Package org.hornetq.core.paging

Examples of org.hornetq.core.paging.Page

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               long msgsRead = 0;

               while (msgsRead < NUMBER_OF_MESSAGES)
               {
                  Page page = storeImpl.depage();
                  if (page != null)
                  {
                     page.open();
                     List<PagedMessage> messages = page.read();

                     for (PagedMessage pgmsg : messages)
                     {
                        ServerMessage msg = pgmsg.getMessage();

                        assertEquals(msgsRead++, msg.getMessageID());

                        assertEquals(msg.getMessageID(), msg.getLongProperty("count").longValue());
                     }

                     page.close();
                     page.delete();
                  }
                  else
                  {
                     System.out.println("Depaged!!!! numerOfMessages = " + msgsRead + " of " + NUMBER_OF_MESSAGES);
                     Thread.sleep(500);
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      Assert.assertEquals(1, storeImpl.getNumberOfPages());

      storeImpl.sync();

      Page page = storeImpl.depage();

      page.open();

      List<PagedMessage> msg = page.read();

      Assert.assertEquals(numMessages, msg.size());
      Assert.assertEquals(1, storeImpl.getNumberOfPages());

      page = storeImpl.depage();
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         // Reading is done outside of the synchronized block, however
         // the page stays locked until the entire reading is finished
         if (needToRead)
         {
            Page page = null;
            try
            {
               page = pagingStore.createPage((int)pageId);

               storageManager.beforePageRead();
               page.open();

               List<PagedMessage> pgdMessages = page.read(storageManager);
               cache.setMessages(pgdMessages.toArray(new PagedMessage[pgdMessages.size()]));
            }
            finally
            {
               try
               {
                  if (page != null)
                  {
                     page.close();
                  }
               }
               catch (Throwable ignored)
               {
               }
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                           " is leaving page mode as all messages are consumed and acknowledged from the page store");
                  }
                 
                  pagingStore.forceAnotherPage();

                  Page currentPage = pagingStore.getCurrentPage();

                  storeBookmark(cursorList, currentPage);

                  pagingStore.stopPaging();

                  // This has to be called after we stopped paging
                  for (PageSubscription cursor : cursorList)
                  {
                     cursor.scheduleCleanupCheck();
                  }

               }
            }

            for (long i = pagingStore.getFirstPage(); i < minPage; i++)
            {
               Page page = pagingStore.depage();
               if (page == null)
               {
                  break;
               }
               depagedPages.add(page);
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         fileFactory = storeFactory.newFileFactory(getStoreName());
      }

      SequentialFile file = fileFactory.createSequentialFile(fileName, 1000);

      Page page = new PageImpl(storeName, storageManager, fileFactory, file, pageNumber);

      // To create the file
      file.open();

      file.position(0);
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         }
         else
         {
            numberOfPages--;

            final Page returnPage;

            // We are out of old pages, all that is left now is the current page.
            // On that case we need to replace it by a new empty page, and return the current page immediately
            if (currentPageId == firstPageId)
            {
               firstPageId = Integer.MAX_VALUE;

               if (currentPage == null)
               {
                  // sanity check... it shouldn't happen!
                  throw new IllegalStateException("CurrentPage is null");
               }

               returnPage = currentPage;
               returnPage.close();
               currentPage = null;

               // The current page is empty... which means we reached the end of the pages
               if (returnPage.getNumberOfMessages() == 0)
               {
                  stopPaging();
                  returnPage.open();
                  returnPage.delete();

                  // This will trigger this address to exit the page mode,
                  // and this will make HornetQ start using the journal again
                  return null;
               }
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                  log.info("Address " + pagingStore.getAddress() +
                           " is leaving page mode as all messages are consumed and acknowledged from the page store");
                  pagingStore.forceAnotherPage();

                  Page currentPage = pagingStore.getCurrentPage();

                  storePositions(cursorList, currentPage);

                  pagingStore.stopPaging();

                  // This has to be called after we stopped paging
                  for (PageSubscription cursor : cursorList)
                  {
                     cursor.scheduleCleanupCheck();
                  }

               }
            }

            for (long i = pagingStore.getFirstPage(); i < minPage; i++)
            {
               Page page = pagingStore.depage();
               if (page == null)
               {
                  break;
               }
               depagedPages.add(page);
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         // Reading is done outside of the synchronized block, however
         // the page stays locked until the entire reading is finished
         if (needToRead)
         {
            Page page = null;
            try
            {
               page = pagingStore.createPage((int)pageId);

               page.open();

               List<PagedMessage> pgdMessages = page.read();

               for (PagedMessage pdgMessage : pgdMessages)
               {
                  pdgMessage.initMessage(storageManager);
               }
               cache.setMessages(pgdMessages.toArray(new PagedMessage[pgdMessages.size()]));
            }
            finally
            {
               try
               {
                  if (page != null)
                  {
                     page.close();
                  }
               }
               catch (Throwable ignored)
               {
               }
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      store.startPaging();

      Assert.assertTrue(store.page(msg, new RoutingContextImpl(null)));

      Page page = store.depage();

      page.open();

      List<PagedMessage> msgs = page.read(new NullStorageManager());

      page.close();

      Assert.assertEquals(1, msgs.size());

      UnitTestCase.assertEqualsByteArrays(msg.getBodyBuffer().writerIndex(), msg.getBodyBuffer().toByteBuffer().array(), msgs.get(0)
                                                                                          .getMessage()
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    */
   private void handlePageEvent(final ReplicationPageEventMessage packet) throws Exception
   {
      ConcurrentMap<Integer, Page> pages = getPageMap(packet.getStoreName());

      Page page = pages.remove(packet.getPageNumber());

      if (page == null)
      {
         page = getPage(packet.getStoreName(), packet.getPageNumber());
      }

      if (page != null)
      {
         if (packet.isDelete())
         {
            if (deletePages)
            {
               page.delete();
            }
         }
         else
         {
            page.close();
         }
      }

   }
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Related Classes of org.hornetq.core.paging.Page

  • org.hornetq.core.paging.cursor.impl.PageCursorProviderImpl
  • org.hornetq.core.paging.cursor.impl.PageSubscriptionImpl
  • org.hornetq.core.paging.impl.PagingStoreImpl
  • org.hornetq.core.persistence.impl.journal.XmlDataExporter
  • org.hornetq.core.replication.impl.ReplicationEndpointImpl
  • org.hornetq.core.server.impl.HornetQServerImpl
  • org.hornetq.jms.persistence.impl.journal.XmlDataExporter
  • org.hornetq.tests.integration.client.PagingTest
  • org.hornetq.tests.integration.paging.FailingHornetQServer$FailurePagingStoreFactoryNIO$FailingPagingStore
  • org.hornetq.tests.unit.core.paging.impl.PagingManagerImplTest
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