Examples of org.hornetq.core.journal.SequentialFile

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


      journalImpl.appendCommitRecord(1l, false);


      journalImpl.appendCommitRecord(2l, false);


      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(20, records.size());

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         journalImpl.appendAddRecordTransactional(1l, i, (byte)0, new SimpleEncoding(1, (byte)15));
      }


      journalImpl.appendCommitRecord(1l, false);


      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);


      buffer.position(1);


      buffer.putInt(-1);


      buffer.rewind();


      // Messing up with the first record (changing the fileID, so Journal
      // reload will think the record came from a different journal usage)
      file.position(100);


      buffer.rewind();
      file.writeDirect(buffer, true);


      file.close();


      setupAndLoadJournal(JOURNAL_SIZE, 100);


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

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      setupAndLoadJournal(JOURNAL_SIZE, 100);
      Assert.assertEquals(0, records.size());
      Assert.assertEquals(1, transactions.size());


      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);


      buffer.position(1);


      buffer.putInt(-1);


      buffer.rewind();


      // Messing up with the first record (changing the fileID, so Journal
      // reload will think the record came from a different journal usage)
      file.position(100);


      file.writeDirect(buffer, true);


      file.close();


      setupAndLoadJournal(JOURNAL_SIZE, 100);


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

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   {
      List<String> files = fileFactory.listFiles(fileExtension);
      
      for (String file : files)
      {
         SequentialFile seqFile = fileFactory.createSequentialFile(file, 1);
         assertEquals(fileSize, seqFile.size());
      }
      
      super.tearDown();
   }

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      List<String> files = fileFactory.listFiles(fileExtension);
      
      for (String fileStr : files)
      {
         
         SequentialFile file = fileFactory.createSequentialFile(fileStr, 1);
         
         ByteBuffer buffer = fileFactory.newBuffer(JournalImpl.SIZE_HEADER);
         
         for (int i = 0 ; i < JournalImpl.SIZE_HEADER; i++)
         {
            buffer.put(Byte.MAX_VALUE);
         }
         
         buffer.rewind();
         
         file.open();
         
         file.position(0);
         
         file.writeDirect(buffer, sync);
         
         file.close();
      }
      
      fileFactory.stop();


      startJournal();

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      List<String> files = fileFactory.listFiles(fileExtension);
      
      long fileID = Integer.MAX_VALUE;
      for (String fileStr : files)
      {
         SequentialFile file = fileFactory.createSequentialFile(fileStr, 1);
         
         file.open();
         
         JournalImpl.initFileHeader(fileFactory, file, journal.getUserVersion(), fileID++);


         file.close();
      }
      
      fileFactory.stop();


      startJournal();

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      }
      else
      {
         if (tmpCompactExtension)
         {
            SequentialFile sequentialFile = nextFile.getFile();
            sequentialFile.renameTo(sequentialFile.getFileName() + ".cmp");
         }


         if (keepOpened)
         {
            openFile(nextFile, multiAIO);

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         JournalFilesRepository.trace("Creating file " + fileName);
      }


      String tmpFileName = fileName + ".tmp";


      SequentialFile sequentialFile = fileFactory.createSequentialFile(tmpFileName, maxAIO);


      sequentialFile.open(1, false);


      if (init)
      {
         sequentialFile.fill(0, fileSize, JournalImpl.FILL_CHARACTER);


         JournalImpl.initFileHeader(fileFactory, sequentialFile, userVersion, fileID);
      }


      long position = sequentialFile.position();


      sequentialFile.close();


      if (JournalFilesRepository.trace)
      {
         JournalFilesRepository.trace("Renaming file " + tmpFileName + " as " + fileName);
      }


      sequentialFile.renameTo(fileName);


      if (keepOpened)
      {
         if (multiAIO)
         {
            sequentialFile.open();
         }
         else
         {
            sequentialFile.open(1, false);
         }
         sequentialFile.position(position);
      }


      return new JournalFileImpl(sequentialFile, fileID, JournalImpl.FORMAT_VERSION);
   }

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   // Discard the old JournalFile and set it with a new ID
   private JournalFile reinitializeFile(final JournalFile file) throws Exception
   {
      long newFileID = generateFileID();


      SequentialFile sf = file.getFile();


      sf.open(1, false);


      int position = JournalImpl.initFileHeader(fileFactory, sf, userVersion, newFileID);


      JournalFile jf = new JournalFileImpl(sf, newFileID, JournalImpl.FORMAT_VERSION);


      sf.position(position);


      sf.close();


      return jf;
   }

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      if (largeMessagesFactory != null)
      {
         List<String> tmpFiles = largeMessagesFactory.listFiles("tmp");
         for (String tmpFile : tmpFiles)
         {
            SequentialFile file = largeMessagesFactory.createSequentialFile(tmpFile, -1);
            file.delete();
         }
      }
   }

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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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