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Java time-based map/cache with expiring keys [closed]
...l.concurrent.ConcurrentHashMap;
/**
*
* @author Vivekananthan M
*
* @param <K>
* @param <V>
*/
public class WeakConcurrentHashMap<K, V> extends ConcurrentHashMap<K, V> {
private static final long serialVersionUID = 1L;
private Map<K, Long> timeMap = ne...
Convert Bitmap to File
...r visible
}
@Override
protected String doInBackground(Void... params) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
file = new File(Environment.getExternalStorageDirectory() + File.separator...
How to update only one field using Entity Framework?
...ChangesWithoutValidation();
}
"As you can see, it takes as its second parameter an expression of a
function. This will let use this method by specifying in a Lambda
expression which property to update."
...Update(Model, d=>d.Name);
//or
...Update(Model, d=>d.Name, d=>d.SecondProp...
Prevent nginx 504 Gateway timeout using PHP set_time_limit()
...pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_read_timeout 180;
include fastcgi_params;
}
Now just restart php-fpm and nginx and there should be no more timeouts for requests taking less than ...
In Rails, how do you render JSON using a view?
...
To summarize, it's just
# users contoller
def show
@user = User.find( params[:id] )
respond_to do |format|
format.html
format.json
end
end
and
/* views/users/show.json.erb */
{
"name" : "<%= @user.name %>"
}
...
How to check type of files without extensions in python?
...9db0e31f9dfc11cf47') # You can pass a file name or a file object as first param. See doc for optional 2nd param.
'png'
Python 2 imghdr doc
Python 3 imghdr doc
share
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...
How do I trigger the success callback on a model.save()?
...some .set()s - why the attribute list? (3) In the docs, the attribute list param is shown as optional. Can you clarify? Thanks.
– UpTheCreek
Sep 21 '11 at 13:19
7
...
How to wait until an element exists?
... function once specified
* element is inserted into the DOM
* @param {function|string} handler
* A function to execute at the time when the element is inserted or
* string "remove" to remove the listener from the given selector
* @param {bool} shouldRunHandlerO...
How do I get the current GPS location programmatically in Android?
...thod modify the last know good location according to the arguments.
*
* @param location The possible new location.
*/
void makeUseOfNewLocation(Location location) {
if ( isBetterLocation(location, currentBestLocation) ) {
currentBestLocation = location;
}
}
....
/** Determines w...
How do I force Postgres to use a particular index?
...r, useful for testing, you can use the enable_seqscan and enable_indexscan parameters. See:
Examining index usage
enable_ parameters
These are not suitable for ongoing production use. If you have issues with query plan choice, you should see the documentation for tracking down query performance ...