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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.vfs.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   * @author <a href="mailto:brian@mmmanager.org">Brian Olsen</a>
    29   * @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $
    30   */
    31  class URLStreamHandlerProxy
    32      extends URLStreamHandler
    33  {
    34      protected URLConnection openConnection(final URL url)
    35          throws IOException
    36      {
    37          final URL proxyURL = new URL(url.toExternalForm());
    38          return proxyURL.openConnection();
    39      }
    40
    41      protected void parseURL(final URL u,
    42                              final String spec,
    43                              final int start,
    44                              final int limit)
    45      {
    46          try
    47          {
    48              final URL url = new URL(u, spec);
    49              setURL(u, url.getProtocol(), url.getHost(),
    50                  url.getPort(), url.getAuthority(), url.getUserInfo(),
    51                  url.getFile(), url.getQuery(), url.getRef());
    52          }
    53          catch (MalformedURLException mue)
    54          {
    55              //We retrow this as a simple runtime exception.
    56              //It is retrown in URL as a MalformedURLException anyway.
    57              throw new RuntimeException(mue.getMessage());
    58          }
    59      }
    60  }