public void schedule(TimerEntity timer) {
Date duedate = timer.getDuedate();
if (duedate == null) {
throw new ActivitiException("duedate is null");
}
CommandContext commandContext = Context.getCommandContext();
commandContext.getDbSqlSession().insert(timer);
// Check if this timer fires before the next time the job executor will check for new timers to
// fire.
// This is highly unlikely because normally waitTimeInMillis is 5000 (5 seconds)
// and timers are usually set further in the future
JobExecutor jobExecutor = Context.getProcessEngineConfiguration().getJobExecutor();
int waitTimeInMillis = jobExecutor.getWaitTimeInMillis();
if (duedate.getTime() < (ClockUtil.getCurrentTime().getTime() + waitTimeInMillis)) {
// then notify the job executor.
commandContext
.getTransactionContext()
.addTransactionListener(
TransactionState.COMMITTED, new MessageAddedNotification(jobExecutor));
}
}
protected void closeProcessEngine() {
ProcessEngines.unregister(activitiProcessEngine);
JobExecutor jobExecutor = processEngineConfiguration.getJobExecutor();
if (jobExecutor != null && jobExecutor.isActive()) {
jobExecutor.shutdown();
}
}
public void waitForJobExecutorOnCondition(
long maxMillisToWait, long intervalMillis, Callable<Boolean> condition) {
JobExecutor jobExecutor = processEngineConfiguration.getJobExecutor();
jobExecutor.start();
try {
Timer timer = new Timer();
InteruptTask task = new InteruptTask(Thread.currentThread());
timer.schedule(task, maxMillisToWait);
boolean conditionIsViolated = true;
try {
while (conditionIsViolated) {
Thread.sleep(intervalMillis);
conditionIsViolated = !condition.call();
}
} catch (InterruptedException e) {
} catch (Exception e) {
throw new ActivitiException("Exception while waiting on condition: " + e.getMessage(), e);
} finally {
timer.cancel();
}
if (conditionIsViolated) {
throw new ActivitiException("time limit of " + maxMillisToWait + " was exceeded");
}
} finally {
jobExecutor.shutdown();
}
}
public void waitForJobExecutorToProcessAllJobs(long maxMillisToWait, long intervalMillis) {
JobExecutor jobExecutor = processEngineConfiguration.getJobExecutor();
jobExecutor.start();
try {
Timer timer = new Timer();
InteruptTask task = new InteruptTask(Thread.currentThread());
timer.schedule(task, maxMillisToWait);
boolean areJobsAvailable = true;
try {
while (areJobsAvailable && !task.isTimeLimitExceeded()) {
Thread.sleep(intervalMillis);
areJobsAvailable = areJobsAvailable();
}
} catch (InterruptedException e) {
} finally {
timer.cancel();
}
if (areJobsAvailable) {
throw new ActivitiException("time limit of " + maxMillisToWait + " was exceeded");
}
} finally {
jobExecutor.shutdown();
}
}
public void setActivateJobExecutor(boolean activateJobExecutor) {
this.activateJobExecutor = activateJobExecutor;
if (isActive) {
log.info("Process engine configuration 'activateJobExecutor' set to " + activateJobExecutor);
JobExecutor jobExecutor = processEngineConfiguration.getJobExecutor();
if (activateJobExecutor && !jobExecutor.isActive()) {
jobExecutor.start();
} else if (!activateJobExecutor && jobExecutor.isActive()) {
jobExecutor.shutdown();
}
}
}
protected void initProcessEngine() {
activitiProcessEngine = processEngineConfiguration.buildProcessEngine();
log.info(
"Using IdGenerator["
+ processEngineConfiguration.getIdGenerator().getClass().getName()
+ "]");
JobExecutor jobExecutor = processEngineConfiguration.getJobExecutor();
jobExecutor.setLockTimeInMillis(jobExecutor_lockTimeInMillis);
jobExecutor.setMaxJobsPerAcquisition(jobExecutor_maxJobsPerAcquisition);
jobExecutor.setWaitTimeInMillis(jobExecutor_waitTimeInMillis);
}
