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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.hc.core5.http.nio.entity;
29  
30  import java.io.IOException;
31  import java.nio.ByteBuffer;
32  
33  import org.apache.hc.core5.http.ContentType;
34  import org.apache.hc.core5.http.HttpException;
35  import org.apache.hc.core5.util.ByteArrayBuffer;
36  
37  public class BasicAsyncEntityConsumer extends AbstractBinAsyncEntityConsumer<byte[]> {
38  
39  
40      private final ByteArrayBuffer buffer;
41  
42      public BasicAsyncEntityConsumer() {
43          super();
44          this.buffer = new ByteArrayBuffer(1024);
45      }
46  
47      @Override
48      protected void streamStart(final ContentType contentType) throws HttpException, IOException {
49      }
50  
51      @Override
52      protected int capacity() {
53          return Integer.MAX_VALUE;
54      }
55  
56      @Override
57      protected void data(final ByteBuffer src, final boolean endOfStream) throws IOException {
58          if (src == null) {
59              return;
60          }
61          if (src.hasArray()) {
62              buffer.append(src.array(), src.arrayOffset() + src.position(), src.remaining());
63          } else {
64              while (src.hasRemaining()) {
65                  buffer.append(src.get());
66              }
67          }
68      }
69  
70      @Override
71      protected byte[] generateContent() throws IOException {
72          return buffer.toByteArray();
73      }
74  
75      @Override
76      public void releaseResources() {
77      }
78  
79  }