Class JGroupsCluster

java.lang.Object

java.util.AbstractMap<String, NodeModel>

org.jgroups.blocks.ReplicatedHashMap<String, NodeModel>

de.xima.fc.cluster.impl.jgroup.JGroupsCluster

All Implemented Interfaces:

ICluster, Closeable, Serializable, AutoCloseable, ConcurrentMap<String, NodeModel>, Map<String, NodeModel>, org.jgroups.blocks.ReplicatedMap<String, NodeModel>, org.jgroups.Receiver

public class JGroupsCluster
extends org.jgroups.blocks.ReplicatedHashMap<String, NodeModel>
implements ICluster

Implementation of a ICluster that uses EClusterImplementation.JGROUPS.

Since:

3.1.0

Author:

XIMA MEDIA GmbH

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.jgroups.blocks.ReplicatedHashMap

org.jgroups.blocks.ReplicatedHashMap.Notification<K,V>

Nested classes/interfaces inherited from class AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface Map

Map.Entry<K,V>

Field Summary

Fields inherited from class org.jgroups.blocks.ReplicatedHashMap

call_options, disp, log, map, methods

Constructor Summary

Constructors

Constructor	Description
JGroupsCluster(org.jgroups.JChannel channel, JGroupsClusterConnection clusterConnection)	Creates a new JGroups cluster implementation.

Method Summary

Modifier and Type	Method	Description
void	changeLocaleNodeState(ENodeState state)	Changes the state of the local node, i.e. the node that corresponds to the server running this code.
void	close()
void	disconnect()	Disconnects the channel of this getLocaleNode().
String	getID()
NodeModel	getLocaleNode()
String[]	getNodeIDs()
List<NodeModel>	getNodeList()
void	sendMessage(IClusterMessage msg)	Attempts to send a message to other nodes in the cluster.
void	start()	Starts the cluster when not started yet.
void	viewAccepted(org.jgroups.View view)

Methods inherited from class org.jgroups.blocks.ReplicatedHashMap

_clear, _put, _putAll, _putIfAbsent, _remove, _remove, _replace, _replace, addNotifier, clear, containsKey, containsValue, entrySet, get, getChannel, getClusterName, getLocalAddress, getState, getTimeout, init, isBlockingUpdates, put, putAll, putIfAbsent, remove, remove, removeNotifier, replace, replace, setBlockingUpdates, setState, setTimeout, start, stop, synchronizedMap

Methods inherited from class AbstractMap

clone, equals, hashCode, isEmpty, keySet, size, toString, values

Methods inherited from class Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface ConcurrentMap

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, replaceAll

Methods inherited from interface Map

equals, hashCode, isEmpty, keySet, size, values

Methods inherited from interface org.jgroups.Receiver

block, receive, receive, unblock

Constructor Details

JGroupsCluster

public JGroupsCluster(org.jgroups.JChannel channel,
 JGroupsClusterConnection clusterConnection)

Creates a new JGroups cluster implementation.

Parameters:

channel - Channel to use for the local node.

clusterConnection - JGroups cluster connection to use.

Method Details

start

public void start()
           throws Exception

Starts the cluster when not started yet.

Throws:

Exception - When the cluster could not be started.

viewAccepted

public void viewAccepted(org.jgroups.View view)

Specified by:

viewAccepted in interface org.jgroups.Receiver

Overrides:

viewAccepted in class org.jgroups.blocks.ReplicatedHashMap<String, NodeModel>

getID

public String getID()

Specified by:

getID in interface ICluster

Returns:

The ID of the entire cluster.

getNodeList

public List<NodeModel> getNodeList()

Specified by:

getNodeList in interface ICluster

Returns:

All nodes that are part of the cluster, whether they are currently connected.

getNodeIDs

public String[] getNodeIDs()

Specified by:

getNodeIDs in interface ICluster

Returns:

A list of the IDs of all nodes that are part of the cluster, whether they are currently connected.

getLocaleNode

public NodeModel getLocaleNode()

Specified by:

getLocaleNode in interface ICluster

Returns:

The local node, i.e. the node that corresponds to the server running this code.

disconnect

public void disconnect()

Disconnects the channel of this getLocaleNode().

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class org.jgroups.blocks.ReplicatedHashMap<String, NodeModel>

sendMessage

public void sendMessage(IClusterMessage msg)
                 throws Exception

Description copied from interface: ICluster

Attempts to send a message to other nodes in the cluster.

Specified by:

sendMessage in interface ICluster

Parameters:

msg - Message to send to other nodes.

Throws:

Exception - When the message could not be sent, such as due to network failures.

changeLocaleNodeState

public void changeLocaleNodeState(ENodeState state)

Description copied from interface: ICluster

Changes the state of the local node, i.e. the node that corresponds to the server running this code.

Specified by:

changeLocaleNodeState in interface ICluster

Parameters:

state - The new state for the node.