private void startFileMonitor(long scanInterval) throws FileSystemException {
FileSystemManager fsManager = VFS.getManager();
FileObject listenFile = fsManager.resolveFile(propertyFile.getAbsolutePath());
DefaultFileMonitor defaultFileMonitor = new DefaultFileMonitor(new ServiceIdFileMonitor(this));
defaultFileMonitor.setDelay(scanInterval);
defaultFileMonitor.addFile(listenFile);
defaultFileMonitor.start();
LOGGER.info("Started file monitor on " + propertyFile.getAbsolutePath());
}
private void killLogstashAgent(int logAgentNumber, String logstashLogPath) {
FileObject listendir;
CustomFileListener listener = new CustomFileListener();
long TIMEOUT_BETWEEN_FILE_QUERYING = 1000;
long LOOP_TIMEOUT_IN_MILLIS = 10 * 1000;
try {
FileSystemManager fileSystemManager = VFS.getManager();
listendir = fileSystemManager.resolveFile(logstashLogPath);
} catch (FileSystemException e) {
e.printStackTrace();
return;
}
DefaultFileMonitor fm = new DefaultFileMonitor(listener);
fm.setRecursive(true);
fm.addFile(listendir);
fm.setDelay(TIMEOUT_BETWEEN_FILE_QUERYING);
fm.start();
LogUtils.log("waiting to destroy logger");
long startTimeMillis = System.currentTimeMillis();
while (true) {
if (!listener.isProcessUp()) {
break;
}
listener.setProcessUp(false);
try {
TimeUnit.MILLISECONDS.sleep(LOOP_TIMEOUT_IN_MILLIS);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
long endTimeMillis = System.currentTimeMillis();
LogUtils.log("destroying logstash agent " + logAgentNumber);
LogUtils.log("waited " + (endTimeMillis - startTimeMillis) / 1000 + " seconds");
fm.stop();
// File logstashOutputFile = new File(logstashLogPath);
if (logAgentNumber == 1) {
process.destroy();
process = null;
} else {
process2.destroy();
process2 = null;
}
// try {
// TimeUnit.SECONDS.sleep(5);
//
// LogUtils.log("returning logstash config file to initial state");
// if(logAgentNumber == 1){
// IOUtils.replaceFileWithMove(new File(confFilePath), new File(backupFilePath));
// FileUtils.deleteQuietly(new File(backupFilePath));
// }
// else{
// IOUtils.replaceFileWithMove(new File(confFilePath2), new
// File(backupFilePath2));
// FileUtils.deleteQuietly(new File(backupFilePath2));
//
// }
// } catch (IOException e) {
// e.printStackTrace();
// } catch (InterruptedException e) {
// e.printStackTrace();
// }
// if(logstashOutputFile.exists()){
// FileUtils.deleteQuietly(logstashOutputFile);
// }
}