org.apache.nifi.cluster.coordination.node

Enum DisconnectionCode

java.lang.Object

java.lang.Enum<DisconnectionCode>

org.apache.nifi.cluster.coordination.node.DisconnectionCode

All Implemented Interfaces:

Serializable, Comparable<DisconnectionCode>

public enum DisconnectionCode
extends Enum<DisconnectionCode>

An enumeration of the reasons that a node may be disconnected from the cluster

Enum Constant Summary

Enum Constants

Enum Constant and Description
BLOCKED_BY_FIREWALL The firewall prevented the node from joining the cluster
FAILED_TO_SERVICE_REQUEST Node did not service a request that was replicated to it
HEARTBEAT_RECEIVED_FROM_DISCONNECTED_NODE Coordinator received a heartbeat from node, but the node is disconnected from the cluster
LACK_OF_HEARTBEAT The node was disconnected because it stopped heartbeating
MISMATCHED_FLOWS The node's flow did not match the cluster's flow
NODE_SHUTDOWN Node is being shut down
NOT_YET_CONNECTED The node has not yet connected to the cluster
STARTUP_FAILURE The node failed to startup properly
UNABLE_TO_COMMUNICATE Cannot communicate with the node
UNKNOWN The node was disconnected for an unreported reason
USER_DISCONNECTED A user explicitly disconnected the node from the cluster

Field Summary

Fields

Modifier and Type	Field and Description
private String	description

Method Summary

Modifier and Type	Method and Description
String	toString()
static DisconnectionCode	valueOf(String name) Returns the enum constant of this type with the specified name.
static DisconnectionCode[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

UNKNOWN

public static final DisconnectionCode UNKNOWN

The node was disconnected for an unreported reason

NOT_YET_CONNECTED

public static final DisconnectionCode NOT_YET_CONNECTED

The node has not yet connected to the cluster

USER_DISCONNECTED

public static final DisconnectionCode USER_DISCONNECTED

A user explicitly disconnected the node from the cluster

LACK_OF_HEARTBEAT

public static final DisconnectionCode LACK_OF_HEARTBEAT

The node was disconnected because it stopped heartbeating

BLOCKED_BY_FIREWALL

public static final DisconnectionCode BLOCKED_BY_FIREWALL

The firewall prevented the node from joining the cluster

STARTUP_FAILURE

public static final DisconnectionCode STARTUP_FAILURE

The node failed to startup properly

MISMATCHED_FLOWS

public static final DisconnectionCode MISMATCHED_FLOWS

The node's flow did not match the cluster's flow

UNABLE_TO_COMMUNICATE

public static final DisconnectionCode UNABLE_TO_COMMUNICATE

Cannot communicate with the node

FAILED_TO_SERVICE_REQUEST

public static final DisconnectionCode FAILED_TO_SERVICE_REQUEST

Node did not service a request that was replicated to it

HEARTBEAT_RECEIVED_FROM_DISCONNECTED_NODE

public static final DisconnectionCode HEARTBEAT_RECEIVED_FROM_DISCONNECTED_NODE

Coordinator received a heartbeat from node, but the node is disconnected from the cluster

NODE_SHUTDOWN

public static final DisconnectionCode NODE_SHUTDOWN

Node is being shut down

Field Detail

description

private final String description

Method Detail

values

public static DisconnectionCode[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (DisconnectionCode c : DisconnectionCode.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DisconnectionCode valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

toString

public String toString()

Overrides:

toString in class Enum<DisconnectionCode>