Examples of org.rioproject.admin.MonitorableService

org.rioproject.admin.MonitorableService
A MonitorableService provides the semantics to determine if a service (which implements this interface) is reachable. One of two mechanisms can be used:
1. Establish a Lease to monitor the reachability of the Service. Using this method a Lease is returned. If the service is unreachable the Lease can not be renewed, a RemoteException will be thrown
2. The Service will use a heartbeat mechanism to notify the caller of it's existence
@author Dennis Reedy

     * the ServiceLeaseManager
     */
    protected ServiceMonitor getServiceMonitor() throws Exception {
        ServiceMonitor monitor = null;
        if(proxy instanceof MonitorableService) {
            MonitorableService service = (MonitorableService)proxy;
            Lease lease = service.monitor(leaseDuration);
            lease = (Lease)leasePreparer.prepareProxy(lease);
            serviceMonitor = new ServiceLeaseManager(lease);
        } else {
            logger.info("Service ["+proxy.getClass().getName()+"] not an "+
                        "instanceof "+MonitorableService.class.getName()+", "+

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            try {
                /*
                 * Invoke the service. If the service isnt active we'll get a
                 * RemoteException
                 */
                MonitorableService service = (MonitorableService)proxy;
                service.ping();
                verified = true;
            } catch(RemoteException e) {
                if(logger.isTraceEnabled())
                    logger.trace("RemoteException reaching service, "+
                                  "service cannot be reached");

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                                                      + proxy.getClass().getName()
                                                      + ", attempt "
                                                      + "["
                                                      + i
                                                      + "]");
                                    MonitorableService service = 
                                        (MonitorableService)proxy;
                                    t0 = System.currentTimeMillis();
                                    this.lease = service.monitor(leaseDuration);
                                    if(logger.isTraceEnabled())
                                        logger.trace("Re-established Lease to : "
                                                      + proxy.getClass().getName());
                                    connected = true;
                                    break;

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     */
    protected ServiceMonitor getServiceMonitor() throws Exception {                
        if(proxy instanceof MonitorableService) {
            if(serverSocket != null) {
                heartbeatManager = new HeartbeatManager();
                MonitorableService service = (MonitorableService)proxy;
                try {
                    service.startHeartbeat(monitorableConfig);
                } catch(Exception e) {
                    //notifyListeners();
                    throw e;
                }
            } else {

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Related Classes of org.rioproject.admin.MonitorableService

org.rioproject.impl.fdh.HeartbeatFaultDetectionHandler

org.rioproject.impl.fdh.LeaseFaultDetectionHandler

org.rioproject.impl.fdh.LeaseFaultDetectionHandler$ServiceLeaseManager

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