PropertiesParserTask.java revision 2776:aa568700edd1 
1/*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package anttasks;
27
28import java.io.File;
29import java.util.ArrayList;
30import java.util.Arrays;
31import java.util.List;
32
33import propertiesparser.PropertiesParser;
34import propertiesparser.gen.ClassGenerator;
35import org.apache.tools.ant.BuildException;
36import org.apache.tools.ant.DirectoryScanner;
37import org.apache.tools.ant.Project;
38import org.apache.tools.ant.taskdefs.MatchingTask;
39import org.apache.tools.ant.types.Path;
40import org.apache.tools.ant.types.Resource;
41
42public class PropertiesParserTask extends MatchingTask {
43    public void addSrc(Path src) {
44        if (srcDirs == null)
45            srcDirs = new Path(getProject());
46        srcDirs.add(src);
47    }
48
49    public void setDestDir(File destDir) {
50        this.destDir = destDir;
51    }
52
53    @Override
54    public void execute() {
55        List<String> mainOpts = new ArrayList<String>();
56        int count = 0;
57        for (String dir : srcDirs.list()) {
58            File baseDir = getProject().resolveFile(dir);
59            DirectoryScanner s = getDirectoryScanner(baseDir);
60            for (String path : s.getIncludedFiles()) {
61                if (path.endsWith(".properties")) {
62                    File srcFile = new File(baseDir, path);
63                    String destPath =
64                            path.substring(0, path.lastIndexOf(File.separator) + 1) +
65                                    ClassGenerator.toplevelName(srcFile) + ".java";
66                    File destFile = new File(this.destDir, destPath);
67                    File destDir = destFile.getParentFile();
68                    // Arguably, the comparison in the next line should be ">", not ">="
69                    // but that assumes the resolution of the last modified time is fine
70                    // grained enough; in practice, it is better to use ">=".
71                    if (destFile.exists() && destFile.lastModified() >= srcFile.lastModified())
72                        continue;
73                    destDir.mkdirs();
74                    mainOpts.add("-compile");
75                    mainOpts.add(srcFile.getPath());
76                    mainOpts.add(destDir.getPath());
77                    count++;
78                }
79            }
80        }
81        if (mainOpts.size() > 0) {
82            log("Generating " + count + " resource files to " + destDir, Project.MSG_INFO);
83            PropertiesParser pp = new PropertiesParser(msg -> log(msg, Project.MSG_INFO));
84            boolean ok = pp.run(mainOpts.toArray(new String[mainOpts.size()]));
85            if (!ok)
86                throw new BuildException("PropertiesParser failed.");
87        }
88    }
89
90    private Path srcDirs;
91    private File destDir;
92}
93