/**
* Creates an executor that queues the passed tasks for execution by one single additional thread.
* The executor will start to block further executions as soon as more than the configured write
* tasks are waiting for execution.
*/
private static ExecutorService newAsyncWriteExecutor() {
return new ThreadPoolExecutor(
CORE_POOL_SIZE,
MAXIMUM_POOL_SIZE,
KEEP_ALIVE_TIME,
TimeUnit.SECONDS,
new LinkedBlockingQueue<Runnable>(
ScenarioDocuGeneratorConfiguration.INSTANCE.getAsyncWriteBufferSize()));
}
@Override
public void flush() {
final int timeoutInSeconds =
ScenarioDocuGeneratorConfiguration.INSTANCE.getTimeoutWaitingForWritingFinishedInSeconds();
asyncWriteExecutor.shutdown();
try {
final boolean terminated =
asyncWriteExecutor.awaitTermination(timeoutInSeconds, TimeUnit.SECONDS);
if (!terminated) {
asyncWriteExecutor.shutdownNow();
throw new ScenarioDocuTimeoutException(
"Timeout occured while waiting for diff files to be written. Writing of files took too long.");
}
} catch (final InterruptedException e) {
throw new RuntimeException("Async writing of scenarioo docu files was interrupted", e);
}
if (!caughtExceptions.isEmpty()) {
throw new ScenarioDocuSaveException(caughtExceptions);
}
}