/** Infinite loop performing resource indexing */
public void run() {
long idlingStart = -1;
activateProcessing();
try {
class ProgressJob extends Job {
ProgressJob(String name) {
super(name);
}
protected IStatus run(IProgressMonitor monitor) {
IJob job = currentJob();
while (!monitor.isCanceled() && job != null) {
String taskName =
new StringBuffer(Messages.jobmanager_indexing)
.append(
Messages.bind(
Messages.jobmanager_filesToIndex,
job.getJobFamily(),
Integer.toString(awaitingJobsCount())))
.toString();
monitor.subTask(taskName);
setName(taskName);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// ignore
}
job = currentJob();
}
return Status.OK_STATUS;
}
}
this.progressJob = null;
while (this.processingThread != null) {
try {
IJob job;
synchronized (this) {
// handle shutdown case when notifyAll came before the wait but after the while loop was
// entered
if (this.processingThread == null) continue;
// must check for new job inside this sync block to avoid timing hole
if ((job = currentJob()) == null) {
if (this.progressJob != null) {
this.progressJob.cancel();
this.progressJob = null;
}
if (idlingStart < 0) idlingStart = System.currentTimeMillis();
else notifyIdle(System.currentTimeMillis() - idlingStart);
this.wait(); // wait until a new job is posted (or reenabled:38901)
} else {
idlingStart = -1;
}
}
if (job == null) {
notifyIdle(System.currentTimeMillis() - idlingStart);
// just woke up, delay before processing any new jobs, allow some time for the active
// thread to finish
Thread.sleep(500);
continue;
}
if (VERBOSE) {
Util.verbose(awaitingJobsCount() + " awaiting jobs"); // $NON-NLS-1$
Util.verbose("STARTING background job - " + job); // $NON-NLS-1$
}
try {
this.executing = true;
if (this.progressJob == null) {
this.progressJob =
new ProgressJob(
Messages.bind(
Messages.jobmanager_indexing, "", "")); // $NON-NLS-1$ //$NON-NLS-2$
this.progressJob.setPriority(Job.LONG);
this.progressJob.setSystem(true);
this.progressJob.schedule();
}
/*boolean status = */ job.execute(null);
// if (status == FAILED) request(job);
} finally {
this.executing = false;
if (VERBOSE) Util.verbose("FINISHED background job - " + job); // $NON-NLS-1$
moveToNextJob();
if (this.awaitingClients == 0) Thread.sleep(50);
}
} catch (InterruptedException e) { // background indexing was interrupted
}
}
} catch (RuntimeException e) {
if (this.processingThread != null) { // if not shutting down
// log exception
Util.log(e, "Background Indexer Crash Recovery"); // $NON-NLS-1$
// keep job manager alive
discardJobs(null);
this.processingThread = null;
reset(); // this will fork a new thread with no waiting jobs, some indexes will be
// inconsistent
}
throw e;
} catch (Error e) {
if (this.processingThread != null && !(e instanceof ThreadDeath)) {
// log exception
Util.log(e, "Background Indexer Crash Recovery"); // $NON-NLS-1$
// keep job manager alive
discardJobs(null);
this.processingThread = null;
reset(); // this will fork a new thread with no waiting jobs, some indexes will be
// inconsistent
}
throw e;
}
}
