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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  /**
25   * ClassLoader-based ResourceLoader.
26   */
27  public final class ClassLoaderResourceLoader implements ResourceLoader {
28  
29      private final ClassLoader loader;
30  
31      public ClassLoaderResourceLoader(final ClassLoader loader) {
32          this.loader = loader != null ? loader : this.getClass().getClassLoader();
33      }
34  
35      @Override
36      public Class<?> loadClass(final String name) throws ClassNotFoundException {
37          return loader.loadClass(name);
38      }
39  
40      @Override
41      public URL getResource(final String name) {
42          return loader.getResource(name);
43      }
44  
45      @Override
46      public Enumeration<URL> getResources(final String name) throws IOException {
47          return loader.getResources(name);
48      }
49  
50      @Override
51      public String toString() {
52          return this.getClass().getCanonicalName() + '(' + loader.toString() + ')';
53      }
54  }