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1   /*
2    * Copyright 2014 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    *   http://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  
17  package io.netty.handler.codec.mqtt;
18  
19  import io.netty.util.internal.StringUtil;
20  
21  /**
22   * Variable Header of the {@link MqttPublishMessage}
23   */
24  public class MqttPublishVariableHeader {
25  
26      private final String topicName;
27      private final int messageId;
28  
29      public MqttPublishVariableHeader(String topicName, int messageId) {
30          this.topicName = topicName;
31          this.messageId = messageId;
32      }
33  
34      public String topicName() {
35          return topicName;
36      }
37  
38      public int messageId() {
39          return messageId;
40      }
41  
42      @Override
43      public String toString() {
44          return new StringBuilder(StringUtil.simpleClassName(this))
45              .append('[')
46              .append("topicName=").append(topicName)
47              .append(", messageId=").append(messageId)
48              .append(']')
49              .toString();
50      }
51  }