/*
* Copyright 2010 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.process.internal.child;
import org.gradle.api.Action;
import org.gradle.util.ClassLoaderObjectInputStream;
import org.gradle.util.ClasspathUtil;
import org.gradle.util.GFileUtils;
import org.gradle.util.GUtil;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.net.URLClassLoader;
import java.util.Collection;
import java.util.concurrent.Callable;
/**
* <p>Stage 3 of the start-up for a worker process with the application classes loaded in the system ClassLoader. Takes
* care of adding the application classes to the system ClassLoader and then invoking the next stage of start-up.</p>
*
* <p> Instantiated in the worker bootstrap ClassLoader and invoked from {@link org.gradle.process.internal.launcher.BootstrapClassLoaderWorker}.
* See {@link ApplicationClassesInSystemClassLoaderWorkerFactory} for details.</p>
*/
public class SystemApplicationClassLoaderWorker implements Callable<Void> {
private final byte[] serializedWorker;
private final Collection<File> applicationClassPath;
public SystemApplicationClassLoaderWorker(Collection<File> applicationClassPath, byte[] serializedWorker) {
this.applicationClassPath = applicationClassPath;
this.serializedWorker = serializedWorker;
}
public Void call() throws Exception {
final ClassLoader applicationClassLoader = ClassLoader.getSystemClassLoader();
ClasspathUtil.addUrl((URLClassLoader) applicationClassLoader, GFileUtils.toURLs(applicationClassPath));
System.setProperty("java.class.path", GUtil.join(applicationClassPath, File.pathSeparator));
ClassLoaderObjectInputStream instr = new ClassLoaderObjectInputStream(new ByteArrayInputStream(
serializedWorker), getClass().getClassLoader());
final Action<WorkerContext> action = (Action<WorkerContext>) instr.readObject();
action.execute(new WorkerContext() {
public ClassLoader getApplicationClassLoader() {
return applicationClassLoader;
}
});
return null;
}
}