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Java > Open Source Codes > edu > umd > cs > findbugs > classfile > engine > bcel > ClassContextClassAnalysisEngine


1 /*
2  * FindBugs - Find Bugs in Java programs
3  * Copyright (C) 2006, University of Maryland
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18  */

19
20 package edu.umd.cs.findbugs.classfile.engine.bcel;
21
22 import org.apache.bcel.Repository;
23 import org.apache.bcel.classfile.JavaClass;
24
25 import edu.umd.cs.findbugs.ba.AnalysisContext;
26 import edu.umd.cs.findbugs.ba.ClassContext;
27 import edu.umd.cs.findbugs.classfile.CheckedAnalysisException;
28 import edu.umd.cs.findbugs.classfile.ClassDescriptor;
29 import edu.umd.cs.findbugs.classfile.IAnalysisCache;
30 import edu.umd.cs.findbugs.classfile.IClassAnalysisEngine;
31 import edu.umd.cs.findbugs.classfile.ResourceNotFoundException;
32
33 /**
34  * Adapter to produce the ClassContext for a given class.
35  * This is backwards-compatibility for the BCEL-based
36  * analysis framework.
37  *
38  * @author David Hovemeyer
39  */

40 public class ClassContextClassAnalysisEngine implements IClassAnalysisEngine {
41
42     /* (non-Javadoc)
43      * @see edu.umd.cs.findbugs.classfile.IAnalysisEngine#analyze(edu.umd.cs.findbugs.classfile.IAnalysisCache, java.lang.Object)
44      */

45     public Object JavaDoc analyze(IAnalysisCache analysisCache,
46             ClassDescriptor descriptor) throws CheckedAnalysisException {
47         
48         JavaClass javaClass = analysisCache.getClassAnalysis(JavaClass.class, descriptor);
49         ClassContext classContext = new ClassContext(javaClass, AnalysisContext.currentAnalysisContext());
50         return classContext;
51     }
52
53     /* (non-Javadoc)
54      * @see edu.umd.cs.findbugs.classfile.IAnalysisEngine#registerWith(edu.umd.cs.findbugs.classfile.IAnalysisCache)
55      */

56     public void registerWith(IAnalysisCache analysisCache) {
57         analysisCache.registerClassAnalysisEngine(ClassContext.class, this);
58     }
59     
60     /* (non-Javadoc)
61      * @see edu.umd.cs.findbugs.classfile.IAnalysisEngine#retainAnalysisResults()
62      */

63     public boolean retainAnalysisResults() {
64         // ClassContexts can be recomputed
65
return false;
66     }
67
68 }
69
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