Examples of org.springframework.context.support.ClassPathXmlApplicationContext

Package org.springframework.context.support

Examples of org.springframework.context.support.ClassPathXmlApplicationContext

org.springframework.context.support.ClassPathXmlApplicationContext
Standalone XML application context, taking the context definition files from the class path, interpreting plain paths as class path resource names that include the package path (e.g. "mypackage/myresource.txt"). Useful for test harnesses as well as for application contexts embedded within JARs.
The config location defaults can be overridden via {@link #getConfigLocations}, Config locations can either denote concrete files like "/myfiles/context.xml" or Ant-style patterns like "/myfiles/*-context.xml" (see the {@link org.springframework.util.AntPathMatcher} javadoc for pattern details).
Note: In case of multiple config locations, later bean definitions will override ones defined in earlier loaded files. This can be leveraged to deliberately override certain bean definitions via an extra XML file.
This is a simple, one-stop shop convenience ApplicationContext. Consider using the {@link GenericApplicationContext} class in combinationwith an {@link org.springframework.beans.factory.xml.XmlBeanDefinitionReader}for more flexible context setup. @author Rod Johnson @author Juergen Hoeller @see #getResource @see #getResourceByPath @see GenericApplicationContext


   @Test
   public void testAdaptorThrowsRuntimeOnSetDispatcher() throws Throwable
   {
      TestAdaptor.throwExceptionOnSetDispatcher = true;
      ClassPathXmlApplicationContext actx = null;
      boolean gotException = false;
      
      try
      {
         actx = new ClassPathXmlApplicationContext(
               "testDempsy/Dempsy.xml",
               "testDempsy/Transport-PassthroughActx.xml",
               "testDempsy/ClusterInfo-LocalActx.xml",
               "testDempsy/Serializer-KryoActx.xml",
               "testDempsy/SimpleMultistageApplicationActx.xml"
               );
         actx.registerShutdownHook();
      }
      catch (Throwable th)
      {
         assertEquals("Forced RuntimeException",th.getCause().getLocalizedMessage());
         gotException = true;
      }
      finally
      {
         TestAdaptor.throwExceptionOnSetDispatcher = false;
         if (actx != null)
         {
            actx.stop();
            actx.destroy();
         }
         
      }
      
      assertTrue(gotException);

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   }
   
   @Test
   public void testStartStop() throws Throwable
   {
      ClassPathXmlApplicationContext actx = null;
      Dempsy dempsy = null;


      try
      {   
         logger.debug("Starting up the appliction context ...");
         actx = new ClassPathXmlApplicationContext(ctx);
         actx.registerShutdownHook();


         dempsy = (Dempsy)actx.getBean("dempsy");
         dempsy.start();


         final FullApplication app = (FullApplication)actx.getBean("app");


         // this checks that the throughput works.
         assertTrue(poll(baseTimeoutMillis * 5, app, new Condition<Object>()
         {
            @Override
            public boolean conditionMet(Object o)
            {
               return app.finalMessageCount.get() > 100;
            }
         }));
      }
      finally
      {
         if (dempsy != null)
            dempsy.stop();


         if (actx != null)
            actx.close();


         if (dempsy != null)
            assertTrue(dempsy.waitToBeStopped(baseTimeoutMillis));
      }
   }

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   private ZookeeperSession zookeeperCluster = null;
   
   @Test
   public void testStartForceMpDisconnectStop() throws Throwable
   {
      ClassPathXmlApplicationContext actx = null;
      Dempsy dempsy = null;


      try
      {   
         logger.debug("Starting up the appliction context ...");
         actx = new ClassPathXmlApplicationContext(ctx);
         actx.registerShutdownHook();


         final FullApplication app = (FullApplication)actx.getBean("app");


         dempsy = (Dempsy)actx.getBean("dempsy");


         // Override the cluster session factory to keep track of the sessions asked for.
         // This is so that I can grab the ZookeeperSession that's being instantiated by
         // the MyMp cluster.
         zookeeperCluster = null;
         dempsy.setClusterSessionFactory(
               new ZookeeperSessionFactory(System.getProperty("zk_connect"), 5000)
               {
                  int sessionCount = 0;


                  @Override
                  public synchronized ClusterInfoSession createSession() throws ClusterInfoException
                  {
                     sessionCount++;
                     ClusterInfoSession ret = super.createSession();


                     if (sessionCount == 2)
                        zookeeperCluster = (ZookeeperSession)ret;
                     return ret;
                  }
               });


         dempsy.start();


         Dempsy.Application.Cluster cluster = dempsy.getCluster(new ClusterId(FullApplication.class.getSimpleName(),MyAdaptor.class.getSimpleName()));
         Dempsy.Application.Cluster.Node node = cluster.getNodes().get(0);
         final StatsCollector collector = node.getStatsCollector();


         // this checks that the throughput works.
         assertTrue(poll(baseTimeoutMillis * 5, app, new Condition<Object>()
         {
            @Override
            public boolean conditionMet(Object o)
            {
               return app.finalMessageCount.get() > 10;
            }
         }));


         assertNotNull(zookeeperCluster);


         assertEquals(0,((MetricGetters)collector).getDiscardedMessageCount());
         assertEquals(0,((MetricGetters)collector).getMessageFailedCount());


         // ok ... so now we have stuff going all the way through. let's kick
         // the middle Mp's zookeeper cluster and see what happens.
         ZooKeeper origZk = zookeeperCluster.zkref.get();
         long sessionid = origZk.getSessionId();
         ZooKeeper killer = new ZooKeeper(System.getProperty("zk_connect"),5000, new Watcher() { @Override public void process(WatchedEvent arg0) { } }, sessionid, null);
         killer.close(); // tricks the server into expiring the other session


//         // we should be getting failures now ... 
//         // but it's possible that it can reconnect prior to actually seeing an error so if this 
//         //   fails frequently we need to remove this test.
//         assertTrue(poll(baseTimeoutMillis, app, new Condition()
//         {
//            @Override
//            public boolean conditionMet(Object o)
//            {
//               return collector.getMessageFailedCount() > 1;
//            }
//         }));


         //... and then recover.


         // get the MyMp prototype
         cluster = dempsy.getCluster(new ClusterId(FullApplication.class.getSimpleName(),MyMp.class.getSimpleName()));
         node = cluster.getNodes().get(0);
         final MyMp prototype = (MyMp)node.getMpContainer().getPrototype();


         // so let's see where we are
         final long interimMessageCount = prototype.myMpReceived.get();


         // and now we should eventually get more as the session recovers.
         assertTrue(poll(baseTimeoutMillis * 5, app, new Condition<Object>()
         {
            @Override
            public boolean conditionMet(Object o)
            {
               return prototype.myMpReceived.get() > interimMessageCount + 100;
            }
         }));
      }
      finally
      {
         if (dempsy != null)
            dempsy.stop();
         
         if (actx != null)
            actx.close();


         if (dempsy != null)
            assertTrue(dempsy.waitToBeStopped(baseTimeoutMillis));
      }
   }

View Full Code Here

   }


   @Test
   public void testStartForceMpDisconnectWithStandby() throws Throwable
   {
      ClassPathXmlApplicationContext actx = null;
      Dempsy dempsy = null;
      
      try
      {
         logger.debug("Starting up the appliction context ...");
         actx = new ClassPathXmlApplicationContext(ctx);
         actx.registerShutdownHook();


         final FullApplication app = (FullApplication)actx.getBean("app");


         dempsy = (Dempsy)actx.getBean("dempsy");


         // Override the cluster session factory to keep track of the sessions asked for.
         // This is so that I can grab the ZookeeperSession that's being instantiated by
         // the MyMp cluster.
         zookeeperCluster = null;
         dempsy.setClusterSessionFactory(
               new ZookeeperSessionFactory(System.getProperty("zk_connect"), 5000)
               {
                  int sessionCount = 0;


                  @Override
                  public synchronized ClusterInfoSession createSession() throws ClusterInfoException
                  {
                     sessionCount++;
                     ClusterInfoSession ret = super.createSession();


                     if (sessionCount == 2)
                        zookeeperCluster = (ZookeeperSession)ret;
                     return ret;
                  }
               });


         dempsy.start();


         Dempsy.Application.Cluster cluster = dempsy.getCluster(new ClusterId(FullApplication.class.getSimpleName(),MyAdaptor.class.getSimpleName()));
         Dempsy.Application.Cluster.Node node = cluster.getNodes().get(0);
         final StatsCollector collector = node.getStatsCollector();
         
         // we are going to create another node of the MyMp via a test hack
         cluster = dempsy.getCluster(new ClusterId(FullApplication.class.getSimpleName(),MyMp.class.getSimpleName()));
         Dempsy.Application.Cluster.Node mpnode = cluster.getNodes().get(0);
         // this actually hoses the output schedule. It moves it to the new node due
         //  to a second call to setOutputInvoker.
         cluster.instantiateAndStartAnotherNodeForTesting(); // the code for start instantiates a new node


         assertNotNull(zookeeperCluster);


         assertEquals(0,((MetricGetters)collector).getDiscardedMessageCount());
         assertEquals(0,((MetricGetters)collector).getMessageFailedCount());


         // ok ... so now we have stuff going all the way through. let's kick
         // the middle Mp's zookeeper cluster and see what happens.
         ZooKeeper origZk = zookeeperCluster.zkref.get();
         origZk.close(); // this should kill it.
         
         // but just to be sure actually stop the node.
         mpnode.stop();


         // we should be getting failures now ... and then recover.


         // get the MyMp prototype
         cluster = dempsy.getCluster(new ClusterId(FullApplication.class.getSimpleName(),MyMp.class.getSimpleName()));
         node = cluster.getNodes().get(1); // notice, we're getting the SECOND node.
         final MyMp prototype = (MyMp)node.getMpContainer().getPrototype();


         // so let's see where we are
         final long interimMessageCount = prototype.myMpReceived.get();


         // and now we should eventually get more as the session recovers.
         assertTrue(poll(baseTimeoutMillis * 5, app, new Condition<Object>()
         {
            @Override
            public boolean conditionMet(Object o)
            {
               return prototype.myMpReceived.get() > interimMessageCount + 100;
            }
         }));


      }
      finally
      {
         if (dempsy != null)
            dempsy.stop();
         
         if (actx != null)
            actx.close();


         if (dempsy != null)
            assertTrue(dempsy.waitToBeStopped(baseTimeoutMillis));
      }

View Full Code Here

            ClusterDefinition cluster = clusters.get(i);
            CheckCluster.toCheckAgainst = cluster.getClusterId();


            DempsyHolder cur = new DempsyHolder();
            cur.clusterid = cluster.getClusterId();
            cur.actx = new ClassPathXmlApplicationContext(ctx);
            cur.actx.registerShutdownHook();
            cur.dempsy =  (Dempsy)cur.actx.getBean("dempsy");
            cur.dempsy.start();
            dempsys.put(cluster.getClusterId(), cur);
         }


         // get the last FullApplication in the processing chain.
         ClassPathXmlApplicationContext actx = dempsys.get(new ClusterId(FullApplication.class.getSimpleName(),MyRankMp.class.getSimpleName())).actx;
         final FullApplication app = (FullApplication)actx.getBean("app");


         // this checks that the throughput works.
         assertTrue(poll(baseTimeoutMillis * 5, app, new Condition<Object>()
         {
            @Override

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            ClusterDefinition cluster = clusters.get(i);
            CheckCluster.toCheckAgainst = cluster.getClusterId();


            DempsyHolder cur = new DempsyHolder();
            cur.clusterid = cluster.getClusterId();
            cur.actx = new ClassPathXmlApplicationContext(ctx);
            cur.actx.registerShutdownHook();
            cur.dempsy =  (Dempsy)cur.actx.getBean("dempsy");
            cur.dempsy.start();
            dempsys.put(cluster.getClusterId(), cur);
         }
         
         // get the last FullApplication in the processing chain.
         ClassPathXmlApplicationContext actx = dempsys.get(new ClusterId(FullApplication.class.getSimpleName(),MyRankMp.class.getSimpleName())).actx;
         final FullApplication app = (FullApplication)actx.getBean("app");


         // this checks that the throughput works.
         assertTrue(poll(baseTimeoutMillis * 5, app, new Condition<Object>()
         {
            @Override
            public boolean conditionMet(Object o)
            {
               return app.finalMessageCount.get() > 100;
            }
         }));
         
         // now start another MyMp cluster.
         spare = new DempsyHolder();
         spare.clusterid = new ClusterId(FullApplication.class.getSimpleName(),MyMp.class.getSimpleName());
         CheckCluster.toCheckAgainst = spare.clusterid;
         spare.actx = new ClassPathXmlApplicationContext(ctx);
         spare.dempsy = (Dempsy)spare.actx.getBean("dempsy");
         spare.dempsy.start();


         Dempsy.Application.Cluster cluster = spare.dempsy.getCluster(spare.clusterid);
         Dempsy.Application.Cluster.Node node = cluster.getNodes().get(0);

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   @Test
   public void testChangingClusterInfo() throws Throwable
   {
      // check that the message didn't go through.
      ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
            "testDempsy/Dempsy.xml", "testDempsy/ClusterInfo-LocalActx.xml", "testDempsy/Serializer-KryoActx.xml",
            "testDempsy/Transport-PassthroughActx.xml", "testDempsy/SimpleMultistageApplicationActx.xml" );
      Dempsy dempsy = (Dempsy)context.getBean("dempsy");
      ClusterInfoSessionFactory factory = dempsy.getClusterSessionFactory();
      ClusterInfoSession session = factory.createSession();
      ClusterId curCluster = new ClusterId("test-app", "test-cluster1");
      TestUtils.createClusterLevel(curCluster, session);
      session.setData(curCluster.asPath(), new DecentralizedRoutingStrategy.DefaultRouterClusterInfo(20,2));

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      if (minNodes == null || minNodes.length() == 0)
         System.setProperty(min_num_nodes_per_clusterParam, min_num_nodes_per_clusterDefault);
      //======================================================
      
      String contextFile = "classpath:Dempsy-distributed.xml";
      ClassPathXmlApplicationContext context = null;
      try
      {
         // Initialize Spring
         context = new ClassPathXmlApplicationContext(new String[] {appCtxFilename, contextFile});
         context.registerShutdownHook();
      }
      catch(Throwable e)
      {
         logger.error(MarkerFactory.getMarker("FATAL"), "Failed to start the application ", e);
         throw e;
      }
      if(context != null)
      {
         try
         {
            context.getBean(Dempsy.class).waitToBeStopped();
         }
         catch(InterruptedException e)
         {
            logger.error("Interrupted . . . ", e);
         }
         finally
         {
            context.stop();
         }
         
         logger.info("Shut down dempsy appliction "+appCtxFilename+"-"+application + ", bye!");
      }
   }

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      String contextFile = "classpath:Dempsy-localVm.xml";
      context = null;
      try
      {
         // Initialize Spring
         context = new ClassPathXmlApplicationContext(new String[] {appCtxFilename, contextFile});
         context.registerShutdownHook();
      }
      catch(Throwable e)
      {
         logger.error(MarkerFactory.getMarker("FATAL"), "Failed to start the application ", e);

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   }
   
   @Test
   public void testSpringConfig() throws Throwable
   {
         ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("RouterConfigTest.xml");
         ctx.registerShutdownHook();
   }

View Full Code Here

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