@Override
public boolean isCanceled() {
if (super.isCanceled()) {
return true;
}
if (job.shouldReschedule() && job.isBlocking()) {
if (blockTime == 0) {
blockTime = System.currentTimeMillis();
} else if (System.currentTimeMillis() - blockTime > THRESHOLD) {
// We've been blocking for too long
wasBlocking = true;
return true;
}
} else {
blockTime = 0;
}
wasBlocking = false;
return false;
}
/**
* This is run by the job scheduler. A list of subscribers will be refreshed, errors will not stop
* the job and it will continue to refresh the other subscribers.
*/
@Override
public IStatus run(IProgressMonitor monitor) {
// Perform a pre-check for auto-build or manual build jobs
// when auto-refreshing
if (shouldReschedule()
&& (isJobInFamilyRunning(ResourcesPlugin.FAMILY_AUTO_BUILD)
|| isJobInFamilyRunning(ResourcesPlugin.FAMILY_MANUAL_BUILD))) {
return POSTPONED;
}
// Only allow one refresh job at a time
// NOTE: It would be cleaner if this was done by a scheduling
// rule but at the time of writing, it is not possible due to
// the scheduling rule containment rules.
// Acquiring lock to ensure only one refresh job is running at a particular time
boolean acquired = false;
try {
while (!acquired) {
try {
acquired = lock.acquire(1000);
} catch (InterruptedException e1) {
acquired = false;
}
Policy.checkCanceled(monitor);
}
IChangeDescription changeDescription = createChangeDescription();
RefreshEvent event =
new RefreshEvent(
reschedule ? IRefreshEvent.SCHEDULED_REFRESH : IRefreshEvent.USER_REFRESH,
participant,
changeDescription);
IStatus status = null;
NonblockingProgressMonitor wrappedMonitor = null;
try {
event.setStartTime(System.currentTimeMillis());
if (monitor.isCanceled()) {
return Status.CANCEL_STATUS;
}
// Pre-Notify
notifyListeners(STARTED, event);
// Perform the refresh
monitor.setTaskName(getName());
wrappedMonitor = new NonblockingProgressMonitor(monitor, this);
doRefresh(changeDescription, wrappedMonitor);
// Prepare the results
setProperty(IProgressConstants.KEEPONE_PROPERTY, Boolean.valueOf(!isJobModal()));
} catch (OperationCanceledException e2) {
if (monitor.isCanceled()) {
// The refresh was canceled by the user
status = Status.CANCEL_STATUS;
} else {
// The refresh was canceled due to a blockage or a canceled authentication
if (wrappedMonitor != null && wrappedMonitor.wasBlocking()) {
status = POSTPONED;
} else {
status = Status.CANCEL_STATUS;
}
}
} catch (CoreException e) {
// Determine the status to be returned and the GOTO action
status = e.getStatus();
if (!isUser()) {
// Use the GOTO action to show the error and return OK
Object prop = getProperty(IProgressConstants.ACTION_PROPERTY);
if (prop instanceof GotoActionWrapper) {
GotoActionWrapper wrapper = (GotoActionWrapper) prop;
wrapper.setStatus(e.getStatus());
status =
new Status(IStatus.OK, TeamUIPlugin.ID, IStatus.OK, e.getStatus().getMessage(), e);
}
}
if (!isUser() && status.getSeverity() == IStatus.ERROR) {
// Never prompt for errors on non-user jobs
setProperty(IProgressConstants.NO_IMMEDIATE_ERROR_PROMPT_PROPERTY, Boolean.TRUE);
}
} finally {
event.setStopTime(System.currentTimeMillis());
}
// Post-Notify
if (status == null) {
status = calculateStatus(event);
}
event.setStatus(status);
notifyListeners(DONE, event);
if (event.getChangeDescription().getChangeCount() > 0) {
if (participant instanceof AbstractSynchronizeParticipant) {
AbstractSynchronizeParticipant asp = (AbstractSynchronizeParticipant) participant;
asp.firePropertyChange(
participant, ISynchronizeParticipant.P_CONTENT, null, event.getChangeDescription());
}
}
return event.getStatus();
} finally {
if (acquired) lock.release();
monitor.done();
}
}