KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > hivemind > service > impl > ClassFactoryImpl


1 // Copyright 2004, 2005 The Apache Software Foundation
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 package org.apache.hivemind.service.impl;
16
17 import javassist.CtClass;
18
19 import org.apache.hivemind.ApplicationRuntimeException;
20 import org.apache.hivemind.service.ClassFab;
21 import org.apache.hivemind.service.ClassFactory;
22 import org.apache.hivemind.service.InterfaceFab;
23
24 /**
25  * Implementation of {@link org.apache.hivemind.service.ClassFactory}.
26  *
27  * @author Howard Lewis Ship
28  */
29 public class ClassFactoryImpl implements ClassFactory
30 {
31     /**
32      * ClassPool shared by all modules (all CtClassSource instances).
33      */
34     private HiveMindClassPool _pool = new HiveMindClassPool();
35
36     private CtClassSource _classSource = new CtClassSource(_pool);
37
38     public ClassFab newClass(String JavaDoc name, Class JavaDoc superClass)
39     {
40         try
41         {
42             CtClass ctNewClass = _classSource.newClass(name, superClass);
43
44             return new ClassFabImpl(_classSource, ctNewClass);
45         }
46         catch (Exception JavaDoc ex)
47         {
48             throw new ApplicationRuntimeException(ServiceMessages.unableToCreateClass(
49                     name,
50                     superClass,
51                     ex), ex);
52         }
53     }
54
55     /** @since 1.1 */
56
57     public InterfaceFab newInterface(String JavaDoc name)
58     {
59         try
60         {
61             CtClass ctNewClass = _classSource.newInterface(name);
62
63             return new InterfaceFabImpl(_classSource, ctNewClass);
64         }
65         catch (Exception JavaDoc ex)
66         {
67             throw new ApplicationRuntimeException(
68                     ServiceMessages.unableToCreateInterface(name, ex), ex);
69         }
70
71     }
72
73     public int getCreatedClassCount()
74     {
75         return _classSource.getCreatedClassCount();
76     }
77
78 }
Popular Tags