1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.tools.ant;
import org.apache.tools.ant.util.FileUtils;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import static org.junit.Assume.assumeTrue;
public class FileUtilities {
/**
* Reads the contents of a file into a String.
* @param project the project containing the base directory the file is in.
* @param fileName the path to the file from the base directory.
* @return the contents of the given file as a string.
* @throws IOException on error reading the file (not existing, not readable etc)
*/
public static String getFileContents(Project project, String fileName) throws IOException {
return getFileContents(new File(project.getBaseDir(), fileName));
}
/**
* Reads the contents of a file into a String.
* @param file the file to read.
* @return the contents of the given file as a string.
* @throws IOException on error reading the file (not existing, not readable etc)
*/
public static String getFileContents(File file) throws IOException {
FileReader rdr = null;
try {
rdr = new FileReader(file);
return FileUtils.readFully(rdr);
}
finally {
if (rdr != null) {
rdr.close();
}
}
}
/**
* Modified the timestamp on a file so it's <tt>seconds</tt> earlier than it was before. Where <tt>file</tt>
* is a directory, this function recurses into all child files (and directories) and reduces their modified
* timestamps by the same range, rather than set all timestamps to the same time.
* @param file the file to change, or the directory to change then recurse into
* @param seconds how many seconds to roll the timestamp back by
*/
public static void rollbackTimetamps(File file, long seconds) {
if (null == file || !file.exists()) {
return;
}
assumeTrue(file.setLastModified(file.lastModified() - (seconds * 1000)));
if (file.isDirectory()) {
File[] children = file.listFiles();
// only possible if exception occurs, or abstract path was not valid
if (children == null) {
return;
}
for (File child : children) {
rollbackTimetamps(child, seconds);
}
}
}
}
|
