/*
* 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.launcher.bootstrap;
import org.gradle.api.internal.ClassPathRegistry;
import org.gradle.api.internal.DefaultClassPathProvider;
import org.gradle.api.internal.DefaultClassPathRegistry;
import org.gradle.api.internal.classpath.DefaultModuleRegistry;
import org.gradle.internal.classpath.ClassPath;
import org.gradle.internal.classloader.ClassLoaderFactory;
import org.gradle.internal.classloader.DefaultClassLoaderFactory;
import org.gradle.internal.classloader.MutableURLClassLoader;
import java.lang.reflect.Method;
public class ProcessBootstrap {
/**
* Sets up the ClassLoader structure for the given class, creates an instance and invokes {@link EntryPoint#run(String[])} on it.
*/
public void run(String mainClassName, String[] args) {
try {
runNoExit(mainClassName, args);
System.exit(0);
} catch (Throwable throwable) {
throwable.printStackTrace();
System.exit(1);
}
}
private void runNoExit(String mainClassName, String[] args) throws Exception {
ClassPathRegistry classPathRegistry = new DefaultClassPathRegistry(new DefaultClassPathProvider(new DefaultModuleRegistry()));
ClassLoaderFactory classLoaderFactory = new DefaultClassLoaderFactory();
ClassPath antClasspath = classPathRegistry.getClassPath("ANT");
ClassPath runtimeClasspath = classPathRegistry.getClassPath("GRADLE_RUNTIME");
ClassLoader antClassLoader = classLoaderFactory.createIsolatedClassLoader(antClasspath);
ClassLoader runtimeClassLoader = new MutableURLClassLoader(antClassLoader, runtimeClasspath);
Thread.currentThread().setContextClassLoader(runtimeClassLoader);
Class<?> mainClass = runtimeClassLoader.loadClass(mainClassName);
Object entryPoint = mainClass.newInstance();
Method mainMethod = mainClass.getMethod("run", String[].class);
mainMethod.invoke(entryPoint, new Object[]{args});
}
}