KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > edu > rice > cs > drjava > config > FileConfiguration


1 /*BEGIN_COPYRIGHT_BLOCK
2  *
3  * This file is part of DrJava. Download the current version of this project from http://www.drjava.org/
4  * or http://sourceforge.net/projects/drjava/
5  *
6  * DrJava Open Source License
7  *
8  * Copyright (C) 2001-2006 JavaPLT group at Rice University (javaplt@rice.edu). All rights reserved.
9  *
10  * Developed by: Java Programming Languages Team, Rice University, http://www.cs.rice.edu/~javaplt/
11  *
12  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
13  * documentation files (the "Software"), to deal with the Software without restriction, including without limitation
14  * the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
15  * to permit persons to whom the Software is furnished to do so, subject to the following conditions:
16  *
17  * - Redistributions of source code must retain the above copyright notice, this list of conditions and the
18  * following disclaimers.
19  * - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
20  * following disclaimers in the documentation and/or other materials provided with the distribution.
21  * - Neither the names of DrJava, the JavaPLT, Rice University, nor the names of its contributors may be used to
22  * endorse or promote products derived from this Software without specific prior written permission.
23  * - Products derived from this software may not be called "DrJava" nor use the term "DrJava" as part of their
24  * names without prior written permission from the JavaPLT group. For permission, write to javaplt@rice.edu.
25  *
26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
27  * THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
28  * CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
29  * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
30  * WITH THE SOFTWARE.
31  *
32  *END_COPYRIGHT_BLOCK*/
33
34 package edu.rice.cs.drjava.config;
35 import java.io.*;
36 import edu.rice.cs.util.FileOps;
37
38 /** A Configuration object that is backed by a file.
39  * @version $Id: FileConfiguration.java 3888 2006-06-15 12:06:50Z rcartwright $
40  */
41 public class FileConfiguration extends SavableConfiguration {
42   
43   public final File file;
44   
45   /** Creates a new Configuration object using the values stored in file f. Any values not specified by f will be
46    * set to defaults from OptionConstants.
47    * @param f Properties file containing customized values
48    */
49   public FileConfiguration(File f) {
50     super(new DefaultOptionMap());
51     file = f.getAbsoluteFile();
52   }
53   
54   /** Calls SavableConfiguration.loadConfiguration, which loads all values from the file, based on the defaults in
55    * OptionConstants.
56    */
57   public void loadConfiguration() throws IOException {
58     loadConfiguration(new BufferedInputStream(new FileInputStream(file)));
59   }
60   
61   /** Saves the current settings to the stored properties file. */
62   public void saveConfiguration() throws IOException {
63     saveConfiguration("DrJava configuration file");
64   }
65   
66   /** Saves the current settings to the stored properties file.
67    * @param header Description of the properties list
68    */
69   public void saveConfiguration(final String JavaDoc header) throws IOException {
70     FileOps.saveFile(new FileOps.DefaultFileSaver(file) {
71       public void saveTo(OutputStream os) throws IOException {
72         saveConfiguration(os,header);
73       }
74       public boolean shouldBackup() {
75         return false;
76       }
77     });
78   }
79 }
80
Popular Tags