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/*
* 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 com.alipay.sofa.ark.bootstrap;
import com.alipay.sofa.ark.common.util.ClassLoaderUtils;
import com.alipay.sofa.ark.loader.jar.JarFile;
import com.alipay.sofa.ark.spi.archive.ContainerArchive;
import com.alipay.sofa.ark.spi.archive.ExecutableArchive;
import com.alipay.sofa.ark.spi.argument.CommandArgument;
import com.alipay.sofa.ark.spi.constant.Constants;
import java.lang.reflect.Method;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* @author qilong.zql
* @since 0.1.0
*/
public abstract class AbstractLauncher {
/**
* Launch the ark container. This method is the initial entry point when execute an fat jar.
* @throws Exception if the ark container fails to launch.
*/
public Object launch(String[] args) throws Exception {
if (!isEmbedEnable()) {
JarFile.registerUrlProtocolHandler();
}
ClassLoader classLoader = createContainerClassLoader(getContainerArchive());
List attachArgs = new ArrayList<>();
attachArgs
.add(String.format("%s%s=%s", CommandArgument.ARK_CONTAINER_ARGUMENTS_MARK,
CommandArgument.FAT_JAR_ARGUMENT_KEY, getExecutableArchive().getUrl()
.toExternalForm()));
attachArgs.addAll(Arrays.asList(args));
return launch(attachArgs.toArray(new String[attachArgs.size()]), getMainClass(),
classLoader);
}
/**
* Launch the ark container. This method is the initial entry point when execute in IDE.
* @throws Exception if the ark container fails to launch.
*/
public Object launch(String[] args, String classpath, Method method) throws Exception {
if (!isEmbedEnable()) {
JarFile.registerUrlProtocolHandler();
}
ClassLoader classLoader = createContainerClassLoader(getContainerArchive());
List attachArgs = new ArrayList<>();
attachArgs.add(String.format("%s%s=%s", CommandArgument.ARK_CONTAINER_ARGUMENTS_MARK,
CommandArgument.CLASSPATH_ARGUMENT_KEY, classpath));
attachArgs.add(String.format("%s%s=%s", CommandArgument.ARK_BIZ_ARGUMENTS_MARK,
CommandArgument.ENTRY_CLASS_NAME_ARGUMENT_KEY, method.getDeclaringClass().getName()));
attachArgs.add(String.format("%s%s=%s", CommandArgument.ARK_BIZ_ARGUMENTS_MARK,
CommandArgument.ENTRY_METHOD_NAME_ARGUMENT_KEY, method.getName()));
attachArgs.addAll(Arrays.asList(args));
return launch(attachArgs.toArray(new String[attachArgs.size()]), getMainClass(),
classLoader);
}
/**
* Launch the ark container in {@literal TEST} run mode.
*
* @param classpath classpath of ark-biz
* @param testClass test class
* @return Object {@literal com.alipay.sofa.ark.container.ArkContainer}
* @throws Exception
*/
public Object launch(String classpath, Class testClass) throws Exception {
if (!isEmbedEnable()) {
JarFile.registerUrlProtocolHandler();
}
ClassLoader classLoader = createContainerClassLoader(getContainerArchive());
List attachArgs = new ArrayList<>();
attachArgs.add(String.format("%s%s=%s", CommandArgument.ARK_CONTAINER_ARGUMENTS_MARK,
CommandArgument.CLASSPATH_ARGUMENT_KEY, classpath));
attachArgs.add(String.format("%s%s=%s", CommandArgument.ARK_BIZ_ARGUMENTS_MARK,
CommandArgument.ENTRY_CLASS_NAME_ARGUMENT_KEY, testClass.getCanonicalName()));
return launch(attachArgs.toArray(new String[attachArgs.size()]), getMainClass(),
classLoader);
}
protected Object launch(String[] args, String mainClass, ClassLoader classLoader)
throws Exception {
ClassLoader old = Thread.currentThread().getContextClassLoader();
try {
Thread.currentThread().setContextClassLoader(classLoader);
return createMainMethodRunner(mainClass, args).run();
} finally {
Thread.currentThread().setContextClassLoader(old);
}
}
protected MainMethodRunner createMainMethodRunner(String mainClass, String[] args) {
return new MainMethodRunner(mainClass, args, null);
}
/**
* Returns the executable archive
* @return the executable archive
* @throws Exception
*/
protected abstract ExecutableArchive getExecutableArchive() throws Exception;
/**
* Returns the container archive archive
* @return the container archive archive
* @throws Exception
*/
protected ContainerArchive getContainerArchive() throws Exception {
return getExecutableArchive().getContainerArchive();
}
/**
* Create a classloader for the ark container archive
* @param containerArchive the ark container archive
* @return the classloader load ark container
* @throws Exception
*/
protected ClassLoader createContainerClassLoader(ContainerArchive containerArchive)
throws Exception {
List classpath = getExecutableArchive().getConfClasspath();
classpath.addAll(Arrays.asList(containerArchive.getUrls()));
URL[] agentUrls = ClassLoaderUtils.getAgentClassPath();
// set parent as app class loader to ensure agent like skywalking works well
ClassLoader agentClassLoader = (agentUrls.length > 0 ? new AgentClassLoader(agentUrls,
Thread.currentThread().getContextClassLoader()) : null);
return createContainerClassLoader(classpath.toArray(new URL[] {}), null, agentClassLoader);
}
/**
* Create a classloader for the specified URLs.
* @param urls the URLs
* @param parent the parent
* @return the classloader load ark container
*/
protected ClassLoader createContainerClassLoader(URL[] urls, ClassLoader parent,
ClassLoader agentClassLoader) {
return isEmbedEnable() ? new ContainerClassLoader(urls, parent, this.getClass()
.getClassLoader(), agentClassLoader) : new ContainerClassLoader(urls, parent,
agentClassLoader);
}
private boolean isEmbedEnable() {
return Boolean.getBoolean(Constants.EMBED_ENABLE);
}
/**
* Returns the main class that should be launched.
*
* @return the name of the main class
* @throws Exception if the main class cannot be obtained.
*/
protected abstract String getMainClass() throws Exception;
}
