/*
* Copyright 2011 the original author or authors.
*
* Licensed 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.gradle.tooling.internal.consumer.loader;
import org.gradle.initialization.BuildCancellationToken;
import org.gradle.internal.concurrent.CompositeStoppable;
import org.gradle.logging.ProgressLogger;
import org.gradle.logging.ProgressLoggerFactory;
import org.gradle.tooling.internal.consumer.ConnectionParameters;
import org.gradle.tooling.internal.consumer.Distribution;
import org.gradle.tooling.internal.consumer.connection.ConsumerConnection;
import java.io.Closeable;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class SynchronizedToolingImplementationLoader implements ToolingImplementationLoader, Closeable {
private final Lock lock = new ReentrantLock();
private final ToolingImplementationLoader delegate;
public SynchronizedToolingImplementationLoader(ToolingImplementationLoader delegate) {
this.delegate = delegate;
}
public ConsumerConnection create(Distribution distribution, ProgressLoggerFactory progressLoggerFactory, ConnectionParameters connectionParameters, BuildCancellationToken cancellationToken) {
if (lock.tryLock()) {
try {
return delegate.create(distribution, progressLoggerFactory, connectionParameters, cancellationToken);
} finally {
lock.unlock();
}
}
ProgressLogger logger = progressLoggerFactory.newOperation(SynchronizedToolingImplementationLoader.class);
logger.setDescription("Wait for the other thread to finish acquiring the distribution");
logger.started();
lock.lock();
try {
return delegate.create(distribution, progressLoggerFactory, connectionParameters, cancellationToken);
} finally {
lock.unlock();
logger.completed();
}
}
public void close() {
lock.lock();
try {
CompositeStoppable.stoppable(delegate).stop();
} finally {
lock.unlock();
}
}
}