Class MQTTForward

java.lang.Object

javaforce.MQTTForward

public class MQTTForward
extends Object

MQTT Forward. Provides a queue of messages to be sent to an MQTT service. MQTTForward will work in the background to send messages.

Author:

peter.quiring

Constructor Summary

Constructors

Constructor	Description
MQTTForward()

Method Summary

Modifier and Type	Method	Description
int	getConnects()	Returns # of times a connection was created.
boolean	isConnected()	Returns connection status.
void	publish(String topic, String msg)
void	reconnect()	Force a reconnection to MQTT Server.
void	setKeepAlive(int value)	Set keep alive interval in seconds (default = 5) (0 = disabled) Send a ping() to maintain connection.
void	setMaxQueueSize(int size)	Set maximum queue size (default = 1000) Messages are lost when queue reaches this size.
void	setQOS(byte qos)	Set QOS (Quality of service) QOS effects publish acknowledgements.
void	start(String host, int port)	Start sending messages to MQTT Server on host:port without encryption.
void	start(String host, int port, String user, String pass)	Start sending messages to MQTT Server on host:port without encryption with supplied login details.
void	start(String host, int port, KeyMgmt keys)	Start sending messages to MQTT Server on host:port with encryption.
void	start(String host, int port, KeyMgmt keys, String user, String pass)	Start sending messages to MQTT Server on host:port with encryption.
void	start(String host, String user, String pass)	Start sending messages to MQTT Server on host without encryption with supplied login details.
void	start(String host, KeyMgmt keys, String user, String pass)	Start sending messages to MQTT Server on host with encryption with supplied login details.
void	stop()	Stop forwarding messages and shutdown any connection.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MQTTForward

public MQTTForward()

Method Details

start

public void start(String host,
 int port)

Start sending messages to MQTT Server on host:port without encryption.

start

public void start(String host,
 int port,
 KeyMgmt keys)

Start sending messages to MQTT Server on host:port with encryption.

start

public void start(String host,
 String user,
 String pass)

Start sending messages to MQTT Server on host without encryption with supplied login details.

start

public void start(String host,
 KeyMgmt keys,
 String user,
 String pass)

Start sending messages to MQTT Server on host with encryption with supplied login details.

start

public void start(String host,
 int port,
 String user,
 String pass)

Start sending messages to MQTT Server on host:port without encryption with supplied login details.

start

public void start(String host,
 int port,
 KeyMgmt keys,
 String user,
 String pass)

Start sending messages to MQTT Server on host:port with encryption.

stop

public void stop()

Stop forwarding messages and shutdown any connection.

isConnected

public boolean isConnected()

Returns connection status.

getConnects

public int getConnects()

Returns # of times a connection was created.

setMaxQueueSize

public void setMaxQueueSize(int size)

Set maximum queue size (default = 1000) Messages are lost when queue reaches this size.

setQOS

public void setQOS(byte qos)

Set QOS (Quality of service) QOS effects publish acknowledgements. QOS values are defined in javaforce.service.MQTTServer QOS_0 = NO ACK QOS_1 = ACK QOS_2 = REC, REL, CMP QOS_3 = reserved

Parameters:

qos - = quality of service (default = QOS_1)

publish

public void publish(String topic,
 String msg)

setKeepAlive

public void setKeepAlive(int value)

Set keep alive interval in seconds (default = 5) (0 = disabled) Send a ping() to maintain connection.

reconnect

public void reconnect()

Force a reconnection to MQTT Server.