Package javaforce

Class MQTT

java.lang.Object

javaforce.MQTT

public class MQTT
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String	wildcard_multi_level
static final char	wildcard_multi_level_char
static final String	wildcard_single_level
static final char	wildcard_single_level_char

Constructor Summary

Constructors

Constructor	Description
MQTT()

Method Summary

Modifier and Type	Method	Description
void	connect()	Send MQTT CONNECT command.
boolean	connect(String host)	Connects to MQTT service port.
boolean	connect(String host, int port)	Connects to MQTT service port.
boolean	connect(String host, int port, KeyMgmt keys)	Connects to MQTT service port over TLS.
void	connect(String user, String pass)	Send MQTT CONNECT command with username/password.
boolean	connect(String host, KeyMgmt keys)	Connects to MQTT service port over TLS.
void	disconnect()	Disconnects from MQTT service port.
long	getLastPacketTimestamp()	Get last packet received time stamp.
boolean	isConnected()
static void	main(String[] args)
void	ping()
void	publish(String topic, String msg)	Send MQTT PUBLISH command.
void	publish(String topic, String msg, byte qos)	Send MQTT PUBLISH command.
void	setListener(MQTTEvents events)
void	setVersion(int ver)	Sets protocol version.
void	subscribe(String topic)	Send MQTT SUBSCRIBE command.
void	unsubscribe(String topic)	Send MQTT UNSUBSCRIBE command.

Methods inherited from class java.lang.Object

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

Field Details

wildcard_single_level

public static final String wildcard_single_level

See Also:

• Constant Field Values

wildcard_multi_level

public static final String wildcard_multi_level

See Also:

• Constant Field Values

wildcard_single_level_char

public static final char wildcard_single_level_char

See Also:

• Constant Field Values

wildcard_multi_level_char

public static final char wildcard_multi_level_char

See Also:

• Constant Field Values

Constructor Details

MQTT

public MQTT()

Method Details

setVersion

public void setVersion(int ver)

Sets protocol version. Must be set before connect() Version 3 = MQTT/3.1 (not supported) Version 4 = MQTT/3.1.1 Version 5 = MQTT/5.0

Parameters:

ver - = 4 or 5 (default = 5)

connect

public boolean connect(String host)

Connects to MQTT service port.

connect

public boolean connect(String host,
 int port)

Connects to MQTT service port.

connect

public boolean connect(String host,
 KeyMgmt keys)

Connects to MQTT service port over TLS.

connect

public boolean connect(String host,
 int port,
 KeyMgmt keys)

Connects to MQTT service port over TLS.

disconnect

public void disconnect()

Disconnects from MQTT service port.

setListener

public void setListener(MQTTEvents events)

getLastPacketTimestamp

public long getLastPacketTimestamp()

Get last packet received time stamp.

connect

public void connect()

Send MQTT CONNECT command.

connect

public void connect(String user,
 String pass)

Send MQTT CONNECT command with username/password.

isConnected

public boolean isConnected()

publish

public void publish(String topic,
 String msg,
 byte qos)

Send MQTT PUBLISH command.

publish

public void publish(String topic,
 String msg)

Send MQTT PUBLISH command. (QOS = 0)

subscribe

public void subscribe(String topic)

Send MQTT SUBSCRIBE command.

unsubscribe

public void unsubscribe(String topic)

Send MQTT UNSUBSCRIBE command.

ping

public void ping()

main

public static void main(String[] args)