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Java > Open Source Codes > soot > JavaClassProvider


1 /* Soot - a J*va Optimization Framework
2  * Copyright (C) 2004 Ondrej Lhotak
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17  * Boston, MA 02111-1307, USA.
18  */

19
20 package soot;
21 import java.io.*;
22
23 /** A class provider looks for a file of a specific format for a specified
24  * class, and returns a ClassSource for it if it finds it.
25  */

26 public class JavaClassProvider implements ClassProvider
27 {
28     /** Look for the specified class. Return a ClassSource for it if found,
29      * or null if it was not found. */

30     public ClassSource find( String JavaDoc className ) {
31
32         if (soot.javaToJimple.InitialResolver.v().hasASTForSootName(className)){
33             soot.javaToJimple.InitialResolver.v().setASTForSootName(className);
34             return new JavaClassSource(className);
35         }
36         else {
37             String JavaDoc javaClassName = SourceLocator.v().getSourceForClass(className);
38             String JavaDoc fileName = javaClassName.replace('.', '/') + ".java";
39             SourceLocator.FoundFile file =
40                 SourceLocator.v().lookupInClassPath(fileName);
41             if( file == null ) return null;
42             if( file.file == null ) {
43                 throw new RuntimeException JavaDoc( "Class "+className+" was found in a .jar, but Polyglot doesn't support reading source files out of a .jar" );
44             }
45             return new JavaClassSource(className, file.file);
46         }
47     }
48 }
49
50
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