/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.openejb.concurrencyutilities.ee.impl;
import org.apache.openejb.api.DestroyableResource;
import org.apache.openejb.concurrencyutilities.ee.future.CUFuture;
import org.apache.openejb.concurrencyutilities.ee.task.CUCallable;
import org.apache.openejb.concurrencyutilities.ee.task.CURunnable;
import org.apache.openejb.util.LogCategory;
import org.apache.openejb.util.Logger;
import javax.enterprise.concurrent.ManagedExecutorService;
import java.util.List;
import java.util.concurrent.AbstractExecutorService;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
public class ManagedExecutorServiceImpl extends AbstractExecutorService implements ManagedExecutorService, DestroyableResource {
private static final Logger LOGGER = Logger.getInstance(LogCategory.OPENEJB, ManagedExecutorServiceImpl.class);
private final ExecutorService delegate;
public ManagedExecutorServiceImpl(final ExecutorService delegate) {
this.delegate = delegate;
}
@Override
public void shutdown() {
throw new IllegalStateException("You can't call shutdown");
}
@Override
public List<Runnable> shutdownNow() {
throw new IllegalStateException("You can't call shutdownNow");
}
@Override
public boolean isShutdown() {
return delegate.isShutdown();
}
@Override
public boolean isTerminated() {
return delegate.isTerminated();
}
@Override
public boolean awaitTermination(final long timeout, final TimeUnit unit) throws InterruptedException {
return delegate.awaitTermination(timeout, unit);
}
@Override
public <T> Future<T> submit(final Callable<T> task) {
final CUCallable<T> wrapper = new CUCallable<T>(task);
final Future<T> future = delegate.submit(wrapper);
wrapper.taskSubmitted(future, this, task);
return new CUFuture<T>(future, wrapper);
}
@Override
public <T> Future<T> submit(final Runnable task, final T result) {
final CURunnable wrapper = new CURunnable(task);
final Future<T> future = delegate.submit(wrapper, result);
wrapper.taskSubmitted(future, this, task);
return new CUFuture<T>(future, wrapper);
}
@Override
public Future<?> submit(final Runnable task) {
final CURunnable wrapper = new CURunnable(task);
final Future<?> future = delegate.submit(wrapper);
wrapper.taskSubmitted(future, this, task);
return new CUFuture<Void>(Future.class.cast(future), wrapper);
}
@Override
public void execute(final Runnable command) {
final CURunnable wrapper = new CURunnable(command);
delegate.execute(wrapper);
wrapper.taskSubmitted(null, this, command);
}
public ExecutorService getDelegate() {
return delegate;
}
@Override
public void destroyResource() {
final List<Runnable> runnables = delegate.shutdownNow();
if (runnables.size() > 0) {
LOGGER.warning(runnables.size() + " tasks to execute");
for (final Runnable runnable : runnables) {
try {
LOGGER.info("Executing " + runnable);
runnable.run();
} catch (final Throwable th) {
LOGGER.error(th.getMessage(), th);
}
}
}
}
}