Examples of org.hornetq.core.paging.PagingStore

org.hornetq.core.paging.PagingStore

The implementation will take care of details such as PageSize.

The producers will write directly to PagingStore and that will decide what Page file should be used based on configured size
@see PagingManager @author Clebert Suconic

         QueueBindingInfo queueInfo = queueInfos.get(queueID);


         if (queueInfo != null)
         {
            SimpleString address = queueInfo.getAddress();
            PagingStore store = pagingManager.getPageStore(address);
            subs = store.getCursorProvier().getSubscription(queueID);
            pageSubscriptions.put(queueID, subs);
         }
      }


      return subs;

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            SequentialFileFactory factory = newFileFactory(guid);


            AddressSettings settings = addressSettingsRepository.getMatch(address.toString());


            PagingStore store = new PagingStoreImpl(address,
                                                    scheduledExecutor,
                                                    syncTimeout,
                                                    pagingManager,
                                                    storageManager,
                                                    factory,

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         SimpleString[] stores = manager.getStoreNames();


         for (SimpleString store : stores)
         {
            PagingStore pageStore = manager.getPageStore(store);


            if (pageStore != null)
            {
               String folder = pageStore.getFolder();
               HornetQServerLogger.LOGGER.debug("Reading page store " + store + " folder = " + folder);


               int pageId = (int) pageStore.getFirstPage();
               for (int i = 0; i < pageStore.getNumberOfPages(); i++)
               {
                  HornetQServerLogger.LOGGER.debug("Reading page " + pageId);
                  Page page = pageStore.createPage(pageId);
                  page.open();
                  List<PagedMessage> messages = page.read(storageManager);
                  page.close();


                  int messageId = 0;

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      }
   }


   public void requestProducerCredits(final SimpleString address, final int credits) throws Exception
   {
      PagingStore store = postOffice.getPagingManager().getPageStore(address);


      store.executeRunnableWhenMemoryAvailable(new Runnable()
      {
         public void run()
         {
            callback.sendProducerCreditsMessage(credits, address);
         }

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         PagingManager pagingManager = createPageManager(server.getStorageManager(),
                                                         server.getConfiguration(),
                                                         server.getExecutorFactory(),
                                                         server.getAddressSettingsRepository());


         PagingStore store = pagingManager.getPageStore(dummy);
         store.start();
         Assert.assertEquals(4, store.getNumberOfPages());
         store.stop();


         manager.pageDeleted(dummy, 1);
         manager.pageDeleted(dummy, 2);
         manager.pageDeleted(dummy, 3);
         manager.pageDeleted(dummy, 4);
         manager.pageDeleted(dummy, 5);
         manager.pageDeleted(dummy, 6);


         blockOnReplication(storage, manager);


         ServerMessageImpl serverMsg = new ServerMessageImpl();
         serverMsg.setMessageID(500);
         serverMsg.setAddress(new SimpleString("tttt"));


         HornetQBuffer buffer = HornetQBuffers.dynamicBuffer(100);
         serverMsg.encodeHeadersAndProperties(buffer);


         manager.largeMessageBegin(500);


         manager.largeMessageWrite(500, new byte[1024]);


         manager.largeMessageDelete(500);


         blockOnReplication(storage, manager);


         store.start();


         Assert.assertEquals(0, store.getNumberOfPages());


         manager.stop();
      }
      finally
      {

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      MessageProducer prod = sess.createProducer(topic);
      prod.setDeliveryMode(DeliveryMode.PERSISTENT);
      TextMessage txt = sess.createTextMessage("TST");
      prod.send(txt);
      
      PagingStore store = server.getPagingManager().getPageStore(new SimpleString("jms.topic.TT"));


      assertEquals(1024 * 1024, store.getMaxSize());
      assertEquals(10 * 1024, store.getPageSizeBytes());


      jmsServer.stop();


      server = createServer(true, config, PAGE_SIZE, -1, new HashMap<String, AddressSettings>());

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      for (int i = 0 ; i < 500; i++)
      {
         prod.send(bmt);
      }
      
      PagingStore store = server.getPagingManager().getPageStore(new SimpleString("jms.queue.Q1"));


      assertEquals(100 * 1024, store.getMaxSize());
      assertEquals(10 * 1024, store.getPageSizeBytes());
      assertEquals(AddressFullMessagePolicy.PAGE, store.getAddressFullMessagePolicy());


      jmsServer.stop();


      server = createServer(true, config, -1, -1, AddressFullMessagePolicy.BLOCK, new HashMap<String, AddressSettings>());


      jmsServer = new JMSServerManagerImpl(server);
      context = new InVMContext();
      jmsServer.setContext(context);
      jmsServer.start();


      AddressSettings settings = server.getAddressSettingsRepository().getMatch("jms.queue.Q1");


      assertEquals(100 * 1024, settings.getMaxSizeBytes());
      assertEquals(10 * 1024, settings.getPageSizeBytes());
      assertEquals(AddressFullMessagePolicy.PAGE, settings.getAddressFullMessagePolicy());


      store = server.getPagingManager().getPageStore(new SimpleString("jms.queue.Q1"));
      assertEquals(100 * 1024, store.getMaxSize());
      assertEquals(10 * 1024, store.getPageSizeBytes());
      assertEquals(AddressFullMessagePolicy.PAGE, store.getAddressFullMessagePolicy());




      server.stop();
      
      jmsServer.stop();

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         QueueBindingInfo queueInfo = queueInfos.get(queueID);


         if (queueInfo != null)
         {
            SimpleString address = queueInfo.getAddress();
            PagingStore store = pagingManager.getPageStore(address);
            subs = store.getCursorProvier().getSubscription(queueID);
            pageSubscriptions.put(queueID, subs);
         }
      }


      return subs;

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      }
   }


   public void requestProducerCredits(final SimpleString address, final int credits) throws Exception
   {
      PagingStore store = postOffice.getPagingManager().getPageStore(address);


      store.executeRunnableWhenMemoryAvailable(new Runnable()
      {
         public void run()
         {
            callback.sendProducerCreditsMessage(credits, address);
         }

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   }




   private void setPagingStore(final ServerMessage message) throws Exception
   {
      PagingStore store = pagingManager.getPageStore(message.getAddress());


      message.setPagingStore(store);
   }

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org.hornetq.core.paging.impl.PagingManagerImpl

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org.hornetq.core.persistence.impl.journal.XmlDataExporter

org.hornetq.core.postoffice.impl.PostOfficeImpl

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org.hornetq.core.server.impl.PostOfficeJournalLoader

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