public void run() {
__log.debug("Starting process definition reaper thread.");
long pollingTime = 10000;
try {
while (true) {
Thread.sleep(pollingTime);
if (!_mngmtLock.writeLock().tryLock(100L, TimeUnit.MILLISECONDS)) continue;
try {
__log.debug("Kicking reaper, OProcess instances: " + OProcess.instanceCount);
// Copying the runnning process list to avoid synchronization
// problems and a potential mess if a policy modifies the list
List<BpelProcess> candidates = new ArrayList<BpelProcess>(_registeredProcesses);
CollectionsX.remove_if(
candidates,
new MemberOfFunction<BpelProcess>() {
public boolean isMember(BpelProcess o) {
return !o.hintIsHydrated();
}
});
// And the happy winners are...
List<BpelProcess> ripped = _dehydrationPolicy.markForDehydration(candidates);
// Bye bye
for (BpelProcess process : ripped) {
__log.debug("Dehydrating process " + process.getPID());
process.dehydrate();
}
} finally {
_mngmtLock.writeLock().unlock();
}
}
} catch (InterruptedException e) {
__log.debug(e);
}
}
public void unregister(QName pid) throws BpelEngineException {
if (__log.isTraceEnabled()) __log.trace("unregister: " + pid);
try {
_mngmtLock.writeLock().lockInterruptibly();
} catch (InterruptedException ie) {
__log.debug("unregister() interrupted.", ie);
throw new BpelEngineException(__msgs.msgOperationInterrupted());
}
try {
BpelProcess p;
if (_engine != null) {
p = _engine.unregisterProcess(pid);
if (p != null) {
_registeredProcesses.remove(p);
XslTransformHandler.getInstance().clearXSLSheets(p.getProcessType());
__log.info(__msgs.msgProcessUnregistered(pid));
}
}
} catch (Exception ex) {
__log.error(__msgs.msgProcessUnregisterFailed(pid), ex);
throw new BpelEngineException(ex);
} finally {
_mngmtLock.writeLock().unlock();
}
}
private boolean isLazyHydratable(BpelProcess process) {
if (process.isHydrationLazySet()) {
return process.isHydrationLazy();
}
if (!_hydrationLazy) {
return false;
}
return process.getEstimatedHydratedSize() < _hydrationLazyMinimumSize;
}
public void register(ProcessConf conf) {
if (conf == null)
throw new NullPointerException("must specify non-null process configuration.");
__log.debug("register: " + conf.getProcessId());
// Ok, IO out of the way, we will mod the server state, so need to get a
// lock.
try {
_mngmtLock.writeLock().lockInterruptibly();
} catch (InterruptedException ie) {
__log.debug("register(...) interrupted.", ie);
throw new BpelEngineException(__msgs.msgOperationInterrupted());
}
try {
// If the process is already active, do nothing.
if (_engine.isProcessRegistered(conf.getProcessId())) {
__log.debug(
"skipping doRegister" + conf.getProcessId() + ") -- process is already registered");
return;
}
__log.debug("Registering process " + conf.getProcessId() + " with server.");
BpelProcess process = createBpelProcess(conf);
process._classLoader = Thread.currentThread().getContextClassLoader();
_engine.registerProcess(process);
_registeredProcesses.add(process);
if (!isLazyHydratable(process)) {
process.hydrate();
} else {
_engine.setProcessSize(process.getPID(), false);
}
__log.info(__msgs.msgProcessRegistered(conf.getProcessId()));
} catch (Exception ex) {
__log.error(ex);
throw new BpelEngineException(ex);
} finally {
_mngmtLock.writeLock().unlock();
}
}