org.apache.ignite.spi

Interface IgniteSpiContext

public interface IgniteSpiContext

SPI context provides common functionality for all SPI implementations.

Method Summary

Modifier and Type	Method and Description
void	addLocalEventListener(org.apache.ignite.internal.managers.eventstorage.GridLocalEventListener lsnr, int... types) Adds an event listener for local events.
void	addLocalMessageListener(@Nullable Object topic, IgniteBiPredicate<UUID,?> p) Register an local message listener to receive messages sent by remote nodes.
void	addMessageListener(org.apache.ignite.internal.managers.communication.GridMessageListener lsnr, String topic) Deprecated. Use addLocalMessageListener(Object, IgniteBiPredicate) instead.
void	addTimeoutObject(IgniteSpiTimeoutObject c)
SecuritySubject	authenticatedSubject(UUID subjId) Gets security subject based on subject ID.
Collection<SecuritySubject>	authenticatedSubjects() Gets collection of authenticated subjects together with their permissions.
boolean	communicationFailureResolveSupported()
<K> boolean	containsKey(String cacheName, K key) Returns true if this cache contains a mapping for the specified key.
void	deregisterPort(int port, IgnitePortProtocol proto) Deregisters closed port.
void	deregisterPorts() Deregisters all closed ports.
void	failNode(UUID nodeId, @Nullable String warning)
<K,V> V	get(String cacheName, K key) Gets object from cache.
boolean	isEventRecordable(int... types) Checks whether all provided event types are recordable.
boolean	isStopping()
ClusterNode	localNode() Gets local grid node.
MessageFactory	messageFactory() Gets message factory.
MessageFormatter	messageFormatter() Gets message formatter.
@Nullable ClusterNode	node(UUID nodeId) Gets a node instance based on its ID.
Map<String,Object>	nodeAttributes()
Collection<ClusterNode>	nodes() Gets a collection of all grid nodes.
int	partition(String cacheName, Object key) Calculates partition number for given key.
boolean	pingNode(UUID nodeId) Pings a remote node.
<K,V> V	put(String cacheName, K key, V val, long ttl) Puts object in cache.
<K,V> V	putIfAbsent(String cacheName, K key, V val, long ttl) Puts object into cache if there was no previous object associated with given key.
void	recordEvent(Event evt) Records local event.
void	registerPort(int port, IgnitePortProtocol proto) Registers open port.
Collection<ClusterNode>	remoteDaemonNodes() Gets a collection of all remote daemon nodes in topology.
Collection<ClusterNode>	remoteNodes() Gets a collection of remote grid nodes.
<K,V> V	remove(String cacheName, K key) Removes object from cache.
boolean	removeLocalEventListener(org.apache.ignite.internal.managers.eventstorage.GridLocalEventListener lsnr) Removes local event listener.
void	removeLocalMessageListener(@Nullable Object topic, IgniteBiPredicate<UUID,?> p) Removes a previously registered local message listener.
boolean	removeMessageListener(org.apache.ignite.internal.managers.communication.GridMessageListener lsnr, String topic) Deprecated. Use removeLocalMessageListener(Object, IgniteBiPredicate) instead.
void	removeTimeoutObject(IgniteSpiTimeoutObject c)
void	resolveCommunicationFailure(ClusterNode node, Exception err)
void	send(ClusterNode node, Serializable msg, String topic) Sends a message to a remote node.
boolean	tryFailNode(UUID nodeId, @Nullable String warning)
@Nullable IgniteNodeValidationResult	validateNode(ClusterNode node) Validates that new node can join grid topology, this method is called on coordinator node before new node joins topology.
@Nullable IgniteNodeValidationResult	validateNode(ClusterNode node, DiscoveryDataBag discoData)

Method Detail

remoteNodes

Collection<ClusterNode> remoteNodes()

Gets a collection of remote grid nodes. Remote nodes are discovered via underlying DiscoverySpi implementation used. Unlike nodes(), this method does not include local grid node.

Returns:

Collection of remote grid nodes.

See Also:

localNode(), nodes(), DiscoverySpi

nodes

Collection<ClusterNode> nodes()

Gets a collection of all grid nodes. Remote nodes are discovered via underlying DiscoverySpi implementation used. Unlike remoteNodes(), this method does include local grid node.

Returns:

Collection of remote grid nodes.

See Also:

localNode(), remoteNodes(), DiscoverySpi

localNode

ClusterNode localNode()

Gets local grid node. Instance of local node is provided by underlying DiscoverySpi implementation used.

Returns:

Local grid node.

See Also:

DiscoverySpi

remoteDaemonNodes

Collection<ClusterNode> remoteDaemonNodes()

Gets a collection of all remote daemon nodes in topology. The daemon nodes are discovered via underlying DiscoverySpi implementation used.

Returns:

Collection of all daemon nodes.

See Also:

localNode(), remoteNodes(), nodes(), DiscoverySpi

node

@Nullable
@Nullable ClusterNode node(UUID nodeId)

Gets a node instance based on its ID.

Parameters:

nodeId - ID of a node to get.

Returns:

Node for a given ID or null is such not has not been discovered.

See Also:

DiscoverySpi

pingNode

boolean pingNode(UUID nodeId)

Pings a remote node. The underlying communication is provided via DiscoverySpi.pingNode(UUID) implementation.

Discovery SPIs usually have some latency in discovering failed nodes. Hence, communication to remote nodes may fail at times if an attempt was made to establish communication with a failed node. This method can be used to check if communication has failed due to node failure or due to some other reason.

Parameters:

nodeId - ID of a node to ping.

Returns:

true if node for a given ID is alive, false otherwise.

See Also:

DiscoverySpi

send

void send(ClusterNode node,
          Serializable msg,
          String topic)
   throws IgniteSpiException

Sends a message to a remote node. The underlying communication mechanism is defined by CommunicationSpi implementation used.

Parameters:

node - Node to send a message to.

msg - Message to send.

topic - Topic to send message to.

Throws:

IgniteSpiException - If failed to send a message to remote node.

addLocalMessageListener

void addLocalMessageListener(@Nullable
                             @Nullable Object topic,
                             IgniteBiPredicate<UUID,?> p)

Register an local message listener to receive messages sent by remote nodes. The underlying communication mechanism is defined by CommunicationSpi implementation used.

Parameters:

topic - Topic to subscribe to.

p - Message predicate.

removeLocalMessageListener

void removeLocalMessageListener(@Nullable
                                @Nullable Object topic,
                                IgniteBiPredicate<UUID,?> p)

Removes a previously registered local message listener.

Parameters:

topic - Topic to unsubscribe from.

p - Message predicate.

addMessageListener

@Deprecated
void addMessageListener(org.apache.ignite.internal.managers.communication.GridMessageListener lsnr,
                                    String topic)

Deprecated. Use addLocalMessageListener(Object, IgniteBiPredicate) instead.

Register a message listener to receive messages sent by remote nodes. The underlying communication mechanism is defined by CommunicationSpi implementation used.

This method can be used by jobs to communicate with other nodes in the grid. Remote nodes can send messages by calling send(org.apache.ignite.cluster.ClusterNode, Serializable, String) method.

Parameters:

lsnr - Message listener to register.

topic - Topic to register listener for.

removeMessageListener

@Deprecated
boolean removeMessageListener(org.apache.ignite.internal.managers.communication.GridMessageListener lsnr,
                                          String topic)

Deprecated. Use removeLocalMessageListener(Object, IgniteBiPredicate) instead.

Removes a previously registered message listener.

Parameters:

lsnr - Message listener to remove.

topic - Topic to unregister listener for.

Returns:

true of message listener was removed, false if it was not previously registered.

addLocalEventListener

void addLocalEventListener(org.apache.ignite.internal.managers.eventstorage.GridLocalEventListener lsnr,
                           int... types)

Adds an event listener for local events.

Parameters:

lsnr - Event listener for local events.

types - Optional types for which this listener will be notified. If no types are provided this listener will be notified for all local events.

See Also:

Event

removeLocalEventListener

boolean removeLocalEventListener(org.apache.ignite.internal.managers.eventstorage.GridLocalEventListener lsnr)

Removes local event listener.

Parameters:

lsnr - Local event listener to remove.

Returns:

true if listener was removed, false otherwise.

isEventRecordable

boolean isEventRecordable(int... types)

Checks whether all provided event types are recordable.

Parameters:

types - Event types to check.

Returns:

Whether or not all provided event types are recordable..

recordEvent

void recordEvent(Event evt)

Records local event.

Parameters:

evt - Local grid event to record.

registerPort

void registerPort(int port,
                  IgnitePortProtocol proto)

Registers open port.

Parameters:

port - Port.

proto - Protocol.

deregisterPort

void deregisterPort(int port,
                    IgnitePortProtocol proto)

Deregisters closed port.

Parameters:

port - Port.

proto - Protocol.

deregisterPorts

void deregisterPorts()

Deregisters all closed ports.

get

@Nullable
<K,V> V get(String cacheName,
                      K key)
               throws javax.cache.CacheException

Gets object from cache.

Parameters:

cacheName - Cache name.

key - Object key.

Returns:

Cached object.

Throws:

javax.cache.CacheException - Thrown if any exception occurs.

put

@Nullable
<K,V> V put(String cacheName,
                      K key,
                      V val,
                      long ttl)
               throws javax.cache.CacheException

Puts object in cache.

Type Parameters:

K - Key type.

V - Value type.

Parameters:

cacheName - Cache name.

key - Object key.

val - Cached object.

ttl - Time to live, 0 means the entry will never expire.

Returns:

Previous value associated with specified key, possibly null.

Throws:

javax.cache.CacheException - Thrown if any exception occurs.

putIfAbsent

@Nullable
<K,V> V putIfAbsent(String cacheName,
                              K key,
                              V val,
                              long ttl)
                       throws javax.cache.CacheException

Puts object into cache if there was no previous object associated with given key.

Type Parameters:

K - Cache key type.

V - Cache value type.

Parameters:

cacheName - Cache name.

key - Cache key.

val - Cache value.

ttl - Time to live.

Returns:

Either existing value or null if there was no value for given key.

Throws:

javax.cache.CacheException - If put failed.

remove

@Nullable
<K,V> V remove(String cacheName,
                         K key)
                  throws javax.cache.CacheException

Removes object from cache.

Type Parameters:

K - Key type.

V - Value type.

Parameters:

cacheName - Cache name.

key - Object key.

Returns:

Previous value associated with specified key, possibly null.

Throws:

javax.cache.CacheException - Thrown if any exception occurs.

containsKey

<K> boolean containsKey(String cacheName,
                        K key)

Returns true if this cache contains a mapping for the specified key.

Type Parameters:

K - Key type.

Parameters:

cacheName - Cache name.

key - Object key.

Returns:

true if this cache contains a mapping for the specified key.

partition

int partition(String cacheName,
              Object key)

Calculates partition number for given key.

Parameters:

cacheName - Cache name.

key - Key.

Returns:

Partition.

validateNode

@Nullable
@Nullable IgniteNodeValidationResult validateNode(ClusterNode node)

Validates that new node can join grid topology, this method is called on coordinator node before new node joins topology.

Parameters:

node - Joining node.

Returns:

Validation result or null in case of success.

validateNode

@Nullable
@Nullable IgniteNodeValidationResult validateNode(ClusterNode node,
                                                            DiscoveryDataBag discoData)

Parameters:

node - Node.

discoData - Disco data.

authenticatedSubjects

Collection<SecuritySubject> authenticatedSubjects()
                                           throws IgniteException

Gets collection of authenticated subjects together with their permissions.

Returns:

Collection of authenticated subjects.

Throws:

IgniteException - If any exception occurs.

authenticatedSubject

SecuritySubject authenticatedSubject(UUID subjId)
                              throws IgniteException

Gets security subject based on subject ID.

Parameters:

subjId - Subject ID.

Returns:

Authorized security subject.

Throws:

IgniteException - If any exception occurs.

messageFormatter

MessageFormatter messageFormatter()

Gets message formatter.

Returns:

Message formatter.

messageFactory

MessageFactory messageFactory()

Gets message factory.

Returns:

Message factory.

isStopping

boolean isStopping()

Returns:

True if node started shutdown sequence.

tryFailNode

boolean tryFailNode(UUID nodeId,
                    @Nullable
                    @Nullable String warning)

Parameters:

nodeId - Node ID.

warning - Warning to be shown on all cluster nodes.

Returns:

If node was failed.

failNode

void failNode(UUID nodeId,
              @Nullable
              @Nullable String warning)

Parameters:

nodeId - Node ID.

warning - Warning to be shown on all cluster nodes.

addTimeoutObject

void addTimeoutObject(IgniteSpiTimeoutObject c)

Parameters:

c - Timeout object.

removeTimeoutObject

void removeTimeoutObject(IgniteSpiTimeoutObject c)

Parameters:

c - Timeout object.

nodeAttributes

Map<String,Object> nodeAttributes()

Returns:

Current node attributes.

communicationFailureResolveSupported

boolean communicationFailureResolveSupported()

Returns:

True if cluster supports communication error resolving.

resolveCommunicationFailure

void resolveCommunicationFailure(ClusterNode node,
                                 Exception err)

Parameters:

node - Problem node.

err - Error.