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1   /*
2    * $Id$
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  package org.apache.struts2.osgi;
23  
24  import com.opensymphony.xwork2.util.finder.ClassLoaderInterface;
25  
26  import java.net.URL;
27  import java.util.Enumeration;
28  import java.util.Collections;
29  import java.io.IOException;
30  import java.io.InputStream;
31  
32  import org.osgi.framework.Bundle;
33  
34  /***
35   * ClassLoaderInterface instance that delegates to the singleton of DefaultBundleAccessor 
36   */
37  public class BundleClassLoaderInterface implements ClassLoaderInterface {
38      public Class<?> loadClass(String name) throws ClassNotFoundException {
39          return DefaultBundleAccessor.getInstance().loadClass(name);
40      }
41  
42      public URL getResource(String name) {
43          return  DefaultBundleAccessor.getInstance().loadResource(name, true);
44      }
45  
46      public Enumeration<URL> getResources(String name) throws IOException {
47          return Collections.enumeration(DefaultBundleAccessor.getInstance().loadResources(name, true));
48      }
49  
50      public InputStream getResourceAsStream(String name) throws IOException {
51          return DefaultBundleAccessor.getInstance().loadResourceAsStream(name);
52      }
53  
54      public ClassLoaderInterface getParent() {
55          return null;
56      }
57  }