/**
* Enqueues the specified workflow instance into the engine for execution.
*
* @param wf the workflow instance to run
* @param con connection used for the inserting the workflow to the database
* @throws CopperException if the engine can not run the workflow, e.g. in case of a unkown
* processor pool id
*/
public void run(Workflow<?> wf, Connection con) throws CopperException {
if (logger.isTraceEnabled()) logger.trace("run(" + wf + ")");
if (!(wf instanceof PersistentWorkflow<?>)) {
throw new IllegalArgumentException(wf.getClass() + " is no instance of PersistentWorkflow");
}
try {
startupBlocker.pass();
if (wf.getId() == null) {
wf.setId(createUUID());
}
if (wf.getProcessorPoolId() == null) {
wf.setProcessorPoolId(PersistentProcessorPool.DEFAULT_POOL_ID);
}
if (processorPoolManager.getProcessorPool(wf.getProcessorPoolId()) == null) {
logger.error(
"Unkown processor pool '" + wf.getProcessorPoolId() + "' - using default pool instead");
wf.setProcessorPoolId(PersistentProcessorPool.DEFAULT_POOL_ID);
}
dbStorage.insert(wf, con);
notifyProcessorPool(wf.getProcessorPoolId());
} catch (RuntimeException e) {
throw e;
} catch (CopperException e) {
throw e;
} catch (Exception e) {
throw new CopperException("run failed", e);
}
}
void unregister(Workflow<?> wf) {
Workflow<?> existingWF = workflowMap.remove(wf.getId());
assert existingWF != null;
if (existingWF != null && existingWF.getProcessingState() == ProcessingState.FINISHED) {
statisticsCollector.submit(
getEngineId() + "." + wf.getClass().getSimpleName() + ".ExecutionTime",
1,
System.currentTimeMillis() - wf.getCreationTS().getTime(),
TimeUnit.MILLISECONDS);
}
getAndRemoveWaitHooks(wf); // Clean up...
}
private List<WaitHook> getAndRemoveWaitHooks(Workflow<?> wf) {
synchronized (waitHookMap) {
List<WaitHook> l = waitHookMap.remove(wf.getId());
return l == null ? Collections.<WaitHook>emptyList() : l;
}
}
void register(Workflow<?> wf) {
if (logger.isTraceEnabled()) logger.trace("register(" + wf.getId() + ")");
Workflow<?> existingWF = workflowMap.put(wf.getId(), wf);
assert existingWF == null;
}