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1   /*
2    * ====================================================================
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *   http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing,
14   * software distributed under the License is distributed on an
15   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16   * KIND, either express or implied.  See the License for the
17   * specific language governing permissions and limitations
18   * under the License.
19   * ====================================================================
20   *
21   * This software consists of voluntary contributions made by many
22   * individuals on behalf of the Apache Software Foundation.  For more
23   * information on the Apache Software Foundation, please see
24   * <http://www.apache.org/>.
25   *
26   */
27  
28  package org.apache.http.nio.protocol;
29  
30  import java.io.IOException;
31  import java.nio.ByteBuffer;
32  
33  import org.apache.http.HttpRequest;
34  import org.apache.http.nio.ContentDecoder;
35  import org.apache.http.nio.IOControl;
36  import org.apache.http.protocol.HttpContext;
37  
38  class NullRequestConsumer implements HttpAsyncRequestConsumer<Object> {
39  
40      private final ByteBuffer buffer;
41      private volatile boolean completed;
42  
43      NullRequestConsumer() {
44          super();
45          this.buffer = ByteBuffer.allocate(2048);
46      }
47  
48      public void requestReceived(final HttpRequest request) {
49      }
50  
51      public void consumeContent(
52              final ContentDecoder decoder, final IOControl ioctrl) throws IOException {
53          int lastRead;
54          do {
55              this.buffer.clear();
56              lastRead = decoder.read(this.buffer);
57          } while (lastRead > 0);
58      }
59  
60      public void requestCompleted(final HttpContext context) {
61          this.completed = true;
62      }
63  
64      public void failed(final Exception ex) {
65          this.completed = true;
66      }
67  
68      public Object getResult() {
69          return Boolean.valueOf(this.completed);
70      }
71  
72      public Exception getException() {
73          return null;
74      }
75  
76      public void close() throws IOException {
77          this.completed = true;
78      }
79  
80      public boolean isDone() {
81          return this.completed;
82      }
83  
84  }