/*
* Copyright (C) 2013 Glyptodon LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.glyptodon.guacamole.net.basic.properties;
import java.util.ArrayList;
import java.util.Collection;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.net.basic.GuacamoleClassLoader;
import org.glyptodon.guacamole.properties.GuacamoleProperty;
/**
* A GuacamoleProperty whose value is a comma-separated list of class names,
* where each class will be used as a listener for events.
*
* @author Michael Jumper
*/
public abstract class EventListenersProperty implements GuacamoleProperty<Collection<Class>> {
@Override
public Collection<Class> parseValue(String classNameList) throws GuacamoleException {
// If no property provided, return null.
if (classNameList == null)
return null;
// Parse list
String[] classNames = classNameList.split(",[\\s]*");
// Fill list of classes
Collection<Class> listeners = new ArrayList<Class>();
try {
// Load all classes in list
for (String className : classNames) {
Class clazz = GuacamoleClassLoader.getInstance().loadClass(className);
listeners.add(clazz);
}
}
catch (ClassNotFoundException e) {
throw new GuacamoleException("Listener class not found.", e);
}
catch (SecurityException e) {
throw new GuacamoleException("Security settings prevent loading of listener class.", e);
}
return listeners;
}
}