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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.logging.log4j.core.util;
19  
20  import java.io.IOException;
21  import java.net.URL;
22  import java.util.Enumeration;
23  
24  import org.osgi.framework.Bundle;
25  
26  /**
27   * Bundle-based ResourceLoader.
28   */
29  public final class BundleResourceLoader implements ResourceLoader {
30  
31      private final Bundle bundle;
32  
33      public BundleResourceLoader(final Bundle bundle) {
34          this.bundle = bundle;
35      }
36  
37      @Override
38      public Class<?> loadClass(final String name) throws ClassNotFoundException {
39          return bundle.loadClass(name);
40      }
41  
42      @Override
43      public URL getResource(final String name) {
44          return bundle.getResource(name);
45      }
46  
47      @Override
48      public Enumeration<URL> getResources(final String name) throws IOException {
49          final Enumeration<URL> enumeration = bundle.getResources(name);
50          return enumeration;
51      }
52  
53      @Override
54      public String toString() {
55          return this.getClass().getCanonicalName() + ": " + bundle.getSymbolicName();
56      }
57  }