org.apache.ignite.internal.processors.marshaller

Class GridMarshallerMappingProcessor

java.lang.Object

org.apache.ignite.internal.processors.GridProcessorAdapter

org.apache.ignite.internal.processors.marshaller.GridMarshallerMappingProcessor

All Implemented Interfaces:

GridComponent, GridProcessor

public class GridMarshallerMappingProcessor
extends GridProcessorAdapter

Processor responsible for managing custom DiscoveryCustomMessage events for exchanging marshalling mappings between nodes in grid. In particular it processes two flows:

• Some node, server or client, wants to add new mapping for some class. In that case a pair of MappingProposedMessage and MappingAcceptedMessage events is used.
• As discovery events are delivered to clients asynchronously, client node may not have some mapping when server nodes in the grid are already allowed to use the mapping. In that situation client sends a MissingMappingRequestMessage request and processor handles it as well as MissingMappingResponseMessage message.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.ignite.internal.GridComponent

GridComponent.DiscoveryDataExchangeType

Field Summary

Fields inherited from class org.apache.ignite.internal.processors.GridProcessorAdapter

ctx, diagnosticLog, log

Constructor Summary

Constructors

Constructor and Description
GridMarshallerMappingProcessor(GridKernalContext ctx)

Method Summary

Modifier and Type	Method and Description
void	addMappingUpdatedListener(MappingUpdatedListener lsnr) Adds a listener to be notified when mapping changes.
void	collectGridNodeData(DiscoveryDataBag dataBag) Collects discovery data on nodes already in grid on receiving TcpDiscoveryNodeAddedMessage.
void	collectJoiningNodeData(DiscoveryDataBag dataBag) Collects discovery data on joining node before sending TcpDiscoveryJoinRequestMessage request.
Iterator<Map.Entry<Byte,Map<Integer,String>>>	currentMappings() Gets an iterator over all current mappings.
GridComponent.DiscoveryDataExchangeType	discoveryDataType() Gets unique component type to distinguish components providing discovery data.
void	onDisconnected(IgniteFuture<?> reconnectFut) Client disconnected callback.
void	onGridDataReceived(DiscoveryDataBag.GridDiscoveryData data) Receives discovery data object from remote nodes (called on new node during discovery process).
void	onJoiningNodeDataReceived(DiscoveryDataBag.JoiningNodeDiscoveryData data) Method is called on nodes that are already in grid (not on joining node).
void	onKernalStop(boolean cancel) Callback to notify that kernal is about to stop.
void	start() Starts grid component.

Methods inherited from class org.apache.ignite.internal.processors.GridProcessorAdapter

assertParameter, onKernalStart, onReconnected, printMemoryStats, stop, toString, validateNode, validateNode

Methods inherited from class java.lang.Object

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

Constructor Detail

GridMarshallerMappingProcessor

public GridMarshallerMappingProcessor(GridKernalContext ctx)

Parameters:

ctx - Kernal context.

Method Detail

start

public void start()
           throws IgniteCheckedException

Starts grid component.

Specified by:

start in interface GridComponent

Overrides:

start in class GridProcessorAdapter

Throws:

IgniteCheckedException - Throws in case of any errors.

addMappingUpdatedListener

public void addMappingUpdatedListener(MappingUpdatedListener lsnr)

Adds a listener to be notified when mapping changes.

Parameters:

lsnr - listener for mapping updated events.

currentMappings

public Iterator<Map.Entry<Byte,Map<Integer,String>>> currentMappings()

Gets an iterator over all current mappings.

Returns:

Iterator over current mappings.

collectJoiningNodeData

public void collectJoiningNodeData(DiscoveryDataBag dataBag)

Collects discovery data on joining node before sending TcpDiscoveryJoinRequestMessage request.

Specified by:

collectJoiningNodeData in interface GridComponent

Overrides:

collectJoiningNodeData in class GridProcessorAdapter

Parameters:

dataBag - container object to store discovery data in.

collectGridNodeData

public void collectGridNodeData(DiscoveryDataBag dataBag)

Collects discovery data on nodes already in grid on receiving TcpDiscoveryNodeAddedMessage.

Specified by:

collectGridNodeData in interface GridComponent

Overrides:

collectGridNodeData in class GridProcessorAdapter

Parameters:

dataBag - container object to store discovery data in.

onJoiningNodeDataReceived

public void onJoiningNodeDataReceived(DiscoveryDataBag.JoiningNodeDiscoveryData data)

Method is called on nodes that are already in grid (not on joining node). It receives discovery data from joining node.

Specified by:

onJoiningNodeDataReceived in interface GridComponent

Overrides:

onJoiningNodeDataReceived in class GridProcessorAdapter

Parameters:

data - DiscoveryDataBag.JoiningNodeDiscoveryData interface to retrieve discovery data of joining node.

onGridDataReceived

public void onGridDataReceived(DiscoveryDataBag.GridDiscoveryData data)

Receives discovery data object from remote nodes (called on new node during discovery process).

Specified by:

onGridDataReceived in interface GridComponent

Overrides:

onGridDataReceived in class GridProcessorAdapter

Parameters:

data - DiscoveryDataBag.GridDiscoveryData interface to retrieve discovery data collected on remote nodes (data common for all nodes in grid and specific for each node).

onDisconnected

public void onDisconnected(IgniteFuture<?> reconnectFut)
                    throws IgniteCheckedException

Client disconnected callback.

Specified by:

onDisconnected in interface GridComponent

Overrides:

onDisconnected in class GridProcessorAdapter

Parameters:

reconnectFut - Reconnect future.

Throws:

IgniteCheckedException - If failed.

onKernalStop

public void onKernalStop(boolean cancel)

Callback to notify that kernal is about to stop.

Specified by:

onKernalStop in interface GridComponent

Overrides:

onKernalStop in class GridProcessorAdapter

Parameters:

cancel - Flag indicating whether jobs should be canceled.

discoveryDataType

@Nullable
public GridComponent.DiscoveryDataExchangeType discoveryDataType()

Gets unique component type to distinguish components providing discovery data. Must return non-null value if component implements any of methods GridComponent.collectJoiningNodeData(DiscoveryDataBag) or GridComponent.collectGridNodeData(DiscoveryDataBag).

Specified by:

discoveryDataType in interface GridComponent

Overrides:

discoveryDataType in class GridProcessorAdapter

Returns:

Unique component type for discovery data exchange.