Example usage for com.google.common.util.concurrent Service toString

Introduction

In this page you can find the example usage for com.google.common.util.concurrent Service toString.

Prototype

public String toString() 

Source Link

Document

Returns a string representation of the object.

Usage

From source file:gobblin.scheduler.Worker.java

/**
 * Start this worker./*from  ww  w .jav a 2  s . c  o m*/
 */
public void start() {
    this.serviceManager.addListener(new ServiceManager.Listener() {

        @Override
        public void stopped() {
            LOG.info("Worker has been stopped");
        }

        @Override
        public void healthy() {
            LOG.info("All services are health and running");
            // Report services' uptimes
            Map<Service, Long> startupTimes = serviceManager.startupTimes();
            for (Map.Entry<Service, Long> entry : startupTimes.entrySet()) {
                LOG.info(String.format("Service %s is healthy with an uptime of %dms",
                        entry.getKey().toString(), entry.getValue()));
            }
        }

        @Override
        public void failure(Service service) {
            LOG.error(String.format("Service %s failed for the following reason:%n\t%s", service.toString(),
                    service.failureCause().toString()));
            System.exit(1);
        }
    }, Executors.newSingleThreadExecutor(ExecutorsUtils.newThreadFactory(Optional.of(LOG))));

    // Add a shutdown hook so the task scheduler gets properly shutdown
    Runtime.getRuntime().addShutdownHook(new Thread() {

        public void run() {
            // Give the services 5 seconds to stop to ensure that we are
            // responsive to shutdown requests
            LOG.info("Shutting down the worker");
            try {
                serviceManager.stopAsync().awaitStopped(5, TimeUnit.SECONDS);
            } catch (TimeoutException te) {
                LOG.error("Timeout in stopping the service manager", te);
            }
        }
    });

    LOG.info("Starting the worker with configured services");
    // Start the worker
    this.serviceManager.startAsync();
}

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