Examples of org.hornetq.core.journal.SequentialFile

org.hornetq.core.journal.SequentialFile
A SequentialFile @author Tim Fox @author Clebert Suconic


         List<JournalFile> newDatafiles = null;


         JournalCompactor localCompactor = compactor;


         SequentialFile controlFile = createControlFile(dataFilesToProcess, compactor.getNewDataFiles(), null);


         compactingLock.writeLock().lock();
         try
         {
            // Need to clear the compactor here, or the replay commands will send commands back (infinite loop)

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   {
      ArrayList<String> dataFiles = new ArrayList<String>();
      ArrayList<String> newFiles = new ArrayList<String>();
      ArrayList<Pair<String, String>> renames = new ArrayList<Pair<String, String>>();


      SequentialFile controlFile = JournalCompactor.readControlFile(fileFactory, dataFiles, newFiles, renames);
      if (controlFile != null)
      {
         for (String dataFile : dataFiles)
         {
            SequentialFile file = fileFactory.createSequentialFile(dataFile, 1);
            if (file.exists())
            {
               file.delete();
            }
         }


         for (String newFile : newFiles)
         {
            SequentialFile file = fileFactory.createSequentialFile(newFile, 1);
            if (file.exists())
            {
               final String originalName = file.getFileName();
               final String newName = originalName.substring(0, originalName.lastIndexOf(".cmp"));
               file.renameTo(newName);
            }
         }


         for (Pair<String, String> rename : renames)
         {
            SequentialFile fileTmp = fileFactory.createSequentialFile(rename.a, 1);
            SequentialFile fileTo = fileFactory.createSequentialFile(rename.b, 1);
            // We should do the rename only if the tmp file still exist, or else we could
            // delete a valid file depending on where the crash occured during the control file delete
            if (fileTmp.exists())
            {
               fileTo.delete();
               fileTmp.renameTo(rename.b);
            }
         }


         controlFile.delete();

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         JournalImpl.log.warn("Temporary files were left unnatended after a crash on journal directory, deleting invalid files now");


         for (String fileToDelete : leftFiles)
         {
            JournalImpl.log.warn("Deleting unnatended file " + fileToDelete);
            SequentialFile file = fileFactory.createSequentialFile(fileToDelete, 1);
            file.delete();
         }
      }
   }

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    */
   private synchronized void handleReplicationSynchronization(ReplicationSyncFileMessage msg) throws Exception
   {
      Long id = Long.valueOf(msg.getId());
      byte[] data = msg.getData();
      SequentialFile channel1;
      switch (msg.getFileType())
      {
         case LARGE_MESSAGE:
         {
            ReplicatedLargeMessage largeMessage = lookupLargeMessage(id, false);
            if (!(largeMessage instanceof LargeServerMessageInSync))
            {
               HornetQServerLogger.LOGGER.largeMessageIncompatible();
               return;
            }
            LargeServerMessageInSync largeMessageInSync=(LargeServerMessageInSync)largeMessage;
            channel1 = largeMessageInSync.getSyncFile();
            break;
         }
         case PAGE:
         {
            Page page = getPage(msg.getPageStore(), (int)msg.getId());
            channel1 = page.getFile();
            break;
         }
         case JOURNAL:
         {
            JournalSyncFile journalSyncFile = filesReservedForSync.get(msg.getJournalContent()).get(id);
            FileChannel channel2 = journalSyncFile.getChannel();
            if (data == null)
            {
               channel2.close();
               return;
            }
            channel2.write(ByteBuffer.wrap(data));
            return;
         }
         default:
            throw HornetQMessageBundle.BUNDLE.replicationUnhandledFileType(msg.getFileType());
      }


      if (data == null)
      {
         channel1.close();
         return;
      }


      if (!channel1.isOpen())
      {
         channel1.open(1, false);
      }
      channel1.writeDirect(ByteBuffer.wrap(data), true);
   }

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      private final File file;
      private FileOutputStream fos;


      public JournalSyncFile(JournalFile jFile) throws Exception
      {
         SequentialFile seqFile = jFile.getFile();
         file = seqFile.getJavaFile();
         seqFile.close();
      }

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   }


   public boolean checkPageFileExists(final int pageNumber)
   {
      String fileName = createFileName(pageNumber);
      SequentialFile file = fileFactory.createSequentialFile(fileName, 1);
      return file.exists();
   }

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      if (fileFactory == null)
      {
         fileFactory = storeFactory.newFileFactory(getStoreName());
      }


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


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


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


      file.position(0);


      file.close();


      return page;
   }

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      lock(-1);
      try
      {
         for (Integer id : pageIds)
         {
            SequentialFile sFile = fileFactory.createSequentialFile(createFileName(id), 1);
            if (!sFile.exists())
            {
               continue;
            }
            replicator.syncPages(sFile, id, getAddress());
         }

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   public void testBasicAlignment() throws Exception
   {


      FakeSequentialFileFactory factory = new FakeSequentialFileFactory(200, true);


      SequentialFile file = factory.createSequentialFile("test1", 1);


      file.open();


      try
      {
         ByteBuffer buffer = ByteBuffer.allocateDirect(200);
         for (int i = 0; i < 200; i++)
         {
            buffer.put(i, (byte)1);
         }


         file.writeDirect(buffer, true);


         buffer = ByteBuffer.allocate(400);
         for (int i = 0; i < 400; i++)
         {
            buffer.put(i, (byte)2);
         }


         file.writeDirect(buffer, true);


         buffer = ByteBuffer.allocate(600);


         file.position(0);


         file.read(buffer);


         for (int i = 0; i < 200; i++)
         {
            Assert.assertEquals((byte)1, buffer.get(i));
         }

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      journalImpl.appendCommitRecord(1l, false);


      System.out.println("Files = " + factory.listFiles("tt"));


      SequentialFile file = factory.createSequentialFile("tt-1.tt", 1);


      file.open();


      ByteBuffer buffer = ByteBuffer.allocate(100);


      // Messing up with the first record (removing the position)
      file.position(100);


      file.read(buffer);


      // jumping RecordType, FileId, TransactionID, RecordID, VariableSize,
      // RecordType, RecordBody (that we know it is 1 )
      buffer.position(1 + 4 + 8 + 8 + 4 + 1 + 1);


      int posCheckSize = buffer.position();


      Assert.assertEquals(JournalImpl.SIZE_ADD_RECORD_TX + 1, buffer.getInt());


      buffer.position(posCheckSize);


      buffer.putInt(-1);


      buffer.rewind();


      // Changing the check bufferSize, so reload will ignore this record
      file.position(100);


      file.writeDirect(buffer, true);


      file.close();


      setupAndLoadJournal(JOURNAL_SIZE, 100);


      Assert.assertEquals(0, records.size());

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Related Classes of org.hornetq.core.journal.SequentialFile

org.hornetq.core.journal.impl.AbstractJournalUpdateTask

org.hornetq.core.journal.impl.JournalCompactor

org.hornetq.core.journal.impl.JournalFilesRepository

org.hornetq.core.journal.impl.JournalImpl

org.hornetq.core.journal.impl.SyncSpeedTest

org.hornetq.core.paging.impl.PagingStoreImpl

org.hornetq.core.persistence.impl.journal.JournalStorageManager

org.hornetq.core.persistence.impl.journal.LargeServerMessageImpl

org.hornetq.core.persistence.impl.journal.LargeServerMessageInSync

org.hornetq.core.replication.ReplicationEndpoint

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