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.file; 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.File; 026 import java.io.IOException; 027 028 /** 029 * @author Julien Viet 030 */ 031 public class FileMountFactory implements FSMountFactory<File> { 032 033 /** . */ 034 private final File root; 035 036 /** . */ 037 private final File absoluteRoot; 038 039 public FileMountFactory(File root) throws IOException { 040 if (root == null) { 041 throw new NullPointerException(); 042 } 043 044 // 045 File absoluteRoot = root; 046 while (true) { 047 File parent = absoluteRoot.getParentFile(); 048 if (parent != null && parent.isDirectory()) { 049 absoluteRoot = parent; 050 } else { 051 break; 052 } 053 } 054 055 // 056 this.root = root; 057 this.absoluteRoot = absoluteRoot; 058 } 059 060 @Override 061 public Mount<File> create(Path path) throws IOException { 062 File file = path.isAbsolute() ? absoluteRoot : root; 063 for (String name : path) { 064 file = new File(file, name); 065 } 066 // Always use absolute path here 067 return new Mount<File>(new FileDriver(file), "file:" + file.getAbsolutePath()); 068 } 069 }