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; 021 022 import org.crsh.vfs.spi.FSDriver; 023 024 import java.io.IOException; 025 import java.net.URL; 026 import java.util.ArrayList; 027 import java.util.List; 028 029 /** 030 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> 031 * @version $Revision$ 032 */ 033 class Handle<H> { 034 035 /** . */ 036 private final FSDriver<H> driver; 037 038 /** . */ 039 final Key key; 040 041 /** . */ 042 final H handle; 043 044 Handle(FSDriver<H> driver, H handle) throws IOException { 045 String name = driver.name(handle); 046 boolean dir = driver.isDir(handle); 047 048 // 049 this.driver = driver; 050 this.handle = handle; 051 this.key = new Key(name, dir); 052 } 053 054 Iterable<Handle<H>> children() throws IOException { 055 List<Handle<H>> children = new ArrayList<Handle<H>>(); 056 for (H h : driver.children(handle)) { 057 children.add(new Handle<H>(driver, h)); 058 } 059 return children; 060 } 061 062 URL url() throws IOException { 063 return driver.toURL(handle); 064 } 065 }