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1   package org.apache.maven.shared.io.location;
2   
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  import java.io.File;
23  import java.io.IOException;
24  import java.net.URL;
25  
26  import org.apache.maven.shared.utils.io.FileUtils;
27  
28  /**
29   * The URL Location.
30   *
31   */
32  public class URLLocation
33      extends FileLocation
34  {
35  
36      private final URL url;
37  
38      private final String tempFilePrefix;
39  
40      private final String tempFileSuffix;
41  
42      private final boolean tempFileDeleteOnExit;
43  
44      /**
45       * @param url The URL.
46       * @param specification The spec.
47       * @param tempFilePrefix the prefix.
48       * @param tempFileSuffix The suffix.
49       * @param tempFileDeleteOnExit delete on exit.
50       */
51      public URLLocation( URL url, String specification, String tempFilePrefix, String tempFileSuffix,
52                          boolean tempFileDeleteOnExit )
53      {
54          super( specification );
55  
56          this.url = url;
57          this.tempFilePrefix = tempFilePrefix;
58          this.tempFileSuffix = tempFileSuffix;
59          this.tempFileDeleteOnExit = tempFileDeleteOnExit;
60      }
61  
62      /** {@inheritDoc} */
63      protected void initFile()
64          throws IOException
65      {
66          // TODO: Log this in the debug log-level...
67          if ( unsafeGetFile() == null )
68          {
69              File tempFile = File.createTempFile( tempFilePrefix, tempFileSuffix );
70  
71              if ( tempFileDeleteOnExit )
72              {
73                  tempFile.deleteOnExit();
74              }
75  
76              FileUtils.copyURLToFile( url, tempFile );
77  
78              setFile( tempFile );
79          }
80      }
81  
82  }