001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.activemq.transport.mqtt; 018 019import java.util.HashMap; 020import java.util.Map; 021 022import org.apache.activemq.broker.BrokerContext; 023import org.apache.activemq.broker.BrokerService; 024import org.apache.activemq.broker.BrokerServiceAware; 025import org.apache.activemq.transport.MutexTransport; 026import org.apache.activemq.transport.Transport; 027import org.apache.activemq.transport.tcp.TcpTransportFactory; 028import org.apache.activemq.util.IntrospectionSupport; 029import org.apache.activemq.wireformat.WireFormat; 030 031/** 032 * A <a href="http://mqtt.org/">MQTT</a> transport factory 033 */ 034public class MQTTTransportFactory extends TcpTransportFactory implements BrokerServiceAware { 035 036 private BrokerContext brokerContext = null; 037 038 protected String getDefaultWireFormatType() { 039 return "mqtt"; 040 } 041 042 @SuppressWarnings("rawtypes") 043 public Transport compositeConfigure(Transport transport, WireFormat format, Map options) { 044 transport = new MQTTTransportFilter(transport, format, brokerContext); 045 IntrospectionSupport.setProperties(transport, options); 046 return super.compositeConfigure(transport, format, options); 047 } 048 049 public void setBrokerService(BrokerService brokerService) { 050 this.brokerContext = brokerService.getBrokerContext(); 051 } 052 053 @SuppressWarnings("rawtypes") 054 @Override 055 public Transport serverConfigure(Transport transport, WireFormat format, HashMap options) throws Exception { 056 transport = super.serverConfigure(transport, format, options); 057 058 MutexTransport mutex = transport.narrow(MutexTransport.class); 059 if (mutex != null) { 060 mutex.setSyncOnCommand(true); 061 } 062 063 return transport; 064 } 065 066 @Override 067 protected Transport createInactivityMonitor(Transport transport, WireFormat format) { 068 MQTTInactivityMonitor monitor = new MQTTInactivityMonitor(transport, format); 069 070 MQTTTransportFilter filter = transport.narrow(MQTTTransportFilter.class); 071 filter.setInactivityMonitor(monitor); 072 073 return monitor; 074 } 075}