Examples of org.jboss.cache.factories.ComponentRegistry

org.jboss.cache.factories.ComponentRegistry
A registry where components which have been created are stored. Components are stored as singletons, registered under a specific name.
Components can be retrieved from the registry using {@link #getComponent(Class)}.
Components can be registered using {@link #registerComponent(Object,Class)}, which will cause any dependencies to be wired in as well. Components that need to be created as a result of wiring will be done using {@link #getOrCreateComponent(Class)}, which will look up the default factory for the component type (factories annotated with the appropriate {@link DefaultFactoryFor} annotation.
Default factories are treated as components too and will need to be wired before being used.
The registry can exist in one of several states, as defined by the {@link CacheStatus} enumeration. In terms of the cache,state changes in the following manner:
- INSTANTIATED - when first constructed
- CONSTRUCTED - when created using the DefaultCacheFactory
- When {@link org.jboss.cache.Cache#create()} is called, the components are rewired.
- STARTED - when {@link org.jboss.cache.Cache#start()} is called
- STOPPED - when {@link org.jboss.cache.Cache#stop()} is called
- DESTROYED - when {@link org.jboss.cache.Cache#destroy()} is called.
Cache configuration can only be changed and will only be reinjected if the cache is not in the {@link org.jboss.cache.CacheStatus#STARTED} state. @author Manik Surtani (manik AT jboss DOT org) @since 2.1.0

   public void setUp() throws Exception
   {
      listener = new TestListener();
      cache = createCacheWithListener(listener);


      ComponentRegistry cr = TestingUtil.extractComponentRegistry(cache);


      Interceptor interceptor = new OptimisticCreateIfNotExistsInterceptor();
      cr.registerComponent(interceptor, OptimisticCreateIfNotExistsInterceptor.class);
      Interceptor nodeInterceptor = new OptimisticNodeInterceptor();
      cr.registerComponent(nodeInterceptor, OptimisticNodeInterceptor.class);
      dummy = new MockInterceptor();
      cr.registerComponent(dummy, MockInterceptor.class);


      interceptor.setNext(nodeInterceptor);
      nodeInterceptor.setNext(dummy);


      TestingUtil.replaceInterceptorChain(cache, interceptor);

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      final CountDownLatch mainThreadCommitLatch = new CountDownLatch(1);
      final CountDownLatch secondThreadPrepareLatch = new CountDownLatch(1);
      final Fqn fqn = Fqn.fromString("/a/b/c");


      DelayingRPCManager delayingRPCManager = new DelayingRPCManager(mainThreadCommitLatch, secondThreadPrepareLatch, syncCommit, noOutOfBandMessages);
      ComponentRegistry cr = TestingUtil.extractComponentRegistry(c1);
      cr.registerComponent(RPCManager.class.getName(), delayingRPCManager, RPCManager.class);


      c1.start();
      c2.start();


      TestingUtil.blockUntilViewsReceived(60000, c1, c2);

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      // Put the cache in the map before starting, so if it fails in
      // start it can still be destroyed later
      caches.put("secretive", cache);


      // inject our own message listener and re-wire deps
      ComponentRegistry cr = TestingUtil.extractComponentRegistry(cache);
//      cr.unregisterComponent(CacheMessageListener.class);
      cr.registerComponent(CacheMessageListener.class.getName(), new SecretiveStateCacheMessageListener(), CacheMessageListener.class);
//      cr.updateDependencies();


      cache.start();




      CacheSPI recipient = (CacheSPI) new DefaultCacheFactory().createCache(UnitTestCacheConfigurationFactory.createConfiguration(CacheMode.REPL_ASYNC), false);
      recipient.getConfiguration().setClusterName("VersionedTestBase");
      recipient.getConfiguration().setReplVersionString(getReplicationVersion());
      // Use a long timeout to facilitate setting debugger breakpoints
      recipient.getConfiguration().setStateRetrievalTimeout(60000);


      //Put the cache in the map before starting, so if it fails in
      // start it can still be destroyed later
      caches.put("secretive2", recipient);


      // inject our own message listener and re-wire deps
      cr = TestingUtil.extractComponentRegistry(recipient);
      //cr.unregisterComponent(CacheMessageListener.class);
      cr.registerComponent(CacheMessageListener.class.getName(), new SecretiveStateCacheMessageListener(), CacheMessageListener.class);
      //cr.updateDependencies();


      try
      {
         recipient.start();

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    * @param cache cache to introspect
    * @return component registry
    */
   public static ComponentRegistry extractComponentRegistry(CacheImpl ci)
   {
      ComponentRegistry cr = (ComponentRegistry) extractField(ci, "componentRegistry");
      return cr;
   }

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    * @param cache       cache that needs to be altered
    * @param interceptor the first interceptor in the new chain.
    */
   public static void replaceInterceptorChain(CacheSPI<?, ?> cache, Interceptor interceptor)
   {
      ComponentRegistry cr = extractComponentRegistry(cache);


      // This will replace the previous interceptor chain in the component registry
      // as well as update dependencies!
      cr.registerComponent(Interceptor.class.getName(), interceptor, Interceptor.class);
   }

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    * @param cache cache instance for which a remote delegate is to be retrieved
    * @return remote delegate, or null if the cacge is not configured for replication.
    */
   public static RemoteCacheInvocationDelegate getRemoteDelegate(CacheSPI cache)
   {
      ComponentRegistry cr = extractComponentRegistry(cache);
      return cr.getComponent("remoteDelegate", RemoteCacheInvocationDelegate.class);
   }

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    * Make sure the 2 caches have different component instances
    */
   public void testSeparateNotifiersAndListeners()
   {
      assert cache1 != cache2;
      ComponentRegistry cr1, cr2;
      cr1 = TestingUtil.extractComponentRegistry(cache1);
      cr2 = TestingUtil.extractComponentRegistry(cache2);
      assert cr1 != cr2;
      assert cr1.getComponent(Notifier.class) != cr2.getComponent(Notifier.class);
      assert eventLog1 != eventLog2;
      assert cache1.getLocalAddress() != cache2.getLocalAddress();
      CacheSPI spi1, spi2;
      spi1 = (CacheSPI) cache1;
      spi2 = (CacheSPI) cache2;

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   {
      Pojo pojo = new Pojo();
      MarshalledValue mv = new MarshalledValue(pojo);


      Configuration c = new Configuration();
      ComponentRegistry cr = new ComponentRegistry(c);


      Marshaller marshaller = new CacheMarshaller210();
      cr.registerComponent(marshaller, Marshaller.class);


      // Wire the marshaller
      cr.start();


      // start the test
      ByteArrayOutputStream bout = new ByteArrayOutputStream();
      ObjectOutputStream out = new ObjectOutputStream(bout);
      marshaller.objectToObjectStream(mv, out);

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      regionManager = new RegionManager();
      c = new Configuration();
      c.setUseRegionBasedMarshalling(false);
      c.setInactiveOnStartup(false);
      c.setReplVersionString(currentVersion);
      cr = new ComponentRegistry(c);
      //c.setUseReferenceCounting(true);
      marshaller = createVAMandRestartCache(regionManager);
   }

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public class VersionAwareMarshallerTest extends AbstractVersionAwareMarshallerTest
{
   @BeforeMethod
   public void setUp()
   {
      cr = new ComponentRegistry(new Configuration());
   }

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