Example usage for org.apache.hadoop.service Service getServiceState

Introduction

In this page you can find the example usage for org.apache.hadoop.service Service getServiceState.

Prototype

STATE getServiceState();

Source Link

Document

Get the current service state

Usage

From source file:MRAppMaster.CompositeService.java

License:Apache License

/**
 * Stop the services in reverse order// w  w  w .j ava2 s.co  m
 *
 * @param numOfServicesStarted index from where the stop should work
 * @param stopOnlyStartedServices flag to say "only start services that are
 * started, not those that are NOTINITED or INITED.
 * @throws RuntimeException the first exception raised during the
 * stop process -<i>after all services are stopped</i>
 */
private void stop(int numOfServicesStarted, boolean stopOnlyStartedServices) {
    // stop in reverse order of start
    Exception firstException = null;
    List<Service> services = getServices();
    for (int i = numOfServicesStarted - 1; i >= 0; i--) {
        Service service = services.get(i);
        if (LOG.isDebugEnabled()) {
            LOG.debug("Stopping service #" + i + ": " + service);
        }
        STATE state = service.getServiceState();
        //depending on the stop police
        if (state == STATE.STARTED || (!stopOnlyStartedServices && state == STATE.INITED)) {
            Exception ex = ServiceOperations.stopQuietly(LOG, service);
            if (ex != null && firstException == null) {
                firstException = ex;
            }
        }
    }
    //after stopping all services, rethrow the first exception raised
    if (firstException != null) {
        throw ServiceStateException.convert(firstException);
    }
}

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From source file:org.apache.slider.server.services.workflow.WorkflowServiceTestBase.java

License:Apache License

protected void assertInState(Service service, Service.STATE expected) {
    Service.STATE actual = service.getServiceState();
    if (actual != expected) {
        fail("Service " + service.getName() + " in state " + actual + " -expected " + expected);
    }//from   ww w .j  a v  a  2s .c  o m
}

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