gov.nist.javax.sip.stack.timers.DefaultSipTimer Maven / Gradle / Ivy
/*
* Conditions Of Use
*
* This software was developed by employees of the National Institute of
* Standards and Technology (NIST), an agency of the Federal Government.
* Pursuant to title 15 Untied States Code Section 105, works of NIST
* employees are not subject to copyright protection in the United States
* and are considered to be in the public domain. As a result, a formal
* license is not needed to use the software.
*
* This software is provided by NIST as a service and is expressly
* provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
* AND DATA ACCURACY. NIST does not warrant or make any representations
* regarding the use of the software or the results thereof, including but
* not limited to the correctness, accuracy, reliability or usefulness of
* the software.
*
* Permission to use this software is contingent upon your acceptance
* of the terms of this agreement
*
* .
*
*/
package android.gov.nist.javax.sip.stack.timers;
import android.gov.nist.core.CommonLogger;
import android.gov.nist.core.StackLogger;
import android.gov.nist.javax.sip.SipStackImpl;
import android.gov.nist.javax.sip.stack.SIPStackTimerTask;
import android.gov.nist.javax.sip.stack.SIPTransactionStack;
import java.util.Properties;
import java.util.Timer;
import java.util.TimerTask;
import java.util.concurrent.atomic.AtomicBoolean;
/**
* Default SIP Timer implementation based on java.util.Timer
*
* @author [email protected]
*
*/
public class DefaultSipTimer extends Timer implements SipTimer {
private static StackLogger logger = CommonLogger.getLogger(DefaultSipTimer.class);
protected AtomicBoolean started = new AtomicBoolean(false);
protected SipStackImpl sipStackImpl;
public DefaultSipTimer() {
super("DefaultSipTimerThread");
}
private class DefaultTimerTask extends TimerTask {
private SIPStackTimerTask task;
public DefaultTimerTask(SIPStackTimerTask task) {
this.task= task;
task.setSipTimerTask(this);
}
public void run() {
try {
// task can be null if it has been cancelled
if(task != null) {
task.runTask();
}
} catch (Throwable e) {
System.out.println("SIP stack timer task failed due to exception:");
e.printStackTrace();
}
}
public boolean cancel() {
if(task != null) {
task.cleanUpBeforeCancel();
task = null;
}
return super.cancel();
}
}
/*
* (non-Javadoc)
* @see android.gov.nist.javax.sip.stack.timers.SipTimer#schedule(android.gov.nist.javax.sip.stack.SIPStackTimerTask, long)
*/
public boolean schedule(SIPStackTimerTask task, long delay) {
if(!started.get()) {
throw new IllegalStateException("The SIP Stack Timer has been stopped, no new tasks can be scheduled !");
}
super.schedule(new DefaultTimerTask(task), delay);
return true;
}
/*
* (non-Javadoc)
* @see android.gov.nist.javax.sip.stack.timers.SipTimer#scheduleWithFixedDelay(android.gov.nist.javax.sip.stack.SIPStackTimerTask, long, long)
*/
public boolean scheduleWithFixedDelay(SIPStackTimerTask task, long delay,
long period) {
if(!started.get()) {
throw new IllegalStateException("The SIP Stack Timer has been stopped, no new tasks can be scheduled !");
}
super.schedule(new DefaultTimerTask(task), delay, period);
return true;
}
/*
* (non-Javadoc)
* @see android.gov.nist.javax.sip.stack.timers.SipTimer#cancel(android.gov.nist.javax.sip.stack.SIPStackTimerTask)
*/
public boolean cancel(SIPStackTimerTask task) {
return ((TimerTask)task.getSipTimerTask()).cancel();
}
/*
* (non-Javadoc)
* @see android.gov.nist.javax.sip.stack.timers.SipTimer#start(android.gov.nist.javax.sip.SipStackImpl, java.util.Properties)
*/
public void start(SipStackImpl sipStack, Properties configurationProperties) {
sipStackImpl= sipStack;
// don't need the properties so nothing to see here
started.set(true);
if(logger.isLoggingEnabled(StackLogger.TRACE_INFO)) {
logger.logInfo("the sip stack timer " + this.getClass().getName() + " has been started");
}
}
/*
* (non-Javadoc)
* @see android.gov.nist.javax.sip.stack.timers.SipTimer#stop()
*/
public void stop() {
started.set(false);
cancel();
logger.logStackTrace(StackLogger.TRACE_DEBUG);
if(logger.isLoggingEnabled(StackLogger.TRACE_INFO)) {
logger.logInfo("the sip stack timer " + this.getClass().getName() + " has been stopped");
}
}
/*
* (non-Javadoc)
* @see android.gov.nist.javax.sip.stack.timers.SipTimer#isStarted()
*/
public boolean isStarted() {
return started.get();
}
}