Skip to content

Commit 29119de

Browse files
author
Scott Sanders
committed
Savepoint. Does not compile or work yet. More work this weekend.
git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/io/trunk@140288 13f79535-47bb-0310-9956-ffa450edef68
1 parent 6b4f468 commit 29119de

5 files changed

Lines changed: 806 additions & 0 deletions

File tree

‎src/conf/MANIFEST.MF‎

Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
1+
Extension-Name: @package@
2+
Specification-Vendor: Apache Software Foundation
3+
Specification-Version: 1.0
4+
Implementation-Vendor: Apache Software Foundation
5+
Implementation-Version: @version@

‎src/java/org/apache/commons/io/FileUtils.java‎

Lines changed: 300 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,300 @@
1+
package org.apache.commons.io;
2+
3+
/* ====================================================================
4+
* The Apache Software License, Version 1.1
5+
*
6+
* Copyright (c) 2001 The Apache Software Foundation. All rights
7+
* reserved.
8+
*
9+
* Redistribution and use in source and binary forms, with or without
10+
* modification, are permitted provided that the following conditions
11+
* are met:
12+
*
13+
* 1. Redistributions of source code must retain the above copyright
14+
* notice, this list of conditions and the following disclaimer.
15+
*
16+
* 2. Redistributions in binary form must reproduce the above copyright
17+
* notice, this list of conditions and the following disclaimer in
18+
* the documentation and/or other materials provided with the
19+
* distribution.
20+
*
21+
* 3. The end-user documentation included with the redistribution,
22+
* if any, must include the following acknowledgment:
23+
* "This product includes software developed by the
24+
* Apache Software Foundation (http://www.apache.org/)."
25+
* Alternately, this acknowledgment may appear in the software itself,
26+
* if and wherever such third-party acknowledgments normally appear.
27+
*
28+
* 4. The names "Apache" and "Apache Software Foundation" and
29+
* "Apache Turbine" must not be used to endorse or promote products
30+
* derived from this software without prior written permission. For
31+
* written permission, please contact apache@apache.org.
32+
*
33+
* 5. Products derived from this software may not be called "Apache",
34+
* "Apache Turbine", nor may "Apache" appear in their name, without
35+
* prior written permission of the Apache Software Foundation.
36+
*
37+
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38+
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39+
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40+
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
41+
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42+
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43+
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44+
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45+
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46+
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47+
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48+
* SUCH DAMAGE.
49+
* ====================================================================
50+
*
51+
* This software consists of voluntary contributions made by many
52+
* individuals on behalf of the Apache Software Foundation. For more
53+
* information on the Apache Software Foundation, please see
54+
* <http://www.apache.org/>.
55+
*/
56+
57+
import java.io.File;
58+
import java.io.FileInputStream;
59+
import java.io.FileOutputStream;
60+
61+
/**
62+
* Common {@link java.io.File} manipulation routines.
63+
*
64+
* Taken from the commons-utils repo.
65+
*
66+
* @author <a href="mailto:sanders@apache.org">Scott Sanders</a>
67+
* @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a>
68+
* @author <a href="mailto:Christoph.Reck@dlr.de">Christoph.Reck</a>
69+
* @version $Id: FileUtils.java,v 1.1 2002/01/26 02:47:42 sanders Exp $
70+
*/
71+
public class FileUtils
72+
{
73+
/**
74+
* The number of bytes in a kilobyte.
75+
*/
76+
public static final int ONE_KB = 1024;
77+
78+
/**
79+
* The number of bytes in a megabyte.
80+
*/
81+
public static final int ONE_MB = ONE_KB * ONE_KB;
82+
83+
/**
84+
* The number of bytes in a gigabyte.
85+
*/
86+
public static final int ONE_GB = ONE_KB * ONE_MB;
87+
88+
/**
89+
* Returns a human-readable version of the file size (original is in
90+
* bytes).
91+
*
92+
* @param size The number of bytes.
93+
* @return A human-readable display value (includes units).
94+
*/
95+
public static String byteCountToDisplaySize(int size)
96+
{
97+
String displaySize;
98+
99+
if (size / ONE_GB > 0)
100+
{
101+
displaySize = String.valueOf(size / ONE_GB) + " GB";
102+
}
103+
else if (size / ONE_MB > 0)
104+
{
105+
displaySize = String.valueOf(size / ONE_MB) + " MB";
106+
}
107+
else if (size / ONE_KB > 0)
108+
{
109+
displaySize = String.valueOf(size / ONE_KB) + " KB";
110+
}
111+
else
112+
{
113+
displaySize = String.valueOf(size) + " bytes";
114+
}
115+
116+
return displaySize;
117+
}
118+
119+
/**
120+
* Returns the directory path portion of a file specification string.
121+
* Matches the equally named unix command.
122+
* @return The directory portion excluding the ending file separator.
123+
*/
124+
public static String dirname(String filename)
125+
{
126+
int i = filename.lastIndexOf(File.separator);
127+
return (i >= 0 ? filename.substring(0, i) : "");
128+
}
129+
130+
/**
131+
* Returns the filename portion of a file specification string.
132+
* @return The filename string with extension.
133+
*/
134+
public static String filename(String filename)
135+
{
136+
int i = filename.lastIndexOf(File.separator);
137+
return (i >= 0 ? filename.substring(i + 1) : filename);
138+
}
139+
140+
/**
141+
* Returns the filename portion of a file specification string.
142+
* Matches the equally named unix command.
143+
* @return The filename string without extension.
144+
*/
145+
public static String basename(String filename)
146+
{
147+
return basename(filename, extension(filename));
148+
}
149+
150+
/**
151+
* Returns the filename portion of a file specification string.
152+
* Matches the equally named unix command.
153+
*/
154+
public static String basename(String filename, String suffix)
155+
{
156+
int i = filename.lastIndexOf(File.separator) + 1;
157+
int lastDot = ((suffix != null) && (suffix.length() > 0))
158+
? filename.lastIndexOf(suffix) : -1;
159+
160+
if (lastDot >= 0)
161+
{
162+
return filename.substring(i, lastDot);
163+
}
164+
else if (i > 0)
165+
{
166+
return filename.substring(i);
167+
}
168+
else
169+
{
170+
return filename; // else returns all (no path and no extension)
171+
}
172+
}
173+
174+
/**
175+
* Returns the extension portion of a file specification string.
176+
* This everything after the last dot '.' in the filename (including
177+
* the dot).
178+
*/
179+
public static String extension(String filename)
180+
{
181+
int lastDot = filename.lastIndexOf('.');
182+
183+
if (lastDot >= 0)
184+
{
185+
return filename.substring(lastDot);
186+
}
187+
else
188+
{
189+
return "";
190+
}
191+
}
192+
193+
/**
194+
* Check if a file exits.
195+
*
196+
* @param fileName The name of the file to check.
197+
* @return true if file exists.
198+
*/
199+
public static boolean fileExists(String fileName)
200+
{
201+
File file = new File(fileName);
202+
return file.exists();
203+
}
204+
205+
/**
206+
* Reads the contents of a file.
207+
*
208+
* @param fileName The name of the file to read.
209+
* @return The file contents or null if read failed.
210+
*/
211+
public static String fileRead(String fileName) throws Exception
212+
{
213+
StringBuffer buf = new StringBuffer();
214+
215+
FileInputStream in = new FileInputStream(fileName);
216+
217+
int count;
218+
byte[] b = new byte[512];
219+
while ( (count = in.read(b)) > 0 ) // blocking read
220+
{
221+
buf.append( new String(b, 0, count) );
222+
}
223+
224+
in.close();
225+
226+
return buf.toString();
227+
}
228+
229+
/**
230+
* Writes data to a file. The file will be created if it does not exist.
231+
*
232+
* @param fileName The name of the file to write.
233+
* @param data The content to write to the file.
234+
*/
235+
public static void fileWrite(String fileName, String data) throws Exception
236+
{
237+
FileOutputStream out = new FileOutputStream(fileName);
238+
out.write( data.getBytes() );
239+
out.close();
240+
}
241+
242+
/**
243+
* Deletes a file.
244+
*
245+
* @param fileName The name of the file to delete.
246+
*/
247+
public static void fileDelete(String fileName)
248+
{
249+
File file = new File(fileName);
250+
file.delete();
251+
}
252+
253+
/**
254+
* Waits for NFS to propagate a file creation, imposing a timeout.
255+
*
256+
* @param fileName The name of the file.
257+
* @param seconds The maximum time in seconds to wait.
258+
* @return True if file exists.
259+
*/
260+
public static boolean waitFor(String fileName, int seconds)
261+
{
262+
File file = new File(fileName);
263+
int timeout = 0;
264+
int tick = 0;
265+
while ( ! file.exists() )
266+
{
267+
if (tick++ >= 10)
268+
{
269+
tick = 0;
270+
if (timeout++ > seconds)
271+
{
272+
return false;
273+
}
274+
}
275+
try
276+
{
277+
Thread.sleep(100);
278+
}
279+
catch(InterruptedException ignore)
280+
{
281+
}
282+
catch(Exception ex)
283+
{
284+
break;
285+
}
286+
}
287+
return true;
288+
}
289+
290+
/**
291+
* Creates a file handle.
292+
*
293+
* @param fileName The name of the file.
294+
* @return A <code>File</code> instance.
295+
*/
296+
public static File getFile(String fileName)
297+
{
298+
return new File(fileName);
299+
}
300+
}

0 commit comments

Comments
 (0)