/*
* 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.launcher;
import java.io.File;
import java.io.Serializable;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Collection;
import java.util.concurrent.Callable;
/**
* <p>Stage 2 of the start-up for a worker process with the application classes loaded in the system ClassLoader. Takes
* care of creating the worker bootstrap ClassLoader and executing the next stage of start-up in that ClassLoader.</p>
*
* <p> Instantiated in the system ClassLoader and called from {@link GradleWorkerMain}. See
* {@link org.gradle.process.internal.child.ApplicationClassesInSystemClassLoaderWorkerFactory} for details.</p>
*/
public class BootstrapClassLoaderWorker implements Callable<Void>, Serializable {
private final Collection<URL> bootstrapClasspath;
private final Collection<File> applicationClasspath;
private final byte[] serializedWorker;
public BootstrapClassLoaderWorker(Collection<URL> bootstrapClasspath, Collection<File> applicationClasspath,
byte[] serializedWorker) {
this.bootstrapClasspath = bootstrapClasspath;
this.applicationClasspath = applicationClasspath;
this.serializedWorker = serializedWorker;
}
public Void call() throws Exception {
URL[] bootstrapUrls = bootstrapClasspath.toArray(new URL[bootstrapClasspath.size()]);
URLClassLoader classLoader = new URLClassLoader(bootstrapUrls, ClassLoader.getSystemClassLoader().getParent());
Class<? extends Callable> workerClass = classLoader.loadClass(
"org.gradle.process.internal.child.SystemApplicationClassLoaderWorker").asSubclass(Callable.class);
Callable<Void> main = workerClass.getConstructor(Collection.class, byte[].class).newInstance(
applicationClasspath, serializedWorker);
return main.call();
}
}