org.mule.module.launcher.application.CompositeApplicationClassLoaderFactory Maven / Gradle / Ivy

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/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.module.launcher.application;

import org.mule.module.launcher.PluginClassLoaderManager;
import org.mule.module.launcher.artifact.ArtifactClassLoader;
import org.mule.module.launcher.descriptor.ApplicationDescriptor;

import java.util.LinkedList;
import java.util.List;

/**
 * Composes a {@link CompositeApplicationClassLoader} using a {@link ApplicationClassLoaderFactory}
 * to getDomainClassLoader the classloader for a Mule application and the plugin
 * classloaders available in the {@link PluginClassLoaderManager}
 */
public class CompositeApplicationClassLoaderFactory implements ApplicationClassLoaderFactory
{

    private final PluginClassLoaderManager pluginClassLoaderManager;
    private final ApplicationClassLoaderFactory applicationClassLoaderFactory;

    public CompositeApplicationClassLoaderFactory(ApplicationClassLoaderFactory applicationClassLoaderFactory, PluginClassLoaderManager pluginClassLoaderManager)
    {
        this.applicationClassLoaderFactory = applicationClassLoaderFactory;
        this.pluginClassLoaderManager = pluginClassLoaderManager;
    }

    @Override
    public ArtifactClassLoader create(ApplicationDescriptor descriptor)
    {
        List pluginClassLoaders = pluginClassLoaderManager.getPluginClassLoaders();

        ArtifactClassLoader appClassLoader = applicationClassLoaderFactory.create(descriptor);

        if (!pluginClassLoaders.isEmpty())
        {
            List classLoaders = new LinkedList();
            classLoaders.add(appClassLoader.getClassLoader());
            classLoaders.addAll(pluginClassLoaders);

            appClassLoader = new CompositeApplicationClassLoader(descriptor.getAppName(), classLoaders);
        }

        return appClassLoader;
    }
}