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
021package org.granite.scan;
022
023import java.io.File;
024import java.io.FileInputStream;
025import java.io.IOException;
026import java.io.InputStream;
027
028/**
029 * @author Franck WOLFF
030 */
031public 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}