|
|||||||||||||||||||
30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
HiveMindClassPool.java | 100% | 100% | 100% | 100% |
|
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 java.util.HashSet;
|
|
18 |
import java.util.Set;
|
|
19 |
|
|
20 |
import javassist.CannotCompileException;
|
|
21 |
import javassist.ClassPath;
|
|
22 |
import javassist.ClassPool;
|
|
23 |
import javassist.CtClass;
|
|
24 |
import javassist.LoaderClassPath;
|
|
25 |
|
|
26 |
/**
|
|
27 |
* Used to ensure that {@link javassist.ClassPool#appendClassPath(javassist.ClassPath)}is invoked
|
|
28 |
* with a synchronized lock. Additionally, wraps around a shared
|
|
29 |
* {@link org.apache.hivemind.service.impl.ClassFactoryClassLoader}.
|
|
30 |
*
|
|
31 |
* @author Howard Lewis Ship
|
|
32 |
*/
|
|
33 |
public class HiveMindClassPool extends ClassPool |
|
34 |
{ |
|
35 |
private ClassFactoryClassLoader _loader = new ClassFactoryClassLoader(); |
|
36 |
|
|
37 |
/**
|
|
38 |
* Used to identify which class loaders have already been integrated into the pool.
|
|
39 |
*/
|
|
40 |
private Set _loaders = new HashSet(); |
|
41 |
|
|
42 | 138 |
public HiveMindClassPool()
|
43 |
{ |
|
44 | 138 |
super(null); |
45 |
|
|
46 | 138 |
appendClassLoader(Thread.currentThread().getContextClassLoader()); |
47 |
} |
|
48 |
|
|
49 |
/**
|
|
50 |
* Convienience method for adding to the ClassPath for a particular class loader.
|
|
51 |
*/
|
|
52 | 21723 |
public synchronized void appendClassLoader(ClassLoader loader) |
53 |
{ |
|
54 | 21723 |
if (loader == null || loader == _loader || _loaders.contains(loader)) |
55 | 21585 |
return;
|
56 |
|
|
57 | 138 |
_loader.addDelegateLoader(loader); |
58 |
|
|
59 | 138 |
ClassPath path = new LoaderClassPath(loader);
|
60 |
|
|
61 | 138 |
appendClassPath(path); |
62 |
|
|
63 | 138 |
_loaders.add(loader); |
64 |
} |
|
65 |
|
|
66 |
/**
|
|
67 |
* Invoked to convert an fabricated class into a real class. The new classes' class loader will
|
|
68 |
* be the delegating ClassFactoryClassLoader, which has visibility to all class loaders for all
|
|
69 |
* modules.
|
|
70 |
*
|
|
71 |
* @since 1.1
|
|
72 |
*/
|
|
73 | 1961 |
public Class toClass(CtClass ctClass) throws CannotCompileException |
74 |
{ |
|
75 | 1961 |
return ctClass.toClass(_loader);
|
76 |
} |
|
77 |
} |
|