Examples of net.jini.lookup.LookupCache

net.jini.lookup.LookupCache
The LookupCache interface defines the methods provided by the object created and returned by the {@link net.jini.lookup.ServiceDiscoveryManager ServiceDiscoveryManager}when a client-like entity invokes the {@link net.jini.lookup.ServiceDiscoveryManager#createLookupCache createLookupCache} method. It is within the object returned by thatmethod that discovered service references, matching criteria defined by the entity, are stored. Through this interface, the entity may retrieve one or more of the stored service references, register and un-register with the cache's event mechanism, discard previously discovered service references to make them eligible for re-discovery, and terminate all of the cache's processing. @author Sun Microsystems, Inc. @see ServiceDiscoveryManager

                    // Needed to spawn in order to find the right classes.
                    Thread curThread = Thread.currentThread();
                    ClassLoader oldClassLoader = curThread.getContextClassLoader();
                    curThread.setContextClassLoader(Activator.class.getClassLoader());


                    LookupCache lookupCache = JiniServiceFactory.serviceDiscoveryManager.createLookupCache(test,
                            null, new Listener(test.serviceTypes));
                    serviceCaches.put(test, lookupCache);


                    curThread.setContextClassLoader(oldClassLoader);
                    oldClassLoader = null;

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        synchronized (this) {
            Iterator it = templates.iterator();


            while (it.hasNext()) {
                ServiceTemplate test = (ServiceTemplate) it.next();
                LookupCache lookupCache = (LookupCache) serviceCaches.remove(test);
                ServiceItem[] services = lookupCache.lookup(null,
                        Integer.MAX_VALUE);
                Debug.printDebugInfo(10,
                    "Services to discard (array object) " + services);


                for (int i = 0; i < services.length; i++) {
                    Debug.printDebugInfo(10,
                        "Discarding Service : " + services[i].service);
                    lookupCache.discard(services[i].service);
                }


                /* Terminating the cache should wait until the internal discardTask Thread
                 * gets the chance to send the events to the Listener. Wait a reasanble time.
                */
                try {
                    Thread.sleep(JiniDriverImpl.WAIT_TIME_MS);
                } catch (InterruptedException ex) {
                }


                lookupCache.terminate();


                Debug.printDebugInfo(10,
                    "LookupCache " + lookupCache + " terminated");
            }
        }

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                null);


        ServiceTemplate registrarTemplate = new ServiceTemplate(null,
                new Class[] { ServiceRegistrar.class }, null);


        LookupCache registrarCache = serviceDiscoveryManager.createLookupCache(registrarTemplate,
                null, new Listener(ServiceRegistrar.class));


        curThread.setContextClassLoader(oldClassLoader);
        oldClassLoader = null;
        curThread = null;

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        }
        /* createLookupCache */
        methodStr = new String("createLookupCache()");
        logger.log(Level.FINE, "invoking "+methodStr+" ...");
        try {
            LookupCache cache = srvcDiscoveryMgr.createLookupCache
                                                            (template,
                                                             firstStageFilter,
                                                             null);//listener
            logger.log(Level.FINE, errStr+methodStr);
            failed = true;

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        }
        /* createLookupCache */
        methodStr = new String("createLookupCache()");
        logger.log(Level.FINE, "invoking "+methodStr+" ...");
        try {
            LookupCache cache = srvcDiscoveryMgr.createLookupCache
                                                            (template,
                                                             firstStageFilter,
                                                             null);//listener
            logger.log(Level.FINE, errStr+methodStr);
            failed = true;

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        ServiceDiscoveryManager sdm = new ServiceDiscoveryManager(context.getDiscoveryManager(),
                                                                  new LeaseRenewalManager(context.getConfiguration()),
                                                                  context.getConfiguration());
        for(EventDescriptor eventDescriptor : context.getEventDescriptors()) {
            ServiceTemplate template = new ServiceTemplate(null, null, new Entry[]{eventDescriptor});
            LookupCache lCache = sdm.createLookupCache(template, null,  null);
            EventProducerManager eventProducerManager = new EventProducerManager(eventDescriptor, this, lCache);
            lCache.addListener(eventProducerManager);
            eventProducerManagers.add(eventProducerManager);
        }


    }

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Related Classes of net.jini.lookup.LookupCache

com.sun.jini.test.impl.servicediscovery.TerminateSemantics

org.knopflerfish.bundle.jini.JiniDriverImpl

org.knopflerfish.bundle.jini.JiniServiceFactory

org.rioproject.eventcollector.service.AbstractEventManager

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