Package com.oracle.coherence.grpc.proxy

Class GrpcServerController

java.lang.Object

com.oracle.coherence.grpc.proxy.GrpcServerController

public class GrpcServerController
extends Object

A controller class that starts and stops the default gRPC server by responding to DefaultCacheServer lifecycle events.

Author:

Jonathan Knight 2020.09.24

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	GrpcServerController.Listener	A listener that will start the gRPC server base on Coherence or DefaultCacheServer lifecycle events.

Field Summary

Fields

Modifier and Type	Field	Description
static final GrpcServerController	INSTANCE	The singleton instance of the GrpcServerController.

Method Summary

Modifier and Type	Method	Description
String	getInProcessName()	Returns the name of the in-process gRPC server.
int	getPort()	Returns the port that the gRPC server has bound to.
boolean	isRunning()	Returns true if the server is running.
void	markStarted()	Mark the server as started.
void	setEnabled(boolean fEnabled)	Enable or disable this controller.
void	start()	Start the gRPC server.
void	stop()	Stop the server.
CompletionStage<Void>	whenStarted()	Obtain a CompletionStage that will be completed when the gRPC server has started.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final GrpcServerController INSTANCE

The singleton instance of the GrpcServerController.

Method Details

start

public void start()

Start the gRPC server.

If the server is already running this method is a no-op.

stop

public void stop()

Stop the server.

If the server is not running this method is a no-op.

markStarted

public void markStarted()

Mark the server as started.

This will complete the start-up CompletionStage if not already completed.

whenStarted

public CompletionStage<Void> whenStarted()

Obtain a CompletionStage that will be completed when the gRPC server has started.

Returns:

a CompletionStage that will be completed when the gRPC server has started

isRunning

public boolean isRunning()

Returns true if the server is running.

Returns:

true if the server is running

getPort

public int getPort()

Returns the port that the gRPC server has bound to.

Returns:

the port that the gRPC server has bound to

Throws:

IllegalStateException - if the server is not running

getInProcessName

public String getInProcessName()

Returns the name of the in-process gRPC server.

Returns:

the name of the in-process gRPC server

Throws:

IllegalStateException - if the server is not running

setEnabled

public void setEnabled(boolean fEnabled)

Enable or disable this controller.

If disabled then the gRPC proxy will not be started. this method can be used in applications where the gRPC services are being deployed manually or by some other mechanism such as CDI.

Parameters:

fEnabled - false to disable the controller.