Package io.grpc.protobuf.services

Class HealthServiceImpl

java.lang.Object

io.grpc.health.v1.HealthGrpc.HealthImplBase

io.grpc.protobuf.services.HealthServiceImpl

All Implemented Interfaces:

BindableService, HealthGrpc.AsyncService

final class HealthServiceImpl
extends HealthGrpc.HealthImplBase

Field Summary

Fields

Modifier and Type	Field	Description
private static final Logger	logger
private final Map<String,HealthCheckResponse.ServingStatus>	statusMap
private boolean	terminal
private final HashMap<String,IdentityHashMap<StreamObserver<HealthCheckResponse>,Boolean>>	watchers
private final Object	watchLock

Constructor Summary

Constructors

Constructor	Description
HealthServiceImpl()

Method Summary

Modifier and Type	Method	Description
void	check(HealthCheckRequest request, StreamObserver<HealthCheckResponse> responseObserver)	If the requested service is unknown, the call will fail with status NOT_FOUND.
(package private) void	clearStatus(String service)
(package private) void	enterTerminalState()
private static HealthCheckResponse	getResponseForWatch(HealthCheckResponse.ServingStatus recordedStatus)
private void	notifyWatchers(String service, HealthCheckResponse.ServingStatus status)
(package private) int	numWatchersForTest(String service)
(package private) void	setStatus(String service, HealthCheckResponse.ServingStatus status)
private void	setStatusInternal(String service, HealthCheckResponse.ServingStatus status)
void	watch(HealthCheckRequest request, StreamObserver<HealthCheckResponse> responseObserver)	Performs a watch for the serving status of the requested service.

Methods inherited from class io.grpc.health.v1.HealthGrpc.HealthImplBase

bindService

Methods inherited from class java.lang.Object

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

Field Details

logger

private static final Logger logger

statusMap

private final Map<String,HealthCheckResponse.ServingStatus> statusMap

watchLock

private final Object watchLock

terminal

private boolean terminal

watchers

private final HashMap<String,IdentityHashMap<StreamObserver<HealthCheckResponse>,Boolean>> watchers

Constructor Details

HealthServiceImpl

HealthServiceImpl()

Method Details

check

public void check(HealthCheckRequest request,
 StreamObserver<HealthCheckResponse> responseObserver)

Description copied from interface: HealthGrpc.AsyncService

 If the requested service is unknown, the call will fail with status
 NOT_FOUND.
 

watch

public void watch(HealthCheckRequest request,
 StreamObserver<HealthCheckResponse> responseObserver)

Description copied from interface: HealthGrpc.AsyncService

 Performs a watch for the serving status of the requested service.
 The server will immediately send back a message indicating the current
 serving status.  It will then subsequently send a new message whenever
 the service's serving status changes.
 If the requested service is unknown when the call is received, the
 server will send a message setting the serving status to
 SERVICE_UNKNOWN but will *not* terminate the call.  If at some
 future point, the serving status of the service becomes known, the
 server will send a new message with the service's serving status.
 If the call terminates with status UNIMPLEMENTED, then clients
 should assume this method is not supported and should not retry the
 call.  If the call terminates with any other status (including OK),
 clients should retry the call with appropriate exponential backoff.
 

setStatus

void setStatus(String service,
 HealthCheckResponse.ServingStatus status)

setStatusInternal

private void setStatusInternal(String service,
 HealthCheckResponse.ServingStatus status)

clearStatus

void clearStatus(String service)

enterTerminalState

void enterTerminalState()

numWatchersForTest

int numWatchersForTest(String service)

notifyWatchers

private void notifyWatchers(String service,
 @Nullable
 HealthCheckResponse.ServingStatus status)

getResponseForWatch

private static HealthCheckResponse getResponseForWatch(@Nullable
 HealthCheckResponse.ServingStatus recordedStatus)