/*
* JBoss, Home of Professional Open Source.
* Copyright 2010, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.deployment.module;
import java.util.HashMap;
import java.util.Map;
import org.jboss.modules.ClassifyingModuleLoader;
import org.jboss.modules.Module;
import org.jboss.modules.ModuleLoader;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
/**
* Service responsible for managing the lifecycle of the classifying module loader.
*
* @author John Bailey
*/
public class ClassifyingModuleLoaderService implements Service<ClassifyingModuleLoaderService> {
public static final ServiceName SERVICE_NAME = ServiceName.JBOSS.append("classifying", "module", "loader");
private ClassifyingModuleLoader classifyingModuleLoader;
private final Map<String, ModuleLoader> delegates = new HashMap<String, ModuleLoader>();
/**
* Gets the module loader
*/
public ModuleLoader getModuleLoader() {
return classifyingModuleLoader;
}
/**
* Creates the classifying module loader with the current set of delegates, and registers a module
* loader selector.
*
* @param context The start context
*/
public synchronized void start(StartContext context) throws StartException {
classifyingModuleLoader = new ClassifyingModuleLoader("as-classifying", delegates, Module.getDefaultModuleLoader());
}
/**
* Removes the reference to the classifying module loader and remove the selector.
*
* @param context
*/
public synchronized void stop(StopContext context) {
classifyingModuleLoader = null;
}
/** {@inheritDoc} */
public synchronized ClassifyingModuleLoaderService getValue() throws IllegalStateException {
return this;
}
synchronized void addDelegate(final String name, final ModuleLoader delegate) {
if(delegates.put(name, delegate) != null) {
throw new IllegalArgumentException("Provided delegate name " + name + " is already present.");
}
classifyingModuleLoader.setDelegates(delegates);
}
synchronized void removeDelegate(final String name) {
delegates.remove(name);
classifyingModuleLoader.setDelegates(delegates);
}
}