Package org.apache.activemq.transport.mqtt

Class MQTTWireFormat

java.lang.Object

org.apache.activemq.transport.mqtt.MQTTWireFormat

All Implemented Interfaces:

org.apache.activemq.wireformat.WireFormat

public class MQTTWireFormat
extends Object
implements org.apache.activemq.wireformat.WireFormat

Implements marshalling and unmarsalling the MQTT protocol.

Constructor Summary

Constructors

Constructor	Description
MQTTWireFormat()

Method Summary

Modifier and Type	Method	Description
long	getConnectAttemptTimeout()
int	getMaxFrameSize()
int	getVersion()
ByteSequence	marshal(Object command)
void	marshal(Object command, DataOutput dataOut)
void	setConnectAttemptTimeout(long connectTimeout)	Sets the timeout value used to fail a connection if no CONNECT frame is read in the given interval.
void	setMaxFrameSize(int maxFrameSize)	Sets the maximum frame size for an incoming MQTT frame.
void	setVersion(int version)
Object	unmarshal(DataInput dataIn)
Object	unmarshal(ByteSequence packet)

Methods inherited from class java.lang.Object

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

Constructor Details

MQTTWireFormat

public MQTTWireFormat()

Method Details

marshal

public ByteSequence marshal(Object command)
                     throws IOException

Specified by:

marshal in interface org.apache.activemq.wireformat.WireFormat

Throws:

IOException

unmarshal

public Object unmarshal(ByteSequence packet)
                 throws IOException

Specified by:

unmarshal in interface org.apache.activemq.wireformat.WireFormat

Throws:

IOException

marshal

public void marshal(Object command,
 DataOutput dataOut)
             throws IOException

Specified by:

marshal in interface org.apache.activemq.wireformat.WireFormat

Throws:

IOException

unmarshal

public Object unmarshal(DataInput dataIn)
                 throws IOException

Specified by:

unmarshal in interface org.apache.activemq.wireformat.WireFormat

Throws:

IOException

setVersion

public void setVersion(int version)

Specified by:

setVersion in interface org.apache.activemq.wireformat.WireFormat

Parameters:

version - the version of the wire format

getVersion

public int getVersion()

Specified by:

getVersion in interface org.apache.activemq.wireformat.WireFormat

Returns:

the version of the wire format

getMaxFrameSize

public int getMaxFrameSize()

Returns:

the maximum number of bytes a single MQTT message frame is allowed to be.

setMaxFrameSize

public void setMaxFrameSize(int maxFrameSize)

Sets the maximum frame size for an incoming MQTT frame. The protocl limit is 256 megabytes and this value cannot be set higher.

Parameters:

maxFrameSize - the maximum allowed frame size for a single MQTT frame.

getConnectAttemptTimeout

public long getConnectAttemptTimeout()

Returns:

the timeout value used to fail a connection if no CONNECT frame read.

setConnectAttemptTimeout

public void setConnectAttemptTimeout(long connectTimeout)

Sets the timeout value used to fail a connection if no CONNECT frame is read in the given interval.

Parameters:

connectTimeout - the connection frame received timeout value.