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Java example source code file (MqttMessageFactory.java)
The MqttMessageFactory.java Java example source code/* * Copyright 2014 The Netty Project * * The Netty Project licenses this file to you under the Apache License, * version 2.0 (the "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. */ package io.netty.handler.codec.mqtt; import io.netty.buffer.ByteBuf; import io.netty.handler.codec.DecoderResult; /** * Utility class with factory methods to create different types of MQTT messages. */ public final class MqttMessageFactory { public static MqttMessage newMessage(MqttFixedHeader mqttFixedHeader, Object variableHeader, Object payload) { switch (mqttFixedHeader.messageType()) { case CONNECT : return new MqttConnectMessage( mqttFixedHeader, (MqttConnectVariableHeader) variableHeader, (MqttConnectPayload) payload); case CONNACK: return new MqttConnAckMessage(mqttFixedHeader, (MqttConnAckVariableHeader) variableHeader); case SUBSCRIBE: return new MqttSubscribeMessage( mqttFixedHeader, (MqttMessageIdVariableHeader) variableHeader, (MqttSubscribePayload) payload); case SUBACK: return new MqttSubAckMessage( mqttFixedHeader, (MqttMessageIdVariableHeader) variableHeader, (MqttSubAckPayload) payload); case UNSUBACK: return new MqttUnsubAckMessage( mqttFixedHeader, (MqttMessageIdVariableHeader) variableHeader); case UNSUBSCRIBE: return new MqttUnsubscribeMessage( mqttFixedHeader, (MqttMessageIdVariableHeader) variableHeader, (MqttUnsubscribePayload) payload); case PUBLISH: return new MqttPublishMessage( mqttFixedHeader, (MqttPublishVariableHeader) variableHeader, (ByteBuf) payload); case PUBACK: return new MqttPubAckMessage(mqttFixedHeader, (MqttMessageIdVariableHeader) variableHeader); case PUBREC: case PUBREL: case PUBCOMP: return new MqttMessage(mqttFixedHeader, variableHeader); case PINGREQ: case PINGRESP: case DISCONNECT: return new MqttMessage(mqttFixedHeader); default: throw new IllegalArgumentException("unknown message type: " + mqttFixedHeader.messageType()); } } public static MqttMessage newInvalidMessage(Throwable cause) { return new MqttMessage(null, null, null, DecoderResult.failure(cause)); } private MqttMessageFactory() { } } Other Java examples (source code examples)Here is a short list of links related to this Java MqttMessageFactory.java source code file: |
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