001    /*
002     * Copyright (C) 2012 eXo Platform SAS.
003     *
004     * This is free software; you can redistribute it and/or modify it
005     * under the terms of the GNU Lesser General Public License as
006     * published by the Free Software Foundation; either version 2.1 of
007     * the License, or (at your option) any later version.
008     *
009     * This software is distributed in the hope that it will be useful,
010     * but WITHOUT ANY WARRANTY; without even the implied warranty of
011     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012     * Lesser General Public License for more details.
013     *
014     * You should have received a copy of the GNU Lesser General Public
015     * License along with this software; if not, write to the Free
016     * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017     * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018     */
019    package org.crsh.vfs.spi.url;
020    
021    import org.crsh.vfs.Path;
022    import org.crsh.vfs.spi.FSMountFactory;
023    import org.crsh.vfs.spi.Mount;
024    
025    import java.io.IOException;
026    import java.net.URISyntaxException;
027    import java.net.URL;
028    import java.util.Enumeration;
029    
030    /**
031     * @author Julien Viet
032     */
033    public class ClassPathMountFactory implements FSMountFactory<Node> {
034    
035      /** . */
036      private final ClassLoader loader;
037    
038      public ClassPathMountFactory(ClassLoader loader) {
039        this.loader = loader;
040      }
041    
042      @Override
043      public Mount<Node> create(Path path) throws IOException {
044        if (path == null) {
045          throw new NullPointerException();
046        }
047        URLDriver driver = new URLDriver();
048        // Add the resources
049        Enumeration<URL> en = loader.getResources(path.getValue().substring(1));
050        while (en.hasMoreElements()) {
051          URL url = en.nextElement();
052          try {
053            driver.merge(url);
054          }
055          catch (URISyntaxException e) {
056            throw new IOException(e);
057          }
058        }
059        return new Mount<Node>(driver, "classpath:" + path.absolute().getValue());
060      }
061    }