/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2011 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see http://www.gnu.org/licenses/.
 */
package com.rapidminer.repository.resource;

import javax.swing.event.EventListenerList;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import com.rapidminer.repository.Entry;
import com.rapidminer.repository.Folder;
import com.rapidminer.repository.MalformedRepositoryLocationException;
import com.rapidminer.repository.Repository;
import com.rapidminer.repository.RepositoryException;
import com.rapidminer.repository.RepositoryListener;
import com.rapidminer.repository.RepositoryLocation;
import com.rapidminer.repository.RepositoryManager;
import com.rapidminer.repository.gui.RepositoryConfigurationPanel;
import com.rapidminer.tools.I18N;

/** Repository backed by Java resources. Folders must contain a "CONTENTS" file, otherwise
 *  the contents cannot be scanned.
 * 
 * @author Simon Fischer
 * 
 */
public class ResourceRepository extends ResourceFolder implements Repository {

	private final EventListenerList listeners = new EventListenerList();

	private String resourcePrefix;
	
	public ResourceRepository(String name, String resourcePrefix) {
		super(null, name, "", null);
		this.resourcePrefix = resourcePrefix;
		setRepository(this);
	}
	
	protected String getResourceRooot() {
		return resourcePrefix;
	}

	@Override
	public void addRepositoryListener(RepositoryListener l) {
		listeners.add(RepositoryListener.class, l);
	}

	@Override
	public void removeRepositoryListener(RepositoryListener l) {
		listeners.remove(RepositoryListener.class, l);
	}

	protected void fireRefreshed(Folder folder) {
		for (RepositoryListener l : listeners.getListeners(RepositoryListener.class)) {
			l.folderRefreshed(folder);
		}		
	}
	
	@Override
	public Element createXML(Document doc) {	
		return null;
	}

	@Override
	public String getState() {
		return null;
	}
	
	@Override
	public String getIconName() {
		return I18N.getMessage(I18N.getGUIBundle(), "gui.repository.resource.icon");
	}

	@Override
	public RepositoryLocation getLocation() {
		try {
			return new RepositoryLocation(getName(), new String[0]);
		} catch (MalformedRepositoryLocationException e) {
			throw new RuntimeException(e);
		}
	}	
	
	@Override
	public Entry locate(String entry) throws RepositoryException {
		return RepositoryManager.getInstance(null).locate(this, entry, false);
	}

	@Override
	public boolean shouldSave() {
		return false;
	}
	
	@Override
	public void postInstall() {
	}

	@Override
	public void preRemove() {
	}
	
	@Override
	public boolean isConfigurable() {
		return false;
	}

	@Override
	public RepositoryConfigurationPanel makeConfigurationPanel() {
		throw new UnsupportedOperationException("Resource repository cannot be configured.");
	}
}