001    /*
002     * Copyright (C) 2010 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    
020    package org.crsh.vfs.spi.jarurl;
021    
022    import org.crsh.vfs.Path;
023    
024    import java.net.MalformedURLException;
025    import java.net.URL;
026    import java.util.HashMap;
027    import java.util.Map;
028    import java.util.jar.JarEntry;
029    
030    /**
031     * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
032     * @version $Revision$
033     */
034    public class Handle {
035    
036      /** . */
037      private final JarURLDriver driver;
038    
039      /** . */
040      final Path path;
041    
042      /** . */
043      Map<String, Handle> children;
044    
045      /** . */
046      JarEntry entry;
047    
048      Handle(JarURLDriver driver, String path) {
049        this.driver = driver;
050        this.path = Path.get("/" + path);
051        this.children = new HashMap<String, Handle>();
052      }
053    
054      public boolean isDir() {
055         return entry == null || entry.isDirectory();
056      }
057    
058      public URL toURL() throws IllegalArgumentException, IllegalStateException, MalformedURLException {
059        if (isDir()) {
060          throw new IllegalStateException("Cannot create dir URL");
061        }
062        String file = driver.jarURL.toString() + "!/" + entry.getName();
063        return new URL("jar", "", file);
064      }
065    }