public TabularData listCoordinations(String regexFilter) {
Pattern p = Pattern.compile(regexFilter);
TabularData td = new TabularDataSupport(COORDINATIONS_TYPE);
for (CoordinationImpl c : coordinations.values()) {
if (p.matcher(c.getName()).matches()) {
try {
td.put(fromCoordination(c));
} catch (OpenDataException e) {
// TODO: log
}
}
}
return td;
}
void unregister(final CoordinationImpl c) {
coordinations.remove(c.getId());
Stack<Coordination> stack = threadStacks.get();
if (stack != null) {
stack.remove(c);
}
}
void lockParticipant(final Participant p, final CoordinationImpl c) {
synchronized (participants) {
// wait for participant to be released
long cutOff = System.currentTimeMillis() + participationTimeOut;
long waitTime =
(participationTimeOut > 500) ? participationTimeOut / 500 : participationTimeOut;
CoordinationImpl current = participants.get(p);
while (current != null && current != c) {
if (current.getThread() == c.getThread()) {
throw new CoordinationException(
"Participant "
+ p
+ " already participating in Coordination "
+ current.getId()
+ "/"
+ current.getName()
+ " in this thread",
c,
CoordinationException.DEADLOCK_DETECTED);
}
try {
participants.wait(waitTime);
} catch (InterruptedException ie) {
throw new CoordinationException(
"Interrupted waiting to add Participant "
+ p
+ " currently participating in Coordination "
+ current.getId()
+ "/"
+ current.getName()
+ " in this thread",
c,
CoordinationException.LOCK_INTERRUPTED);
}
// timeout waiting for participation
if (System.currentTimeMillis() > cutOff) {
throw new CoordinationException(
"Timed out waiting to join coordinaton", c, CoordinationException.UNKNOWN);
}
// check again
current = participants.get(p);
}
// lock participant into coordination
participants.put(p, c);
}
}
private CompositeData fromCoordination(final CoordinationImpl c) throws OpenDataException {
return new CompositeDataSupport(
COORDINATION_TYPE,
new String[] {ID, NAME, TIMEOUT},
new Object[] {c.getId(), c.getName(), c.getDeadLine()});
}
Coordination getCoordinationById(final long id) {
CoordinationImpl c = coordinations.get(id);
return (c == null || c.isTerminated()) ? null : c;
}
