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 */ 019 020 package org.crsh.vfs.spi.url; 021 022 import org.crsh.vfs.spi.AbstractFSDriver; 023 024 import java.io.IOException; 025 import java.io.InputStream; 026 import java.net.URISyntaxException; 027 import java.net.URL; 028 import java.util.ArrayList; 029 import java.util.Iterator; 030 031 /** @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> */ 032 public class URLDriver extends AbstractFSDriver<Node> { 033 034 /** . */ 035 private final Node root; 036 037 public URLDriver() { 038 this.root = new Node(); 039 } 040 041 public URLDriver merge(ClassLoader loader) throws IOException, URISyntaxException { 042 root.merge(loader); 043 return this; 044 } 045 046 public URLDriver merge(URL url) throws IOException, URISyntaxException { 047 root.mergeEntries(url); 048 return this; 049 } 050 051 public Node root() throws IOException { 052 return root; 053 } 054 055 public String name(Node handle) throws IOException { 056 return handle.name; 057 } 058 059 public boolean isDir(Node handle) throws IOException { 060 return handle.resources.isEmpty(); 061 } 062 063 public Iterable<Node> children(Node handle) throws IOException { 064 return handle.children(); 065 } 066 067 public long getLastModified(Node handle) throws IOException { 068 return handle.resources.isEmpty() ? 0 : handle.resources.peekFirst().lastModified; 069 } 070 071 public Iterator<InputStream> open(Node handle) throws IOException { 072 ArrayList<InputStream> list = new ArrayList<InputStream>(handle.resources.size()); 073 for (Resource resource : handle.resources) { 074 list.add(resource.streamFactory.open()); 075 } 076 return list.iterator(); 077 } 078 }