01: /*BEGIN_COPYRIGHT_BLOCK
02: *
03: * Copyright (c) 2001-2007, JavaPLT group at Rice University (javaplt@rice.edu)
04: * All rights reserved.
05: *
06: * Redistribution and use in source and binary forms, with or without
07: * modification, are permitted provided that the following conditions are met:
08: * * Redistributions of source code must retain the above copyright
09: * notice, this list of conditions and the following disclaimer.
10: * * Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * * Neither the names of DrJava, the JavaPLT group, Rice University, nor the
14: * names of its contributors may be used to endorse or promote products
15: * derived from this software without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24: * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28: *
29: * This software is Open Source Initiative approved Open Source Software.
30: * Open Source Initative Approved is a trademark of the Open Source Initiative.
31: *
32: * This file is part of DrJava. Download the current version of this project
33: * from http://www.drjava.org/ or http://sourceforge.net/projects/drjava/
34: *
35: * END_COPYRIGHT_BLOCK*/
36:
37: package edu.rice.cs.drjava.config;
38:
39: import java.io.*;
40: import edu.rice.cs.util.FileOps;
41:
42: /** A Configuration object that is backed by a file.
43: * @version $Id: FileConfiguration.java 4255 2007-08-28 19:17:37Z mgricken $
44: */
45: public class FileConfiguration extends SavableConfiguration {
46:
47: public final File file;
48:
49: /** Creates a new Configuration object using the values stored in file f. Any values not specified by f will be
50: * set to defaults from OptionConstants.
51: * @param f Properties file containing customized values
52: */
53: public FileConfiguration(File f) {
54: super (new DefaultOptionMap());
55: file = f.getAbsoluteFile();
56: }
57:
58: /** Calls SavableConfiguration.loadConfiguration, which loads all values from the file, based on the defaults in
59: * OptionConstants.
60: */
61: public void loadConfiguration() throws IOException {
62: loadConfiguration(new BufferedInputStream(new FileInputStream(
63: file)));
64: }
65:
66: /** Saves the current settings to the stored properties file. */
67: public void saveConfiguration() throws IOException {
68: saveConfiguration("DrJava configuration file");
69: }
70:
71: /** Saves the current settings to the stored properties file.
72: * @param header Description of the properties list
73: */
74: public void saveConfiguration(final String header)
75: throws IOException {
76: FileOps.saveFile(new FileOps.DefaultFileSaver(file) {
77: public void saveTo(OutputStream os) throws IOException {
78: saveConfiguration(os, header);
79: }
80:
81: public boolean shouldBackup() {
82: return false;
83: }
84: });
85: }
86: }
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