Package io.siddhi.core.util.transport

Class SingleClientDistributedSink

java.lang.Object

io.siddhi.core.stream.output.sink.Sink

io.siddhi.core.stream.output.sink.distributed.DistributedTransport

io.siddhi.core.util.transport.SingleClientDistributedSink

All Implemented Interfaces:

SinkListener

public class SingleClientDistributedSink
extends DistributedTransport

This class implements a the distributed sink that could publish to multiple destination using a single client/publisher. Following are some examples, - In a case where there are multiple partitions in a single topic in Kafka, the same kafka client can be used to send events to all the partitions within the topic. - The same email client can send email to different addresses.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	SingleClientDistributedSink.SingleClientConnectionCallback	Connection callback to notify DistributionStrategy about new connection initiations and failures

Nested classes/interfaces inherited from class io.siddhi.core.stream.output.sink.distributed.DistributedTransport

DistributedTransport.ConnectionCallback

Nested classes/interfaces inherited from class io.siddhi.core.stream.output.sink.Sink

Sink.OnErrorAction

Field Summary

Fields inherited from class io.siddhi.core.stream.output.sink.distributed.DistributedTransport

siddhiAppContext, strategy, streamDefinition

Fields inherited from class io.siddhi.core.stream.output.sink.Sink

isTryingToConnect

Constructor Summary

Constructors

Constructor	Description
SingleClientDistributedSink()

Method Summary

Modifier and Type	Method	Description
void	connect()	Will be called to connect to the backend before events are published
void	destroy()	Will be called at the end to clean all the resources consumed
void	disconnect()	Will be called after all publishing is done, or when ConnectionUnavailableException is thrown
protected ServiceDeploymentInfo	exposeServiceDeploymentInfo()	Give information to the deployment about the service exposed by the sink.
List<ServiceDeploymentInfo>	getServiceDeploymentInfoList()
Class[]	getSupportedInputEventClasses()
void	initTransport(OptionHolder sinkOptionHolder, List<OptionHolder> destinationOptionHolders, Map<String,String> deploymentProperties, List<Map<String,String>> destinationDeploymentProperties, io.siddhi.query.api.annotation.Annotation sinkAnnotation, ConfigReader sinkConfigReader, DistributionStrategy strategy, String type, SiddhiAppContext siddhiAppContext)
void	publish(Object payload, DynamicOptions transportOptions, Integer destinationId, State s)

Methods inherited from class io.siddhi.core.stream.output.sink.distributed.DistributedTransport

getSupportedDynamicOptions, init, init, isConnected, publish

Methods inherited from class io.siddhi.core.stream.output.sink.Sink

connectWithRetry, getHandler, getMapper, getStreamDefinition, getType, init, initOnlyTransport, isStateful, onError, publish, retryPublish, setConnected, shutdown

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleClientDistributedSink

public SingleClientDistributedSink()

Method Detail

publish

public void publish(Object payload,
                    DynamicOptions transportOptions,
                    Integer destinationId,
                    State s)
             throws ConnectionUnavailableException

Specified by:

publish in class DistributedTransport

Throws:

ConnectionUnavailableException

initTransport

public void initTransport(OptionHolder sinkOptionHolder,
                          List<OptionHolder> destinationOptionHolders,
                          Map<String,String> deploymentProperties,
                          List<Map<String,String>> destinationDeploymentProperties,
                          io.siddhi.query.api.annotation.Annotation sinkAnnotation,
                          ConfigReader sinkConfigReader,
                          DistributionStrategy strategy,
                          String type,
                          SiddhiAppContext siddhiAppContext)

Specified by:

initTransport in class DistributedTransport

getSupportedInputEventClasses

public Class[] getSupportedInputEventClasses()

Specified by:

getSupportedInputEventClasses in class Sink

connect

public void connect()
             throws ConnectionUnavailableException

Will be called to connect to the backend before events are published

Specified by:

connect in class Sink

Throws:

ConnectionUnavailableException - if it cannot connect to the backend

disconnect

public void disconnect()

Will be called after all publishing is done, or when ConnectionUnavailableException is thrown

Specified by:

disconnect in class Sink

destroy

public void destroy()

Will be called at the end to clean all the resources consumed

Specified by:

destroy in class Sink

exposeServiceDeploymentInfo

protected ServiceDeploymentInfo exposeServiceDeploymentInfo()

Description copied from class: Sink

Give information to the deployment about the service exposed by the sink.

Specified by:

exposeServiceDeploymentInfo in class Sink

Returns:

ServiceDeploymentInfo Service related information to the deployment

getServiceDeploymentInfoList

public List<ServiceDeploymentInfo> getServiceDeploymentInfoList()

Overrides:

getServiceDeploymentInfoList in class Sink