/*
* 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.jclouds.lifecycle.config;
import static com.google.inject.name.Names.named;
import static org.jclouds.Constants.PROPERTY_USER_THREADS;
import java.io.Closeable;
import java.io.IOException;
import java.util.concurrent.CountDownLatch;
import javax.annotation.PostConstruct;
import static org.easymock.EasyMock.createStrictMock;
import static org.easymock.EasyMock.expectLastCall;
import static org.easymock.EasyMock.replay;
import static org.easymock.EasyMock.verify;
import org.jclouds.concurrent.config.ExecutorServiceModule;
import org.jclouds.lifecycle.Closer;
import org.testng.annotations.Test;
import com.google.common.util.concurrent.ExecutionList;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.inject.AbstractModule;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.Key;
@Test
public class LifeCycleModuleTest {
@Test
void testBindsExecutor() {
Injector i = createInjector();
assert i.getInstance(Key.get(ListeningExecutorService.class, named(PROPERTY_USER_THREADS))) != null;
}
private Injector createInjector() {
Injector i = Guice.createInjector(new AbstractModule() {
protected void configure() {
bindConstant().annotatedWith(named(PROPERTY_USER_THREADS)).to(1);
}
}, new LifeCycleModule(), new ExecutorServiceModule());
// TODO: currently have to manually invoke the execution list, as otherwise it may occur
// before everything is wired up
i.getInstance(ExecutionList.class).execute();
return i;
}
@Test
void testBindsCloser() {
Injector i = createInjector();
assert i.getInstance(Closer.class) != null;
assert i.getInstance(Closer.class).getState() == Closer.State.AVAILABLE;
}
@Test
void testCloserClosesExecutor() throws IOException {
Injector i = createInjector();
ListeningExecutorService executor = i.getInstance(Key.get(ListeningExecutorService.class,
named(PROPERTY_USER_THREADS)));
assert !executor.isShutdown();
Closer closer = i.getInstance(Closer.class);
assert closer.getState() == Closer.State.AVAILABLE;
closer.close();
assert executor.isShutdown();
assert closer.getState() == Closer.State.DONE;
}
@Test
void testCloserPreDestroyOrder() throws IOException {
Injector i = createInjector();
ListeningExecutorService userExecutor = i.getInstance(Key.get(ListeningExecutorService.class,
named(PROPERTY_USER_THREADS)));
assert !userExecutor.isShutdown();
Closer closer = i.getInstance(Closer.class);
assert closer.getState() == Closer.State.AVAILABLE;
closer.close();
assert userExecutor.isShutdown();
assert closer.getState() == Closer.State.DONE;
}
static class PostConstructable {
boolean isStarted;
@PostConstruct
void start() {
isStarted = true;
}
}
@Test
void testPostConstruct() {
Injector i = createInjector().createChildInjector(new AbstractModule() {
protected void configure() {
bind(PostConstructable.class);
}
});
PostConstructable postConstructable = i.getInstance(PostConstructable.class);
assert postConstructable.isStarted;
}
@Test
void testCloserClosingState() throws InterruptedException {
Injector i = createInjector();
final Closer closer = i.getInstance(Closer.class);
final CountDownLatch closeDone = new CountDownLatch(1);
final CountDownLatch closeStart = new CountDownLatch(1);
closer.addToClose(new Closeable() {
@Override
public void close() throws IOException {
try {
closeStart.countDown();
assert closer.getState() == Closer.State.PROCESSING;
closeDone.await();
} catch (InterruptedException e) {
assert false : e.getMessage();
}
}
});
Thread thread = new Thread(new Runnable() {
@Override
public void run() {
try {
closer.close();
} catch (IOException e) {
assert false : e.getMessage();
}
}
});
thread.start();
closeStart.await();
assert closer.getState() == Closer.State.PROCESSING;
closeDone.countDown();
thread.join();
assert closer.getState() == Closer.State.DONE;
}
@Test
void testCloserCallOneClose() throws IOException, InterruptedException {
Injector i = createInjector();
final Closer closer = i.getInstance(Closer.class);
Closeable closeable = createStrictMock(Closeable.class);
closeable.close();
expectLastCall();
replay(closeable);
closer.addToClose(closeable);
Runnable closeContext = new Runnable() {
@Override
public void run() {
try {
closer.close();
} catch (IOException e) {
assert false : e.getMessage();
}
}
};
Thread thread1 = new Thread(closeContext);
Thread thread2 = new Thread(closeContext);
thread1.start();
thread2.start();
thread1.join();
thread2.join();
verify(closeable);
assert closer.getState() == Closer.State.DONE;
}
}