Examples with Health io.servicetalk.health.v1.Health used on opensource projects

Example 1 with Health

use of io.servicetalk.health.v1.Health in project servicetalk by apple.

the class HealthClientExample method main.

public static void main(String... args) throws Exception {
    final String serviceName = "World";
    try (BlockingGreeterClient client = GrpcClients.forAddress("localhost", 8080).buildBlocking(new Greeter.ClientFactory());
        BlockingHealthClient healthClient = GrpcClients.forAddress("localhost", 8080).buildBlocking(new Health.ClientFactory())) {
        // Check health before
        checkHealth(healthClient, serviceName);
        HelloReply reply = client.sayHello(HelloRequest.newBuilder().setName("World").build());
        System.out.println("HelloReply=" + reply.getMessage());
        // Check the health after to observe it changed.
        checkHealth(healthClient, serviceName);
    }
}

Example 2 with Health

use of io.servicetalk.health.v1.Health in project servicetalk by apple.

the class HealthClientExample method checkHealth.

private static void checkHealth(BlockingHealthClient healthClient, String serviceName) throws Exception {
    try {
        HealthCheckResponse response = healthClient.check(HealthCheckRequest.newBuilder().setService(serviceName).build());
        System.out.println("Service '" + serviceName + "' health=" + response.getStatus());
    } catch (GrpcStatusException e) {
        System.out.println("Service '" + serviceName + "' health exception=" + e);
    }
}

Example 3 with Health

use of io.servicetalk.health.v1.Health in project servicetalk by apple.

the class DefaultHealthService method setStatus.

/**
 * Updates the status of the server.
 * @param service the name of some aspect of the server that is associated with a health status.
 * This name can have no relation with the gRPC services that the server is running with.
 * It can also be an empty String {@code ""} per the gRPC specification.
 * @param status is one of the values {@link ServingStatus#SERVING}, {@link ServingStatus#NOT_SERVING},
 * and {@link ServingStatus#UNKNOWN}.
 * @return {@code true} if this change was applied. {@code false} if it was not due to {@link #terminate()}.
 */
public boolean setStatus(String service, ServingStatus status) {
    final HealthCheckResponse resp;
    final HealthValue healthValue;
    lock.lock();
    try {
        if (terminated) {
            return false;
        }
        resp = newBuilder().setStatus(status).build();
        healthValue = serviceToStatusMap.computeIfAbsent(service, __ -> new HealthValue(resp));
    } finally {
        lock.unlock();
    }
    healthValue.next(resp);
    return true;
}