/**
* Constructs a thread-pool stage.
*
* @param handler the event handler to execute
* @param executor the external executor service provided
* @param errorHandler the error handler
*/
@Inject
public ThreadPoolStage(
@Parameter(StageHandler.class) final EventHandler<T> handler,
@Parameter(StageExecutorService.class) final ExecutorService executor,
@Parameter(ErrorHandler.class) final EventHandler<Throwable> errorHandler) {
this(handler.getClass().getName(), handler, executor, errorHandler);
}
@Override
public void run() {
while (true) {
try {
final U value = queue.take();
handler.onNext(value);
SingleThreadStage.this.afterOnNext();
} catch (final InterruptedException e) {
if (interrupted.get()) {
LOG.log(Level.FINEST, name + " Closing Producer due to interruption");
break;
}
} catch (final Throwable t) {
LOG.log(Level.SEVERE, name + " Exception from event handler", t);
throw t;
}
}
}
/**
* Constructs a thread-pool stage.
*
* @param handler the event handler to execute
* @param numThreads the number of threads to use
* @throws WakeRuntimeException
*/
@Inject
public ThreadPoolStage(
@Parameter(StageHandler.class) final EventHandler<T> handler,
@Parameter(NumberOfThreads.class) final int numThreads) {
this(handler.getClass().getName(), handler, numThreads, null);
}
/**
* Constructs a single thread stage.
*
* @param handler the event handler to execute
* @param capacity the queue capacity
*/
@Inject
public SingleThreadStage(
@Parameter(StageHandler.class) final EventHandler<T> handler,
@Parameter(Capacity.class) final int capacity) {
this(handler.getClass().getName(), handler, capacity);
}