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 /**
38 * Basic {@link org.apache.hc.core5.http.nio.AsyncEntityConsumer} implementation
39 * that processes the data stream content into a byte array.
40 *
41 * @since 5.0
42 */
43 public class BasicAsyncEntityConsumer extends AbstractBinAsyncEntityConsumer<byte[]> {
44
45 private final ByteArrayBuffer buffer;
46
47 public BasicAsyncEntityConsumer() {
48 super();
49 this.buffer = new ByteArrayBuffer(1024);
50 }
51
52 @Override
53 protected void streamStart(final ContentType contentType) throws HttpException, IOException {
54 }
55
56 @Override
57 protected int capacityIncrement() {
58 return Integer.MAX_VALUE;
59 }
60
61 @Override
62 protected void data(final ByteBuffer src, final boolean endOfStream) throws IOException {
63 if (src == null) {
64 return;
65 }
66 if (src.hasArray()) {
67 buffer.append(src.array(), src.arrayOffset() + src.position(), src.remaining());
68 } else {
69 while (src.hasRemaining()) {
70 buffer.append(src.get());
71 }
72 }
73 }
74
75 @Override
76 protected byte[] generateContent() throws IOException {
77 return buffer.toByteArray();
78 }
79
80 @Override
81 public void releaseResources() {
82 buffer.clear();
83 }
84
85 }