Package io.numaproj.numaflow.function

Class FunctionServer

java.lang.Object

io.numaproj.numaflow.function.FunctionServer

public class FunctionServer
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
FunctionServer()	constructor to create function gRPC server.
FunctionServer(io.grpc.ServerBuilder<?> serverBuilder, FunctionGRPCConfig grpcConfig)
FunctionServer(FunctionGRPCConfig grpcConfig)	constructor to create function gRPC server with gRPC config.

Method Summary

Modifier and Type	Method	Description
FunctionServer	registerMapHandler(MapHandler mapHandler)	registers the map handler to the server.
FunctionServer	registerMapTHandler(MapTHandler mapTHandler)	registers the mapT handler to the server.
FunctionServer	registerReducerFactory(ReducerFactory<? extends ReduceHandler> reducerFactory)	registers the reducer factory to the server.
void	start()	Starts the function server.
void	stop()	Stop serving requests and shutdown resources.

Methods inherited from class java.lang.Object

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

Constructor Detail

FunctionServer

public FunctionServer()

constructor to create function gRPC server.

FunctionServer

public FunctionServer(FunctionGRPCConfig grpcConfig)

constructor to create function gRPC server with gRPC config.

FunctionServer

public FunctionServer(io.grpc.ServerBuilder<?> serverBuilder,
                      FunctionGRPCConfig grpcConfig)

Method Detail

registerMapHandler

public FunctionServer registerMapHandler(MapHandler mapHandler)

registers the map handler to the server.

Parameters:

mapHandler - handler to process the message.

Returns:

returns a new Function gRPC server.

registerMapTHandler

public FunctionServer registerMapTHandler(MapTHandler mapTHandler)

registers the mapT handler to the server.

Parameters:

mapTHandler - handler to process the message and assign event time.

Returns:

returns a new Function gRPC server.

registerReducerFactory

public FunctionServer registerReducerFactory(ReducerFactory<? extends ReduceHandler> reducerFactory)

registers the reducer factory to the server.

Parameters:

reducerFactory - which produces reduce handlers to perform reduce operation.

Returns:

returns a new Function gRPC server.

start

public void start()
           throws java.lang.Exception

Starts the function server.

Throws:

java.lang.Exception - if there are any exceptions while processing the request.

stop

public void stop()

Stop serving requests and shutdown resources. Await termination on the main thread since the grpc library uses daemon threads.