/*******************************************************************************
 *
 * Copyright (c) 2004-2009 Oracle Corporation.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * 
 *    Olivier Lamy
 *
 *
 *******************************************************************************/ 

package hudson;

import java.io.Closeable;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import java.util.List;

import org.apache.tools.ant.AntClassLoader;

/**
 * classLoader which use first /WEB-INF/lib/*.jar and /WEB-INF/classes before
 * core classLoader <b>you must use the pluginFirstClassLoader true in the
 * maven-hpi-plugin</b>
 *
 * @author olamy
 * @since 1.371
 */
public class PluginFirstClassLoader
        extends AntClassLoader
        implements Closeable {

    private List<URL> urls = new ArrayList<URL>();

    public void addPathFiles(Collection<File> paths)
            throws IOException {
        for (File f : paths) {
            urls.add(f.toURI().toURL());
            addPathFile(f);
        }
    }

    /**
     * @return List of jar used by the plugin /WEB-INF/lib/*.jar and classes
     * directory /WEB-INF/classes
     */
    public List<URL> getURLs() {
        return urls;
    }

    public void close()
            throws IOException {
        cleanup();
    }

    @Override
    protected Enumeration findResources(String arg0, boolean arg1)
            throws IOException {
        Enumeration enu = super.findResources(arg0, arg1);
        return enu;
    }

    @Override
    protected Enumeration findResources(String name)
            throws IOException {
        Enumeration enu = super.findResources(name);
        return enu;
    }

    @Override
    public URL getResource(String arg0) {
        URL url = super.getResource(arg0);
        return url;
    }

    @Override
    public InputStream getResourceAsStream(String name) {
        InputStream is = super.getResourceAsStream(name);
        return is;
    }
}