/**
* Ermitteln, ob das Programm bereits gestartet ist
*
* @param filename Dateiname
*
* @return true, falls das Programm bereits gestartet ist
*/
public boolean isOtherInstanceRunning(String filename) {
try {
File f = new File(System.getProperty("java.io.tmpdir") + "/" + filename + ".lock");
fos = new FileOutputStream(f);
fc = fos.getChannel();
lock = fc.tryLock();
if (lock == null) {
fc.close();
fos.close();
return true;
}
f.deleteOnExit();
} catch (Exception e) {
return false;
}
return false;
}
static class GuiTools{
static File FILE;
static FileOutputStream FOS;
static FileLock LOCK;
static public boolean isAnotherInstanceRunning(String filename) {
try {
FILE = new File(filename);
FOS = new FileOutputStream(FILE);
FileChannel fc = FOS.getChannel();
LOCK = fc.tryLock();
if (LOCK == null) {
fc.close();
FOS.close();
return true;
}
}
catch (Exception e) {
e.printStackTrace();
return false;
}
return false;
}
public static void exitApplication(){
try {
if(LOCK!=null){
LOCK.release();
FOS.close();
FILE.delete();
}
}catch(Exception e){e.printStackTrace();}
System.exit(0);
}
}
