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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.provider.http4;
18  
19  import java.io.IOException;
20  
21  import org.apache.commons.vfs2.util.MonitorInputStream;
22  import org.apache.http.HttpResponse;
23  import org.apache.http.client.methods.CloseableHttpResponse;
24  
25  /**
26   * An InputStream that cleans up the <code>org.apache.http.client.methods.CloseableHttpResponse</code> on close.
27   */
28  class MonitoredHttpResponseContentInputStream extends MonitorInputStream {
29  
30      private final HttpResponse httpResponse;
31  
32      public MonitoredHttpResponseContentInputStream(final HttpResponse httpResponse) throws IOException {
33          super(httpResponse.getEntity().getContent());
34          this.httpResponse = httpResponse;
35      }
36  
37      @Override
38      protected void onClose() throws IOException {
39          if (httpResponse instanceof CloseableHttpResponse) {
40              ((CloseableHttpResponse) httpResponse).close();
41          }
42      }
43  
44  }