Examples of org.hornetq.core.paging.PagedMessage

org.hornetq.core.paging.PagedMessage
A Paged message We can't just record the ServerMessage as we need other information (such as the TransactionID used during paging) @author Clebert Suconic

         {
            return null;
         }
      }


      PagedMessage serverMessage = cache.getMessage(retPos.getMessageNr());


      if (serverMessage != null)
      {
         return cursorProvider.newReference(retPos, serverMessage, this);
      }

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         {
            return null;
         }
      }


      PagedMessage serverMessage = cache.getMessage(retPos.getMessageNr());


      if (serverMessage != null)
      {
         return cursorProvider.newReference(retPos, serverMessage, this);
      }

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         if (!paging)
         {
            return false;
         }


         PagedMessage pagedMessage;


         if (!message.isDurable())
         {
            // The address should never be transient when paging (even for non-persistent messages when paging)
            // This will force everything to be persisted
            message.bodyChanged();
         }


         pagedMessage = new PagedMessageImpl(message, routeQueues(tx, listCtx), installPageTransaction(tx, listCtx));


         int bytesToWrite = pagedMessage.getEncodeSize() + PageImpl.SIZE_RECORD;


         if (currentPageSize.addAndGet(bytesToWrite) > pageSize && currentPage.getNumberOfMessages() > 0)
         {
            // Make sure nothing is currently validating or using currentPage
            openNewPage();

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            // This will force everything to be persisted
            message.bodyChanged();
         }




         PagedMessage pagedMessage = new PagedMessageImpl(message, routeQueues(tx, listCtx), tx == null ? -1 : tx.getID());
         
         if (message.isLargeMessage())
         {
            ((LargeServerMessage)message).setPaged();
         }


         int bytesToWrite = pagedMessage.getEncodeSize() + PageImpl.SIZE_RECORD;


         if (currentPageSize.addAndGet(bytesToWrite) > pageSize && currentPage.getNumberOfMessages() > 0)
         {
            // Make sure nothing is currently validating or using currentPage
            openNewPage();

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            {
               int messageSize = fileBuffer.readInt();
               int oldPos = fileBuffer.readerIndex();
               if (fileBuffer.readerIndex() + messageSize < fileBuffer.capacity() && fileBuffer.getByte(oldPos + messageSize) == PageImpl.END_BYTE)
               {
                  PagedMessage msg = new PagedMessageImpl();
                  msg.decode(fileBuffer);
                  byte b = fileBuffer.readByte();
                  if (b != PageImpl.END_BYTE)
                  {
                     // Sanity Check: This would only happen if there is a bug on decode or any internal code, as this
                     // constraint was already checked
                     throw new IllegalStateException("Internal error, it wasn't possible to locate END_BYTE " + b);
                  }
                  msg.initMessage(storage);
                  if (isTrace)
                  {
                     log.trace("Reading message " + msg + " on pageId=" + this.pageId + " for address=" + storeName);
                  }
                  messages.add(msg);

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      return getPagedMessage().getMessage();
   }


   public synchronized PagedMessage getPagedMessage()
   {
      PagedMessage returnMessage = message != null ? message.get() : null;


      // We only keep a few references on the Queue from paging...
      // Besides those references are SoftReferenced on page cache...
      // So, this will unlikely be null,
      // unless the Queue has stalled for some time after paging

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      cursor.bookmark(startingPos);


      // We can't proceed until the operation has finished
      server.getStorageManager().waitOnOperations();
      
      PagedMessage msg = cache.getMessage(startingPos.getMessageNr() + 1);
      msg.initMessage(server.getStorageManager());
      int initialKey = msg.getMessage().getIntProperty("key").intValue();
      int key = initialKey;


      msg = null;


      cache = null;

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   /**
    * @param packet
    */
   private void handlePageWrite(final ReplicationPageWriteMessage packet) throws Exception
   {
      PagedMessage pgdMessage = packet.getPagedMessage();
      pgdMessage.initMessage(storageManager);
      ServerMessage msg = pgdMessage.getMessage();
      Page page = getPage(msg.getAddress(), packet.getPageNumber());
      page.write(pgdMessage);
   }

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               // This will force everything to be persisted
               message.forceAddress(address);
            }


            final long transactionID = tx == null ? -1 : tx.getID();
            PagedMessage pagedMessage = new PagedMessageImpl(message, routeQueues(tx, listCtx), transactionID);


            if (message.isLargeMessage())
            {
               ((LargeServerMessage) message).setPaged();
            }


            int bytesToWrite = pagedMessage.getEncodeSize() + Page.SIZE_RECORD;


            if (currentPageSize.addAndGet(bytesToWrite) > pageSize && currentPage.getNumberOfMessages() > 0)
            {
               // Make sure nothing is currently validating or using currentPage
               openNewPage();

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      {
         return null;
      }
      else
      {
         PagedMessage serverMessage = cache.getMessage(retPos.getMessageNr());


         if (serverMessage != null)
         {
            return cursorProvider.newReference(retPos, serverMessage, this);
         }

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Related Classes of org.hornetq.core.paging.PagedMessage

org.hornetq.core.paging.cursor.impl.PageSubscriptionImpl

org.hornetq.core.paging.cursor.PagedReferenceImpl

org.hornetq.core.paging.impl.Page

org.hornetq.core.paging.impl.PageImpl

org.hornetq.core.paging.impl.PagingStoreImpl

org.hornetq.core.replication.impl.ReplicationEndpointImpl

org.hornetq.core.replication.ReplicationEndpoint

org.hornetq.tests.integration.replication.ReplicationTest

org.hornetq.tests.stress.paging.PageCursorStressTest

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