1   /**
2    * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.tools;
24  
25  import com.liferay.portal.kernel.util.StringMaker;
26  import com.liferay.portal.kernel.util.StringUtil;
27  import com.liferay.portal.tools.comparator.JavaMethodComparator;
28  import com.liferay.portal.tools.servicebuilder.ServiceBuilder;
29  import com.liferay.util.TextFormatter;
30  
31  import com.thoughtworks.qdox.JavaDocBuilder;
32  import com.thoughtworks.qdox.model.JavaClass;
33  import com.thoughtworks.qdox.model.JavaMethod;
34  import com.thoughtworks.qdox.model.JavaParameter;
35  import com.thoughtworks.qdox.model.Type;
36  
37  import java.io.File;
38  import java.io.IOException;
39  
40  import java.util.Arrays;
41  import java.util.Iterator;
42  import java.util.LinkedHashSet;
43  import java.util.Set;
44  import java.util.TreeSet;
45  
46  /**
47   * <a href="CopyInterfaceBuilder.java.html"><b><i>View Source</i></b></a>
48   *
49   * @author Brian Wing Shun Chan
50   *
51   */
52  public class CopyInterfaceBuilder {
53  
54      public static void main(String[] args) {
55          if (args.length == 2) {
56              new CopyInterfaceBuilder(args[0], args[1]);
57          }
58          else {
59              throw new IllegalArgumentException();
60          }
61      }
62  
63      public CopyInterfaceBuilder(String parentDir, String srcFile) {
64          try {
65              _copyInterface(parentDir, srcFile);
66          }
67          catch (Exception e) {
68              e.printStackTrace();
69          }
70      }
71  
72      private void _copyInterface(String parentDir, String srcFile)
73          throws IOException {
74  
75          JavaClass javaClass = _getJavaClass(parentDir, srcFile);
76  
77          JavaMethod[] methods = javaClass.getMethods();
78  
79          Arrays.sort(methods, new JavaMethodComparator());
80  
81          StringMaker sm = new StringMaker();
82  
83          // Package
84  
85          sm.append("package " + javaClass.getPackage() + ";");
86  
87          // Imports
88  
89          sm.append("[$IMPORTS$]");
90  
91          // Class declaration
92  
93          sm.append("public class Copy" + javaClass.getName() + " implements " + javaClass.getName() + " {");
94  
95          String varName = "_" + TextFormatter.format(javaClass.getName(), TextFormatter.I);
96  
97          // Methods
98  
99          Set<String> imports = new TreeSet<String>();
100 
101         for (int i = 0; i < methods.length; i++) {
102             JavaMethod javaMethod = methods[i];
103 
104             String methodName = javaMethod.getName();
105 
106             if (javaMethod.isPublic()) {
107                 String returnValueName = javaMethod.getReturns().getValue();
108 
109                 imports.add(returnValueName);
110 
111                 sm.append("public " + javaMethod.getReturns().getJavaClass().getName() + _getDimensions(javaMethod.getReturns()) + " " + methodName + "(");
112 
113                 JavaParameter[] parameters = javaMethod.getParameters();
114 
115                 for (int j = 0; j < parameters.length; j++) {
116                     JavaParameter javaParameter = parameters[j];
117 
118                     sm.append(javaParameter.getType().getJavaClass().getName() + _getDimensions(javaParameter.getType()) + " " + javaParameter.getName());
119 
120                     imports.add(javaParameter.getType().getValue());
121 
122                     if ((j + 1) != parameters.length) {
123                         sm.append(", ");
124                     }
125                 }
126 
127                 sm.append(")");
128 
129                 Type[] thrownExceptions = javaMethod.getExceptions();
130 
131                 Set<String> newExceptions = new LinkedHashSet<String>();
132 
133                 for (int j = 0; j < thrownExceptions.length; j++) {
134                     Type thrownException = thrownExceptions[j];
135 
136                     newExceptions.add(thrownException.getJavaClass().getName());
137 
138                     imports.add(thrownException.getValue());
139                 }
140 
141                 if (newExceptions.size() > 0) {
142                     sm.append(" throws ");
143 
144                     Iterator<String> itr = newExceptions.iterator();
145 
146                     while (itr.hasNext()) {
147                         sm.append(itr.next());
148 
149                         if (itr.hasNext()) {
150                             sm.append(", ");
151                         }
152                     }
153                 }
154 
155                 sm.append("{");
156 
157                 if (!returnValueName.equals("void")) {
158                     sm.append("return ");
159                 }
160 
161                 sm.append(varName + "." + methodName + "(");
162 
163                 for (int j = 0; j < parameters.length; j++) {
164                     JavaParameter javaParameter = parameters[j];
165 
166                     sm.append(javaParameter.getName());
167 
168                     if ((j + 1) != parameters.length) {
169                         sm.append(", ");
170                     }
171                 }
172 
173                 sm.append(");");
174                 sm.append("}");
175             }
176         }
177 
178         // Fields
179 
180         sm.append("private " + javaClass.getName() + " " + varName + ";");
181 
182         // Class close brace
183 
184         sm.append("}");
185 
186         // Imports
187 
188         String content = sm.toString();
189 
190         sm = new StringMaker();
191 
192         Iterator<String> itr = imports.iterator();
193 
194         while (itr.hasNext()) {
195             String importClass = itr.next();
196 
197             if (!importClass.equals("boolean") && !importClass.equals("double") && !importClass.equals("int") && !importClass.equals("long") && !importClass.equals("short") && !importClass.equals("void")) {
198                 sm.append("import " + importClass + ";");
199             }
200         }
201 
202         content = StringUtil.replace(content, "[$IMPORTS$]", sm.toString());
203 
204         // Write file
205 
206         File file = new File(parentDir + "/" + StringUtil.replace(javaClass.getPackage(), ".", "/") + "/Copy" + javaClass.getName() + ".java");
207 
208         ServiceBuilder.writeFile(file, content);
209     }
210 
211     private String _getDimensions(Type type) {
212         String dimensions = "";
213 
214         for (int i = 0; i < type.getDimensions(); i++) {
215             dimensions += "[]";
216         }
217 
218         return dimensions;
219     }
220 
221     private JavaClass _getJavaClass(String parentDir, String srcFile)
222         throws IOException {
223 
224         String className = StringUtil.replace(
225             srcFile.substring(0, srcFile.length() - 5), "/", ".");
226 
227         JavaDocBuilder builder = new JavaDocBuilder();
228 
229         builder.addSource(new File(parentDir + "/" + srcFile));
230 
231         return builder.getClassByName(className);
232     }
233 
234 }