org.eclipse.paho.client.mqttv3.internal.wire.MqttPubAck Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2009, 2015 IBM Corp.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v1.0 which accompany this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Dave Locke - initial API and implementation and/or initial documentation
* Ian Craggs - ack control (bug 472172)
*/
package org.eclipse.paho.client.mqttv3.internal.wire;
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;
import org.eclipse.paho.client.mqttv3.MqttException;
/**
* An on-the-wire representation of an MQTT PUBACK message.
*/
public class MqttPubAck extends MqttAck {
public MqttPubAck(byte info, byte[] data) throws IOException {
super(MqttWireMessage.MESSAGE_TYPE_PUBACK);
ByteArrayInputStream bais = new ByteArrayInputStream(data);
DataInputStream dis = new DataInputStream(bais);
msgId = dis.readUnsignedShort();
dis.close();
}
public MqttPubAck(MqttPublish publish) {
super(MqttWireMessage.MESSAGE_TYPE_PUBACK);
msgId = publish.getMessageId();
}
public MqttPubAck(int messageId) {
super(MqttWireMessage.MESSAGE_TYPE_PUBACK);
msgId = messageId;
}
protected byte[] getVariableHeader() throws MqttException {
return encodeMessageId();
}
}