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878ddf1f | 1 | /** @file\r |
2 | This file is to define OnDependency class.\r | |
3 | \r | |
4 | Copyright (c) 2006, Intel Corporation\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | --*/\r | |
14 | package org.tianocore.build.global;\r | |
15 | \r | |
16 | import org.apache.tools.ant.BuildException;\r | |
17 | import org.apache.tools.ant.Task;\r | |
18 | import org.apache.tools.ant.taskdefs.Sequential;\r | |
19 | \r | |
20 | import java.io.File;\r | |
21 | import java.util.Iterator;\r | |
22 | \r | |
23 | /**\r | |
24 | Class OnDepdendency is used to check the timestamp between source files and\r | |
25 | target files, which can be used to determine if the target files are needed to\r | |
26 | be re-generated from source files.\r | |
27 | **/\r | |
28 | public class OnDependency extends Task {\r | |
29 | ///\r | |
30 | /// source files list\r | |
31 | ///\r | |
32 | private DpFileList sources = null;\r | |
33 | ///\r | |
34 | /// target files list\r | |
35 | ///\r | |
36 | private DpFileList targets = null;\r | |
37 | ///\r | |
38 | /// tasks to be performed to generate target files\r | |
39 | ///\r | |
40 | private Sequential task = null;\r | |
41 | \r | |
42 | ///\r | |
43 | /// An empty constructor for an ANT task can avoid some potential issues\r | |
44 | ///\r | |
45 | public OnDependency(){\r | |
46 | }\r | |
47 | \r | |
48 | /**\r | |
49 | Standard execute method of ANT task\r | |
50 | **/\r | |
51 | public void execute() {\r | |
52 | if (isOutOfDate() && task != null) {\r | |
53 | task.perform();\r | |
54 | }\r | |
55 | }\r | |
56 | \r | |
57 | ///\r | |
58 | /// check if the target files are outofdate\r | |
59 | ///\r | |
60 | private boolean isOutOfDate() {\r | |
61 | ///\r | |
62 | /// if no source files specified, take it as a fresh start\r | |
63 | ///\r | |
64 | if (sources.nameList.size() == 0) {\r | |
65 | return true;\r | |
66 | }\r | |
67 | \r | |
68 | Iterator dstIt = targets.nameList.iterator();\r | |
69 | while (dstIt.hasNext()) {\r | |
70 | String dstFileName = (String)dstIt.next();\r | |
71 | File dstFile = new File(dstFileName);\r | |
72 | if (!dstFile.exists()) {\r | |
73 | return true;\r | |
74 | }\r | |
75 | \r | |
76 | long dstTimeStamp = dstFile.lastModified();\r | |
77 | Iterator srcIt = sources.nameList.iterator();\r | |
78 | while (srcIt.hasNext()) {\r | |
79 | String srcFileName = (String)srcIt.next();\r | |
80 | File srcFile = new File(srcFileName);\r | |
81 | if (!srcFile.exists()) {\r | |
82 | throw new BuildException(srcFileName + " doesn't exist !!!");\r | |
83 | }\r | |
84 | \r | |
85 | if (dstTimeStamp < srcFile.lastModified()) {\r | |
86 | return true;\r | |
87 | }\r | |
88 | }\r | |
89 | }\r | |
90 | \r | |
91 | return false;\r | |
92 | }\r | |
93 | \r | |
94 | /**\r | |
95 | Add method of ANT task for nested element with Sequential type\r | |
96 | \r | |
97 | @param task Sequential object which contains tasks for generating target files\r | |
98 | **/\r | |
99 | public void addSequential(Sequential task) {\r | |
100 | this.task = task;\r | |
101 | }\r | |
102 | \r | |
103 | /**\r | |
104 | Add method of ANT task for nested element with DpFileList type\r | |
105 | \r | |
106 | @param sources DpFileList object which contains the list of source files\r | |
107 | **/\r | |
108 | public void addSourcefiles(DpFileList sources) {\r | |
109 | this.sources = sources;\r | |
110 | }\r | |
111 | \r | |
112 | /**\r | |
113 | Add method of ANT task for nested element with DpFileList type\r | |
114 | \r | |
115 | @param targets DpFileList object which contains the list of target files\r | |
116 | **/\r | |
117 | public void addTargetfiles(DpFileList targets) {\r | |
118 | this.targets = targets;\r | |
119 | }\r | |
120 | }\r | |
121 | \r |