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1
7 package com.tirsen.nanning.attribute;
8
9 import com.thoughtworks.qdox.parser.impl.JFlexLexer;
10 import com.thoughtworks.qdox.parser.impl.Parser;
11 import org.apache.tools.ant.BuildException;
12 import org.apache.tools.ant.DirectoryScanner;
13 import org.apache.tools.ant.Task;
14
15 import java.io.*;
16 import java.util.List  ;
17 import java.util.Iterator ;
18
19
27 public class AttributesCompiler extends Task {
28 private File src;
29 private File dest;
30
31 public void setSrc(File src) {
32 this.src = src;
33 }
34
35 public void setDest(File dest) {
36 this.dest = dest;
37 }
38
39 public void execute() {
40 try {
41 boolean hasCompiled = false;
42
43 String [] files = getJavaFiles();
44 for (int i = 0; i < files.length; i++) {
45 final File javaFile = new File(src, files[i]);
46 final File attributeFile = getAttributeFile(files[i]);
47 if (!attributeFile.exists() || attributeFile.lastModified() < javaFile.lastModified()) {
48 createAttributeFiles(javaFile);
49 if (!hasCompiled) {
50 System.out.println("Compiling attributes for " + src + " into " + dest);
51 hasCompiled = true;
52 }
53 }
54 }
55 } catch (IOException e) {
56 throw new BuildException(e);
57 }
58 }
59
60 private String [] getJavaFiles() {
61 DirectoryScanner scanner = new DirectoryScanner();
62 scanner.setBasedir(src);
63 scanner.setIncludes(new String []{"**/*.java"});
64 scanner.scan();
65 return scanner.getIncludedFiles();
66 }
67
68 private File getAttributeFile(String javaFileName) {
69 File result = new File(dest, javaFileName.substring(0, javaFileName.length() - 5) +
70 PropertyFileAttributeLoader.ATTRIBUTE_FILE_SUFFIX);
71 result.getParentFile().mkdirs();
72 return result;
73 }
74
75 private void createAttributeFiles(File javaFile) throws IOException {
76 List result = parseClassAttribute(javaFile);
77 for (Iterator iterator = result.iterator(); iterator.hasNext();) {
78 ClassPropertiesHelper properties = (ClassPropertiesHelper) iterator.next();
79 properties.store(dest);
80 }
81 }
82
83 List parseClassAttribute(File javaFile) throws IOException {
84 InputStream input = new FileInputStream(javaFile);
85 try {
86 AttributesBuilder builder = new AttributesBuilder();
87 new Parser(new JFlexLexer(input), builder).parse();
88 return builder.getClassPropertiesHelpers();
89 } finally {
90 input.close();
91 }
92 }
93
94 }
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