org.apache.nifi.io.socket.multicast

Class MulticastListener

java.lang.Object

org.apache.nifi.io.socket.multicast.MulticastListener

public abstract class MulticastListener
extends Object

Implements a listener for protocol messages sent over multicast. If a message is of type MulticastProtocolMessage, then the underlying protocol message is passed to the handler. If the receiving handler produces a message response, then the message is wrapped with a MulticastProtocolMessage before being sent to the originator.

Field Summary

Fields

Modifier and Type	Field and Description
private MulticastConfiguration	configuration
private static int	DEFAULT_MAX_PACKET_SIZE_BYTES
private static int	DEFAULT_SHUTDOWN_LISTENER_SECONDS
private ExecutorService	executorService
private static org.slf4j.Logger	logger
private int	maxPacketSizeBytes
private InetSocketAddress	multicastAddress
private MulticastSocket	multicastSocket
private int	numThreads
private int	shutdownListenerSeconds

Constructor Summary

Constructors

Constructor and Description
MulticastListener(int numThreads, InetSocketAddress multicastAddress, MulticastConfiguration configuration)

Method Summary

Modifier and Type	Method and Description
abstract void	dispatchRequest(MulticastSocket multicastSocket, DatagramPacket packet) Implements the action to perform when a new datagram is received.
MulticastConfiguration	getConfiguration()
int	getMaxPacketSizeBytes()
InetSocketAddress	getMulticastAddress()
int	getNumThreads()
int	getShutdownListenerSeconds()
boolean	isRunning()
void	setMaxPacketSizeBytes(int maxPacketSizeBytes)
void	setShutdownListenerSeconds(int shutdownListenerSeconds)
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SHUTDOWN_LISTENER_SECONDS

private static final int DEFAULT_SHUTDOWN_LISTENER_SECONDS

See Also:

Constant Field Values

DEFAULT_MAX_PACKET_SIZE_BYTES

private static final int DEFAULT_MAX_PACKET_SIZE_BYTES

See Also:

Constant Field Values

logger

private static final org.slf4j.Logger logger

numThreads

private final int numThreads

multicastAddress

private final InetSocketAddress multicastAddress

configuration

private final MulticastConfiguration configuration

executorService

private volatile ExecutorService executorService

multicastSocket

private volatile MulticastSocket multicastSocket

shutdownListenerSeconds

private int shutdownListenerSeconds

maxPacketSizeBytes

private int maxPacketSizeBytes

Constructor Detail

MulticastListener

public MulticastListener(int numThreads,
                         InetSocketAddress multicastAddress,
                         MulticastConfiguration configuration)

Method Detail

dispatchRequest

public abstract void dispatchRequest(MulticastSocket multicastSocket,
                                     DatagramPacket packet)

Implements the action to perform when a new datagram is received. This class must not close the multicast socket.

Parameters:

multicastSocket - socket

packet - the datagram packet

start

public void start()
           throws IOException

Throws:

IOException

isRunning

public boolean isRunning()

stop

public void stop()
          throws IOException

Throws:

IOException

getShutdownListenerSeconds

public int getShutdownListenerSeconds()

setShutdownListenerSeconds

public void setShutdownListenerSeconds(int shutdownListenerSeconds)

getMaxPacketSizeBytes

public int getMaxPacketSizeBytes()

setMaxPacketSizeBytes

public void setMaxPacketSizeBytes(int maxPacketSizeBytes)

getConfiguration

public MulticastConfiguration getConfiguration()

getMulticastAddress

public InetSocketAddress getMulticastAddress()

getNumThreads

public int getNumThreads()