org.apache.nifi.cluster.protocol

Interface NodeProtocolSender

All Known Implementing Classes:

NodeProtocolSenderImpl, NodeProtocolSenderListener

public interface NodeProtocolSender

An interface for sending protocol messages from a node to the cluster manager.

Author:

unattributed

Method Summary

Methods

Modifier and Type	Method and Description
void	heartbeat(HeartbeatMessage msg) Sends a "heartbeat" message to the cluster manager.
void	notifyControllerStartupFailure(ControllerStartupFailureMessage msg) Sends a failure notification if the controller was unable start.
void	notifyReconnectionFailure(ReconnectionFailureMessage msg) Sends a failure notification if the node was unable to reconnect to the cluster
ConnectionResponseMessage	requestConnection(ConnectionRequestMessage msg) Sends a "connection request" message to the cluster manager.
void	sendBulletins(NodeBulletinsMessage msg) Sends a bulletins message to the cluster manager.

Method Detail

requestConnection

ConnectionResponseMessage requestConnection(ConnectionRequestMessage msg)
                                            throws ProtocolException,
                                                   UnknownServiceAddressException

Sends a "connection request" message to the cluster manager.

Parameters:

msg - a message

Returns:

the response

Throws:

UnknownServiceAddressException - if the cluster manager's address is not known

ProtocolException - if communication failed

heartbeat

void heartbeat(HeartbeatMessage msg)
               throws ProtocolException,
                      UnknownServiceAddressException

Sends a "heartbeat" message to the cluster manager.

Parameters:

msg - a message

Throws:

UnknownServiceAddressException - if the cluster manager's address is not known

ProtocolException - if communication failed

sendBulletins

void sendBulletins(NodeBulletinsMessage msg)
                   throws ProtocolException,
                          UnknownServiceAddressException

Sends a bulletins message to the cluster manager.

Parameters:

msg -

Throws:

ProtocolException

UnknownServiceAddressException

notifyControllerStartupFailure

void notifyControllerStartupFailure(ControllerStartupFailureMessage msg)
                                    throws ProtocolException,
                                           UnknownServiceAddressException

Sends a failure notification if the controller was unable start.

Parameters:

msg - a message

Throws:

UnknownServiceAddressException - if the cluster manager's address is not known

ProtocolException - if communication failed

notifyReconnectionFailure

void notifyReconnectionFailure(ReconnectionFailureMessage msg)
                               throws ProtocolException,
                                      UnknownServiceAddressException

Sends a failure notification if the node was unable to reconnect to the cluster

Parameters:

msg - a message

Throws:

UnknownServiceAddressException - if the cluster manager's address is not known

ProtocolException - if communication failed