01: /*
02: This source file is part of Smyle, a database library.
03: For up-to-date information, see http://www.drjava.de/smyle
04: Copyright (C) 2001 Stefan Reich (doc@drjava.de)
05:
06: This library is free software; you can redistribute it and/or
07: modify it under the terms of the GNU Lesser General Public
08: License as published by the Free Software Foundation; either
09: version 2.1 of the License, or (at your option) any later version.
10:
11: This library is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: Lesser General Public License for more details.
15:
16: You should have received a copy of the GNU Lesser General Public
17: License along with this library; if not, write to the Free Software
18: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19:
20: For full license text, see doc/license/lgpl.txt in this distribution
21: */
22:
23: package drjava.smyle.core;
24:
25: import java.io.*;
26: import org.artsProject.mcop.*;
27: import drjava.smyle.*;
28:
29: public class DiskUtil {
30: public static Buffer fileToBuffer(Disk disk, FileRef fr) {
31: return fileToBuffer(disk, fr.id);
32: }
33:
34: public static Buffer fileToBuffer(Disk disk, long id) {
35: try {
36: int l = disk.getFileLength(id);
37: byte[] data = new byte[l];
38: DataInputStream in = new DataInputStream(disk.readFile(id));
39: in.readFully(data);
40: in.close();
41: return new Buffer(data);
42: } catch (IOException e) {
43: throw new SmyleIOException(e);
44: }
45: }
46:
47: public static FileRef bufferToFile(Disk disk, Buffer b) {
48: Disk.NewFile file = disk.createFile();
49: bufferToFile(file, b);
50: return new FileRef(file.getId());
51: }
52:
53: public static void bufferToFile(Disk.NewFile file, Buffer b) {
54: try {
55: OutputStream out = file.getOutputStream();
56: byte[] bytes = b.toByteArray();
57: // TODO: optimize
58: out.write(bytes);
59: out.close();
60: } catch (IOException e) {
61: throw new SmyleIOException(e);
62: }
63: }
64: }
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