io.siddhi.extension.io.grpc.source

Class AbstractGrpcSource

java.lang.Object

io.siddhi.core.stream.input.source.Source

io.siddhi.extension.io.grpc.source.AbstractGrpcSource

Direct Known Subclasses:

GrpcServiceSource, GrpcSource

public abstract class AbstractGrpcSource
extends io.siddhi.core.stream.input.source.Source

This is an abstract class extended by GrpcSource and GrpcServiceSource. This provides most of initialization implementations common for both sources

Nested Class Summary

Nested classes/interfaces inherited from class io.siddhi.core.stream.input.source.Source

io.siddhi.core.stream.input.source.Source.ConnectionCallback

Field Summary

Fields

Modifier and Type	Field and Description
protected GrpcServerConfigs	grpcServerConfigs
protected Class	requestClass
protected ServiceServer	serviceServer
protected io.siddhi.core.config.SiddhiAppContext	siddhiAppContext
protected String	siddhiAppName
protected io.siddhi.core.stream.input.source.SourceEventListener	sourceEventListener
protected String	streamID

Constructor Summary

Constructors

Constructor and Description
AbstractGrpcSource()

Method Summary

Modifier and Type	Method and Description
void	destroy() Called at the end to clean all the resources consumed by the Source.
protected io.siddhi.core.stream.ServiceDeploymentInfo	exposeServiceDeploymentInfo()
Class[]	getOutputEventClasses() Returns the list of classes which this source can output.
String[]	getRequestedTransportPropertyNames()
String	getStreamID()
void	handleInjection(Object payload, String[] headers)
io.siddhi.core.util.snapshot.state.StateFactory	init(io.siddhi.core.stream.input.source.SourceEventListener sourceEventListener, io.siddhi.core.util.transport.OptionHolder optionHolder, String[] requestedTransportPropertyNames, io.siddhi.core.util.config.ConfigReader configReader, io.siddhi.core.config.SiddhiAppContext siddhiAppContext) The initialization method for Source, will be called before other methods.
abstract void	initSource(io.siddhi.core.util.transport.OptionHolder optionHolder, String[] requestedTransportPropertyNames)
abstract void	logError(String message)

Methods inherited from class io.siddhi.core.stream.input.source.Source

connect, connectWithRetry, disconnect, getMapper, getServiceDeploymentInfo, getStreamDefinition, getType, init, isStateful, pause, resume, shutdown

Methods inherited from class java.lang.Object

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

Field Detail

siddhiAppContext

protected io.siddhi.core.config.SiddhiAppContext siddhiAppContext

sourceEventListener

protected io.siddhi.core.stream.input.source.SourceEventListener sourceEventListener

streamID

protected String streamID

grpcServerConfigs

protected GrpcServerConfigs grpcServerConfigs

siddhiAppName

protected String siddhiAppName

requestClass

protected Class requestClass

serviceServer

protected ServiceServer serviceServer

Constructor Detail

AbstractGrpcSource

public AbstractGrpcSource()

Method Detail

exposeServiceDeploymentInfo

protected io.siddhi.core.stream.ServiceDeploymentInfo exposeServiceDeploymentInfo()

Specified by:

exposeServiceDeploymentInfo in class io.siddhi.core.stream.input.source.Source

init

public io.siddhi.core.util.snapshot.state.StateFactory init(io.siddhi.core.stream.input.source.SourceEventListener sourceEventListener,
                                                            io.siddhi.core.util.transport.OptionHolder optionHolder,
                                                            String[] requestedTransportPropertyNames,
                                                            io.siddhi.core.util.config.ConfigReader configReader,
                                                            io.siddhi.core.config.SiddhiAppContext siddhiAppContext)

The initialization method for Source, will be called before other methods. It used to validate all configurations and to get initial values.

Specified by:

init in class io.siddhi.core.stream.input.source.Source

Parameters:

sourceEventListener - After receiving events, the source should trigger onEvent() of this listener. Listener will then pass on the events to the appropriate mappers for processing .

optionHolder - Option holder containing static configuration related to the Source

configReader - ConfigReader is used to read the Source related system configuration.

siddhiAppContext - the context of the SiddhiApp used to get Siddhi

handleInjection

public void handleInjection(Object payload,
                            String[] headers)

initSource

public abstract void initSource(io.siddhi.core.util.transport.OptionHolder optionHolder,
                                String[] requestedTransportPropertyNames)

getOutputEventClasses

public Class[] getOutputEventClasses()

Returns the list of classes which this source can output.

Specified by:

getOutputEventClasses in class io.siddhi.core.stream.input.source.Source

destroy

public void destroy()

Called at the end to clean all the resources consumed by the Source.

Specified by:

destroy in class io.siddhi.core.stream.input.source.Source

getRequestedTransportPropertyNames

public String[] getRequestedTransportPropertyNames()

getStreamID

public String getStreamID()

logError

public abstract void logError(String message)