001    /*
002      GRANITE DATA SERVICES
003      Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004    
005      This file is part of Granite Data Services.
006    
007      Granite Data Services is free software; you can redistribute it and/or modify
008      it under the terms of the GNU Library General Public License as published by
009      the Free Software Foundation; either version 2 of the License, or (at your
010      option) any later version.
011    
012      Granite Data Services is distributed in the hope that it will be useful, but
013      WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014      FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015      for more details.
016    
017      You should have received a copy of the GNU Library General Public License
018      along with this library; if not, see <http://www.gnu.org/licenses/>.
019    */
020    
021    package org.granite.scan;
022    
023    import java.io.File;
024    import java.io.FileInputStream;
025    import java.io.IOException;
026    import java.io.InputStream;
027    
028    /**
029     * @author Franck WOLFF
030     */
031    public class FileScannedItem extends AbstractScannedItem {
032    
033        private final File root;
034        private final File file;
035    
036        private String relativePath = null;
037    
038        public FileScannedItem(Scanner scanner, FileScannedItem marker, File root, File file) {
039            super(scanner, marker);
040    
041            this.root = root;
042            this.file = file;
043        }
044    
045        public File getRoot() {
046            return root;
047        }
048    
049        public File getFile() {
050            return file;
051        }
052    
053        public long getSize() {
054            return file.length();
055        }
056    
057        public InputStream getInputStream() throws IOException {
058            return new FileInputStream(file);
059        }
060    
061        public String getName() {
062            return file.getName();
063        }
064    
065        public String getRelativePath() {
066            if (relativePath == null) {
067                StringBuffer sb = new StringBuffer();
068                for (File f = file; f != null && !root.equals(f); f = f.getParentFile()) {
069                    if (sb.length() > 0)
070                        sb.insert(0, '/');
071                    sb.insert(0, f.getName());
072                }
073                relativePath = sb.toString();
074            }
075            return relativePath;
076        }
077    
078        public String getAbsolutePath() {
079            return file.getAbsolutePath();
080        }
081    
082        @Override
083        public boolean equals(Object obj) {
084            if (obj == this)
085                return true;
086            if (!(obj instanceof FileScannedItem))
087                return false;
088            return file.equals(((FileScannedItem)obj).file) && root.equals(((FileScannedItem)obj).root);
089        }
090    
091        @Override
092        public int hashCode() {
093            return root.hashCode() + (31 * file.hashCode());
094        }
095    }