import org.fusesource.mqtt.client.CallbackConnection; //导入依赖的package包/类
@Provides
@Singleton
public CallbackConnection provideMqttConnection(final MQTTProperties mqttProperties) throws Exception {
    MQTT mqtt = new MQTT();
    mqtt.setHost(mqttProperties.getBrokerHost(), mqttProperties.getBrokerPort());
    mqtt.setCleanSession(mqttProperties.isMqttcleanSession());
    mqtt.setClientId(mqttProperties.getMqttClientId());
    mqtt.setKeepAlive((short) mqttProperties.getMqttKeepAlive());
    mqtt.setUserName(mqttProperties.getMqttUsername());
    mqtt.setPassword(mqttProperties.getMqttPassword());

    return mqtt.callbackConnection();
}
 

import org.fusesource.mqtt.client.CallbackConnection; //导入依赖的package包/类
@Inject
public MqttBot(final CallbackConnection mqttConnection, final IRCProperties ircProperties, final MQTTProperties mqttProperties) throws Exception {
    this.mqttProperties = mqttProperties;

    log.info("Using IRC Nickname {}", ircProperties.getNickName());
    setName(ircProperties.getNickName());
    this.mqttConnection = mqttConnection;
}
 

import org.fusesource.mqtt.client.CallbackConnection; //导入依赖的package包/类
public MqttConnection(CallbackConnection connection) {
    this.connection = connection;
}
 

import org.fusesource.mqtt.client.CallbackConnection; //导入依赖的package包/类
public ConnectionCallback(CallbackConnection connection, Object connLock) {
	this.connection = connection;
	this.connLock = connLock;
}
 

import org.fusesource.mqtt.client.CallbackConnection; //导入依赖的package包/类
public CallbackConnection createConnection(String key, MQTT mqtt) {
	CallbackConnection conn = mqtt.callbackConnection();
	connections.put(key, conn);
	return conn;
}
 

import org.fusesource.mqtt.client.CallbackConnection; //导入依赖的package包/类
public CallbackConnection getConnection(String key) {
	return this.connections.get(key);
}