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Programmatically change log level in Log4j2
...gger level (not the root logger or loggers configured in the configuration file) you can do this:
public static void setLevel(Logger logger, Level level) {
final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
final Configuration config = ctx.getConfiguration();
Logge...
How to quickly check if folder is empty (.NET)?
...directory on disk is empty. It means, that it does not contain any folders/files. I know, that there is a simple method. We get array of FileSystemInfo's and check if count of elements equals to zero. Something like that:
...
How to enable PHP's openssl extension to install Composer?
...or the location of your PHP installation.
Go to that location and edit the file named: php.ini.
Uncomment the line extension=php_openssl.dll by removing the semicolon at the beginning.
Now you are good to install Composer.
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Unable to execute dex: Multiple dex files define
... for me turns out another developer added a new version of a library jar file without deleting the old one. So there were two jars with same classes. Thus the error 'Multiple dex files...' You could do a grep -r 'OffendingClassName' | grep jar$ to search for jar files that contain the class name....
read.csv warning 'EOF within quoted string' prevents complete reading of file
I have a CSV file (24.1 MB) that I cannot fully read into my R session. When I open the file in a spreadsheet program I can see 112,544 rows. When I read it into R with read.csv I only get 56,952 rows and this warning:
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c# open file with default application and parameters
The most easy way to open a file with the default application is:
5 Answers
5
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What is the difference between sites-enabled and sites-available directory?
...are not enabled yet.
sites-available: this directory has configuration files for Apache2 Virtual Hosts. Virtual Hosts allow Apache2 to be configured for
multiple sites that have separate configurations.
sites-enabled: like mods-enabled, sites-enabled contains symlinks to
the /etc/apache...
SonarQube Exclude a directory
.... I have the following properties defined in my sonar-project.properties file:
13 Answers
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Saving image from PHP URL
...e:
$url = 'http://example.com/image.php';
$img = '/my/folder/flower.gif';
file_put_contents($img, file_get_contents($url));
Else use cURL:
$ch = curl_init('http://example.com/image.php');
$fp = fopen('/my/folder/flower.gif', 'wb');
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HE...
Reading an image file into bitmap from sdcard, why am I getting a NullPointerException?
How can I read an image file into bitmap from sdcard?
4 Answers
4
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