Have no fear, because a brave group of Ops Programmers have solved the situation with a brand spanking new nginx_tcp_proxy_module

Written in August 2012, so if you are from the future you should do your homework.

Prerequisites

Assumes you are using CentOS:

• Remove current instance of NGINX (suggest using dev server for this)
• If possible, save your old NGINX config files so you can re-use them (that includes your init.d/nginx script)
• yum install pcre pcre-devel openssl openssl-devel and any other necessary libs for building NGINX
• Get the nginx_tcp_proxy_module from GitHub here https://github.com/yaoweibin/nginx_tcp_proxy_module and remember the folder where you placed it (make sure it is not zipped)

Build Your New NGINX

Again, assumes CentOS:

• cd /usr/local/
• wget 'http://nginx.org/download/nginx-1.2.1.tar.gz'
• tar -xzvf nginx-1.2.1.tar.gz
• cd nginx-1.2.1/
• patch -p1 < /path/to/nginx_tcp_proxy_module/tcp.patch
• ./configure --add-module=/path/to/nginx_tcp_proxy_module --with-http_ssl_module (you can add more modules if you need them)
• make
• make install

Optional:

• sudo /sbin/chkconfig nginx on

Set Up Nginx

Remember to copy over your old configuration files first if you want to re-use them.

Important: you will need to create a tcp {} directive at the highest level in your conf. Make sure it is not inside your http {} directive.

The example config below shows a single upstream websocket server, and two proxies for both SSL and Non-SSL.

tcp {
    upstream websockets {
        ## webbit websocket server in background
        server 127.0.0.1:5501;
        
        ## server 127.0.0.1:5502; ## add another server if you like!

        check interval=3000 rise=2 fall=5 timeout=1000;
    }   

    server {
        server_name _;
        listen 7070;

        timeout 43200000;
        websocket_connect_timeout 43200000;
        proxy_connect_timeout 43200000;

        so_keepalive on;
        tcp_nodelay on;

        websocket_pass websockets;
        websocket_buffer 1k;
    }

    server {
        server_name _;
        listen 7080;

        ssl on;
        ssl_certificate      /path/to/cert.pem;
        ssl_certificate_key  /path/to/key.key;

        timeout 43200000;
        websocket_connect_timeout 43200000;
        proxy_connect_timeout 43200000;

        so_keepalive on;
        tcp_nodelay on;

        websocket_pass websockets;
        websocket_buffer 1k;
    }
}

I know this does not answer this question, but I came here because I had the same error with nodeJS server. I am stuck a long time until I found the solution. My solution just adds slash or /in end of proxyreserve apache.

my old code is:

ProxyPass / http://192.168.1.1:3001
ProxyPassReverse / http://192.168.1.1:3001

the correct code is:

ProxyPass / http://192.168.1.1:3001/
ProxyPassReverse / http://192.168.1.1:3001/

For route controller method we have to define only one route. In get or post method we have to define the route separately.

And the resources method is used to creates multiple routes to handle a variety of Restful actions.

Here the Laravel documentation about this.

How about creating a custom ObjectResult class that represents an Internal Server Error like the one for OkObjectResult? You can put a simple method in your own base class so that you can easily generate the InternalServerError and return it just like you do Ok() or BadRequest().

[Route("api/[controller]")]
[ApiController]
public class MyController : MyControllerBase
{
    [HttpGet]
    [Route("{key}")]
    public IActionResult Get(int key)
    {
        try
        {
            //do something that fails
        }
        catch (Exception e)
        {
            LogException(e);
            return InternalServerError();
        }
    }
}

public class MyControllerBase : ControllerBase
{
    public InternalServerErrorObjectResult InternalServerError()
    {
        return new InternalServerErrorObjectResult();
    }

    public InternalServerErrorObjectResult InternalServerError(object value)
    {
        return new InternalServerErrorObjectResult(value);
    }
}

public class InternalServerErrorObjectResult : ObjectResult
{
    public InternalServerErrorObjectResult(object value) : base(value)
    {
        StatusCode = StatusCodes.Status500InternalServerError;
    }

    public InternalServerErrorObjectResult() : this(null)
    {
        StatusCode = StatusCodes.Status500InternalServerError;
    }
}

On most installs you can find it here:

/etc/php.ini

Picking up on bta's lookup table idea, you can create the lookup table with a block. Values get generated when they are first accessed and stored for later:

>> lookup_table = Hash.new { |h, i| h[i] = i.to_s(2) }
=> {}
>> lookup_table[1]
=> "1"
>> lookup_table[2]
=> "10"
>> lookup_table[20]
=> "10100"
>> lookup_table[200]
=> "11001000"
>> lookup_table
=> {1=>"1", 200=>"11001000", 2=>"10", 20=>"10100"}

You want to do the check for undefined first. If you do it the other way round, it will generate an error if the array is undefined.

if (array === undefined || array.length == 0) {
    // array empty or does not exist
}

Update

This answer is getting a fair amount of attention, so I'd like to point out that my original answer, more than anything else, addressed the wrong order of the conditions being evaluated in the question. In this sense, it fails to address several scenarios, such as null values, other types of objects with a length property, etc. It is also not very idiomatic JavaScript.

The foolproof approach
Taking some inspiration from the comments, below is what I currently consider to be the foolproof way to check whether an array is empty or does not exist. It also takes into account that the variable might not refer to an array, but to some other type of object with a length property.

if (!Array.isArray(array) || !array.length) {
  // array does not exist, is not an array, or is empty
  // ? do not attempt to process array
}

To break it down:

1. Array.isArray(), unsurprisingly, checks whether its argument is an array. This weeds out values like null, undefined and anything else that is not an array.
   Note that this will also eliminate array-like objects, such as the arguments object and DOM NodeList objects. Depending on your situation, this might not be the behavior you're after.

2. The array.length condition checks whether the variable's length property evaluates to a truthy value. Because the previous condition already established that we are indeed dealing with an array, more strict comparisons like array.length != 0 or array.length !== 0 are not required here.

The pragmatic approach
In a lot of cases, the above might seem like overkill. Maybe you're using a higher order language like TypeScript that does most of the type-checking for you at compile-time, or you really don't care whether the object is actually an array, or just array-like.

In those cases, I tend to go for the following, more idiomatic JavaScript:

if (!array || !array.length) {
    // array or array.length are falsy
    // ? do not attempt to process array
}

Or, more frequently, its inverse:

if (array && array.length) {
    // array and array.length are truthy
    // ? probably OK to process array
}

With the introduction of the optional chaining operator (Elvis operator) in ECMAScript 2020, this can be shortened even further:

if (!array?.length) {
    // array or array.length are falsy
    // ? do not attempt to process array
}

Or the opposite:

if (array?.length) {
    // array and array.length are truthy
    // ? probably OK to process array
}

If you want to get the path of the root site, use this:

$(location).attr('href').replace($(location).attr('pathname'),'');

Try this steps:

1. unplug device
2. adb kill-server
3. adb start-server
4. plug device

You need to allow Allow USB debugging in your device when popup.

It looks like you are calling next even if the scanner no longer has a next element to provide... throwing the exception.

while(!file.next().equals(treasure)){
        file.next();
        }

Should be something like

boolean foundTreasure = false;

while(file.hasNext()){
     if(file.next().equals(treasure)){
          foundTreasure = true;
          break; // found treasure, if you need to use it, assign to variable beforehand
     }
}
    // out here, either we never found treasure at all, or the last element we looked as was treasure... act accordingly

Regarding how you log messages within code, I would opt for the second approach:

ILog log = LogManager.GetLogger(typeof(Bar));
log.Info("message");

Where messages sent to the log above will be 'named' using the fully-qualifed type Bar, e.g.

MyNamespace.Foo.Bar [INFO] message

The advantage of this approach is that it is the de-facto standard for organising logging, it also allows you to filter your log messages by namespace. For example, you can specify that you want to log INFO level message, but raise the logging level for Bar specifically to DEBUG:

<log4net>
    <!-- appenders go here -->
    <root>
        <level value="INFO" />
        <appender-ref ref="myLogAppender" />
    </root>

    <logger name="MyNamespace.Foo.Bar">
        <level value="DEBUG" />
    </logger>
</log4net>

The ability to filter your logging via name is a powerful feature of log4net, if you simply log all your messages to "myLog", you loose much of this power!

Regarding the EPiServer CMS, you should be able to use the above approach to specify a different logging level for the CMS and your own code.

For further reading, here is a codeproject article I wrote on logging:

• The Art Of Logging

Faced the same issue post Firefox update to 29.0.1, this is also listed out here https://bugzilla.mozilla.org/show_bug.cgi?id=947728

Solutions: They(Mozilla guys) have fixed this by introducing support for "-moz-appearance" for <input type="number">. You just need to have a style associated with your input field with "-moz-appearance:textfield;".

I prefer the CSS way E.g.:-

.input-mini{
-moz-appearance:textfield;}

Or

You can do it inline as well:

<input type="number" style="-moz-appearance: textfield">

Edit:
In 2.7 / 3.2 there is a new writeheader() method. Also, John Machin's answer provides a simpler method of writing the header row.
Simple example of using the writeheader() method now available in 2.7 / 3.2:

from collections import OrderedDict
ordered_fieldnames = OrderedDict([('field1',None),('field2',None)])
with open(outfile,'wb') as fou:
    dw = csv.DictWriter(fou, delimiter='\t', fieldnames=ordered_fieldnames)
    dw.writeheader()
    # continue on to write data

Instantiating DictWriter requires a fieldnames argument.
From the documentation:

The fieldnames parameter identifies the order in which values in the dictionary passed to the writerow() method are written to the csvfile.

Put another way: The Fieldnames argument is required because Python dicts are inherently unordered.
Below is an example of how you'd write the header and data to a file.
Note: with statement was added in 2.6. If using 2.5: from __future__ import with_statement

with open(infile,'rb') as fin:
    dr = csv.DictReader(fin, delimiter='\t')

# dr.fieldnames contains values from first row of `f`.
with open(outfile,'wb') as fou:
    dw = csv.DictWriter(fou, delimiter='\t', fieldnames=dr.fieldnames)
    headers = {} 
    for n in dw.fieldnames:
        headers[n] = n
    dw.writerow(headers)
    for row in dr:
        dw.writerow(row)

As @FM mentions in a comment, you can condense header-writing to a one-liner, e.g.:

with open(outfile,'wb') as fou:
    dw = csv.DictWriter(fou, delimiter='\t', fieldnames=dr.fieldnames)
    dw.writerow(dict((fn,fn) for fn in dr.fieldnames))
    for row in dr:
        dw.writerow(row)

I had a situation whereby I had to replace the HTML tags with two different replacement results.

$trades = "<li>Sprinkler and Fire      Protection Installer</li>
<li>Steamfitter </li>
<li>Terrazzo, Tile and Marble      Setter</li>";

$s1 =  str_replace('<li>', '"', $trades);

$s2 = str_replace('</li>', '",', $s1);

echo $s2;

result

"Sprinkler and Fire Protection Installer", "Steamfitter ", "Terrazzo, Tile and Marble Setter",

Your server process has received a SIGPIPE writing to a socket. This usually happens when you write to a socket fully closed on the other (client) side. This might be happening when a client program doesn't wait till all the data from the server is received and simply closes a socket (using close function).

In a C program you would normally try setting to ignore SIGPIPE signal or setting a dummy signal handler for it. In this case a simple error will be returned when writing to a closed socket. In your case a python seems to throw an exception that can be handled as a premature disconnect of the client.

You can use the Membership Operator isCase() which is another groovy way:

assert Date.isCase(new Date())

What you really need is to compare two objects of the same kind.

1. Create an NSDate out of your string date (@"2009-05-11") :
   http://blog.evandavey.com/2008/12/how-to-convert-a-string-to-nsdate.html

2. If the current date is a string too, make it an NSDate. If its already an NSDate, leave it.

Well, actually I'll have to say David is right with his solution, but there are some topics disturbing me:

1. You should never send your model to the view => This is correct
2. If you create a ViewModel, and include the Model as member in the ViewModel, then you effectively sent your model to the View => this is BAD
3. Using dictionaries to send the options to the view => this not good style

So how can you create a better coupling?

I would use a tool like AutoMapper or ValueInjecter to map between ViewModel and Model. AutoMapper does seem to have the better syntax and feel to it, but the current version lacks a very severe topic: It is not able to perform the mapping from ViewModel to Model (under certain circumstances like flattening, etc., but this is off topic) So at present I prefer to use ValueInjecter.

So you create a ViewModel with the fields you need in the view. You add the SelectList items you need as lookups. And you add them as SelectLists already. So you can query from a LINQ enabled sourc, select the ID and text field and store it as a selectlist: You gain that you do not have to create a new type (dictionary) as lookup and you just move the new SelectList from the view to the controller.

  // StaffTypes is an IEnumerable<StaffType> from dbContext
  // viewModel is the viewModel initialized to copy content of Model Employee  
  // viewModel.StaffTypes is of type SelectList

  viewModel.StaffTypes =
    new SelectList(
        StaffTypes.OrderBy( item => item.Name )
        "StaffTypeID",
        "Type",
        viewModel.StaffTypeID
    );

In the view you just have to call

@Html.DropDownListFor( model => mode.StaffTypeID, model.StaffTypes )

Back in the post element of your method in the controller you have to take a parameter of the type of your ViewModel. You then check for validation. If the validation fails, you have to remember to re-populate the viewModel.StaffTypes SelectList, because this item will be null on entering the post function. So I tend to have those population things separated into a function. You just call back return new View(viewModel) if anything is wrong. Validation errors found by MVC3 will automatically be shown in the view.

If you have your own validation code you can add validation errors by specifying which field they belong to. Check documentation on ModelState to get info on that.

If the viewModel is valid you have to perform the next step:

If it is a create of a new item, you have to populate a model from the viewModel (best suited is ValueInjecter). Then you can add it to the EF collection of that type and commit changes.

If you have an update, you get the current db item first into a model. Then you can copy the values from the viewModel back to the model (again using ValueInjecter gets you do that very quick). After that you can SaveChanges and are done.

Feel free to ask if anything is unclear.

Your svn merge syntax is wrong.

You want to checkout a working copy of trunk and then use the svn merge --reintegrate option:

$ pwd
/home/user/project-trunk

$ svn update  # (make sure the working copy is up to date)
At revision <N>.

$ svn merge --reintegrate ^/project/branches/branch_1
--- Merging differences between repository URLs into '.':
U    foo.c
U    bar.c
 U   .

$ # build, test, verify, ...

$ svn commit -m "Merge branch_1 back into trunk!"
Sending        .
Sending        foo.c
Sending        bar.c
Transmitting file data ..
Committed revision <N+1>.

See the SVN book chapter on merging for more details.

Note that at the time it was written, this was the right answer (and was accepted), but things have moved on. See the answer of topek, and http://subversion.apache.org/docs/release-notes/1.8.html#auto-reintegrate

I thought I will share how I resolved the same issue "Error Could not open lib\amd64\jvm.cfg". I found the Java run time Jre7 is missing amd64 folder under lib. However, I have 1.7.0_25 JDK which is having jre folder and also having amd64.

I moved the original contents of jre7 folder to a backup file and copied everything from 1.7.0_25\jre.

Now I am not getting this error anymore and able to proceed with scene builder.

ctrl + H  will show the option to replace in the bottom . 

Once you click on replace it will show as below

just export the table with data .. then copy its sql like

CREATE TABLE IF NOT EXISTS `employees` (
  `emp_badgenumber` int(20) NOT NULL AUTO_INCREMENT,
  `emp_fullname` varchar(100) NOT NULL,
  `emp_father_name` varchar(30) NOT NULL,
  `emp_mobile` varchar(20) DEFAULT NULL,
  `emp_cnic` varchar(20) DEFAULT NULL,
  `emp_gender` varchar(10) NOT NULL,
  `emp_is_deleted` tinyint(4) DEFAULT '0',
  `emp_registration_date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `emp_overtime_allowed` tinyint(4) DEFAULT '1',
  PRIMARY KEY (`emp_badgenumber`),
  UNIQUE KEY `bagdenumber` (`emp_badgenumber`),
  KEY `emp_badgenumber` (`emp_badgenumber`),
  KEY `emp_badgenumber_2` (`emp_badgenumber`)
) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=111121326 ;

now change auto increment value and execute sql.

Please try this:

DELETE FROM `table` WHERE id >=163 and id<= 265

If your file has a return statement like this:

<?php return array(
  'AF' => 'Afeganistão',
  'ZA' => 'África do Sul',
  ...
  'ZW' => 'Zimbabué'
);

You can get this to a variable like this:

$data = include $filePath;

Os X Mojave 10.14 has:

Error: The Command Line Tools header package must be installed on Mojave.

Solution. Go to

/Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg

location and install the package manually. And brew will start working and we can run:

brew uninstall --force git
brew cleanup --force -s git
brew prune
brew install git

sklearn.externals.joblib has been deprecated since 0.21 and will be removed in v0.23:

/usr/local/lib/python3.7/site-packages/sklearn/externals/joblib/init.py:15: FutureWarning: sklearn.externals.joblib is deprecated in 0.21 and will be removed in 0.23. Please import this functionality directly from joblib, which can be installed with: pip install joblib. If this warning is raised when loading pickled models, you may need to re-serialize those models with scikit-learn 0.21+.
warnings.warn(msg, category=FutureWarning)

Therefore, you need to install joblib:

pip install joblib

and finally write the model to disk:

import joblib
from sklearn.datasets import load_digits
from sklearn.linear_model import SGDClassifier


digits = load_digits()
clf = SGDClassifier().fit(digits.data, digits.target)

with open('myClassifier.joblib.pkl', 'wb') as f:
    joblib.dump(clf, f, compress=9)

Now in order to read the dumped file all you need to run is:

with open('myClassifier.joblib.pkl', 'rb') as f:
    my_clf = joblib.load(f)

If one of the inserts fail, or any part of the command fails, does SQL server roll back the transaction?

No, it does not.

If it does not rollback, do I have to send a second command to roll it back?

Sure, you should issue ROLLBACK instead of COMMIT.

If you want to decide whether to commit or rollback the transaction, you should remove the COMMIT sentence out of the statement, check the results of the inserts and then issue either COMMIT or ROLLBACK depending on the results of the check.

Calling m.check(side), meaning you are running actual code, but you can't run code outside main() - you can only define variables. In C++, code can only appear inside function bodies or in variable initializes.

You'll find the answer by typing ?rm

rm(data_1, data_2, data_3)

If you are checking against a lot of intervals, I suggest using an interval tree.

Ok, I finally found my solution.

If you are using templates on your view (using Moustache.js, or others...), you must take into account that some of your classes can be loaded twice, or will be created later. So, you must apply this function $(".datepicker" ).datepicker(); once the instance has been created.

Update:
Often people want the most recent version of gcc, and devtoolset is being kept up-to-date, so maybe you want devtoolset-N where N={4,5,6,7...}, check yum for the latest available on your system). Updated the cmds below for N=7.

There is a package for gcc-7.2.1 for devtoolset-7 as an example. First you need to enable the Software Collections, then it's available in devtoolset-7:

sudo yum install centos-release-scl
sudo yum install devtoolset-7-gcc*
scl enable devtoolset-7 bash
which gcc
gcc --version

Have a look at localize, or l

eg:

l Time.at(1100897479)

You could simply use the + or += operator as follows:

a = [1, 2, 3]
b = [4, 5, 6]

c = a + b

Or:

c = []
a = [1, 2, 3]
b = [4, 5, 6]

c += (a + b)

Also, if you want the values in the merged list to be unique you can do:

c = list(set(a + b))

You can use Programmatic Navigation.In order to go back, you use this:

router.go(n) 

Where n can be positive or negative (to go back). This is the same as history.back().So you can have your element like this:

<a @click="$router.go(-1)">back</a>

value = value.setScale(2, RoundingMode.CEILING)

Possible solution that worked for me with jest

import React from "react";
import { shallow } from "enzyme";
import { Provider } from "react-redux";
import configureMockStore from "redux-mock-store";
import TestPage from "../TestPage";

const mockStore = configureMockStore();
const store = mockStore({});

describe("Testpage Component", () => {
    it("should render without throwing an error", () => {
        expect(
            shallow(
                <Provider store={store}>
                    <TestPage />
                </Provider>
            ).exists(<h1>Test page</h1>)
        ).toBe(true);
    });
});

Only MyISAM allows for FULLTEXT, as seen here.

Try this:

CREATE TABLE gamemech_chat (
  id bigint(20) unsigned NOT NULL auto_increment,
  from_userid varchar(50) NOT NULL default '0',
  to_userid varchar(50) NOT NULL default '0',
  text text NOT NULL,
  systemtext text NOT NULL,
  timestamp datetime NOT NULL default '0000-00-00 00:00:00',
  chatroom bigint(20) NOT NULL default '0',
  PRIMARY KEY  (id),
  KEY from_userid (from_userid),
  FULLTEXT KEY from_userid_2 (from_userid),
  KEY chatroom (chatroom),
  KEY timestamp (timestamp)
) ENGINE=MyISAM;

UPDATE some_table 
   SET this_column=x, that_column=y 
   WHERE something LIKE 'them'

I am fairly sure that Linq can do this.... but MyList does not have a select method on it (which is what I would have used).

Yes, LINQ can do this. It's simply:

MyList.Select(x => x.Name).ToArray();

Most likely the issue is that you either don't have a reference to System.Core, or you are missing an using directive for System.Linq.

content=`wget -O - $url`

I was getting this exact error when loading an HTML file on the browser that was using a json file from the local directory. In my case, I was able to solve this by creating a simple node server that allowed to server static content. I left the code for this at this other answer.

You can read the Name from WindowsIdentity:

var user = System.Security.Principal.WindowsIdentity.GetCurrent().Name;
return Ok(user);

(I found this answer from a video: http://www.youtube.com/watch?v=xmvRF7koJ5E)

1. Download msvcp71.dll and msvcr71.dll from the web.

2. Save them to your C:\Windows\System32 folder.

3. Save them to your C:\Windows\SysWOW64 folder as well (if you have a 64-bit operating system).

Now try running your code file in Python and it will load the graph in couple of seconds.

This ones a little old but was high in the google ranking so I thought I would throw in the answer I found from Chrome, pdf display, Duplicate headers received from the server

Basically my problem also was that the filename contained commas. Do a replace on commas to remove them and you should be fine. My function to make a valid filename is below.

    public static string MakeValidFileName(string name)
    {
        string invalidChars = Regex.Escape(new string(System.IO.Path.GetInvalidFileNameChars()));
        string invalidReStr = string.Format(@"[{0}]+", invalidChars);
        string replace = Regex.Replace(name, invalidReStr, "_").Replace(";", "").Replace(",", "");
        return replace;
    }

You can do this with this library. https://github.com/itmor/events-js

const events = new Events();

events.add({  
  blockIsHidden: () =>  {
    if ($('div').css('display') === 'none') return true;
  }
});

function printText () {
  console.log('The block has become hidden!');
}

events.on('blockIsHidden', printText);

Check my answer here

The use of Layout Inspector tool can be very convenient when you have a complex view or you are using a third party library where you can't add an id to a view

Try:

float number mkm = (((((amountdrug/fluidvol)*1000f)/60f)*infrate)/ptwt)*1000f;
int newNum = (int) mkm;
mkm = newNum/1000f; // Will return 3 decimal places

I inspired myself from @maxisam's answer and created my own sort function and I'd though I'd share it (cuz I'm bored).

Situation I want to filter through an array of cars. The selected properties to filter are name, year, price and km. The property price and km are numbers (hence the use of .toString). I also want to control for uppercase letters (hence .toLowerCase). Also I want to be able to split up my filter query into different words (e.g. given the filter 2006 Acura, it finds matches 2006 with the year and Acura with the name).

Function I pass to filter

        var attrs = [car.name.toLowerCase(), car.year, car.price.toString(), car.km.toString()],
            filters = $scope.tableOpts.filter.toLowerCase().split(' '),
            isStringInArray = function (string, array){
                for (var j=0;j<array.length;j++){
                    if (array[j].indexOf(string)!==-1){return true;}
                }
                return false;
            };

        for (var i=0;i<filters.length;i++){
            if (!isStringInArray(filters[i], attrs)){return false;}
        }
        return true;
    };

You can also use vector::insert.

std::vector<int> v;
int a[5] = {2, 5, 8, 11, 14};

v.insert(v.end(), a, a+5);

Edit:

Of course, in real-world programming you should use:

v.insert(v.end(), a, a+(sizeof(a)/sizeof(a[0])));  // C++03
v.insert(v.end(), std::begin(a), std::end(a));     // C++11

Mostly you don't see a difference, unless you are using set -u:

/home/user1> var=""
/home/user1> echo $var

/home/user1> set -u
/home/user1> echo $var

/home/user1> unset var
/home/user1> echo $var
-bash: var: unbound variable

So really, it depends on how you are going to test the variable.

I will add that my preferred way of testing if it is set is:

[[ -n $var ]]  # True if the length of $var is non-zero

or

[[ -z $var ]]  # True if zero length

Here's what I would try first:

1) Create an interface (let's call it OnScrollTopOrBottomListener) with these methods:

void onScrollTop();

void onScrollBottom();

2) In your list's adapter, add a member instance, typed as the interface you created and supply a setter and getter.

3) In the getView() implementation of your adapter, check if the position parameter is either 0 or getCount() - 1. Also check that your OnScrollTopOrBottomListener instance is not null.

4) If the position is 0, call onScrollTopOrBottomListener.onScrollTop(). If position is getCount() - 1, call onScrollTopOrBottomListener.onScrollBottom().

5) In your OnScrollTopOrBottomListener implementation, call the appropriate methods to get the desired data.

Hope that helps in some way.

-Brandon

For functions that do not have more than 2 parameters, you can pass them without defining your own interface. For example,

class Klass {
  static List<String> foo(Integer a, String b) { ... }
}

class MyClass{

  static List<String> method(BiFunction<Integer, String, List<String>> fn){
    return fn.apply(5, "FooBar");
  }
}

List<String> lStr = MyClass.method((a, b) -> Klass.foo((Integer) a, (String) b));

In BiFunction<Integer, String, List<String>>, Integer and String are its parameters, and List<String> is its return type.

For a function with only one parameter, you can use Function<T, R>, where T is its parameter type, and R is its return value type. Refer to this page for all the interfaces that are already made available by Java.

You can use the Location Services permission to mock location...

"android.permission.ACCESS_MOCK_LOCATION"

and then in your java code,

// Set location by setting the latitude, longitude and may be the altitude...
String[] MockLoc = str.split(",");
Location location = new Location(mocLocationProvider);            
Double lat = Double.valueOf(MockLoc[0]);
location.setLatitude(lat);
Double longi = Double.valueOf(MockLoc[1]);
location.setLongitude(longi);
Double alti = Double.valueOf(MockLoc[2]);
location.setAltitude(alti);

Although MSDN says that "s" and "o" formats reflect the standard, they seem to be able to parse only a limited subset of it. Especially it is a problem if the string contains time zone specification. (Neither it does for basic ISO8601 formats, or reduced precision formats - however this is not exactly your case.) That is why I make use of custom format strings when it comes to parsing ISO8601. Currently my preferred snippet is:

static readonly string[] formats = { 
    // Basic formats
    "yyyyMMddTHHmmsszzz",
    "yyyyMMddTHHmmsszz",
    "yyyyMMddTHHmmssZ",
    // Extended formats
    "yyyy-MM-ddTHH:mm:sszzz",
    "yyyy-MM-ddTHH:mm:sszz",
    "yyyy-MM-ddTHH:mm:ssZ",
    // All of the above with reduced accuracy
    "yyyyMMddTHHmmzzz",
    "yyyyMMddTHHmmzz",
    "yyyyMMddTHHmmZ",
    "yyyy-MM-ddTHH:mmzzz",
    "yyyy-MM-ddTHH:mmzz",
    "yyyy-MM-ddTHH:mmZ",
    // Accuracy reduced to hours
    "yyyyMMddTHHzzz",
    "yyyyMMddTHHzz",
    "yyyyMMddTHHZ",
    "yyyy-MM-ddTHHzzz",
    "yyyy-MM-ddTHHzz",
    "yyyy-MM-ddTHHZ"
    };

public static DateTime ParseISO8601String ( string str )
{
    return DateTime.ParseExact ( str, formats, 
        CultureInfo.InvariantCulture, DateTimeStyles.None );
}

If you don't mind parsing TZ-less strings (I do), you can add an "s" line to greatly extend the number of covered format alterations.

If you look in the ISAPI And CGI Restrictions, and everything is already set to Allowed, then make sure that the ASP.NET v4.0.30319 handlers are even in the list. In my case they were not. This can be easy to overlook.

I added one for 32 %windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll and another for 64 bit %windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll. You can name them both the same ASP.NET v4.0.30319.

Check Allow extension path to execute.

The thing about margins is that you don't need to worry about the element's width.

Like when you give something {padding: 10px;}, you'll have to reduce the width of the element by 20px to keep the 'fit' and not disturb other elements around it.

So I generally start off by using paddings to get everything 'packed' and then use margins for minor tweaks.

Another thing to be aware of is that paddings are more consistent on different browsers and IE doesn't treat negative margins very well.

If you have lots of columns and only one is different you could do:

In[1]: grouper = df.groupby('Company Name')
In[2]: res = grouper.count()
In[3]: res['Amount'] = grouper.Amount.sum()
In[4]: res
Out[4]:
                      Organisation Name   Amount
Company Name                                   
Vifor Pharma UK Ltd                  5  4207.93

Note you can then rename the Organisation Name column as you wish.

Code Safety Note

Regarding the accepted answer, it is important to use toSerialize.GetType() instead of typeof(T) in XmlSerializer constructor: if you use the first one the code covers all possible scenarios, while using the latter one fails sometimes.

Here is a link with some example code that motivate this statement, with XmlSerializer throwing an Exception when typeof(T) is used, because you pass an instance of a derived type to a method that calls SerializeObject<T>() that is defined in the derived type's base class: http://ideone.com/1Z5J1. Note that Ideone uses Mono to execute code: the actual Exception you would get using the Microsoft .NET runtime has a different Message than the one shown on Ideone, but it fails just the same.

For the sake of completeness I post the full code sample here for future reference, just in case Ideone (where I posted the code) becomes unavailable in the future:

using System;
using System.Xml.Serialization;
using System.IO;

public class Test
{
    public static void Main()
    {
        Sub subInstance = new Sub();
        Console.WriteLine(subInstance.TestMethod());
    }

    public class Super
    {
        public string TestMethod() {
            return this.SerializeObject();
        }
    }

    public class Sub : Super
    {
    }
}

public static class TestExt {
    public static string SerializeObject<T>(this T toSerialize)
    {
        Console.WriteLine(typeof(T).Name);             // PRINTS: "Super", the base/superclass -- Expected output is "Sub" instead
        Console.WriteLine(toSerialize.GetType().Name); // PRINTS: "Sub", the derived/subclass

        XmlSerializer xmlSerializer = new XmlSerializer(typeof(T));
        StringWriter textWriter = new StringWriter();

        // And now...this will throw and Exception!
        // Changing new XmlSerializer(typeof(T)) to new XmlSerializer(subInstance.GetType()); 
        // solves the problem
        xmlSerializer.Serialize(textWriter, toSerialize);
        return textWriter.ToString();
    }
}

Visual select the text, then U for uppercase or u for lowercase. To swap all casing in a visual selection, press ~ (tilde).

Without using a visual selection, gU<motion> will make the characters in motion uppercase, or use gu<motion> for lowercase.

For more of these, see Section 3 in Vim's change.txt help file.

The quoting rules are painful. I think you want:

SELECT nextval('foo."SQ_ID"');

to prevent case-folding of SQ_ID.

Please try the following code

Uri.fromFile(new File("/sdcard/sample.jpg"))

Just remember to add quotes into the path if you have a space in your path to java home. C:\Program Files\java\javaxxx\ doesn't work but "C:\Program Files\java\javaxxx\" does.

To grant a permission:

grant select on schema_name.sequence_name to user_or_role_name;

To check which permissions have been granted

select * from all_tab_privs where TABLE_NAME = 'sequence_name'

I've always wondered how costly it is to always assume that invoke is required...

private void OnCoolEvent(CoolObjectEventArgs e)
{
  BeginInvoke((o,e) => /*do work here*/,this, e);
}

fs.exists has been deprecated since 1.0.0. You can use fs.stat instead of that.

var fs = require('fs');
fs.stat(path, (err, stats) => {
if ( !stats.isFile(filename) ) { // do this 
}  
else { // do this 
}});

Here is the link for the documentation fs.stats

Main activity class to take pick and upload

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.MediaStore;
//import android.util.Base64;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.io.ByteArrayOutputStream;
import java.util.ArrayList;


public class MainActivity extends Activity {

    Button btpic, btnup;
    private Uri fileUri;
    String picturePath;
    Uri selectedImage;
    Bitmap photo;
    String ba1;
    public static String URL = "Paste your URL here";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btpic = (Button) findViewById(R.id.cpic);
        btpic.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                clickpic();
            }
        });

        btnup = (Button) findViewById(R.id.up);
        btnup.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                upload();
            }
        });
    }

    private void upload() {
        // Image location URL
        Log.e("path", "----------------" + picturePath);

        // Image
        Bitmap bm = BitmapFactory.decodeFile(picturePath);
        ByteArrayOutputStream bao = new ByteArrayOutputStream();
        bm.compress(Bitmap.CompressFormat.JPEG, 90, bao);
        byte[] ba = bao.toByteArray();
       //ba1 = Base64.encodeBytes(ba);

        Log.e("base64", "-----" + ba1);

        // Upload image to server
        new uploadToServer().execute();

    }

    private void clickpic() {
        // Check Camera
        if (getApplicationContext().getPackageManager().hasSystemFeature(
                PackageManager.FEATURE_CAMERA)) {
            // Open default camera
            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);

            // start the image capture Intent
            startActivityForResult(intent, 100);

        } else {
            Toast.makeText(getApplication(), "Camera not supported", Toast.LENGTH_LONG).show();
        }
    }

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == 100 && resultCode == RESULT_OK) {

            selectedImage = data.getData();
            photo = (Bitmap) data.getExtras().get("data");

            // Cursor to get image uri to display

            String[] filePathColumn = {MediaStore.Images.Media.DATA};
            Cursor cursor = getContentResolver().query(selectedImage,
                    filePathColumn, null, null, null);
            cursor.moveToFirst();

            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            picturePath = cursor.getString(columnIndex);
            cursor.close();

            Bitmap photo = (Bitmap) data.getExtras().get("data");
            ImageView imageView = (ImageView) findViewById(R.id.Imageprev);
            imageView.setImageBitmap(photo);
        }
    }

    public class uploadToServer extends AsyncTask<Void, Void, String> {

        private ProgressDialog pd = new ProgressDialog(MainActivity.this);
        protected void onPreExecute() {
            super.onPreExecute();
            pd.setMessage("Wait image uploading!");
            pd.show();
        }

        @Override
        protected String doInBackground(Void... params) {

            ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
            nameValuePairs.add(new BasicNameValuePair("base64", ba1));
            nameValuePairs.add(new BasicNameValuePair("ImageName", System.currentTimeMillis() + ".jpg"));
            try {
                HttpClient httpclient = new DefaultHttpClient();
                HttpPost httppost = new HttpPost(URL);
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                HttpResponse response = httpclient.execute(httppost);
                String st = EntityUtils.toString(response.getEntity());
                Log.v("log_tag", "In the try Loop" + st);

            } catch (Exception e) {
                Log.v("log_tag", "Error in http connection " + e.toString());
            }
            return "Success";

        }

        protected void onPostExecute(String result) {
            super.onPostExecute(result);
            pd.hide();
            pd.dismiss();
        }
    }
}

php code to handle upload image and also create image from base64 encoded data

<?php
error_reporting(E_ALL);
if(isset($_POST['ImageName'])){
$imgname = $_POST['ImageName'];
$imsrc = base64_decode($_POST['base64']);
$fp = fopen($imgname, 'w');
fwrite($fp, $imsrc);
if(fclose($fp)){
 echo "Image uploaded";
}else{
 echo "Error uploading image";
}
}
?>

In my case i had some problem with opacity transition so this one fix it:

#dropdown {
    transition:.6s opacity;
}
#dropdown.ns {
    opacity:0;
    transition:.6s all;
}
#dropdown.fade {
    opacity:1;
}

Mouse Enter

$('#dropdown').removeClass('ns').addClass('fade');

Mouse Leave

$('#dropdown').addClass('ns').removeClass('fade');

If it needs to run on the onload event of the page, meaning that the document and all its assets have loaded, this needs to be in a content script embedded in each page for which you wish to track onload.

AFAIK, All of the methods currently to capture a screenshot of android use the /dev/graphics/fb0 framebuffer. This includes ddms. It does require root to read from this stream. ddms uses adbd to request the information, so root is not required as adb has the permissions needed to request the data from /dev/graphics/fb0.

The framebuffer contains 2+ "frames" of RGB565 images. If you are able to read the data, you would have to know the screen resolution to know how many bytes are needed to get the image. each pixel is 2 bytes, so if the screen res was 480x800, you would have to read 768,000 bytes for the image, since a 480x800 RGB565 image has 384,000 pixels.

Python function subset that return subset of list that adds up to a particular value

def subset(ln, tar):#ln=Lenght Of String, tar= Target
s=[ int(input('Insert Numeric Value Into List:')) for i in range(ln) ]#Inserting int Values in s of type<list>
if sum(s) < tar:#Sum of List is less than Target Value
    return
elif sum(s) == tar:#Sum of list is equal to Target Value i.e for all values combinations
    return s
elif tar in s:#Target value present in List i.e for single value
    return s[s.index(tar)]
else:#For remaining possibilities i.e for all except( single and all values combinations )
    from itertools import combinations# To check all combinations ==> itertools.combinations(list,r) OR return list of all subsets of length r
    r=[i+1 for i in range(1,ln-1)]# Taking r as only remaining value combinations, i.e. 
                                 # Except(  r=1 => for single value combinations AND r=length(list) || r=ln => For all value combinations
    lst=list()#For Storing all remaining combinations
    for i in range(len(r)):
        lst.extend(list( combinations(s,r[i]) ))
    for i in range(len(lst)):# To check remaining possibilities
        if tar == sum(lst[i]):
            return list(lst[i])

subset( int(input('Length of list:')), int(input('Target:')))

If you are using eclipse and working on a maven project, then also the above steps work.

Right-click on your root folder.

Properties -> Java Build Path -> Libraries -> Add Library -> JUnit -> Junit 3/4

Step By Step Instructions here

Since a factorial is simply degenerative multiplication from the number given down to 1, it would indeed be easier to just loop through the multiplication:

Math.factorial = function(n) {

  if (n === 0||n === 1) {

    return 1;

  } else {

    for(var i = n; i > 0; --i) { //always make sure to decrement the value BEFORE it's tacked onto the original as a product
      n *= i;
    }

    return n;

  }

}

For those who don't have ImageMagick for whatever reason, GD functions will also work, in conjunction with GhostScript. Run the ghostscript command with exec() to convert a PDF to JPG, and manipulate the resulting file with imagecreatefromjpeg().

Run the ghostscript command:

exec('gs -dSAFER -dBATCH -sDEVICE=jpeg -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r300 -sOutputFile=whatever.jpg input.pdf')

To manipulate, create a new placeholder image, $newimage = imagecreatetruecolor(...), and bring in the current image. $image = imagecreatefromjpeg('whatever.jpg'), and then you can use imagecopyresampled() to change the size, or any number of other built-in, non-imagemagick commands

Add This Two Schema locations. That's enough and Efficient instead of adding all the unnecessary schema

 http://www.springframework.org/schema/context
 http://www.springframework.org/schema/context/spring-context.xsd

I was facing the same problem and non of the above solutions helped me. In my Web Api 2 project, I had actually updated my database and had placed a unique constraint on an SQL table column. That was actually causing the problem. Simply Checking the the duplicate column values before inserting helped me fix the problem!

Try this

$xml->attributes()->Token

I had to make the following changes for the popover to position below with some overlap and to show the arrow correctly.

js

case 'bottom-right':  
    tp = {top: pos.top + pos.height + 10, left: pos.left + pos.width - 40}  
    break  

css

    .popover.bottom-right .arrow {  
      left: 20px; /* MODIFIED */  
      margin-left: -11px;  
      border-top-width: 0;  
      border-bottom-color: #999;  
      border-bottom-color: rgba(0, 0, 0, 0.25);  
      top: -11px;  
    }  
    .popover.bottom-right .arrow:after {  
      top: 1px;  
      margin-left: -10px;  
      border-top-width: 0;  
      border-bottom-color: #ffffff;  
    }  

This can be extended for arrow locations elsewhere .. enjoy!

Use a convert function to get all entries for a particular day.

Select * from tblErrorLog where convert(date,errorDate,101) = '12/20/2008'

See CAST and CONVERT for more info

SELECT  b.BatchID,
        x.XmlCol.value('(ReportHeader/OrganizationReportReferenceIdentifier)[1]','VARCHAR(100)') AS OrganizationReportReferenceIdentifier,
        x.XmlCol.value('(ReportHeader/OrganizationNumber)[1]','VARCHAR(100)') AS OrganizationNumber
FROM    Batches b
CROSS APPLY b.RawXml.nodes('/CasinoDisbursementReportXmlFile/CasinoDisbursementReport') x(XmlCol);

Demo: SQLFiddle

You can also use IHtmlHelper.GetEnumSelectList.

    // Summary:
    //     Returns a select list for the given TEnum.
    //
    // Type parameters:
    //   TEnum:
    //     Type to generate a select list for.
    //
    // Returns:
    //     An System.Collections.Generic.IEnumerable`1 containing the select list for the
    //     given TEnum.
    //
    // Exceptions:
    //   T:System.ArgumentException:
    //     Thrown if TEnum is not an System.Enum or if it has a System.FlagsAttribute.
    IEnumerable<SelectListItem> GetEnumSelectList<TEnum>() where TEnum : struct;

Below can be 2 reasons for this issue:

1. Backup taken on SQL 2012 and Restore Headeronly was done in SQL 2008 R2

2. Backup media is corrupted.

If we run below command, we can find actual error always:

restore headeronly
from disk = 'C:\Users\Public\Database.bak'

Give complete location of your database file in the quot

Hope it helps

To be pedantic, it's probably not good to hardcode either / or \ as the path separator. Maybe this would be best?

mypath = os.path.join('c:%s' % os.sep, 'sourcedir')

or

mypath = os.path.join('c:' + os.sep, 'sourcedir')

You may use a local variable, like:

    float[] values = new float[3];
    float[] v = {0.1f, 0.2f, 0.3f};
    float[] values = v;

The problem with all of these answers is they set the field to the default value even if you're trying to edit your record.

You need to set the default to your existing value and then only set it to the actual default if you don't have a value. Like so:

f.select :field, options_for_select(value_array, f.object.field || default_value)

For anyone not familiar with f.object.field you always use f.object then add your field name to the end of that.

Not sure generics are needed here. You just need a contract for your desired behavior. Doing the following is no more than what you would have to do in other languages if you wanted your own objects to behave themselves in collections, by overriding Equals() and GetHashCode() for instance.

type Identifiable interface{
    GetIdentity() string
}

func IsIdentical(this Identifiable, that Identifiable) bool{
    return (&this == &that) || (this.GetIdentity() == that.GetIdentity())
}

func contains(s []Identifiable, e Identifiable) bool {
    for _, a := range s {
        if IsIdentical(a,e) {
            return true
        }
    }
    return false
}

seems like opening a new session is the key.

see this answer.

and here is an awesome explanation about this error

tabControl1.SelectedTab = MyTab;

Here comes a powershell code I write to list size and file count for all folders under current directory. Feel free to re-use or modify per your need.

$FolderList = Get-ChildItem -Directory
foreach ($folder in $FolderList)
{
    set-location $folder.FullName
    $size = Get-ChildItem -Recurse | Measure-Object -Sum Length
    $info = $folder.FullName + "    FileCount: " + $size.Count.ToString() + "   Size: " + [math]::Round(($size.Sum / 1GB),4).ToString() + " GB"
    write-host $info
}

You can just use:

return not bool

dateDate.Ticks

should give you what you're looking for.

The value of this property represents the number of 100-nanosecond intervals that have elapsed since 12:00:00 midnight, January 1, 0001, which represents DateTime.MinValue. It does not include the number of ticks that are attributable to leap seconds.

DateTime.Ticks

If you're really looking for the Linux Epoch time (seconds since Jan 1, 1970), the accepted answer for this question should be relevant.

But if you're actually trying to "compress" a string representation of the date into an int, you should ask yourself why aren't you just storing it as a string to begin with. If you still want to do it after that, Stecya's answer is the right one. Keep in mind it won't fit into an int, you'll have to use a long.

What about something like this?

    const int x = 3000;
    const int y = 1000;

    static void Main(string[] args)
    {
        // Your scheduler
        TaskScheduler scheduler = TaskScheduler.Default;

        Task nonblockingTask = new Task(() =>
            {
                CancellationTokenSource source = new CancellationTokenSource();

                Task t1 = new Task(() =>
                    {
                        while (true)
                        {
                            // Do something
                            if (source.IsCancellationRequested)
                                break;
                        }
                    }, source.Token);

                t1.Start(scheduler);

                // Wait for task 1
                bool firstTimeout = t1.Wait(x);

                if (!firstTimeout)
                {
                    // If it hasn't finished at first timeout display message
                    Console.WriteLine("Message to user: the operation hasn't completed yet.");

                    bool secondTimeout = t1.Wait(y);

                    if (!secondTimeout)
                    {
                        source.Cancel();
                        Console.WriteLine("Operation stopped!");
                    }
                }
            });

        nonblockingTask.Start();
        Console.WriteLine("Do whatever you want...");
        Console.ReadLine();
    }

You can use the Task.Wait option without blocking main thread using another Task.

The best solution I can find is as follows:

1. Download Android Studio and SDK of your choice (Even if you think you don't need it trust me that you would need it to release the apk file and some manual changes to the android code).
2. File > New > Import , point to the location where your react native android project is.
3. If it ask you to download any specific SDK then please download the same. It can ask you to update gradle etc... Please keep on updating where required.
4. If you have an existing Android SDK and you know the version then all you have to do is match that version under build.gradle of your android project.

This is how the gradle file will look like:

If everything has gone well with your machine setup and you can compile the project using the Android Studio then nothing will stop you to build your app through react-native cli build android command.

With this approach, not only you will solve the problem of SDK, you will also resolve many issues related with your machine setup for Android development. The import will automatically find SDK location and create local.properties. Hence you don't need to worry about manual interventions.

The solution I found most useful for cropping a buffered image uses the getSubImage(x,y,w,h);

My cropping routine ended up looking like this:

  private BufferedImage cropImage(BufferedImage src, Rectangle rect) {
      BufferedImage dest = src.getSubimage(0, 0, rect.width, rect.height);
      return dest; 
   }

You can use a pseudo-element to insert that character before each list item:

ul {_x000D_
  list-style: none;_x000D_
}_x000D_
_x000D_
ul li:before {_x000D_
  content: '?';_x000D_
}

<ul>_x000D_
  <li>this is my text</li>_x000D_
  <li>this is my text</li>_x000D_
  <li>this is my text</li>_x000D_
  <li>this is my text</li>_x000D_
  <li>this is my text</li>_x000D_
</ul>

This is the solution I ultimately used:

import unicodedata

validFilenameChars = "-_.() %s%s" % (string.ascii_letters, string.digits)

def removeDisallowedFilenameChars(filename):
    cleanedFilename = unicodedata.normalize('NFKD', filename).encode('ASCII', 'ignore')
    return ''.join(c for c in cleanedFilename if c in validFilenameChars)

The unicodedata.normalize call replaces accented characters with the unaccented equivalent, which is better than simply stripping them out. After that all disallowed characters are removed.

My solution doesn't prepend a known string to avoid possible disallowed filenames, because I know they can't occur given my particular filename format. A more general solution would need to do so.

Adding custom rules is useful if you create a jQuery widget that requires custom CSS (such as extending the existing jQueryUI CSS framework for your particular widget). This solution builds on Taras's answer (the first one above).

Assuming your HTML markup has a button with an id of "addrule" and a div with an id of "target" containing some text:

jQuery code:

$( "#addrule" ).click(function () { addcssrule($("#target")); });

function addcssrule(target) 
{ 
var cssrules =  $("<style type='text/css'> </style>").appendTo("head");

cssrules.append(".redbold{ color:#f00; font-weight:bold;}"); 
cssrules.append(".newfont {font-family: arial;}"); 
target.addClass("redbold newfont");     
}       

The advantage of this approach is that you can reuse variable cssrules in your code to add or subtract rules at will. If cssrules is embedded in a persistent object such as a jQuery widget you have a persistent local variable to work with.

It is an extremely overused way to check for the success/failure of a command. Typically, the code snippet you give would be refactored as:

if grep -e ERROR ${LOG_DIR_PATH}/${LOG_NAME} > /dev/null; then
   ...
fi

(Although you can use 'grep -q' in some instances instead of redirecting to /dev/null, doing so is not portable. Many implementations of grep do not support the -q option, so your script may fail if you use it.)

In xaml

<TextBlock Text="{Binding CelsiusTemp}" />

In ViewModel, this way setting the value also works:

 public string CelsiusTemp
        {
            get { return string.Format("{0}°C", _CelsiusTemp); }
            set
            {
                value = value.Replace("°C", "");
              _CelsiusTemp = value;
            }
        }

I had this problem even after setting the config properly. git config

My scenario was issuing git command through supervisor (in Linux). On further debugging, supervisor was not reading the git config from home folder. Hence, I had to set the environment HOME variable in the supervisor config so that it can locate the git config correctly. It's strange that supervisor was not able to locate the git config just from the username configured in supervisor's config (/etc/supervisor/conf.d).

SELECT * INTO OUTFILE "c:/mydata.csv"
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
LINES TERMINATED BY "\n"
FROM my_table;

(the documentation for this is here: http://dev.mysql.com/doc/refman/5.0/en/select.html)

or:

$select = "SELECT * FROM table_name";

$export = mysql_query ( $select ) or die ( "Sql error : " . mysql_error( ) );

$fields = mysql_num_fields ( $export );

for ( $i = 0; $i < $fields; $i++ )
{
    $header .= mysql_field_name( $export , $i ) . "\t";
}

while( $row = mysql_fetch_row( $export ) )
{
    $line = '';
    foreach( $row as $value )
    {                                            
        if ( ( !isset( $value ) ) || ( $value == "" ) )
        {
            $value = "\t";
        }
        else
        {
            $value = str_replace( '"' , '""' , $value );
            $value = '"' . $value . '"' . "\t";
        }
        $line .= $value;
    }
    $data .= trim( $line ) . "\n";
}
$data = str_replace( "\r" , "" , $data );

if ( $data == "" )
{
    $data = "\n(0) Records Found!\n";                        
}

header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=your_desired_name.xls");
header("Pragma: no-cache");
header("Expires: 0");
print "$header\n$data";

I'm pretty certain it is because the DbContext is not at all thread safe. So sharing the thing is never a good idea.

Some addition to the previous answers. It is nice to regulate the density of the polygon to avoid obscuring the data points.

library(MASS)
attach(Boston)
lm.fit2 = lm(medv~poly(lstat,2))
plot(lstat,medv)
new.lstat = seq(min(lstat), max(lstat), length.out=100)
preds <- predict(lm.fit2, newdata = data.frame(lstat=new.lstat), interval = 'prediction')
lines(sort(lstat), fitted(lm.fit2)[order(lstat)], col='red', lwd=3) 
polygon(c(rev(new.lstat), new.lstat), c(rev(preds[ ,3]), preds[ ,2]), density=10, col = 'blue', border = NA)
lines(new.lstat, preds[ ,3], lty = 'dashed', col = 'red')
lines(new.lstat, preds[ ,2], lty = 'dashed', col = 'red')

Please note that you see the prediction interval on the picture, which is several times wider than the confidence interval. You can read here the detailed explanation of those two types of interval estimates.

In Android you can create shared buffer between C++ and Java (with directAlloc method) and manipulate it in both sides.

from cmd run: SVN List URL you will be provided with 3 options (r)eject, (a)ccept, (p)ermanently. enter p. This resolved issue for me

With Tomcat 7, you can add the StuckThreadDetectionValve which will enable you to identify threads that are "stuck". You can set-up the valve in the Context element of the applications where you want to do detecting:

<Context ...>
  ...
  <Valve 
    className="org.apache.catalina.valves.StuckThreadDetectionValve"
    threshold="60" />
  ...
</Context>

This would write a WARN entry into the tomcat log for any thread that takes longer than 60 seconds, which would enable you to identify the applications and ban them because they are faulty.

Based on the source code you may be able to write your own valve that attempts to stop the thread, however this would have knock on effects on the thread pool and there is no reliable way of stopping a thread in Java without the cooperation of that thread...

You can assign the any type to the object:

let bar: any = {};
bar.foo = "foobar"; 

I have the same problem, and i try it like this.

<div>
<button type='button' class='btn btn-info btn-file'>Browse</button>
<input type='file' name='image'/>
</div>

The CSS

<style>
.btn-file {
    position:absolute;
}
</style>

The JS

<script>
$(document).ready(function(){
    $('.btn-file').click(function(){
        $('input[name="image"]').click();
    });
});
</script>

Note : The button .btn-file must in the same tag as the input file

Hope you found the best solution...

1. Create a template.yml, which is your docker-compose.yml with environment variable.
2. Suppose your environment variables are in a file 'env.sh'
3. Put the below piece of code in a sh file and run it.

source env.sh; rm -rf docker-compose.yml; envsubst < "template.yml" > "docker-compose.yml";

A new file docker-compose.yml will be generated with the correct values of environment variables.

Sample template.yml file:

oracledb:
        image: ${ORACLE_DB_IMAGE}
        privileged: true
        cpuset: "0"
        ports:
                - "${ORACLE_DB_PORT}:${ORACLE_DB_PORT}"
        command: /bin/sh -c "chmod 777 /tmp/start; /tmp/start"
        container_name: ${ORACLE_DB_CONTAINER_NAME}

Sample env.sh file:

#!/bin/bash 
export ORACLE_DB_IMAGE=<image-name> 
export ORACLE_DB_PORT=<port to be exposed> 
export ORACLE_DB_CONTAINER_NAME=ORACLE_DB_SERVER

{
    "success": true,
    "data": {
        "BLR": {
            "origin": "JAI",
            "destination": "BLR",
            "price": 127,
            "transfers": 0,
            "airline": "LB",
            "flight_number": 655,
            "departure_at": "2017-06-03T18:20:00Z",
            "return_at": "2017-06-07T08:30:00Z",
            "expires_at": "2017-03-05T08:40:31Z"
        }
    }
};

object.__del__(self) is called when the instance is about to be destroyed.

>>> class Test:
...     def __del__(self):
...         print "deleted"
... 
>>> test = Test()
>>> del test
deleted

Object is not deleted unless all of its references are removed(As quoted by ethan)

Also, From Python official doc reference:

del x doesn’t directly call x.del() — the former decrements the reference count for x by one, and the latter is only called when x‘s reference count reaches zero

I'd like to point out here that that warning is there for a reason and there's a good chance the right fix is not increasing the limit but figuring out why you're adding so many listeners to the same event. Only increase the limit if you know why so many listeners are being added and are confident it's what you really want.

I found this page because I got this warning and in my case there was a bug in some code I was using that was turning the global object into an EventEmitter! I'd certainly advise against increasing the limit globally because you don't want these things to go unnoticed.

In some cases this is the best way because your code may have change something and j=i+1 won't check that.

for (int i = 0; i < list.size(); i++){  
    for (int j = 0; j < list.size(); j++) {
                if(i == j) {
               //to do code here
                    continue;
                }

}

}

Correct way to remove install plug-in from Eclipse/STS :

Go to install folder of eclipse ----> plugin --> select required plugin and remove it.

Ex-

Step 1. 
E:\springsource\sts-3.4.0.RELEASE\plugins

Step 2. 
select and remove related plugins jars.

 >>> sorted(['Some', 'words', 'sort', 'differently'], key=lambda word: word.lower())

Actually, above codes can be:

>>> sorted(['Some','words','sort','differently'],key=str.lower)

According to https://docs.python.org/2/library/functions.html?highlight=sorted#sorted, key specifies a function of one argument that is used to extract a comparison key from each list element: key=str.lower. The default value is None (compare the elements directly).

I hesitate to post this answer, it is actually technically possible but it doesn't work that well in practice. The version numbers of the CLR and the core framework assemblies were not changed in 4.5. You still target v4.0.30319 of the CLR and the framework assembly version numbers are still 4.0.0.0. The only thing that's distinctive about the assembly manifest when you look at it with a disassembler like ildasm.exe is the presence of a [TargetFramework] attribute that says that 4.5 is needed, that would have to be altered. Not actually that easy, it is emitted by the compiler.

The biggest difference is not that visible, Microsoft made a long-overdue change in the executable header of the assemblies. Which specifies what version of Windows the executable is compatible with. XP belongs to a previous generation of Windows, started with Windows 2000. Their major version number is 5. Vista was the start of the current generation, major version number 6.

.NET compilers have always specified the minimum version number to be 4.00, the version of Windows NT and Windows 9x. You can see this by running dumpbin.exe /headers on the assembly. Sample output looks like this:

OPTIONAL HEADER VALUES
             10B magic # (PE32)
            ...
            4.00 operating system version
            0.00 image version
            4.00 subsystem version              // <=== here!!
               0 Win32 version
            ...

What's new in .NET 4.5 is that the compilers change that subsystem version to 6.00. A change that was over-due in large part because Windows pays attention to that number, beyond just checking if it is small enough. It also turns on appcompat features since it assumes that the program was written to work on old versions of Windows. These features cause trouble, particularly the way Windows lies about the size of a window in Aero is troublesome. It stops lying about the fat borders of an Aero window when it can see that the program was designed to run on a Windows version that has Aero.

You can alter that version number and set it back to 4.00 by running Editbin.exe on your assemblies with the /subsystem option. This answer shows a sample postbuild event.

That's however about where the good news ends, a significant problem is that .NET 4.5 isn't very compatible with .NET 4.0. By far the biggest hang-up is that classes were moved from one assembly to another. Most notably, that happened for the [Extension] attribute. Previously in System.Core.dll, it got moved to Mscorlib.dll in .NET 4.5. That's a kaboom on XP if you declare your own extension methods, your program says to look in Mscorlib for the attribute, enabled by a [TypeForwardedTo] attribute in the .NET 4.5 version of the System.Core reference assembly. But it isn't there when you run your program on .NET 4.0

And of course there's nothing that helps you stop using classes and methods that are only available on .NET 4.5. When you do, your program will fail with a TypeLoadException or MissingMethodException when run on 4.0

Just target 4.0 and all of these problems disappear. Or break that logjam and stop supporting XP, a business decision that programmers cannot often make but can certainly encourage by pointing out the hassles that it is causing. There is of course a non-zero cost to having to support ancient operating systems, just the testing effort is substantial. A cost that isn't often recognized by management, Windows compatibility is legendary, unless it is pointed out to them. Forward that cost to the client and they tend to make the right decision a lot quicker :) But we can't help you with that.

That means that the definition of your function is not present in your program. You forgot to add that one.cpp to your program.

What "to add" means in this case depends on your build environment and its terminology. In MSVC (since you are apparently use MSVC) you'd have to add one.cpp to the project.

In more practical terms, applicable to all typical build methodologies, when you link you program, the object file created form one.cpp is missing.

If you click on the title CSS (SCSS) in CodePen (don't change the pre-processor with the gear) it will switch to the compiled CSS view.

import random
random.shuffle(array)

it's easy

every folder of those you downloaded has a different kind of roboto font, means they are different fonts

example: "roboto_regular_macroman"

to use any of them:

1- extract the folder of the font you want to use

2- upload it near the css file

3- now include it in the css file

example for including the font which called "roboto_regular_macroman":

@font-face {
font-family: 'Roboto';
src: url('roboto_regular_macroman/Roboto-Regular-webfont.eot');
src: url('roboto_regular_macroman/Roboto-Regular-webfont.eot?#iefix') format('embedded-opentype'),
     url('roboto_regular_macroman/Roboto-Regular-webfont.woff') format('woff'),
     url('roboto_regular_macroman/Roboto-Regular-webfont.ttf') format('truetype'),
     url('roboto_regular_macroman/Roboto-Regular-webfont.svg#RobotoRegular') format('svg');
font-weight: normal;
font-style: normal;
}

watch for the path of the files, here i uploaded the folder called "roboto_regular_macroman" in the same folder where the css is

then you can now simply use the font by typing font-family: 'Roboto';

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")

There is an xml attribute for it:

android:buttonTint="yourcolor"

I generally use array split because it's easier simple syntax and scales better with more than 2 partitions.

import numpy as np
partitions = 2
dfs = np.array_split(df, partitions)

np.split(df, [100,200,300], axis=0] wants explicit index numbers which may or may not be desirable.

The solution for the error is to add this line at the top of the code:

process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";

The accepted answer is invalid with the double EXEC (only need the first EXEC):

DECLARE @returnvalue int;
EXEC @returnvalue = SP_SomeProc
PRINT @returnvalue

And you still need to call PRINT (at least in Visual Studio).

Console Aliases in Windows 10

To define a console alias, use Doskey.exe to create a macro, or use the AddConsoleAlias function.

doskey

doskey test=cd \a_very_long_path\test

To also pass parameters add $* at the end: doskey short=longname $*

AddConsoleAlias

AddConsoleAlias( TEXT("test"), 
                 TEXT("cd \\<a_very_long_path>\\test"), 
                 TEXT("cmd.exe"));

More information here Console Aliases, Doskey, Parameters

Jupyter notebook

Let's say that your list name is A

Then you can code the following and you will have it as a csv file (columns only!)

R="\n".join(A)
f = open('Columns.csv','w')
f.write(R)
f.close()

Joshua P Nixon's answer is correct but I had to set last modified date also. so here is the code.

var file = new File([blob], "file_name", {lastModified: 1534584790000});

1534584790000 is an unix timestamp for "GMT: Saturday, August 18, 2018 9:33:10 AM"

Check this link . You were missing . before myButton. It was a small error. :)

.myButton{
    background:url(./images/but.png) no-repeat;
    cursor:pointer;
    border:none;
    width:100px;
    height:100px;
}

.myButton:active  /* use Dot here */
{   
    background:url(./images/but2.png) no-repeat;
}

ON Xcode 6 Your try

     self.layer.layer.cornerRadius = 5.0f;

or

    self.layer.layer.cornerRadius = 5.0f;
    self.layer.clipsToBounds = YES;

Here's a neat little workaround:

You can use a Greek Lower Numeral Sign instead (U+0375)

It looks like this ?

Using this method saves you a lot of resources too...

i'm impressed of the deep discussion.

my 2 cents:

from datetime import datetime import time

the timestamp in utc is:

timestamp = \
(datetime.utcnow() - datetime(1970,1,1)).total_seconds()

or,

timestamp = time.time()

if now results from datetime.now(), in the same DST

utcoffset = (datetime.now() - datetime.utcnow()).total_seconds()
timestamp = \
(now - datetime(1970,1,1)).total_seconds() - utcoffset

While @nickf's answer works. If you don't care for older browsers, you can use this pure Javascript version. Works in IE9+, and others

var rect = el.getBoundingClientRect();

var position = {
  top: rect.top + window.pageYOffset,
  left: rect.left + window.pageXOffset
};

For Apache 2.4.2: I was getting 403: Forbidden continuously when I was trying to access WAMP on my Windows 7 desktop from my iPhone on WiFi. On one blog, I found the solution - add Require all granted after Allow all in the <Directory> section. So this is how my <Directory> section looks like inside <VirtualHost>

<Directory "C:/wamp/www">
    Options Indexes FollowSymLinks MultiViews Includes ExecCGI
    AllowOverride All
    Order Allow,Deny
    Allow from all
    Require all granted
</Directory>

Beware of properties inherited from the object's prototype (which could happen if you're including any libraries on your page, such as older versions of Prototype). You can check for this by using the object's hasOwnProperty() method. This is generally a good idea when using for...in loops:

var user = {};

function setUsers(data) {
    for (var k in data) {
        if (data.hasOwnProperty(k)) {
           user[k] = data[k];
        }
    }
}

You shouldn't need to configure the consumes or produces attribute at all. Spring will automatically serve JSON based on the following factors.

• The accepts header of the request is application/json
• @ResponseBody annotated method
• Jackson library on classpath

You should also follow Wim's suggestion and define your controller with the @RestController annotation. This will save you from annotating each request method with @ResponseBody

Another benefit of this approach would be if a client wants XML instead of JSON, they would get it. They would just need to specify xml in the accepts header.

I have found an FTP server and its working. I was successfully able to upload a file to this FTP server and then see file created by hitting same url. Visit here and read properly before use. Good luck...!

Edit: link is now dead, but the FTP server is still up! Connect with the username "anonymous" and an email address as a password: ftp://ftp.swfwmd.state.fl.us

BUT FIRST read this before using it

I think this should be what you want:

System.Reflection.Assembly.GetEntryAssembly().Location

This returns the assembly that was first loaded when the process started up, which would seem to be what you want.

GetCallingAssembly won't necessarily return the assembly you want in the general case, since it returns the assembly containing the method immediately higher in the call stack (i.e. it could be in the same DLL).

If you are using formik in your project it has some easy way to handle this stuff. Here is the most easiest way to do with formik.

First set your initial values inside the formik initivalues attribute or in the react. state

Here, the initial values is define in react state

   state = { 
     data: {
        fy: {
            active: "N"
        }
     }
   }

define above initialValues for formik field inside formik initiValues attribute

<Formik
 initialValues={this.state.data}
 onSubmit={(values, actions)=> {...your actions goes here}}
>
{({ isSubmitting }) => (
  <Form>
    <Field type="checkbox" name="fy.active" onChange={(e) => {
      const value = e.target.checked;
      if(value) setFieldValue('fy.active', 'Y')
      else setFieldValue('fy.active', 'N')
    }}/>
  </Form>
)}
</Formik>

Make a console to the check the state updated into string instead of booleanthe formik setFieldValue function to set the state or go with react debugger tool to see the changes iniside formik state values.

This is very good question but not as wanting as question. There is difference between 'self' and 'cls' used method though analogically they are at same place

def moon(self, moon_name):
    self.MName = moon_name

#but here cls method its use is different 

@classmethod
def moon(cls, moon_name):
    instance = cls()
    instance.MName = moon_name

Now you can see both are moon function but one can be used inside class while other function name moon can be used for any class.

For practical programming approach :

While designing circle class we use area method as cls instead of self because we don't want area to be limited to particular class of circle only .

You need to make a class library and not a Console Application. The console application is translated into an .exe whereas the class library will then be compiled into a dll which you can reference in your windows project.

• Right click on your Console Application -> Properties -> Change the Output type to Class Library

In CSS3:

input[type=radio] {content:url(mycheckbox.png)}
input[type=radio]:checked {content:url(mycheckbox-checked.png)}

In reality:

<span class=fakecheckbox><input type=radio><img src="checkbox.png" alt=""></span>

@media screen {.fakecheckbox img {display:none}}
@media print {.fakecheckbox input {display:none;}}

and you'll need Javascript to keep <img> and radios in sync (and ideally insert them there in a first place).

I've used <img>, because browsers are usually configured not to print background-image. It's better to use image than another control, because image is non-interactive and less likely to cause problems.

Wouldn't that just be something like this:

Textbox myTxtbx = new Textbox();
myTxtbx.Text = "Enter text here...";

myTxtbx.GotFocus += GotFocus.EventHandle(RemoveText);
myTxtbx.LostFocus += LostFocus.EventHandle(AddText);

public void RemoveText(object sender, EventArgs e)
{
    if (myTxtbx.Text == "Enter text here...") 
    {
     myTxtbx.Text = "";
    }
}

public void AddText(object sender, EventArgs e)
{
    if (string.IsNullOrWhiteSpace(myTxtbx.Text))
        myTxtbx.Text = "Enter text here...";
}

Thats just pseudocode but the concept is there.

Try this, but i don't sure that will work every where :)

public enum MyEnum {
    A("Start There"),
    B("Start Here");

    MyEnum(String name) {
        try {
            Field fieldName = getClass().getSuperclass().getDeclaredField("name");
            fieldName.setAccessible(true);
            fieldName.set(this, name);
            fieldName.setAccessible(false);
        } catch (Exception e) {}
    }
}

If you encrypt the PDF you can control how printable and changeable it is.

Print settings:

1. None
2. Low res (150 dpi)
3. high res (max dpi)

You can also prevent folks from copying/pasting from your PDF, and even do that while allowing screen readers access (visually impaired folks can still read your PDFs).

You haven't mentioned what you're using to build the PDFs so the details are up to you.

Alternative: You can create annotations that are only visible when printing. Create a solid box over the entire page that only shows up when printed -> No useful printing.

You might be able to do the same thing with layers (Optional Content Groups) as well, not sure.

There are two reasons to pass an argument by reference: (1) for performance (in which case you want to pass by const reference) and (2) because you need the ability to change the value of the argument inside the function.

I highly doubt that passing an unsigned long on modern architectures is slowing you down too much. So I'm assuming that you're intending to change the value of State inside the method. The compiler is complaining because the constant 0 cannot be changed, as it's an rvalue ("non-lvalue" in the error message) and unchangeable (const in the error message).

Simply put, you want a method that can change the argument passed, but by default you want to pass an argument that can't change.

To put it another way, non-const references have to refer to actual variables. The default value in the function signature (0) is not a real variable. You're running into the same problem as:

struct Foo {
    virtual ULONG Write(ULONG& State, bool sequence = true);
};

Foo f;
ULONG s = 5;
f.Write(s); // perfectly OK, because s is a real variable
f.Write(0); // compiler error, 0 is not a real variable
            // if the value of 0 were changed in the function,
            // I would have no way to refer to the new value

If you don't actually intend to change State inside the method you can simply change it to a const ULONG&. But you're not going to get a big performance benefit from that, so I would recommend changing it to a non-reference ULONG. I notice that you are already returning a ULONG, and I have a sneaky suspicion that its value is the value of State after any needed modifications. In which case I would simply declare the method as so:

// returns value of State
virtual ULONG Write(ULONG State = 0, bool sequence = true);

Of course, I'm not quite sure what you're writing or to where. But that's another question for another time.

This is kinda ugly, but its the first thing that popped in my head. This also should allow you to pass in arguments:

eval('var myfunc = ' + variable);  myfunc(args, ...);

If you don't need to pass in arguments this might be simpler.

eval(variable + '();');

Standard dry-code warning applies.

Just one command did the work

netsh http add iplisten 127.0.0.1

You can only return non-local objects by reference. The destructor may have invalidated some internal pointer, or whatever.

Don't be afraid of returning values -- it's fast!

I think You are using //--style="display:none"--// for hiding the div.

Use this code:

<script>
    function klikaj(i) {
        document.getElementById(i).style.display = 'block';
    }
</script>
<div id="thumb0" class="thumbs" onclick="klikaj('rad1')">Click Me..!</div>
<div id="rad1" class="thumbs" style="display:none">Helloooooo</div>

Hexidecimal color codes are already rgb. The format is #RRGGBB

The way I usually do it, is with the following css:

div#submitForm input {
  background: url("../images/buttonbg.png") no-repeat scroll 0 0 transparent;
  color: #000000;
  cursor: pointer;
  font-weight: bold;
  height: 20px;
  padding-bottom: 2px;
  width: 75px;
}

and the markup:

<div id="submitForm">
    <input type="submit" value="Submit" name="submit">
</div>

If things look different in the various browsers I implore you to use a reset style sheet which sets all margins, padding and maybe even borders to zero.

%s will get all the values until it gets NULL i.e. '\0'.

char str1[] = "This is the end\0";
printf("%s",str1);

will give

This is the end

char str2[] = "this is\0 the end\0";
printf("%s",str2);

will give

this is

SIMPLE ANSWER:

   onclick="functionName(ID.value);

Where ID is the ID of the input field.

Write your own convert.

public class ReverseBooleanToVisibilityConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
   {
       // your converter code here
   }
}

To answer the question whether there is any caching going on.

I investigated this point further by running a stand-alone Java application that continuously loaded a file from disk using the getResourceAsStream ClassLoader method. I was able to edit the file, and the changes were reflected immediately, i.e., the file was reloaded from disk without caching.

However: I'm working on a project with several maven modules and web projects that have dependencies on each other. I'm using IntelliJ as my IDE to compile and run the web projects.

I noticed that the above seemed to no longer hold true, the reason being that the file that I was being loaded is now baked into a jar and deployed to the depending web project. I only noticed this after trying to change the file in my target folder, to no avail. This made it seem as though there was caching going on.

Something important has been said by Tom:

if you use the has-a concept, you avoid the issue.

Indeed, if instead of using extends and implements you define two attributes, one of type rectangle, one of type JLabel in your Tile class, then you can define a Rectangle to be either an interface or a class.

Furthermore, I would normally encourage the use of interfaces in connection with has-a, but I guess it would be an overkill in your situation. However, you are the only one that can decide on this point (tradeoff flexibility/over-engineering).

Update for the new 64bit arch

Ranges:
CHAR_MIN:   -128
CHAR_MAX:   127
SHRT_MIN:   -32768
SHRT_MAX:   32767
INT_MIN:    -2147483648
INT_MAX:    2147483647
LONG_MIN:   -9223372036854775808
LONG_MAX:   9223372036854775807
ULONG_MAX:  18446744073709551615
LLONG_MIN:  -9223372036854775808
LLONG_MAX:  9223372036854775807
ULLONG_MAX: 18446744073709551615

This was driving me bonkers as the .astype() solution above didn't work for me. But I found another way. Haven't timed it or anything, but might work for others out there:

t1 = pd.to_datetime('1/1/2015 01:00')
t2 = pd.to_datetime('1/1/2015 03:30')

print pd.Timedelta(t2 - t1).seconds / 3600.0

...if you want hours. Or:

print pd.Timedelta(t2 - t1).seconds / 60.0

...if you want minutes.

You can try my ServiceStack JsonSerializer it's the fastest .NET JSON serializer at the moment. It supports serializing DataContract's, Any POCO Type, Interfaces, Late-bound objects including anonymous types, etc.

Basic Example

var customer = new Customer { Name="Joe Bloggs", Age=31 };
var json = customer.ToJson();
var fromJson = json.FromJson<Customer>(); 

Note: Only use Microsofts JavaScriptSerializer if performance is not important to you as I've had to leave it out of my benchmarks since its up to 40x-100x slower than the other JSON serializers.

Short and sweet

I'm not sure why none of the previous answers worked for me, but I came up with this solution during a eureka moment. It not only works, but it is also most elegant:

Add to body tag:

onmouseup="down=0;" onmousedown="down=1;"

Then test and execute myfunction() if down equals 1:

onmousemove="if (down==1) myfunction();"

git reset --hard HEAD^ 

Use the above command to revert merge changes.

Practically speaking size_t represents the number of bytes you can address. On most modern architectures for the last 10-15 years that has been 32 bits which has also been the size of a unsigned int. However we are moving to 64bit addressing while the uint will most likely stay at 32bits (it's size is not guaranteed in the c++ standard). To make your code that depends on the memory size portable across architectures you should use a size_t. For example things like array sizes should always use size_t's. If you look at the standard containers the ::size() always returns a size_t.

Also note, visual studio has a compile option that can check for these types of errors called "Detect 64-bit Portability Issues".

If you use Kotlin, you can add an extension method to Image in the same manner Sri Harsha Chilakapati suggests.

fun Image.toBufferedImage(): BufferedImage {
    if (this is BufferedImage) {
        return this
    }
    val bufferedImage = BufferedImage(this.getWidth(null), this.getHeight(null), BufferedImage.TYPE_INT_ARGB)

    val graphics2D = bufferedImage.createGraphics()
    graphics2D.drawImage(this, 0, 0, null)
    graphics2D.dispose()

    return bufferedImage
}

And use it like this:

myImage.toBufferedImage()

i have same problem what i did i just downloaded 32-bit dll and added it to my bin folder this is solved my problem

Try to add the controller to your index page aswell. Just looked at as similar structure on one of my own site and I hade my base url set to = "somedomain.com/v2/controller"

This is to merge selected columns from two tables.

If table_1 contains t1_a,t1_b,t1_c..,id,..t1_z columns, and table_2 contains t2_a, t2_b, t2_c..., id,..t2_z columns, and only t1_a, id, t2_a are required in the final table, then

mergedCSV = table_1[['t1_a','id']].merge(table_2[['t2_a','id']], on = 'id',how = 'left')
# save resulting output file    
mergedCSV.to_csv('output.csv',index = False)

In my (limited) experience,

- (CGSize)sizeWithFont:(UIFont *)font forWidth:(CGFloat)width lineBreakMode:(UILineBreakMode)lineBreakMode

does not respect newline characters, so you can end up with a lot shorter CGSize than is actually required.

- (CGSize)sizeWithFont:(UIFont *)font constrainedToSize:(CGSize)size

does seem to respect the newlines.

Also, the text isn't actually rendered at the top of the UITextView. In my code, I set the new height of the UITextView to be 24 pixels larger than the height returned by the sizeOfFont methods.

Warning! SQL Server 14 Express, SQL Server Management Studio, and SQL 2014 LocalDB are separate downloads, make sure you actually installed SQL Server and not just the Management Studio! SQL Server 14 express with LocalDB download link

Youtube video about entire process.
Writeup with pictures about installing SQL Server

How to select a local server:

When you are asked to connect to a 'database server' right when you open up SQL Server Management Studio do this:

1) Make sure you have Server Type: Database

2) Make sure you have Authentication: Windows Authentication (no username & password)

3) For the server name field look to the right and select the drop down arrow, click 'browse for more'

4) New window pops up 'Browse for Servers', make sure to pick 'Local Servers' tab and under 'Database Engine' you will have the local server you set up during installation of SQL Server 14

How do I create a local database inside of Microsoft SQL Server 2014?

1) After you have connected to a server, bring up the Object Explorer toolbar under 'View' (Should open by default)

2) Now simply right click on 'Databases' and then 'Create new Database' to be taken through the database creation tools!

SELECT  FROM_UNIXTIME(mycolumn)
FROM    mytable

You're missing #include <stdlib.h>.

If you have some column in SELECT clause , how will it select it if there is several rows ? so yes , every column in SELECT clause should be in GROUP BY clause also , you can use aggregate functions in SELECT ...

you can have column in GROUP BY clause which is not in SELECT clause , but not otherwise

This should work:

img {
    max-width: 50%;
    height: auto;
}

Cast the operands to floats:

float ans = (float)a / (float)b;

Note that, since git 1.8.3 (April, 22d 2013):

"git count-objects" learned "--human-readable" aka "-H" option to show various large numbers in Ki/Mi/GiB scaled as necessary.

That could be combined with the -v option mentioned by Jack Morrison in his answer.

git gc
git count-objects -vH

(git gc is important, as mentioned by A-B-B's answer)

Plus (still git 1.8.3), the output is more complete:

"git count-objects -v" learned to report leftover temporary packfiles and other garbage in the object store.

http://docs.oracle.com/javase/7/docs/api/java/lang/String.html#intern()

Basically doing String.intern() on a series of strings will ensure that all strings having same contents share same memory. So if you have list of names where 'john' appears 1000 times, by interning you ensure only one 'john' is actually allocated memory.

This can be useful to reduce memory requirements of your program. But be aware that the cache is maintained by JVM in permanent memory pool which is usually limited in size compared to heap so you should not use intern if you don't have too many duplicate values.

More on memory constraints of using intern()

On one hand, it is true that you can remove String duplicates by internalizing them. The problem is that the internalized strings go to the Permanent Generation, which is an area of the JVM that is reserved for non-user objects, like Classes, Methods and other internal JVM objects. The size of this area is limited, and is usually much smaller than the heap. Calling intern() on a String has the effect of moving it out from the heap into the permanent generation, and you risk running out of PermGen space.

-- From: http://www.codeinstructions.com/2009/01/busting-javalangstringintern-myths.html

From JDK 7 (I mean in HotSpot), something has changed.

In JDK 7, interned strings are no longer allocated in the permanent generation of the Java heap, but are instead allocated in the main part of the Java heap (known as the young and old generations), along with the other objects created by the application. This change will result in more data residing in the main Java heap, and less data in the permanent generation, and thus may require heap sizes to be adjusted. Most applications will see only relatively small differences in heap usage due to this change, but larger applications that load many classes or make heavy use of the String.intern() method will see more significant differences.

-- From Java SE 7 Features and Enhancements

Update: Interned strings are stored in main heap from Java 7 onwards. http://www.oracle.com/technetwork/java/javase/jdk7-relnotes-418459.html#jdk7changes

About the differences, there is an important one in the results between querySelectorAll and getElementsByClassName: the return value is different. querySelectorAll will return a static collection, while getElementsByClassName returns a live collection. This could lead to confusion if you store the results in a variable for later use:

• A variable generated with querySelectorAll will contain the elements that fulfilled the selector at the moment the method was called.
• A variable generated with getElementsByClassName will contain the elements that fulfilled the selector when it is used (that may be different from the moment the method was called).

For example, notice how even if you haven't reassigned the variables aux1 and aux2, they contain different values after updating the classes:

// storing all the elements with class "blue" using the two methods_x000D_
var aux1 = document.querySelectorAll(".blue");_x000D_
var aux2 = document.getElementsByClassName("blue");_x000D_
_x000D_
// write the number of elements in each array (values match)_x000D_
console.log("Number of elements with querySelectorAll = " + aux1.length);_x000D_
console.log("Number of elements with getElementsByClassName = " + aux2.length);_x000D_
_x000D_
// change one element's class to "blue"_x000D_
document.getElementById("div1").className = "blue";_x000D_
_x000D_
// write the number of elements in each array (values differ)_x000D_
console.log("Number of elements with querySelectorAll = " + aux1.length);_x000D_
console.log("Number of elements with getElementsByClassName = " + aux2.length);

.red { color:red; }_x000D_
.green { color:green; }_x000D_
.blue { color:blue; }

<div id="div0" class="blue">Blue</div>_x000D_
<div id="div1" class="red">Red</div>_x000D_
<div id="div2" class="green">Green</div>

Another awk solution and limited input with the size of memory you have.

awk '{ for (i=1; i<=NF; i++) RtoC[i]= (RtoC[i]? RtoC[i] FS $i: $i) }
    END{ for (i in RtoC) print RtoC[i] }' infile

This joins each same filed number positon into together and in END prints the result that would be first row in first column, second row in second column, etc. Will output:

X row1 row2 row3 row4
column1 0 3 6 9
column2 1 4 7 10
column3 2 5 8 11

In Oracle, something like this works nicely to separate your counting and ordering a little better. I'm not sure if it will work in MySql 4.

select 'Tag', counts.cnt
from
  (
  select count(*) as cnt, 'Tag'
  from 'images-tags'
  group by 'tag'
  ) counts
order by counts.cnt desc

If I understand correctly, you want to know how to convert bytes encoded as a hex string to its form as an ASCII text, like "537461636B" would be converted to "Stack", in such case then the following code should solve your problem.

Have not run any benchmarks but I assume it is not the peak of efficiency.

static char ByteToAscii(const char *input) {
  char singleChar, out;
  memcpy(&singleChar, input, 2);
  sprintf(&out, "%c", (int)strtol(&singleChar, NULL, 16));
  return out;
}

int HexStringToAscii(const char *input, unsigned int length,
                            char **output) {
  int mIndex, sIndex = 0;
  char buffer[length];
  for (mIndex = 0; mIndex < length; mIndex++) {
    sIndex = mIndex * 2;
    char b = ByteToAscii(&input[sIndex]);
    memcpy(&buffer[mIndex], &b, 1);
  }
  *output = strdup(buffer);
  return 0;
}

Initially I tried the Fusion log viewer, but that didn't help so I ended up using WinDbg with the SOS extension.

!dumpheap -stat -type Exception /D

Then I examined the FileNotFoundExceptions. The message in the exception contained the name of the DLL that wasn't loading.

N.B., the /D give you hyperlinked results, so click on the link in the summary for FileNotFoundException. That will bring up a list of the exceptions. Then click on the link for one of the exceptions. That will !dumpobject that exceptions. Then you should just be able to click on the link for Message in the exception object, and you'll see the text.

For those who need to work with money format in the text fields:

To use only: , (comma) and . (period)

and block the symbol: - (hyphen, minus or dash)

as well as the: ? (blank space)

In your TextField, just set the following code:

keyboardType: TextInputType.numberWithOptions(decimal: true),
inputFormatters: [BlacklistingTextInputFormatter(new RegExp('[\\-|\\ ]'))],

The simbols hyphen and space will still appear in the keyboard, but will become blocked.

You can use:

NOW() + INTERVAL 1 DAY

If you are only interested in the date, not the date and time then you can use CURDATE instead of NOW:

CURDATE() + INTERVAL 1 DAY

Presuming that you have installed: bash, pwd, dirname, echo; then relpath is

#!/bin/bash
s=$(cd ${1%%/};pwd); d=$(cd $2;pwd); b=; while [ "${d#$s/}" == "${d}" ]
do s=$(dirname $s);b="../${b}"; done; echo ${b}${d#$s/}

I've golfed the answer from pini and a few other ideas

Note: This requires both paths to be existing folders. Files will not work.

From a posting by Matz:

(1) ++ and -- are NOT reserved operator in Ruby.

(2) C's increment/decrement operators are in fact hidden assignment. They affect variables, not objects. You cannot accomplish assignment via method. Ruby uses +=/-= operator instead.

(3) self cannot be a target of assignment. In addition, altering the value of integer 1 might cause severe confusion throughout the program.

                      matz.

This uses twitter bootstrap 3.x with one css class to get labels to sit on top of the inputs. Here's a fiddle link, make sure to expand results panel wide enough to see effect.

HTML:

  <div class="row myform">
     <div class="col-md-12">
        <form name="myform" role="form" novalidate>
           <div class="form-group">
              <label class="control-label" for="fullName">Address Line</label>
              <input required type="text" name="addr" id="addr" class="form-control" placeholder="Address"/>
           </div>

           <div class="form-inline">
              <div class="form-group">
                 <label>State</label>
                 <input required type="text" name="state" id="state" class="form-control" placeholder="State"/>
              </div>

              <div class="form-group">
                 <label>ZIP</label>
                 <input required type="text" name="zip" id="zip" class="form-control" placeholder="Zip"/>
              </div>
           </div>

           <div class="form-group">
              <label class="control-label" for="country">Country</label>
              <input required type="text" name="country" id="country" class="form-control" placeholder="country"/>
           </div>
        </form>
     </div>
  </div>

CSS:

.myform input.form-control {
   display: block;  /* allows labels to sit on input when inline */
   margin-bottom: 15px; /* gives padding to bottom of inline inputs */
}

You can use Delorean to travel in space and time!

import datetime
import delorean
dt = datetime.datetime.utcnow()
delorean.Delorean(dt, timezone="UTC").epoch

http://delorean.readthedocs.org/en/latest/quickstart.html  

It also works without jQuery if you do the following changes:

1. Add type="button" to the edit button in order not to trigger submission of the form.

2. Change the name of your function from change() to anything else.

3. Don't use hidden="hidden", use CSS instead: style="display: none;".

The following code works for me:

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="STYLESHEET" type="text/css" href="dba_style/buttons.css" />
<title>Untitled Document</title>
</head>
<script type="text/javascript">
function do_change(){
document.getElementById("save").style.display = "block";
document.getElementById("change").style.display = "block";
document.getElementById("cancel").style.display = "block";
}
</script>
<body>
<form name="form1" method="post" action="">
<div class="buttons">

<button type="button" class="regular" name="edit" id="edit" onclick="do_change(); return false;">
    <img src="dba_images/textfield_key.png" alt=""/>
    Edit
</button>

<button type="submit" class="positive" name="save" id="save" style="display:none;">
    <img src="dba_images/apply2.png" alt=""/>
    Save
</button>

<button class="regular" name="change" id="change" style="display:none;">
    <img src="dba_images/textfield_key.png" alt=""/>
    change
</button>

    <button class="negative" name="cancel" id="cancel" style="display:none;">
        <img src="dba_images/cross.png" alt=""/>
        Cancel
    </button>
</div>
</form>
</body>
</html>

I am taking an example of date given below and print two different format of dates according to your requirements.

String date="01/10/2014 05:54:00 PM";

SimpleDateFormat simpleDateFormat=new SimpleDateFormat("dd/MM/yyyy hh:mm:ss aa",Locale.getDefault());

try {
            Log.i("",""+new SimpleDateFormat("ddMMyyyyHHmmss",Locale.getDefault()).format(simpleDateFormat.parse(date)));

            Log.i("",""+new SimpleDateFormat("dd/MM/yyyy HH:mm:ss",Locale.getDefault()).format(simpleDateFormat.parse(date)));

        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

If you still have any query, Please respond. Thanks.

Here is step-by-step instruction for Tomcat configuration in IntellijIdea:

1) Create IntellijIdea project via WebApplication template. Idea should be Ultimate version, not Community edition

2) Go to Run-Edit configutaion and set up Tomcat location folder, so Idea will know about your tomcat server

3) Go to Deployment tab and select Artifact. Apply

4) In src folder put your servlet (you can try my example for testing purpose)

5) Go to web.xml file and link your's servlet like this

6) In web folder put your's .jsp files (for example hey.jsp)

7) Now you can start you app via IntellijIdea. Run(Shift+F10) and enjoy your app in browser:

- to jsp files: http://localhost:8080/hey.jsp (or index.jsp by default)

- to servlets via virtual link you set in web.xml : http://localhost:8080/st

Given this route

app.get('/hi/:param1', function(req,res){} );

and given this URL http://www.google.com/hi/there?qs1=you&qs2=tube

You will have:

req.query

{
  qs1: 'you',
  qs2: 'tube'
}

req.params

{
  param1: 'there'
}

Express req.params >>

Mixin for Less

.appearance (@value: none) {
    -webkit-appearance:     @value;
    -moz-appearance:        @value;
    -ms-appearance:         @value;
    -o-appearance:          @value;
    appearance:             @value;
}

Go to the SQL Server Management Studio, navigate to Security, go to Logins and right click it. A Menu will come up with a button saying "New Login". There you will be able to add users and/or groups from Active Directory to your SQL Server "permissions". Hope this helps

#!/bin/sh
# http://www.tldp.org/LDP/abs/html/io-redirection.html
echo "Hello World"
exec > script.log 2>&1
echo "Start logging out from here to a file"
bad command
echo "End logging out from here to a file"
exec > /dev/tty 2>&1 #redirects out to controlling terminal
echo "Logged in the terminal"

Output:

> ./above_script.sh                                                                
Hello World
Not logged in the file
> cat script.log
Start logging out from here to a file
./logging_sample.sh: line 6: bad: command not found
End logging out from here to a file

Read more here: http://www.tldp.org/LDP/abs/html/io-redirection.html

As another guy described here, all you need to do is add

height: 100vh;

to the style of whatever you need to fill the screen

I was searching for a simple solution without window focus. Jayk's answer, pynput, works perfect for me. Here is the example how I use it.

from pynput import keyboard

def on_press(key):
    if key == keyboard.Key.esc:
        return False  # stop listener
    try:
        k = key.char  # single-char keys
    except:
        k = key.name  # other keys
    if k in ['1', '2', 'left', 'right']:  # keys of interest
        # self.keys.append(k)  # store it in global-like variable
        print('Key pressed: ' + k)
        return False  # stop listener; remove this if want more keys

listener = keyboard.Listener(on_press=on_press)
listener.start()  # start to listen on a separate thread
listener.join()  # remove if main thread is polling self.keys

To print a schema, I use jade and do an export to a file of the database then bring it into word to format and print

Try this query.. It uses the Analytic function SUM:

SELECT * FROM
(  
 SELECT SUM(1) OVER(PARTITION BY ctn_no) cnt, A.*
 FROM table1 a 
 WHERE s_ind ='Y'   
)
WHERE cnt > 2

Am not sure why you are identifying a record as a duplicate if the ctn_no repeats more than 2 times. FOr me it repeats more than once it is a duplicate. In this case change the las part of the query to WHERE cnt > 1

It’s easy; just do the following:

rvm implode

or

rm -rf ~/.rvm

And don’t forget to remove the script calls in the following files:

• ~/.bashrc
• ~/.bash_profile
• ~/.profile

And maybe others depending on whatever shell you’re using.

This may seem bizarre, but it's worked for me and I have written a C# program to automate this.

Step 1: Truncate the transaction log (Back up only the transaction log, turning on the option to remove inactive transactions)

Step 2: Run a database shrink, moving all the pages to the start of the files

Step 3: Truncate the transaction log again, as step 2 adds log entries

Step 4: Run a database shrink again.

My stripped down code, which uses the SQL DMO library, is as follows:

SQLDatabase.TransactionLog.Truncate();
SQLDatabase.Shrink(5, SQLDMO.SQLDMO_SHRINK_TYPE.SQLDMOShrink_NoTruncate);
SQLDatabase.TransactionLog.Truncate();
SQLDatabase.Shrink(5, SQLDMO.SQLDMO_SHRINK_TYPE.SQLDMOShrink_Default);

I wrote a tree library that plays nicely with Java8 and that has no other dependencies. It also provides a loose interpretation of some ideas from functional programming and lets you map/filter/prune/search the entire tree or subtrees.

https://github.com/RutledgePaulV/prune

The implementation doesn't do anything special with indexing and I didn't stray away from recursion, so it's possible that with large trees performance will degrade and you could blow the stack. But if all you need is a straightforward tree of small to moderate depth, I think it works well enough. It provides a sane (value based) definition of equality and it also has a toString implementation that lets you visualize the tree!