// $Header: /home/cvs/jakarta-jmeter/src/core/org/apache/jmeter/plugin/PluginManager.java,v 1.7 2004/02/13 02:40:54 sebb Exp $
/*
 * Copyright 2001-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
*/

package org.apache.jmeter.plugin;

import java.net.URL;

import javax.swing.ImageIcon;

import org.apache.jmeter.gui.GUIFactory;

/**
 * @author Oliver Rossmueller
 * @version $Revision: 1.7 $
 */
public final class PluginManager
{
    private static final PluginManager instance = new PluginManager();

    private PluginManager()
    {
    }

    /**
     * Installs a plugin.
     * @param plugin the plugin to install
     * @param useGui indication of whether or not the gui will be used
     */
    public static void install(JMeterPlugin plugin, boolean useGui)
    {
        if (useGui)
        {
            instance.installPlugin(plugin);
        }
    }

    private void installPlugin(JMeterPlugin plugin)
    {
        String[][] icons = plugin.getIconMappings();
        ClassLoader classloader = plugin.getClass().getClassLoader();

        for (int i = 0; i < icons.length; i++)
        {
            URL resource = classloader.getResource(icons[i][1].trim());

            if (resource == null)
            {
                // todo: log or throw exception
            }
            else
            {
                GUIFactory.registerIcon(icons[i][0], new ImageIcon(resource));
            }
        }
    }
}