/*
* 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.server;
import java.io.File;
import org.jboss.modules.Module;
import org.jboss.modules.ModuleClassLoader;
import org.jboss.modules.ModuleIdentifier;
import org.jboss.modules.ModuleLoadException;
import org.jboss.modules.ModuleLoader;
/**
* A factory for the initial ModuleLoader.
*
* @author Thomas.Diesler@jboss.com
* @since 17-Nov-2010
*/
final class InitialModuleLoaderFactory {
// Hide ctor
private InitialModuleLoaderFactory() {
}
/**
* Initializes the modules system and obtains the initial default ModuleLoader
*
* @param systemPaths Paths that are exported by the SYSTEM module
* @return The default module loader
*/
public static ModuleLoader getModuleLoader(File modulePath, String... systemPackages) {
if (modulePath == null || modulePath.isDirectory() == false)
throw new IllegalArgumentException("Invalid module path: " + modulePath);
String oldClassPath = SecurityActions.getSystemProperty("java.class.path");
try {
SecurityActions.clearSystemProperty("java.class.path");
SecurityActions.setSystemProperty("module.path", modulePath.getAbsolutePath());
StringBuffer packages = new StringBuffer("org.jboss.modules");
if (systemPackages != null) {
for (String packageName : systemPackages)
packages.append("," + packageName);
}
SecurityActions.setSystemProperty("jboss.modules.system.pkgs", packages.toString());
ModuleLoader moduleLoader = Module.getBootModuleLoader();
// Sanity check that the SYSTEM module ClassLoader cannot see this class
try {
ModuleClassLoader classLoader = moduleLoader.loadModule(ModuleIdentifier.SYSTEM).getClassLoader();
classLoader.loadClass(InitialModuleLoaderFactory.class.getName());
throw new IllegalStateException("Cannot initialize module system. There was probably a previous usage.");
} catch (ModuleLoadException e) {
// ignore
} catch (ClassNotFoundException ex) {
// expected
}
return moduleLoader;
} finally {
SecurityActions.setSystemProperty("java.class.path", oldClassPath);
}
}
private static String classToResource(Class<?> clazz) {
String base = clazz.getName().replace('.', '/');
return base + ".class";
}
}