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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   *  Unless required by applicable law or agreed to in writing, software
12   *  distributed under the License is distributed on an "AS IS" BASIS,
13   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   *  See the License for the specific language governing permissions and
15   *  limitations under the License.
16   *
17   */
18  package org.apache.bcel.util;
19  
20  import java.util.HashMap;
21  import java.util.Map;
22  
23  import org.apache.bcel.classfile.JavaClass;
24  
25  /**
26   * This repository is used in situations where a Class is created outside the realm of a ClassLoader. Classes are loaded from the file systems using the paths
27   * specified in the given class path. By default, this is the value returned by ClassPath.getClassPath().
28   *
29   * @see org.apache.bcel.Repository
30   */
31  public class ClassPathRepository extends AbstractClassPathRepository {
32  
33      private final Map<String, JavaClass> _loadedClasses = new HashMap<>(); // CLASSNAME X JAVACLASS
34  
35      public ClassPathRepository(final ClassPath classPath) {
36          super(classPath);
37      }
38  
39      /**
40       * Stores a new JavaClass instance into this Repository.
41       */
42      @Override
43      public void storeClass(final JavaClass javaClass) {
44          _loadedClasses.put(javaClass.getClassName(), javaClass);
45          javaClass.setRepository(this);
46      }
47  
48      /**
49       * Removes class from repository.
50       */
51      @Override
52      public void removeClass(final JavaClass javaClass) {
53          _loadedClasses.remove(javaClass.getClassName());
54      }
55  
56      /**
57       * Finds an already defined (cached) JavaClass object by name.
58       */
59      @Override
60      public JavaClass findClass(final String className) {
61          return _loadedClasses.get(className);
62      }
63  
64      /**
65       * Clears all entries from cache.
66       */
67      @Override
68      public void clear() {
69          _loadedClasses.clear();
70      }
71  }