View Javadoc
1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.index.updater;
20  
21  import java.io.File;
22  import java.io.FileNotFoundException;
23  import java.io.IOException;
24  import java.io.InputStream;
25  import java.util.ArrayList;
26  import java.util.List;
27  
28  /**
29   * ResourceFetcher that keeps track of all requested remote resources.
30   *
31   * @author igor
32   */
33  public class TrackingFetcher extends DefaultIndexUpdater.FileFetcher {
34  
35      private final ArrayList<String> resources = new ArrayList<>();
36  
37      public TrackingFetcher(File basedir) {
38          super(basedir);
39      }
40  
41      @Override
42      public InputStream retrieve(String name) throws IOException, FileNotFoundException {
43          resources.add(name);
44          return super.retrieve(name);
45      }
46  
47      @Override
48      public void retrieve(String name, File targetFile) throws IOException, FileNotFoundException {
49          resources.add(name);
50          super.retrieve(name, targetFile);
51      }
52  
53      public List<String> getRetrievedResources() {
54          return resources;
55      }
56  }