1 /*
2 * Copyright (c) 2001 by
3 * Siegfried GOESCHL <mailto:siegfried.goeschl@itserv.at>;
4 *
5 * This program is free software.
6 *
7 * You may redistribute it and/or modify it under the terms of the GNU
8 * General Public License as published by the Free Software Foundation.
9 * Version 2 of the license should be included with this distribution in
10 * the file LICENSE, as well as License.html. If the license is not
11 * included with this distribution, you may find a copy at the FSF web
12 * site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
13 * Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
14 *
15 * THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
16 * NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
17 * OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
18 * CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
19 * REDISTRIBUTION OF THIS SOFTWARE.
20 */
21
22 package junit.extensions.util;
23
24
25 import java.io.File;
26 import java.io.InputStream;
27 import java.io.FileInputStream;
28 import java.io.FileOutputStream;
29
30
31 /***
32 * This class provides some methods for load and saving data from/to a file
33 *
34 * @author Siegfried GOESCHL
35 * @version $Id: FileUtils.java,v 1.1 2002/08/29 14:06:44 wdsgoe Exp $
36 */
37
38 public class FileUtils {
39
40 /***
41 * Load the given file and return the content.
42 *
43 * @param file the file to be loaded
44 * @return the content of the file
45 */
46
47 public static byte[] loadBinary(File file) {
48 try {
49 FileInputStream fileinputstream = new FileInputStream(file);
50 byte[] is = new byte[fileinputstream.available()];
51
52 fileinputstream.read(is);
53 fileinputstream.close();
54 return is;
55 } catch (Exception e) {
56 throw new RuntimeException(e.getMessage());
57 }
58 }
59
60 /***
61 * Load the given file and return the content.
62 *
63 * @param parentDir the parent directory
64 * @param name the name of the file within the parentb directory
65 * @return the content of the file
66 */
67
68 public static byte[] loadBinary(File parentDir, String name) {
69 return loadBinary(new File(parentDir, name));
70 }
71
72 /***
73 * Load the given file and return the content.
74 *
75 * @param name the name of the file to be loaded
76 * @return the content of the file
77 */
78
79 public static byte[] loadBinary(String name) {
80 return loadBinary(new File(name));
81 }
82
83 /***
84 * Save the binary content to a file
85 *
86 * @param name the name of the file to store the data
87 * @param data the data to be stored
88 */
89
90 public static void saveBinary(String name, byte[] data) {
91 saveBinary(new File(name), data);
92 }
93
94 /***
95 * Save the binary content to a file
96 *
97 * @param parentDir the parent directory where to store the data
98 * @param name the name of the file to store the data
99 * @param data the data to be stored
100 */
101
102 public static void saveBinary(File parentDir, String name, byte[] data) {
103 saveBinary(new File(parentDir, name), data);
104 }
105
106 /***
107 * Save the binary content to a file
108 *
109 * @param file the file to store the data
110 * @param data the data to be stored
111 */
112
113 public static void saveBinary(File file, byte[] data) {
114 try {
115 FileOutputStream fileoutputstream = new FileOutputStream(file);
116
117 fileoutputstream.write(data);
118 fileoutputstream.close();
119 } catch (Exception e) {
120 throw new RuntimeException(e.getMessage());
121 }
122 }
123
124 /***
125 * Save the content of an input stream to a file
126 *
127 * @param name the name of the file to store the data
128 * @param is the input stream to write to a file
129 */
130
131 public static void saveInputStream(String name, InputStream is) {
132 saveInputStream(new File(name), is);
133 }
134
135 /***
136 * Save the content of an input stream to a file
137 *
138 * @param parentDir the parent directory where to store the data
139 * @param name the name of the file to store the data
140 * @param is the input stream to write to a file
141 */
142
143 public static void saveInputStream(File parentDir, String name, InputStream is) {
144 saveInputStream(new File(parentDir, name), is);
145 }
146
147 /***
148 * Save the content of an input stream to a file
149 *
150 * @param file the file to store the data
151 * @param is the input stream to write to a file
152 */
153
154 public static void saveInputStream(File file, InputStream is) {
155 try {
156 byte[] data = new byte[is.available()];
157
158 is.read(data);
159 saveBinary(file, data);
160 } catch (Exception e) {
161 throw new RuntimeException(e.getMessage());
162 }
163 }
164 }
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