1 /*
2  * Copyright (C) 2009 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package signature.converter.doclet;
18 
19 import java.io.IOException;
20 import java.io.PrintWriter;
21 import java.io.StringWriter;
22 import java.lang.reflect.Constructor;
23 import java.util.Set;
24 
25 import signature.converter.Visibility;
26 import signature.io.IApiLoader;
27 import signature.model.IApi;
28 
29 import com.sun.javadoc.RootDoc;
30 import com.sun.tools.javac.util.Context;
31 import com.sun.tools.javac.util.ListBuffer;
32 import com.sun.tools.javac.util.Options;
33 import com.sun.tools.javadoc.JavadocTool;
34 import com.sun.tools.javadoc.Messager;
35 import com.sun.tools.javadoc.ModifierFilter;
36 import com.sun.tools.javadoc.RootDocImpl;
37 
38 public class DocletFactory implements IApiLoader {
39 
loadApi(String name, Visibility visibility, Set<String> fileNames, Set<String> packageNames)40     public IApi loadApi(String name, Visibility visibility,
41             Set<String> fileNames, Set<String> packageNames) throws
42             IOException {
43         for (String packageName : packageNames) {
44             if (packageName.length() == 0)
45                 throw new IllegalArgumentException(
46                         "default package not supported by DocletFactory");
47         }
48         StringBuffer buf = new StringBuffer();
49         for (String filename : fileNames) {
50             buf.append(filename);
51             buf.append(":");
52         }
53         String sourcepath = buf.substring(0, buf.length() - 1);
54         RootDoc root = getRootDoc(visibility, sourcepath, packageNames);
55         DocletToSigConverter converter = new DocletToSigConverter();
56         IApi api = converter.convertDocletRoot(name, root, visibility,
57                 packageNames);
58         return api;
59     }
60 
getRootDoc(Visibility visibility, String sourcepath, java.util.Set<String> packages)61     private static RootDoc getRootDoc(Visibility visibility, String sourcepath,
62             java.util.Set<String> packages) throws IOException {
63         long accessModifier = 0;
64         switch (visibility) {
65         case PRIVATE:
66             accessModifier |= com.sun.tools.javac.code.Flags.PRIVATE; // 0x2
67         case PACKAGE:                                              // 0x80000000
68             accessModifier |= com.sun.tools.javadoc.ModifierFilter.PACKAGE;
69         case PROTECTED:
70             accessModifier |= com.sun.tools.javac.code.Flags.PROTECTED; // 0x4
71         case PUBLIC:
72             accessModifier |= com.sun.tools.javac.code.Flags.PUBLIC; // 0x1
73         }
74 
75         ModifierFilter showAccess = new ModifierFilter(accessModifier);
76         boolean breakiterator = false;
77         boolean quiet = false;
78         boolean legacy = false;
79         boolean docClasses = false;
80 
81         String docLocale = "";
82         String encoding = null;
83         ListBuffer<String> javaNames = new ListBuffer<String>();
84         for (String p : packages)
85             javaNames.append(p);
86 
87         ListBuffer<String[]> options = new ListBuffer<String[]>();
88 
89         options.append(new String[] {"-sourcepath", sourcepath});
90 
91         ListBuffer<String> subPackages = new ListBuffer<String>();
92         ListBuffer<String> excludedPackages = new ListBuffer<String>();
93 
94         Context context = new Context();
95         Options compOpts = Options.instance(context);
96         compOpts.put("-sourcepath", sourcepath);
97 
98         Constructor<Messager> c;
99         try {
100             // c = Messager.class.getDeclaredConstructor(Context.class,
101             // String.class);
102             // c.setAccessible(true);
103             // c.newInstance(context, "SigTest");
104             c = Messager.class.getDeclaredConstructor(Context.class,
105                     String.class, PrintWriter.class, PrintWriter.class,
106                     PrintWriter.class);
107             c.setAccessible(true);
108             PrintWriter err = new PrintWriter(new StringWriter());
109             PrintWriter warn = new PrintWriter(new StringWriter());
110             PrintWriter notice = new PrintWriter(new StringWriter());
111             c.newInstance(context, "SigTest", err, warn, notice);
112         } catch (Exception e) {
113             throw new RuntimeException(e);
114         }
115 
116         JavadocTool comp = JavadocTool.make0(context);
117         RootDocImpl root = comp.getRootDocImpl(docLocale, encoding, showAccess,
118                 javaNames.toList(), options.toList(), breakiterator,
119                 subPackages.toList(), excludedPackages.toList(), docClasses,
120                 legacy, quiet);
121         return root;
122     }
123 
124 }
125