Examples of org.apache.catalina.Engine

org.apache.catalina.Engine
An Engine is a Container that represents the entire Catalina servlet engine. It is useful in the following types of scenarios:
- You wish to use Interceptors that see every single request processed by the entire engine.
- You wish to run Catalina in with a standalone HTTP connector, but still want support for multiple virtual hosts.
In general, you would not use an Engine when deploying Catalina connected to a web server (such as Apache), because the Connector will have utilized the web server's facilities to determine which Context (or perhaps even which Wrapper) should be utilized to process this request.
The child containers attached to an Engine are generally implementations of Host (representing a virtual host) or Context (representing individual an individual servlet context), depending upon the Engine implementation.
If used, an Engine is always the top level Container in a Catalina hierarchy. Therefore, the implementation's setParent() method should throw IllegalArgumentException. @author Craig R. McClanahan @version $Revision: 466595 $ $Date: 2006-10-21 23:24:41 +0100 (Sat, 21 Oct 2006) $

   {
      Service[] services = server.findServices();
      for (int i = 0; i < services.length; i++)
      {
         Service service = services[i];
         Engine engine = getEngine(service.getContainer());
         if (engine != null)
         {
            return engine;
         }
      }

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        if( log.isDebugEnabled() )
            log.debug("Adding engine (" + engine.getInfo() + ")");


        // Add this Engine to our set of defined Engines
        Engine results[] = new Engine[engines.length + 1];
        for (int i = 0; i < engines.length; i++)
            results[i] = engines[i];
        results[engines.length] = engine;
        engines = results;

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        // Remove this Engine from our set of defined Engines
        if( log.isDebugEnabled() )
            log.debug(" Removing this Engine");
        int k = 0;
        Engine results[] = new Engine[engines.length - 1];
        for (int i = 0; i < engines.length; i++) {
            if (i != j)
                results[k++] = engines[i];
        }
        engines = results;

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        final StandardService service = new StandardService();
        service.setName(JBOSS_WEB);
        service.setServer(server);
        server.addService(service);


        final Engine engine = new StandardEngine();
        engine.setName(JBOSS_WEB);
        engine.setService(service);
        engine.setDefaultHost(defaultHost);
        if (instanceId != null) {
            engine.setJvmRoute(instanceId);
        }


        service.setContainer(engine);


        if (useNative) {

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        service.removeConnector(connector);
    }


    /** {@inheritDoc} */
    public synchronized void addHost(Host host) {
        final Engine engine = this.engine;
        engine.addChild(host);
    }

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        engine.addChild(host);
    }


    /** {@inheritDoc} */
    public synchronized void removeHost(Host host) {
        final Engine engine = this.engine;
        engine.removeChild(host);
    }

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     *
     * @throws Exception
     */
    @Test
    public void testNewSessionIsOutdated() throws Exception {
        Engine engine = new MockEngine();
        engine.setName("jboss.web");
        Host host = new MockHost();
        host.setName("localhost");
        engine.addChild(host);
        StandardContext context = new StandardContext();
        context.setName("test");
        host.addChild(context);
        
        DistributableSessionManager<?> mgr = new DistributableSessionManager<OutgoingDistributableSessionData>(new MockDistributedCacheManagerFactory(), context, SessionTestUtil.createWebMetaData(10), new ContextClassResolver());

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        factory.getCacheContainerInjector().inject(cacheContainer);
        factory.getCacheConfigurationInjector().inject(jvmRouteCache.getCacheConfiguration());
        factory.getRegistryInjector().inject(registry);
        factory.getLockManagerInjector().inject(((ExtendedCacheManager) cacheContainer).getLockManager());
        
        Engine engine = new MockEngine();
        engine.setName("jboss.web");
        engine.setJvmRoute(jvmRoute);
        Host host = new MockHost();
        host.setName("localhost");
        engine.addChild(host);
        StandardContext context = new StandardContext();
        context.setName(warName);
        context.setDomain(jvmRoute);
        host.addChild(context);

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        return this.passivate;
    }


    @Override
    public String getEngineName() {
        Engine engine = this.getEngine();
        return (engine != null) ? engine.getName() : null;
    }

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    */
   public String getJvmRoute()
   {
      if (jvmRoute_ == null)
      {
         Engine e = getEngine();
         jvmRoute_= (e == null ? null : e.getJvmRoute());
      }
      return jvmRoute_;
   }

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