1 /*
2 * JDiskCatalog
3 *
4 * Copyright 2007 Przemek Więch
5 *
6 * This file is part of JDiskCatalog.
7 *
8 * JDiskCatalog is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 package net.sf.jdiskcatalog.analysis;
24
25 import java.io.File;
26 import java.io.FileInputStream;
27 import java.io.IOException;
28 import java.io.InputStream;
29 import java.util.Map;
30
31 import net.sf.jdiskcatalog.api.FileAnalyser;
32 import net.sf.jdiskcatalog.api.NodeInfo;
33 import net.sf.jdiskcatalog.api.StreamAnalyser;
34
35
36 /**
37 * Runs a StreamAnalyser on a given File.
38 *
39 * @author Przemek Więch <pwiech@losthive.org>
40 * @version $Id$
41 */
42 public class FileStreamAnalyser implements FileAnalyser
43 {
44 private StreamAnalyser analyser;
45
46 public FileStreamAnalyser(StreamAnalyser analyser)
47 {
48 this.analyser = analyser;
49 }
50
51 public Map<String, Object> analyse(File file, NodeInfo fileInfo) throws IOException
52 {
53 if (!file.isFile() || !file.canRead())
54 return null;
55 InputStream stream = new FileInputStream(file);
56 try
57 {
58 return analyser.analyse(stream, fileInfo);
59 }
60 finally
61 {
62 stream.close();
63 }
64 }
65 }