/*
* Copyright (c) 2008, 2009, 2010, 2011 Denis Tulskiy
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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
* version 3 along with this work. If not, see <http://www.gnu.org/licenses/>.
*/
package com.tulskiy.musique.spi;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.ServiceLoader;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Author: Denis Tulskiy
* Date: 2/27/11
*/
public class PluginLoader {
private final Logger logger = Logger.getLogger(getClass().getName());
private ArrayList<Plugin> activePlugins = new ArrayList<Plugin>();
public void load() {
logger.fine("Loading plugins");
// URLClassLoader classLoader = new URLClassLoader(new URL[]{
// new File("musique.jar").toURI().toURL(),
// });
try {
ServiceLoader<Plugin> loader = ServiceLoader.load(Plugin.class, getClass().getClassLoader());
for (Plugin plugin : loader) {
try {
logger.fine("Loading plugin: " + plugin);
if (plugin.init()) {
activePlugins.add(plugin);
}
} catch (Throwable e) {
logger.log(Level.WARNING, "Error loading " + plugin.getDescription(), e);
}
}
} catch (Throwable e) {
e.printStackTrace();
logger.log(Level.WARNING, "Error loading plugins", e);
}
logger.fine("Finished loading plugins");
}
public void shutdown() {
for (Plugin plugin : activePlugins) {
plugin.shutdown();
}
}
public List<Plugin> getActivePlugins() {
return Collections.unmodifiableList(activePlugins);
}
}