1 /*
2 * Copyright 2013 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.handler.codec.memcache.binary;
17
18 import io.netty.buffer.ByteBuf;
19 import io.netty.util.internal.UnstableApi;
20
21 /**
22 * The default implementation of the {@link BinaryMemcacheResponse}.
23 */
24 @UnstableApi
25 public class DefaultBinaryMemcacheResponse extends AbstractBinaryMemcacheMessage implements BinaryMemcacheResponse {
26
27 /**
28 * Default magic byte for a request.
29 */
30 public static final byte RESPONSE_MAGIC_BYTE = (byte) 0x81;
31
32 private short status;
33
34 /**
35 * Create a new {@link DefaultBinaryMemcacheResponse} with the header only.
36 */
37 public DefaultBinaryMemcacheResponse() {
38 this(null, null);
39 }
40
41 /**
42 * Create a new {@link DefaultBinaryMemcacheResponse} with the header and key.
43 *
44 * @param key the key to use.
45 */
46 public DefaultBinaryMemcacheResponse(ByteBuf key) {
47 this(key, null);
48 }
49
50 /**
51 * Create a new {@link DefaultBinaryMemcacheResponse} with the header, key and extras.
52 *
53 * @param key the key to use.
54 * @param extras the extras to use.
55 */
56 public DefaultBinaryMemcacheResponse(ByteBuf key, ByteBuf extras) {
57 super(key, extras);
58 setMagic(RESPONSE_MAGIC_BYTE);
59 }
60
61 @Override
62 public short status() {
63 return status;
64 }
65
66 @Override
67 public BinaryMemcacheResponse setStatus(short status) {
68 this.status = status;
69 return this;
70 }
71
72 @Override
73 public BinaryMemcacheResponse retain() {
74 super.retain();
75 return this;
76 }
77
78 @Override
79 public BinaryMemcacheResponse retain(int increment) {
80 super.retain(increment);
81 return this;
82 }
83
84 @Override
85 public BinaryMemcacheResponse touch() {
86 super.touch();
87 return this;
88 }
89
90 @Override
91 public BinaryMemcacheResponse touch(Object hint) {
92 super.touch(hint);
93 return this;
94 }
95
96 /**
97 * Copies special metadata hold by this instance to the provided instance
98 *
99 * @param dst The instance where to copy the metadata of this instance to
100 */
101 void copyMeta(DefaultBinaryMemcacheResponse dst) {
102 super.copyMeta(dst);
103 dst.status = status;
104 }
105 }
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