need to add this code in your Activity:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// ...
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, toolbar, R.string.application_name, R.string.application_name);
mDrawerLayout.addDrawerListener(mDrawerToggle);
mDrawerToggle.setHomeAsUpIndicator(R.drawable.ic_arrow_back_white_32dp);
mDrawerToggle.setToolbarNavigationClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
onBackPressed(); // Or you can perform some other action here when Back button is clicked.
}
});
mDrawerToggle.syncState();
// ...
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item))
return true;
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
// ...
}
return super.onOptionsItemSelected(item);
}
public void showBackInToolbar(boolean isBack) {
// Remove next line if you still want to be able to swipe to show drawer menu.
mDrawerLayout.setDrawerLockMode(isBack ? DrawerLayout.LOCK_MODE_LOCKED_CLOSED : DrawerLayout.LOCK_MODE_UNLOCKED);
mDrawerToggle.setDrawerIndicatorEnabled(!isBack);
mDrawerToggle.syncState();
}
So when you need to show Back button instead of Menu button, call showBackInToolbar(true), and if you need Menu button, call showBackInToolbar(false).
You can generate back arrow (ic_arrow_back_white_32dp) over here, search arrow_back in Clipart section (use default 32dp with 8dp padding). Just select the color you want.
Based on other answers and my tries, best experience would be first installing, pillow and scipy, then using the following starting code on your jupyter notebook:
%matplotlib inline
from matplotlib.pyplot import imshow
from scipy.misc import imread
imshow(imread('image.jpg', 1))
Yes the workaround shown in all answer is correct , that is we need to customize the linear layout manager to calculate the height of its child items dynamically at run time. But all answers not working as expected .Please the below answer for custom layout manger with all orientation support.
public class MyLinearLayoutManager extends android.support.v7.widget.LinearLayoutManager {
private static boolean canMakeInsetsDirty = true;
private static Field insetsDirtyField = null;
private static final int CHILD_WIDTH = 0;
private static final int CHILD_HEIGHT = 1;
private static final int DEFAULT_CHILD_SIZE = 100;
private final int[] childDimensions = new int[2];
private final RecyclerView view;
private int childSize = DEFAULT_CHILD_SIZE;
private boolean hasChildSize;
private int overScrollMode = ViewCompat.OVER_SCROLL_ALWAYS;
private final Rect tmpRect = new Rect();
@SuppressWarnings("UnusedDeclaration")
public MyLinearLayoutManager(Context context) {
super(context);
this.view = null;
}
@SuppressWarnings("UnusedDeclaration")
public MyLinearLayoutManager(Context context, int orientation, boolean reverseLayout) {
super(context, orientation, reverseLayout);
this.view = null;
}
@SuppressWarnings("UnusedDeclaration")
public MyLinearLayoutManager(RecyclerView view) {
super(view.getContext());
this.view = view;
this.overScrollMode = ViewCompat.getOverScrollMode(view);
}
@SuppressWarnings("UnusedDeclaration")
public MyLinearLayoutManager(RecyclerView view, int orientation, boolean reverseLayout) {
super(view.getContext(), orientation, reverseLayout);
this.view = view;
this.overScrollMode = ViewCompat.getOverScrollMode(view);
}
public void setOverScrollMode(int overScrollMode) {
if (overScrollMode < ViewCompat.OVER_SCROLL_ALWAYS || overScrollMode > ViewCompat.OVER_SCROLL_NEVER)
throw new IllegalArgumentException("Unknown overscroll mode: " + overScrollMode);
if (this.view == null) throw new IllegalStateException("view == null");
this.overScrollMode = overScrollMode;
ViewCompat.setOverScrollMode(view, overScrollMode);
}
public static int makeUnspecifiedSpec() {
return View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
}
@Override
public void onMeasure(RecyclerView.Recycler recycler, RecyclerView.State state, int widthSpec, int heightSpec) {
final int widthMode = View.MeasureSpec.getMode(widthSpec);
final int heightMode = View.MeasureSpec.getMode(heightSpec);
final int widthSize = View.MeasureSpec.getSize(widthSpec);
final int heightSize = View.MeasureSpec.getSize(heightSpec);
final boolean hasWidthSize = widthMode != View.MeasureSpec.UNSPECIFIED;
final boolean hasHeightSize = heightMode != View.MeasureSpec.UNSPECIFIED;
final boolean exactWidth = widthMode == View.MeasureSpec.EXACTLY;
final boolean exactHeight = heightMode == View.MeasureSpec.EXACTLY;
final int unspecified = makeUnspecifiedSpec();
if (exactWidth && exactHeight) {
// in case of exact calculations for both dimensions let's use default "onMeasure" implementation
super.onMeasure(recycler, state, widthSpec, heightSpec);
return;
}
final boolean vertical = getOrientation() == VERTICAL;
initChildDimensions(widthSize, heightSize, vertical);
int width = 0;
int height = 0;
// it's possible to get scrap views in recycler which are bound to old (invalid) adapter entities. This
// happens because their invalidation happens after "onMeasure" method. As a workaround let's clear the
// recycler now (it should not cause any performance issues while scrolling as "onMeasure" is never
// called whiles scrolling)
recycler.clear();
final int stateItemCount = state.getItemCount();
final int adapterItemCount = getItemCount();
// adapter always contains actual data while state might contain old data (f.e. data before the animation is
// done). As we want to measure the view with actual data we must use data from the adapter and not from the
// state
for (int i = 0; i < adapterItemCount; i++) {
if (vertical) {
if (!hasChildSize) {
if (i < stateItemCount) {
// we should not exceed state count, otherwise we'll get IndexOutOfBoundsException. For such items
// we will use previously calculated dimensions
measureChild(recycler, i, widthSize, unspecified, childDimensions);
} else {
logMeasureWarning(i);
}
}
height += childDimensions[CHILD_HEIGHT];
if (i == 0) {
width = childDimensions[CHILD_WIDTH];
}
if (hasHeightSize && height >= heightSize) {
break;
}
} else {
if (!hasChildSize) {
if (i < stateItemCount) {
// we should not exceed state count, otherwise we'll get IndexOutOfBoundsException. For such items
// we will use previously calculated dimensions
measureChild(recycler, i, unspecified, heightSize, childDimensions);
} else {
logMeasureWarning(i);
}
}
width += childDimensions[CHILD_WIDTH];
if (i == 0) {
height = childDimensions[CHILD_HEIGHT];
}
if (hasWidthSize && width >= widthSize) {
break;
}
}
}
if (exactWidth) {
width = widthSize;
} else {
width += getPaddingLeft() + getPaddingRight();
if (hasWidthSize) {
width = Math.min(width, widthSize);
}
}
if (exactHeight) {
height = heightSize;
} else {
height += getPaddingTop() + getPaddingBottom();
if (hasHeightSize) {
height = Math.min(height, heightSize);
}
}
setMeasuredDimension(width, height);
if (view != null && overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS) {
final boolean fit = (vertical && (!hasHeightSize || height < heightSize))
|| (!vertical && (!hasWidthSize || width < widthSize));
ViewCompat.setOverScrollMode(view, fit ? ViewCompat.OVER_SCROLL_NEVER : ViewCompat.OVER_SCROLL_ALWAYS);
}
}
private void logMeasureWarning(int child) {
if (BuildConfig.DEBUG) {
Log.w("MyLinearLayoutManager", "Can't measure child #" + child + ", previously used dimensions will be reused." +
"To remove this message either use #setChildSize() method or don't run RecyclerView animations");
}
}
private void initChildDimensions(int width, int height, boolean vertical) {
if (childDimensions[CHILD_WIDTH] != 0 || childDimensions[CHILD_HEIGHT] != 0) {
// already initialized, skipping
return;
}
if (vertical) {
childDimensions[CHILD_WIDTH] = width;
childDimensions[CHILD_HEIGHT] = childSize;
} else {
childDimensions[CHILD_WIDTH] = childSize;
childDimensions[CHILD_HEIGHT] = height;
}
}
@Override
public void setOrientation(int orientation) {
// might be called before the constructor of this class is called
//noinspection ConstantConditions
if (childDimensions != null) {
if (getOrientation() != orientation) {
childDimensions[CHILD_WIDTH] = 0;
childDimensions[CHILD_HEIGHT] = 0;
}
}
super.setOrientation(orientation);
}
public void clearChildSize() {
hasChildSize = false;
setChildSize(DEFAULT_CHILD_SIZE);
}
public void setChildSize(int childSize) {
hasChildSize = true;
if (this.childSize != childSize) {
this.childSize = childSize;
requestLayout();
}
}
private void measureChild(RecyclerView.Recycler recycler, int position, int widthSize, int heightSize, int[] dimensions) {
final View child;
try {
child = recycler.getViewForPosition(position);
} catch (IndexOutOfBoundsException e) {
if (BuildConfig.DEBUG) {
Log.w("MyLinearLayoutManager", "MyLinearLayoutManager doesn't work well with animations. Consider switching them off", e);
}
return;
}
final RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) child.getLayoutParams();
final int hPadding = getPaddingLeft() + getPaddingRight();
final int vPadding = getPaddingTop() + getPaddingBottom();
final int hMargin = p.leftMargin + p.rightMargin;
final int vMargin = p.topMargin + p.bottomMargin;
// we must make insets dirty in order calculateItemDecorationsForChild to work
makeInsetsDirty(p);
// this method should be called before any getXxxDecorationXxx() methods
calculateItemDecorationsForChild(child, tmpRect);
final int hDecoration = getRightDecorationWidth(child) + getLeftDecorationWidth(child);
final int vDecoration = getTopDecorationHeight(child) + getBottomDecorationHeight(child);
final int childWidthSpec = getChildMeasureSpec(widthSize, hPadding + hMargin + hDecoration, p.width, canScrollHorizontally());
final int childHeightSpec = getChildMeasureSpec(heightSize, vPadding + vMargin + vDecoration, p.height, canScrollVertically());
child.measure(childWidthSpec, childHeightSpec);
dimensions[CHILD_WIDTH] = getDecoratedMeasuredWidth(child) + p.leftMargin + p.rightMargin;
dimensions[CHILD_HEIGHT] = getDecoratedMeasuredHeight(child) + p.bottomMargin + p.topMargin;
// as view is recycled let's not keep old measured values
makeInsetsDirty(p);
recycler.recycleView(child);
}
private static void makeInsetsDirty(RecyclerView.LayoutParams p) {
if (!canMakeInsetsDirty) {
return;
}
try {
if (insetsDirtyField == null) {
insetsDirtyField = RecyclerView.LayoutParams.class.getDeclaredField("mInsetsDirty");
insetsDirtyField.setAccessible(true);
}
insetsDirtyField.set(p, true);
} catch (NoSuchFieldException e) {
onMakeInsertDirtyFailed();
} catch (IllegalAccessException e) {
onMakeInsertDirtyFailed();
}
}
private static void onMakeInsertDirtyFailed() {
canMakeInsetsDirty = false;
if (BuildConfig.DEBUG) {
Log.w("MyLinearLayoutManager", "Can't make LayoutParams insets dirty, decorations measurements might be incorrect");
}
}
}
If you can live with limited parallel capablilities, the following solution will work:
private static <T> Stream<T> nonEmptyStream(
Stream<T> stream, Supplier<RuntimeException> e) {
Spliterator<T> it=stream.spliterator();
return StreamSupport.stream(new Spliterator<T>() {
boolean seen;
public boolean tryAdvance(Consumer<? super T> action) {
boolean r=it.tryAdvance(action);
if(!seen && !r) throw e.get();
seen=true;
return r;
}
public Spliterator<T> trySplit() { return null; }
public long estimateSize() { return it.estimateSize(); }
public int characteristics() { return it.characteristics(); }
}, false);
}
Here is some example code using it:
List<String> l=Arrays.asList("hello", "world");
nonEmptyStream(l.stream(), ()->new RuntimeException("No strings available"))
.forEach(System.out::println);
nonEmptyStream(l.stream().filter(s->s.startsWith("x")),
()->new RuntimeException("No strings available"))
.forEach(System.out::println);
The problem with (efficient) parallel execution is that supporting splitting of the Spliterator
requires a thread-safe way to notice whether either of the fragments has seen any value in a thread-safe manner. Then the last of the fragments executing tryAdvance
has to realize that it is the last one (and it also couldn’t advance) to throw the appropriate exception. So I didn’t add support for splitting here.
Another way to remove the title from your Toolbar
is to null
it out like so:
Toolbar toolbar = (Toolbar) findViewById(R.id.my_awesome_toolbar);
toolbar.setTitle(null);
I found same problem, we can resolve in three steps:-
Step 1
sudo chown -R $(whoami) $(brew --prefix)/*
Step 2
brew doctor
Step 3
brew prune
If you still get any linking problem, lets say for mysql
, just write
brew link mysql
This will work.
The point of using CDN is that it is faster, first of all, because it is a distributed network, but secondly, because the static files are being cached by the browsers and chances are high that, for example, the CDN's jquery
library that your site uses had already been downloaded by the user's browser, and therefore the file had been cached, and therefore no unnecessary download is taking place. That being said, it is still a good idea to provide a fallback.
is that it provides bootstrap's javascript file as a module. As has been mentioned above, this makes it possible to require
it using browserify, which is the most likely use case and, as I understand it, the main reason for bootstrap being published on npm.
Imagine the following project structure:
project |-- node_modules |-- public | |-- css | |-- img | |-- js | |-- index.html |-- package.json
In your index.html
you can reference both css
and js
files like this:
<link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.min.css">
<script src="../node_modules/bootstrap/dist/js/bootstrap.min.js"></script>
Which is the simplest way, and correct for the .css
files. But it is much better to include the bootstrap.js
file like this somewhere in your public/js/*.js
files:
var bootstrap = require('bootstrap');
And you include this code only in those javascript
files where you actually need bootstrap.js
. Browserify takes care of including this file for you.
Now, the drawback is that you now have your front-end files as node_modules
dependencies, and the node_modules
folder is usually not checked in with git
. I think this is the most controversial part, with many opinions and solutions.
Almost two years have passed since I wrote this answer and an update is in place.
Now the generally accepted way is to use a bundler like webpack (or another bundler of choice) to bundle all your assets in a build step.
Firstly, it allows you to use commonjs syntax just like browserify, so to include bootstrap js code in your project you do the same:
const bootstrap = require('bootstrap');
As for the css
files, webpack has so called "loaders". They allow you write this in your js code:
require('bootstrap/dist/css/bootstrap.css');
and the css files will be "magically" included in your build.
They will be dynamically added as <style />
tags when your app runs, but you can configure webpack to export them as a separate css
file. You can read more about that in webpack's documentation.
In conclusion.
node_modules
nor the dynamically built files to git. You can add a build
script to npm which should be used to deploy files on server. Anyway, this can be done in different ways depending on your preferred build process.If you have more than one column to be converted you can do the following:
df[["col1", "col2", "col3"]] = df[["col1", "col2", "col3"]].apply(pd.to_datetime)
Update your SP and handle exception in it using declare handler with get diagnostics so that you will know if there is an exception. e.g.
CREATE DEFINER=`root`@`localhost` PROCEDURE `validar_egreso`(
IN codigo_producto VARCHAR(100),
IN cantidad INT,
OUT valido INT(11)
)
BEGIN
DECLARE EXIT HANDLER FOR SQLEXCEPTION
BEGIN
GET DIAGNOSTICS CONDITION 1
@p1 = RETURNED_SQLSTATE, @p2 = MESSAGE_TEXT;
SELECT @p1, @p2;
END
DECLARE resta INT(11);
SET resta = 0;
SELECT (s.stock - cantidad) INTO resta
FROM stock AS s
WHERE codigo_producto = s.codigo;
IF (resta > s.stock_minimo) THEN
SET valido = 1;
ELSE
SET valido = -1;
END IF;
SELECT valido;
END
if(isset($_POST['form1']))
{
try
{
$user=$_POST['username'];
$pass=$_POST['password'];
$email=$_POST['email'];
$roll=$_POST['roll'];
$class=$_POST['class'];
if(empty($user)) throw new Exception("Name can not empty");
if(empty($pass)) throw new Exception("Password can not empty");
if(empty($email)) throw new Exception("Email can not empty");
if(empty($roll)) throw new Exception("Roll can not empty");
if(empty($class)) throw new Exception("Class can not empty");
$statement=$db->prepare("show table status like 'tbl_std_info'");
$statement->execute();
$result=$statement->fetchAll();
foreach($result as $row)
$new_id=$row[10];
$up_file=$_FILES["image"]["name"];
$file_basename=substr($up_file, 0 , strripos($up_file, "."));
$file_ext=substr($up_file, strripos($up_file, "."));
$f1="$new_id".$file_ext;
if(($file_ext!=".png")&&($file_ext!=".jpg")&&($file_ext!=".jpeg")&&($file_ext!=".gif"))
{
throw new Exception("Only jpg, png, jpeg or gif Logo are allow to upload / Empty Logo Field");
}
move_uploaded_file($_FILES["image"]["tmp_name"],"../std_photo/".$f1);
$statement=$db->prepare("insert into tbl_std_info (username,image,password,email,roll,class) value (?,?,?,?,?,?)");
$statement->execute(array($user,$f1,$pass,$email,$roll,$class));
$success="Registration Successfully Completed";
echo $success;
}
catch(Exception $e)
{
$msg=$e->getMessage();
}
}
Gmail: OAuth
Client ID
and Secret ID
. Finally click OK to close the credentials pop up.Google API
. Click on Overview in the left pane.Google API
under Social APIs section.That’s all from the Google part.
Come back to your application, open App_start/Startup.Auth.cs
and uncomment the following snippet
app.UseGoogleAuthentication(new GoogleOAuth2AuthenticationOptions()
{
ClientId = "",
ClientSecret = ""
});
Update the ClientId
and ClientSecret
with the values from Google API
credentials which you have created already.
Gmail
id.Gmail
id into your application database.I tried the following and it works for me better
Code:
.unstyled-link{
color: inherit;
text-decoration: inherit;
&:link,
&:hover {
color: inherit;
text-decoration: inherit;
}
}
Here is complete Solution in Swift 4 implement this in didFinishLaunchingWithOptions
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
let isLogin = UserDefaults.standard.bool(forKey: "Islogin")
if isLogin{
self.NextViewController(storybordid: "OtherViewController")
}else{
self.NextViewController(storybordid: "LoginViewController")
}
}
write this Function any where inside Appdelegate.swift
func NextViewController(storybordid:String)
{
let storyBoard:UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let exampleVC = storyBoard.instantiateViewController(withIdentifier:storybordid )
// self.present(exampleVC, animated: true)
self.window = UIWindow(frame: UIScreen.main.bounds)
self.window?.rootViewController = exampleVC
self.window?.makeKeyAndVisible()
}
#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
#define MOD 1000000007
#define fo(i,k,n) for(int i=k;i<=n;++i)
#define endl '\n'
ll etf[1000001];
ll spf[1000001];
void sieve(){
ll i,j;
for(i=0;i<=1000000;i++) {etf[i]=i;spf[i]=i;}
for(i=2;i<=1000000;i++){
if(etf[i]==i){
for(j=i;j<=1000000;j+=i){
etf[j]/=i;
etf[j]*=(i-1);
if(spf[j]==j)spf[j]=i;
}
}
}
}
void primefacto(ll n,vector<pair<ll,ll>>& vec){
ll lastprime = 1,k=0;
while(n>1){
if(lastprime!=spf[n])vec.push_back(make_pair(spf[n],0));
vec[vec.size()-1].second++;
lastprime=spf[n];
n/=spf[n];
}
}
void divisors(vector<pair<ll,ll>>& vec,ll idx,vector<ll>& divs,ll num){
if(idx==vec.size()){
divs.push_back(num);
return;
}
for(ll i=0;i<=vec[idx].second;i++){
divisors(vec,idx+1,divs,num*pow(vec[idx].first,i));
}
}
void solve(){
ll n;
cin>>n;
vector<pair<ll,ll>> vec;
primefacto(n,vec);
vector<ll> divs;
divisors(vec,0,divs,1);
for(auto it=divs.begin();it!=divs.end();it++){
cout<<*it<<endl;
}
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);cout.tie(0);
sieve();
ll t;cin>>t;
while(t--) solve();
return 0;
}
(this answer is not useful, but leaving it here since some of the comments may be)
docker images
will show the 'virtual size', i.e. how much in total including all the lower layers. So some double-counting if you have containers that share the same base image.
They are not doing the same job: $emit
dispatches an event upwards through the scope hierarchy, while $broadcast
dispatches an event downwards to all child scopes.
To add to other answers. For me it was helpful to delete .mvn
directory and then add build.gradle
. New versions of IntelliJ will then automatically notice that you use Gradle.
Defining r as a dictionary should do the trick:
>>> r: dict = {'is_claimed': 'True', 'rating': 3.5}
>>> print(r['rating'])
3.5
>>> type(r)
<class 'dict'>
The simplest way would be to use https://github.com/mitchellh/mapstructure
import "github.com/mitchellh/mapstructure"
mapstructure.Decode(myData, &result)
If you want to do it yourself, you could do something like this:
http://play.golang.org/p/tN8mxT_V9h
func SetField(obj interface{}, name string, value interface{}) error {
structValue := reflect.ValueOf(obj).Elem()
structFieldValue := structValue.FieldByName(name)
if !structFieldValue.IsValid() {
return fmt.Errorf("No such field: %s in obj", name)
}
if !structFieldValue.CanSet() {
return fmt.Errorf("Cannot set %s field value", name)
}
structFieldType := structFieldValue.Type()
val := reflect.ValueOf(value)
if structFieldType != val.Type() {
return errors.New("Provided value type didn't match obj field type")
}
structFieldValue.Set(val)
return nil
}
type MyStruct struct {
Name string
Age int64
}
func (s *MyStruct) FillStruct(m map[string]interface{}) error {
for k, v := range m {
err := SetField(s, k, v)
if err != nil {
return err
}
}
return nil
}
func main() {
myData := make(map[string]interface{})
myData["Name"] = "Tony"
myData["Age"] = int64(23)
result := &MyStruct{}
err := result.FillStruct(myData)
if err != nil {
fmt.Println(err)
}
fmt.Println(result)
}
Enabling TLS 1.0 solved our issues as well (after disabling SSL v3). (Server 2012 R2 with ASP.net 4.0 website processing against PPI pay services). This is the RegEdit script I used to set everything the way I wanted. We only disabled SSL v3 for the Client and not the server as doing that broke other things that we were not ready to deal with yet. After we upgrade the site to .Net 4.5.2 then we will disable TLS 1.0 again.
This script enables all protocols, Server and Client except for SSL v3 for the Client.
Be sure to backup your registry!
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Client]
"Enabled"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Server]
"Enabled"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client]
"Enabled"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client]
"DisabledByDefault"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server]
"Enabled"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server]
"DisabledByDefault"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client]
"Enabled"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client]
"DisabledByDefault"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server]
"Enabled"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server]
"DisabledByDefault"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client]
"Enabled"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client]
"DisabledByDefault"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server]
"Enabled"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server]
"DisabledByDefault"=dword:00000000
My below code solve this issue, but i suggest First of all you need to understand what causing this issue and try the solution which you can find by changing code
I can give another way to solve this issue but better solution is to check your coding structure and try to analyse what makes this happen,if you do not find any solution then you can go with this code below
try{
Start:
///Put your file access code here
}catch (Exception ex)
{
//by anyway you need to handle this error with below code
if (ex.Message.StartsWith("The process cannot access the file"))
{
//Wait for 5 seconds to free that file and then start execution again
Thread.Sleep(5000);
goto Start;
}
}
For VirtualBox(5.0.24) Host=Mac(El Capitan) and Guest=RHEL(7.2)
Start up your RHEL Guest VM and open up a Terminal. Make sure you have the Developer Tools installed.
sudo yum groupinstall 'Developer Tools'
And the Kernel headers package so that the Guest Additions script can update your kernel.
sudo yum install kernel-devel*
Once you have the prereqs in place its time to install the Guest Additions. With your running VM selected go to the VirtualBox menu and select Devices --> Insert Guest Additions CD image...
Allow a few seconds for the mount to occur and the install script to kick off. Once they have click the "Run" button in the dialog that popped up in your Guest VM.
After the script finishes right click the CD Icon on the Desktop and choose Eject. Then Shutdown the Guest VM.
Create the Shared folder in you Host system using Terminal, I usually put it in my Documents folder, and make sure that your user can access it.
sudo mkdir ~/Documents/RhelShared
sudo chmod 755 <user> ~/Documents/RhelShared
In the Oracle VM Virtual Box Manager select your VM and then click on the "Shared folders" configuration element. In the next dialog click on the Add Folder icon to the right of the Folders List.
Then in the popup window select the Host Folder you just created as the Folder Path and give it a Folder Name that will be used by the Guest VM, also tick the "Auto Mount" check-box.
After rebooting the Guest VM launch a terminal on the Host and check the user that is associated with the running VirtualBox Guest process is either your user, very likely, or in a group with access to the Shared folder.
ps aux | grep VirtualBoxVM
Then as per several of the previous answers in a Terminal on the Guest VM add your user to the vboxsf group.
sudo usermod -a -G vboxsf <user>
Log out and in again to pickup the change.
The shared folder should now be available and accessible as sf_rhelshared assuming you used the same names as I did in the popup window above.
I work at Auth0 and I was involved in the design of the refresh token feature.
It all depends on the type of application and here is our recommended approach.
A good pattern is to refresh the token before it expires.
Set the token expiration to one week and refresh the token every time the user opens the web application and every one hour. If a user doesn't open the application for more than a week, they will have to login again and this is acceptable web application UX.
To refresh the token, your API needs a new endpoint that receives a valid, not expired JWT and returns the same signed JWT with the new expiration field. Then the web application will store the token somewhere.
Most native applications do login once and only once.
The idea is that the refresh token never expires and it can be exchanged always for a valid JWT.
The problem with a token that never expires is that never means never. What do you do if you lose your phone? So, it needs to be identifiable by the user somehow and the application needs to provide a way to revoke access. We decided to use the device's name, e.g. "maryo's iPad". Then the user can go to the application and revoke access to "maryo's iPad".
Another approach is to revoke the refresh token on specific events. An interesting event is changing the password.
We believe that JWT is not useful for these use cases, so we use a random generated string and we store it on our side.
Android Studio on Windows 8:
C:\Users\username\AppData\Local\Android\sdk\extras\intel\Hardware_Accelerated_Execution_Manager\intelhaxm-android.exe
(in username : please enter valid username)
Install it and restart your Android Studio.
The above steps are similar for win 7 and also same for eclipse.
Update: Windows 10 (similar steps) - pointed out by RBT
The following 3 functions work in browsers which don't support classList
:
function hasClass(el, className)
{
if (el.classList)
return el.classList.contains(className);
return !!el.className.match(new RegExp('(\\s|^)' + className + '(\\s|$)'));
}
function addClass(el, className)
{
if (el.classList)
el.classList.add(className)
else if (!hasClass(el, className))
el.className += " " + className;
}
function removeClass(el, className)
{
if (el.classList)
el.classList.remove(className)
else if (hasClass(el, className))
{
var reg = new RegExp('(\\s|^)' + className + '(\\s|$)');
el.className = el.className.replace(reg, ' ');
}
}
https://jaketrent.com/post/addremove-classes-raw-javascript/
Check if you access internet through a proxy, and then your add internet proxy address to yum
configuration.
add
proxy=http://ip:port
to /etc/yum.conf
Here's what it looks like using docker-compose
when building a custom Dockerfile
.
docker build -t imagename:version .
This will store your new version locally.docker-compose down
docker-compose.yml
file to reflect the new image name you set at step 1.docker-compose up -d
. It will look locally for the image and use your upgraded one.-EDIT-
My steps above are more verbose than they need to be. I've optimized my workflow by including the build: .
parameter to my docker-compose file. The steps looks this now:
docker-compose build
docker-compose up -d
I didn't realize at the time, but docker-compose is smart enough to simply update my container to the new image with the one command, instead of having to bring it down first.
Move all that in kernel.php if just the above method didn't work for you remember you have to move all those lines in kernel.php in addition to the above solution
let me first display the way it is there in the file already..
protected $middleware = [
\Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
];
/**
* The application's route middleware groups.
*
* @var array
*/
protected $middlewareGroups = [
'web' => [
\App\Http\Middleware\EncryptCookies::class,
\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
\Illuminate\Session\Middleware\StartSession::class,
\Illuminate\View\Middleware\ShareErrorsFromSession::class,
\App\Http\Middleware\VerifyCsrfToken::class,
],
'api' => [
'throttle:60,1',
],
];
now what you have to do is
protected $middleware = [
\Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
\App\Http\Middleware\EncryptCookies::class,
\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
\Illuminate\Session\Middleware\StartSession::class,
\Illuminate\View\Middleware\ShareErrorsFromSession::class,
\App\Http\Middleware\VerifyCsrfToken::class,
];
/**
* The application's route middleware groups.
*
* @var array
*/
protected $middlewareGroups = [
'web' => [
],
'api' => [
'throttle:60,1',
],
];
i.e.;
Now the finder window will be open with Provisioning Profiles folder. Delete all or any provisioning profiles from here and it will reflect in Xcode.
---
- hosts: all
tasks:
- name: Gather Version
debug:
msg: "The server Operating system is {{ ansible_distribution }} {{ ansible_distribution_major_version }}"
- name: Write Version
local_action: shell echo "This is {{ ansible_distribution }} {{ ansible_distribution_major_version }}" >> /tmp/output
RecyclerView
was created as a ListView
improvement, so yes, you can create an attached list with ListView
control, but using RecyclerView
is easier as it:
Reuses cells while scrolling up/down - this is possible with implementing View Holder in the ListView
adapter, but it was an optional thing, while in the RecycleView
it's the default way of writing adapter.
Decouples list from its container - so you can put list items easily at run time in the different containers (linearLayout, gridLayout) with setting LayoutManager
.
Example:
mRecyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
//or
mRecyclerView.setLayoutManager(new GridLayoutManager(this, 2));
ItemAnimator
. There is more about RecyclerView
, but I think these points are the main ones.
So, to conclude, RecyclerView
is a more flexible control for handling "list data" that follows patterns of delegation of concerns and leaves for itself only one task - recycling items.
Just extends your Adapter like below
public class RankingAdapter extends AnimatedRecyclerView<RankingAdapter.ViewHolder>
And add super method to onBindViewHolder
@Override
public void onBindViewHolder(ViewHolder holder, final int position) {
super.onBindViewHolder(holder, position);
It's automate way to create animated adapter like "Basheer AL-MOMANI"
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.ScaleAnimation;
import java.util.Random;
/**
* Created by eliaszkubala on 24.02.2017.
*/
public class AnimatedRecyclerView<T extends RecyclerView.ViewHolder> extends RecyclerView.Adapter<T> {
@Override
public T onCreateViewHolder(ViewGroup parent, int viewType) {
return null;
}
@Override
public void onBindViewHolder(T holder, int position) {
setAnimation(holder.itemView, position);
}
@Override
public int getItemCount() {
return 0;
}
protected int mLastPosition = -1;
protected void setAnimation(View viewToAnimate, int position) {
if (position > mLastPosition) {
ScaleAnimation anim = new ScaleAnimation(0.0f, 1.0f, 0.0f, 1.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
anim.setDuration(new Random().nextInt(501));//to make duration random number between [0,501)
viewToAnimate.startAnimation(anim);
mLastPosition = position;
}
}
}
Here are some supplemental examples to see the raw text that Postman passes in the request. You can see this by opening the Postman console:
Header
content-type: multipart/form-data; boundary=--------------------------590299136414163472038474
Body
key1=value1key2=value2
Header
Content-Type: application/x-www-form-urlencoded
Body
key1=value1&key2=value2
Header
Content-Type: text/plain
Body
This is some text.
Header
Content-Type: application/json
Body
{"key1":"value1","key2":"value2"}
Not possible with standard unix commands. You might have luck with a file recovery utility. Also, be aware, using rm changes the table of contents to mark those blocks as available to be overwritten, so simply using your computer right now risks those blocks being overwritten permanently. If it's critical data, you should turn off the computer before the file sectors gets overwritten. Good luck!
Some restore utility: http://www.ubuntugeek.com/recover-deleted-files-with-foremostscalpel-in-ubuntu.html
Forum where this was previously answered: http://webcache.googleusercontent.com/search?q=cache:m4hiPw-_GekJ:ubuntuforums.org/archive/index.php/t-1134955.html+&cd=1&hl=en&ct=clnk&gl=us
You are mixing tabs and spaces. Don't do that. Specifically, the __init__
function body is indented with tabs while your on_data
method is not.
Here is a screenshot of your code in my text editor; I set the tab stop to 8 spaces (which is what Python uses) and selected the text, which causes the editor to display tabs with continuous horizontal lines:
You have your editor set to expanding tabs to every fourth column instead, so the methods appear to line up.
Run your code with:
python -tt scriptname.py
and fix all errors that finds. Then configure your editor to use spaces only for indentation; a good editor will insert 4 spaces every time you use the TAB key.
For newest iTunes 12.7 and above can easily install IPA by copy and paste
For those using Swift 3, the equivalent method for the accepted answer is:
movieArr.sorted { $0.Name < $1.Name }
Now that you are editing the file you need to add the line into the server block, like so;
server {
client_max_body_size 8M;
//other lines...
}
If you are hosting multiple sites add it to the http context like so;
http {
client_max_body_size 8M;
//other lines...
}
And also update the upload_max_filesize
in your php.ini file so that you can upload files of the same size.
Once you are done you need to save, this can be done in vi with pressing esc
key and typing :wq
and returning.
Now you need to restart nginx and php to reload the configs. This can be done using the following commands;
sudo service nginx restart
sudo service php5-fpm restart
Or whatever your php service is called.
You could use flatMap. It can filter and map in one.
$scope.appIds = $scope.applicationsHere.flatMap(obj => obj.selected ? obj.id : [])
Suppose your dataframe is as follows:
>>> df
A B C ID
0 1 3 2 p
1 4 3 2 q
2 4 0 9 r
set_index
to set ID
columns as the dataframe index. df.set_index("ID", drop=True, inplace=True)
orient=index
parameter to have the index as dictionary keys. dictionary = df.to_dict(orient="index")
The results will be as follows:
>>> dictionary
{'q': {'A': 4, 'B': 3, 'D': 2}, 'p': {'A': 1, 'B': 3, 'D': 2}, 'r': {'A': 4, 'B': 0, 'D': 9}}
column_order= ["A", "B", "C"] # Determine your preferred order of columns
d = {} # Initialize the new dictionary as an empty dictionary
for k in dictionary:
d[k] = [dictionary[k][column_name] for column_name in column_order]
If you are using Windows, open up a command prompt and type 'netstat -an'.
If your server is running, you should be able to see the port 1883.
If you cannot go to Task Manager > Services and start/restart the Mosquitto server from there. If you cannot find it here too, your installation of Mosquitto has not been successful.
A more detailed tutorial for setting up Mosquitto with Windows / is linked here.
Be carreful of the know bug with SwitchCompat
It's a bug with corrupt file in drawable-hdpi on AppCompat https://code.google.com/p/android/issues/detail?id=78262
To fix it, juste override it with this 2 files https://github.com/lopespm/quick-fix-switchcompat-resources Add it on your directory drawable-hdpi
XML
<android.support.v7.widget.SwitchCompat
android:id="@+id/dev_switch_show_dev_only"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
And nothing was necessary on Java
using jQuery
$("#ddl").change(function () {
alert($(this).val());
});
right click on app-->select
New-->Select Folder-->then click on Assets Folder
Swift 3 and Swift 4:
myView.frame = CGRect(x: 0, y: 0, width: 0, height: 0)
With Mongo 3.2 and higher just use your connection string as is:
mongo mongodb://username:[email protected]:10011/my_database
To complete @cpu-100 answer,
in case you don't want to enable/use web interface, you can create a new credentials using command line like below and use it in your code to connect to RabbitMQ.
$ rabbitmqctl add_user YOUR_USERNAME YOUR_PASSWORD
$ rabbitmqctl set_user_tags YOUR_USERNAME administrator
$ rabbitmqctl set_permissions -p / YOUR_USERNAME ".*" ".*" ".*"
Swift 5 You can use a UIView extension so that you can add bottom border to any view:
extension UIView {
func addBottomLine(width: CGFloat, color: UIColor) {
let lineView: UIView = {
let view = UIView()
view.translatesAutoresizingMaskIntoConstraints = false
view.backgroundColor = color
return view
}()
addSubview(lineView)
NSLayoutConstraint.activate([
lineView.heightAnchor.constraint(equalToConstant: width),
lineView.leadingAnchor.constraint(equalTo: leadingAnchor),
lineView.trailingAnchor.constraint(equalTo: trailingAnchor),
lineView.bottomAnchor.constraint(equalTo: bottomAnchor)
])
}
}
You can also send characters that you want to be trimed
extension String {
func trim() -> String {
return self.trimmingCharacters(in: .whitespacesAndNewlines)
}
func trim(characterSet:CharacterSet) -> String {
return self.trimmingCharacters(in: characterSet)
}
}
validationMessage = validationMessage.trim(characterSet: CharacterSet(charactersIn: ","))
Try this ...
StringRequest sr = new StringRequest(type,url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
// valid response
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// error
}
}){
@Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String, String>();
params.put("username", username);
params.put("password", password);
params.put("grant_type", "password");
return params;
}
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String,String> params = new HashMap<String, String>();
// Removed this line if you dont need it or Use application/json
// params.put("Content-Type", "application/x-www-form-urlencoded");
return params;
}
You have to make sure the application is uninstalled.
In your phone, try going to settings/applications
and show the list of all your installed applications, then make sure the application is uninstalled for all users (in my case I had uninstalled the application but still for others).
convert a number into time as a string
func convertToHMS(number: Int) -> String {
let hour = number / 3600;
let minute = (number % 3600) / 60;
let second = (number % 3600) % 60 ;
var h = String(hour);
var m = String(minute);
var s = String(second);
if h.count == 1{
h = "0\(hour)";
}
if m.count == 1{
m = "0\(minute)";
}
if s.count == 1{
s = "0\(second)";
}
return "\(h):\(m):\(s)"
}
print(convertToHMS(number:3900))
For me, when I was about to unpair my device from xcode, I noticed it was just Preparing debugger support for my iPhone and it told me that "Xcode will continue when iPhone is finished." Similar to this issue
To also highlight the menu item when one of the child pages is active, also check for the other class (current-page-ancestor
) like below:
add_filter('nav_menu_css_class' , 'special_nav_class' , 10 , 2);
function special_nav_class ($classes, $item) {
if (in_array('current-page-ancestor', $classes) || in_array('current-menu-item', $classes) ){
$classes[] = 'active ';
}
return $classes;
}
We were running into the same problem and all we wanted was to set the
app:collapseIcon
attribute in the toolbar in the end, which we did not find since it is not very well documented :)
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="@dimen/toolbarHeight"
app:collapseIcon="@drawable/collapseBackIcon" />
There isn't any function in the standard library (to my knowledge) that will do it, but there are absolutely modules out there which have such functions. However, its easy enough that you can just write your own function:
def normalize(lst):
s = sum(lst)
return map(lambda x: float(x)/s, lst)
Sample output:
>>> normed = normalize(raw)
>>> normed
[0.25, 0.5, 0.25]
Try to do this:
getSupportActionBar().setDisplayShowTitleEnabled(false);
getSupportActionBar().setDisplayHomeAsUpEnabled(false);
getSupportActionBar().setDisplayShowTitleEnabled(false);
and if you made your custom toolbar (which i presume you did) then you can use the simplest way possible to do this:
toolbarTitle = (TextView)findViewById(R.id.toolbar_title);
toolbarSubTitle = (TextView)findViewById(R.id.toolbar_subtitle);
toolbarTitle.setText("Title");
toolbarSubTitle.setText("Subtitle");
Same goes for any other views you put in your toolbar. Hope it helps.
This answer is all about authorization and it is a complement of my previous answer about authentication
Why another answer? I attempted to expand my previous answer by adding details on how to support JSR-250 annotations. However the original answer became the way too long and exceeded the maximum length of 30,000 characters. So I moved the whole authorization details to this answer, keeping the other answer focused on performing authentication and issuing tokens.
@Secured
annotationBesides authentication flow shown in the other answer, role-based authorization can be supported in the REST endpoints.
Create an enumeration and define the roles according to your needs:
public enum Role {
ROLE_1,
ROLE_2,
ROLE_3
}
Change the @Secured
name binding annotation created before to support roles:
@NameBinding
@Retention(RUNTIME)
@Target({TYPE, METHOD})
public @interface Secured {
Role[] value() default {};
}
And then annotate the resource classes and methods with @Secured
to perform the authorization. The method annotations will override the class annotations:
@Path("/example")
@Secured({Role.ROLE_1})
public class ExampleResource {
@GET
@Path("{id}")
@Produces(MediaType.APPLICATION_JSON)
public Response myMethod(@PathParam("id") Long id) {
// This method is not annotated with @Secured
// But it's declared within a class annotated with @Secured({Role.ROLE_1})
// So it only can be executed by the users who have the ROLE_1 role
...
}
@DELETE
@Path("{id}")
@Produces(MediaType.APPLICATION_JSON)
@Secured({Role.ROLE_1, Role.ROLE_2})
public Response myOtherMethod(@PathParam("id") Long id) {
// This method is annotated with @Secured({Role.ROLE_1, Role.ROLE_2})
// The method annotation overrides the class annotation
// So it only can be executed by the users who have the ROLE_1 or ROLE_2 roles
...
}
}
Create a filter with the AUTHORIZATION
priority, which is executed after the AUTHENTICATION
priority filter defined previously.
The ResourceInfo
can be used to get the resource Method
and resource Class
that will handle the request and then extract the @Secured
annotations from them:
@Secured
@Provider
@Priority(Priorities.AUTHORIZATION)
public class AuthorizationFilter implements ContainerRequestFilter {
@Context
private ResourceInfo resourceInfo;
@Override
public void filter(ContainerRequestContext requestContext) throws IOException {
// Get the resource class which matches with the requested URL
// Extract the roles declared by it
Class<?> resourceClass = resourceInfo.getResourceClass();
List<Role> classRoles = extractRoles(resourceClass);
// Get the resource method which matches with the requested URL
// Extract the roles declared by it
Method resourceMethod = resourceInfo.getResourceMethod();
List<Role> methodRoles = extractRoles(resourceMethod);
try {
// Check if the user is allowed to execute the method
// The method annotations override the class annotations
if (methodRoles.isEmpty()) {
checkPermissions(classRoles);
} else {
checkPermissions(methodRoles);
}
} catch (Exception e) {
requestContext.abortWith(
Response.status(Response.Status.FORBIDDEN).build());
}
}
// Extract the roles from the annotated element
private List<Role> extractRoles(AnnotatedElement annotatedElement) {
if (annotatedElement == null) {
return new ArrayList<Role>();
} else {
Secured secured = annotatedElement.getAnnotation(Secured.class);
if (secured == null) {
return new ArrayList<Role>();
} else {
Role[] allowedRoles = secured.value();
return Arrays.asList(allowedRoles);
}
}
}
private void checkPermissions(List<Role> allowedRoles) throws Exception {
// Check if the user contains one of the allowed roles
// Throw an Exception if the user has not permission to execute the method
}
}
If the user has no permission to execute the operation, the request is aborted with a 403
(Forbidden).
To know the user who is performing the request, see my previous answer. You can get it from the SecurityContext
(which should be already set in the ContainerRequestContext
) or inject it using CDI, depending on the approach you go for.
If a @Secured
annotation has no roles declared, you can assume all authenticated users can access that endpoint, disregarding the roles the users have.
Alternatively to defining the roles in the @Secured
annotation as shown above, you could consider JSR-250 annotations such as @RolesAllowed
, @PermitAll
and @DenyAll
.
JAX-RS doesn't support such annotations out-of-the-box, but it could be achieved with a filter. Here are a few considerations to keep in mind if you want to support all of them:
@DenyAll
on the method takes precedence over @RolesAllowed
and @PermitAll
on the class.@RolesAllowed
on the method takes precedence over @PermitAll
on the class.@PermitAll
on the method takes precedence over @RolesAllowed
on the class.@DenyAll
can't be attached to classes.@RolesAllowed
on the class takes precedence over @PermitAll
on the class.So an authorization filter that checks JSR-250 annotations could be like:
@Provider
@Priority(Priorities.AUTHORIZATION)
public class AuthorizationFilter implements ContainerRequestFilter {
@Context
private ResourceInfo resourceInfo;
@Override
public void filter(ContainerRequestContext requestContext) throws IOException {
Method method = resourceInfo.getResourceMethod();
// @DenyAll on the method takes precedence over @RolesAllowed and @PermitAll
if (method.isAnnotationPresent(DenyAll.class)) {
refuseRequest();
}
// @RolesAllowed on the method takes precedence over @PermitAll
RolesAllowed rolesAllowed = method.getAnnotation(RolesAllowed.class);
if (rolesAllowed != null) {
performAuthorization(rolesAllowed.value(), requestContext);
return;
}
// @PermitAll on the method takes precedence over @RolesAllowed on the class
if (method.isAnnotationPresent(PermitAll.class)) {
// Do nothing
return;
}
// @DenyAll can't be attached to classes
// @RolesAllowed on the class takes precedence over @PermitAll on the class
rolesAllowed =
resourceInfo.getResourceClass().getAnnotation(RolesAllowed.class);
if (rolesAllowed != null) {
performAuthorization(rolesAllowed.value(), requestContext);
}
// @PermitAll on the class
if (resourceInfo.getResourceClass().isAnnotationPresent(PermitAll.class)) {
// Do nothing
return;
}
// Authentication is required for non-annotated methods
if (!isAuthenticated(requestContext)) {
refuseRequest();
}
}
/**
* Perform authorization based on roles.
*
* @param rolesAllowed
* @param requestContext
*/
private void performAuthorization(String[] rolesAllowed,
ContainerRequestContext requestContext) {
if (rolesAllowed.length > 0 && !isAuthenticated(requestContext)) {
refuseRequest();
}
for (final String role : rolesAllowed) {
if (requestContext.getSecurityContext().isUserInRole(role)) {
return;
}
}
refuseRequest();
}
/**
* Check if the user is authenticated.
*
* @param requestContext
* @return
*/
private boolean isAuthenticated(final ContainerRequestContext requestContext) {
// Return true if the user is authenticated or false otherwise
// An implementation could be like:
// return requestContext.getSecurityContext().getUserPrincipal() != null;
}
/**
* Refuse the request.
*/
private void refuseRequest() {
throw new AccessDeniedException(
"You don't have permissions to perform this action.");
}
}
Note: The above implementation is based on the Jersey RolesAllowedDynamicFeature
. If you use Jersey, you don't need to write your own filter, just use the existing implementation.
I have talked to customer support and confirmed that this can not be done on github.com. They have passed the suggestion along to the Github team though, so hopefully it will be possible in the future. If so, I'll be sure to edit this answer.
Meanwhile, Rory O'Kane's answer is a brilliant alternative based on cloc
and a shallow repo clone.
The reason is that by default the /oauth/token
endpoint is protected through Basic Access Authentication.
All you need to do is add the Authorization
header to your request.
You can easily test it with a tool like curl
by issuing the following command:
curl.exe --user [email protected]:12345678 http://localhost:8081/dummy-project-web/oauth/token?grant_type=client_credentials
Therefore, I would like to separate the string by the furthest delimiter.
I know this is an old question, but this is a simple requirement for which SUBSTR and INSTR would suffice. REGEXP are still slower and CPU intensive operations than the old subtsr and instr functions.
SQL> WITH DATA AS
2 ( SELECT 'F/P/O' str FROM dual
3 )
4 SELECT SUBSTR(str, 1, Instr(str, '/', -1, 1) -1) part1,
5 SUBSTR(str, Instr(str, '/', -1, 1) +1) part2
6 FROM DATA
7 /
PART1 PART2
----- -----
F/P O
As you said you want the furthest delimiter, it would mean the first delimiter from the reverse.
You approach was fine, but you were missing the start_position in INSTR. If the start_position is negative, the INSTR
function counts back start_position number of characters from the end of string and then searches towards the beginning of string.
If you want to scroll automatic without show scroll motion then you need to write following code:
mRecyclerView.getLayoutManager().scrollToPosition(position);
If you want to display scroll motion then you need to add following code. =>Step 1: You need to declare SmoothScroller.
RecyclerView.SmoothScroller smoothScroller = new
LinearSmoothScroller(this.getApplicationContext()) {
@Override
protected int getVerticalSnapPreference() {
return LinearSmoothScroller.SNAP_TO_START;
}
};
=>step 2: You need to add this code any event you want to perform scroll to specific position. =>First you need to set target position to SmoothScroller.
smoothScroller.setTargetPosition(position);
=>Then you need to set SmoothScroller to LayoutManager.
mRecyclerView.getLayoutManager().startSmoothScroll(smoothScroller);
A timestamp is a point in time. Typically this can be represented by a number of milliseconds past an epoc (the Unix Epoc of Jan 1 1970 12AM UTC). The format of that point in time depends on the time zone. While it is the same point in time, the "hours value" is not the same among time zones and one must take into account the offset from the UTC.
Here's some code to illustrate. A point is time is captured in three different ways.
var moment = require( 'moment' );
var localDate = new Date();
var localMoment = moment();
var utcMoment = moment.utc();
var utcDate = new Date( utcMoment.format() );
//These are all the same
console.log( 'localData unix = ' + localDate.valueOf() );
console.log( 'localMoment unix = ' + localMoment.valueOf() );
console.log( 'utcMoment unix = ' + utcMoment.valueOf() );
//These formats are different
console.log( 'localDate = ' + localDate );
console.log( 'localMoment string = ' + localMoment.format() );
console.log( 'utcMoment string = ' + utcMoment.format() );
console.log( 'utcDate = ' + utcDate );
//One to show conversion
console.log( 'localDate as UTC format = ' + moment.utc( localDate ).format() );
console.log( 'localDate as UTC unix = ' + moment.utc( localDate ).valueOf() );
Which outputs this:
localData unix = 1415806206570
localMoment unix = 1415806206570
utcMoment unix = 1415806206570
localDate = Wed Nov 12 2014 10:30:06 GMT-0500 (EST)
localMoment string = 2014-11-12T10:30:06-05:00
utcMoment string = 2014-11-12T15:30:06+00:00
utcDate = Wed Nov 12 2014 10:30:06 GMT-0500 (EST)
localDate as UTC format = 2014-11-12T15:30:06+00:00
localDate as UTC unix = 1415806206570
In terms of milliseconds, each are the same. It is the exact same point in time (though in some runs, the later millisecond is one higher).
As far as format, each can be represented in a particular timezone. And the formatting of that timezone'd string looks different, for the exact same point in time!
Are you going to compare these time values? Just convert to milliseconds. One value of milliseconds is always less than, equal to or greater than another millisecond value.
Do you want to compare specific 'hour' or 'day' values and worried they "came from" different timezones? Convert to UTC first using moment.utc( existingDate )
, and then do operations. Examples of those conversions, when coming out of the DB, are the last console.log
calls in the example.
This answer is based on the 2nd tip from this blog post: 28 Jupyter Notebook tips, tricks and shortcuts
You can add the following code to the top of your notebook
from IPython.core.interactiveshell import InteractiveShell
InteractiveShell.ast_node_interactivity = "all"
This tells Jupyter to print the results for any variable or statement on it’s own line. So you can then execute a cell solely containing
df1
df2
and it will "print out the beautiful tables for both datasets".
The clue is to work with the dict's items (i.e. key-value pair tuples). Then by using the second element of the item as the max
key (as opposed to the dict
key) you can easily extract the highest value and its associated key.
mydict = {'A':4,'B':10,'C':0,'D':87}
>>> max(mydict.items(), key=lambda k: k[1])
('D', 87)
>>> min(mydict.items(), key=lambda k: k[1])
('C', 0)
Cache() and persist() both the methods are used to improve performance of spark computation. These methods help to save intermediate results so they can be reused in subsequent stages.
The only difference between cache() and persist() is ,using Cache technique we can save intermediate results in memory only when needed while in Persist() we can save the intermediate results in 5 storage levels(MEMORY_ONLY, MEMORY_AND_DISK, MEMORY_ONLY_SER, MEMORY_AND_DISK_SER, DISK_ONLY).
For those of you using SCSS and the NPM package, here is my solution:
npm i --save @fortawesome/fontawesome-free
Then at the top of an SCSS file (ideally an SCSS file imported at the root of your application):
@import '@fortawesome/fontawesome-free/css/fontawesome.css';
@import '@fortawesome/fontawesome-free/css/all.css';
well this worked for me:
pip install mysqlclient
this is for python 3.x in window 7 i am not sure about other windows os versions
Please remove "C:\ProgramData\Oracle\Java\javapath\java.exe" from the Path variable and add your jdk bin path. It will work.
In my case the I have removed the the above path and added my JDK path which is "C:\Program Files\Java\jdk1.8.0_221\bin"
The below statements show how to open/reopen Modal without using bootstrap.
Add two classes in css
And then use the below jQuery to reopen the modal if it is closed.
.hide_block
{
display:none !important;
}
.display_block
{
display:block !important;
}
$("#Modal").removeClass('hide_block');
$("#Modal").addClass('display_block');
$("Modal").show("slow");
It worked fine for me :)
iPad Media Queries (All generations - including iPad mini)
Thanks to Apple's work in creating a consistent experience for users, and easy time for developers, all 5 different iPads (iPads 1-5 and iPad mini) can be targeted with just one CSS media query. The next few lines of code should work perfect for a responsive design.
iPad in portrait & landscape
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px) { /* STYLES GO HERE */}
iPad in landscape
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px)
and (orientation : landscape) { /* STYLES GO HERE */}
iPad in portrait
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px)
and (orientation : portrait) { /* STYLES GO HERE */ }
iPad 3 & 4 Media Queries
If you're looking to target only 3rd and 4th generation Retina iPads (or tablets with similar resolution) to add @2x graphics, or other features for the tablet's Retina display, use the following media queries.
Retina iPad in portrait & landscape
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px)
and (-webkit-min-device-pixel-ratio: 2) { /* STYLES GO HERE */}
Retina iPad in landscape
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px)
and (orientation : landscape)
and (-webkit-min-device-pixel-ratio: 2) { /* STYLES GO HERE */}
Retina iPad in portrait
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px)
and (orientation : portrait)
and (-webkit-min-device-pixel-ratio: 2) { /* STYLES GO HERE */ }
iPad 1 & 2 Media Queries
If you're looking to supply different graphics or choose different typography for the lower resolution iPad display, the media queries below will work like a charm in your responsive design!
iPad 1 & 2 in portrait & landscape
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px)
and (-webkit-min-device-pixel-ratio: 1){ /* STYLES GO HERE */}
iPad 1 & 2 in landscape
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px)
and (orientation : landscape)
and (-webkit-min-device-pixel-ratio: 1) { /* STYLES GO HERE */}
iPad 1 & 2 in portrait
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px)
and (orientation : portrait)
and (-webkit-min-device-pixel-ratio: 1) { /* STYLES GO HERE */ }
Source: http://stephen.io/mediaqueries/
Login to SQL Plus client on the oracle database server machine.
enter user-name: system
enter password: password [Only if, if you have not changed your default password while DB installation]
press enter. after which, you will be seeing the connection status.
Now,
SQL> ALTER USER [USER_NAME] ACCOUNT UNLOCK;
press enter.
you will be seeing message: user altered.
Now try login with the user name on db client[sqldeveloper].
You can get Google Drive to automatically convert csv files to Google Sheets by appending
?convert=true
to the end of the api url you are calling.
EDIT: Here is the documentation on available parameters: https://developers.google.com/drive/v2/reference/files/insert
Also, while searching for the above link, I found this question has already been answered here:
I got the same error one day You should use this:
1.Get the status of your mongo service:
/etc/init.d/mongod status
or
sudo service mongod status
2.If it's not started repair it like this:
sudo rm /var/lib/mongodb/mongod.lock
mongod --repair
sudo service mongodb start
And check again if the service is started again(1)
I have just sent an email with gmail through Python. Try to use smtplib.SMTP_SSL to make the connection. Also, you may try to change the gmail domain and port.
So, you may get a chance with:
server = smtplib.SMTP_SSL('smtp.googlemail.com', 465)
server.login(gmail_user, password)
server.sendmail(gmail_user, TO, BODY)
As a plus, you could check the email builtin module. In this way, you can improve the readability of you your code and handle emails headers easily.
Here is my solution if you need to change only color of title and not color of text in search widget.
layout/toolbar.xml
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/toolbar"
android:background="@color/toolbar_bg"
app:theme="@style/AppTheme.Toolbar"
app:titleTextAppearance="@style/AppTheme.Toolbar.Title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"/>
values/themes.xml
<resources>
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="windowActionBar">false</item>
</style>
<style name="AppTheme.Toolbar" parent="ThemeOverlay.AppCompat.ActionBar">
<!-- Customize color of navigation drawer icon and back arrow -->
<item name="colorControlNormal">@color/toolbar_icon</item>
</style>
<style name="AppTheme.Toolbar.Title" parent="TextAppearance.Widget.AppCompat.Toolbar.Title">
<!-- Set proper title size -->
<item name="android:textSize">@dimen/abc_text_size_title_material_toolbar</item>
<!-- Set title color -->
<item name="android:textColor">@color/toolbar_title</item>
</style>
</resources>
In the similar way, you can set also subtitleTextAppearance.
If you have a list of lists, you only needed to use ...
import numpy as np
...
npa = np.asarray(someListOfLists, dtype=np.float32)
per this LINK in the scipy / numpy documentation. You just needed to define dtype inside the call to asarray.
You can get a date with that value by using the NSDate(withTimeIntervalSince1970:)
initializer:
let date = NSDate(timeIntervalSince1970: 1415637900)
"Better" is subjective.
querySelector
is the newer feature.
getElementById
is better supported than querySelector
.
querySelector
is better supported than getElementsByClassName
.
querySelector
lets you find elements with rules that can't be expressed with getElementById
and getElementsByClassName
You need to pick the appropriate tool for any given task.
(In the above, for querySelector
read querySelector
/ querySelectorAll
).
If your only requirement is to print the third field of every line, with each field delimited by a comma, you can use cut:
cut -d, -f3 file
-d,
sets the delimiter to a comma-f3
specifies that only the third field is to be printedI assume that </
is not accepted inside the string.
Try to escape the forward slash "/" by preceding it with a backward slash "\" for example:
var hh = "<b>test<\/b>";
If you are reading the dataframe from a file (say CSV or Excel) then use :
df.read_csv(path , na_filter=False)
df.read_excel(path , na_filter=False)
This will automatically consider the empty fields as empty strings ''
If you already have the dataframe
df = df.replace(np.nan, '', regex=True)
df = df.fillna('')
Swift 5
yourButton.setImage(UIImage(named: "BUTTON_FILENAME.png"), for: .normal)
You can change colors UITabBarItem by storyboard but if you want to change colors by code it's very easy:
// Use this for change color of selected bar
[[UITabBar appearance] setTintColor:[UIColor blueColor]];
// This for change unselected bar (iOS 10)
[[UITabBar appearance] setUnselectedItemTintColor:[UIColor yellowColor]];
// And this line for change color of all tabbar
[[UITabBar appearance] setBarTintColor:[UIColor whiteColor]];
Please use --user at end of this, it is working fine for me.
pip install enum34 --user
Above solutions seem to assume integers. Here's a minor modification to allow decimals:
num = float("".join(filter(lambda d: str.isdigit(d) or d == '.', inputString)
(Doesn't account for - sign, and assumes any period is properly placed in digit string, not just some english-language period lying around. It's not built to be indestructible, but worked for my data case.)
Starting with AspNetCore 2.0, it's recommended to use ContentResult
instead of the Produce
attribute in this case. See: https://github.com/aspnet/Mvc/issues/6657#issuecomment-322586885
This doesn't rely on serialization nor on content negotiation.
[HttpGet]
public ContentResult Index() {
return new ContentResult {
ContentType = "text/html",
StatusCode = (int)HttpStatusCode.OK,
Content = "<html><body>Hello World</body></html>"
};
}
<ProgressBar
android:id="@+id/loading_spinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:indeterminateTintMode="src_atop"
android:indeterminateTint="@color/your_customized_color"
android:layout_gravity="center" />
The effect looks like this:
I found this worked best for my usecase:
<i class="btn btn-light fa fa-dribbble fa-4x" href="#"></i>
<i class="btn btn-light fa fa-behance-square fa-4x" href="#"></i>
<i class="btn btn-light fa fa-linkedin-square fa-4x" href="#"></i>
<i class="btn btn-light fa fa-twitter-square fa-4x" href="#"></i>
<i class="btn btn-light fa fa-facebook-square fa-4x" href="#"></i>
There is a little known feature in TypeScript that allows you to use Mixins to create re-usable small objects. You can compose these into larger objects using multiple inheritance (multiple inheritance is not allowed for classes, but it is allowed for mixins - which are like interfaces with an associated implenentation).
More information on TypeScript Mixins
I think you could use this technique to share common components between many classes in your game and to re-use many of these components from a single class in your game:
Here is a quick Mixins demo... first, the flavours that you want to mix:
class CanEat {
public eat() {
alert('Munch Munch.');
}
}
class CanSleep {
sleep() {
alert('Zzzzzzz.');
}
}
Then the magic method for Mixin creation (you only need this once somewhere in your program...)
function applyMixins(derivedCtor: any, baseCtors: any[]) {
baseCtors.forEach(baseCtor => {
Object.getOwnPropertyNames(baseCtor.prototype).forEach(name => {
if (name !== 'constructor') {
derivedCtor.prototype[name] = baseCtor.prototype[name];
}
});
});
}
And then you can create classes with multiple inheritance from mixin flavours:
class Being implements CanEat, CanSleep {
eat: () => void;
sleep: () => void;
}
applyMixins (Being, [CanEat, CanSleep]);
Note that there is no actual implementation in this class - just enough to make it pass the requirements of the "interfaces". But when we use this class - it all works.
var being = new Being();
// Zzzzzzz...
being.sleep();
instead of id use title to identify your element and write the code as below.
$(document).ready(()=>{
$("input[title='MyObject']").change(()=>{
console.log("Field has been changed...")
})
});