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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  package org.apache.commons.vfs2.impl;
18  
19  import java.io.IOException;
20  import java.net.MalformedURLException;
21  import java.net.URL;
22  import java.net.URLConnection;
23  import java.net.URLStreamHandler;
24  
25  /**
26   * A proxy for URLs that are supported by the standard stream handler factory.
27   */
28  final class URLStreamHandlerProxy extends URLStreamHandler {
29  
30      @Override
31      protected URLConnection openConnection(final URL url) throws IOException {
32          return new URL(url.toExternalForm()).openConnection();
33      }
34  
35      @Override
36      protected void parseURL(final URL u, final String spec, final int start, final int limit) {
37          try {
38              final URL url = new URL(u, spec);
39              setURL(u, url.getProtocol(), url.getHost(), url.getPort(), url.getAuthority(), url.getUserInfo(),
40                      url.getFile(), url.getQuery(), url.getRef());
41          } catch (final MalformedURLException mue) {
42              // We retrow this as a simple runtime exception.
43              // It is retrown in URL as a MalformedURLException anyway.
44              throw new RuntimeException(mue.getMessage());
45          }
46      }
47  }