Package org.apache.cassandra.io

Examples of org.apache.cassandra.io.DataInputBuffer

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        }

        public void doVerb(Message message)
        {
            byte[] bytes = message.getMessageBody();
            DataInputBuffer buffer = new DataInputBuffer();
            buffer.reset(bytes, bytes.length);

            try
            {
                // deserialize the remote tree, and register it
                Validator rvalidator = this.deserialize(buffer);
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    private static Logger logger_ = Logger.getLogger(BinaryVerbHandler.class);

    public void doVerb(Message message)
    {
        byte[] bytes = message.getMessageBody();
        DataInputBuffer buffer = new DataInputBuffer();
        buffer.reset(bytes, bytes.length);

      try
      {
            RowMutationMessage rmMsg = RowMutationMessage.serializer().deserialize(buffer);
            RowMutation rm = rmMsg.getRowMutation();                             
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               '}';
    }

    public static RangeSliceReply read(byte[] body) throws IOException
    {
        DataInputBuffer bufIn = new DataInputBuffer();
        bufIn.reset(body, body.length);
        boolean completed = bufIn.readBoolean();
        int rowCount = bufIn.readInt();
        List<Row> rows = new ArrayList<Row>(rowCount);
        for (int i = 0; i < rowCount; i++)
        {
            rows.add(Row.serializer().deserialize(bufIn));
        }
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                handleDigestResponses();
        }
   
    private void handleDigestResponses()
    {
            DataInputBuffer bufIn = new DataInputBuffer();
            for (Message response : responses_)
            {
                try
                {
                    byte[] body = response.getMessageBody();
                    bufIn.reset(body, body.length);
                    ReadResponse result = ReadResponse.serializer().deserialize(bufIn);
                    byte[] digest = result.digest();
                    if (!Arrays.equals(ColumnFamily.digest(row_.cf), digest))
                    {
                        doReadRepair();
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            }
            catch (TimeoutException e)
            {
                throw new TimedOutException();
            }
            DataInputBuffer bufIn = new DataInputBuffer();
            bufIn.reset(body, body.length);
            ReadResponse response = ReadResponse.serializer().deserialize(bufIn);
            if (response.row() != null)
                rows.add(response.row());
        }
        return rows;
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    }

    public static RangeCommand read(Message message) throws IOException
    {
        byte[] bytes = message.getMessageBody();
        DataInputBuffer dib = new DataInputBuffer();
        dib.reset(bytes, bytes.length);
        return serializer.deserialize(new DataInputStream(dib));
    }
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               ')';
    }

    public static RangeReply read(byte[] body) throws IOException
    {
        DataInputBuffer bufIn = new DataInputBuffer();
        boolean rangeCompletedLocally;       
        bufIn.reset(body, body.length);
        rangeCompletedLocally = bufIn.readBoolean();

        List<String> keys = new ArrayList<String>();
        while (bufIn.getPosition() < body.length)
        {
            keys.add(bufIn.readUTF());
        }
       
        return new RangeReply(keys, rangeCompletedLocally);
    }
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    private static Logger logger_ = Logger.getLogger(RowMutationVerbHandler.class);

    public void doVerb(Message message)
    {
        byte[] bytes = message.getMessageBody();
        DataInputBuffer buffer = new DataInputBuffer();
        buffer.reset(bytes, bytes.length);

        try
        {
            RowMutation rm = RowMutation.serializer().deserialize(buffer);
            if (logger_.isDebugEnabled())
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    {
        Set<Table> tablesRecovered = new HashSet<Table>();
        assert StageManager.getStage(StageManager.mutationStage_).getCompletedTasks() == 0;
        int rows = 0;

        DataInputBuffer bufIn = new DataInputBuffer();
        for (File file : clogs)
        {
            int bufferSize = (int)Math.min(file.length(), 32 * 1024 * 1024);
            BufferedRandomAccessFile reader = new BufferedRandomAccessFile(file.getAbsolutePath(), "r", bufferSize);
            final CommitLogHeader clHeader = readCommitLogHeader(reader);
            /* seek to the lowest position where any CF has non-flushed data */
            int lowPos = CommitLogHeader.getLowestPosition(clHeader);
            if (lowPos == 0)
                break;

            reader.seek(lowPos);
            if (logger_.isDebugEnabled())
                logger_.debug("Replaying " + file + " starting at " + lowPos);

            /* read the logs populate RowMutation and apply */
            while (!reader.isEOF())
            {
                if (logger_.isDebugEnabled())
                    logger_.debug("Reading mutation at " + reader.getFilePointer());

                long claimedCRC32;
                byte[] bytes;
                try
                {
                    bytes = new byte[(int) reader.readLong()]; // readlong can throw EOFException too
                    reader.readFully(bytes);
                    claimedCRC32 = reader.readLong();
                }
                catch (EOFException e)
                {
                    // last CL entry didn't get completely written.  that's ok.
                    break;
                }
                bufIn.reset(bytes, bytes.length);
                Checksum checksum = new CRC32();
                checksum.update(bytes, 0, bytes.length);
                if (claimedCRC32 != checksum.getValue())
                {
                    // this part of the log must not have been fsynced.  probably the rest is bad too,
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    private ReadCommand serializeAndDeserializeReadMessage(ReadCommand rm) throws IOException
    {
        ReadCommandSerializer rms = ReadCommand.serializer();
        DataOutputBuffer dos = new DataOutputBuffer();
        DataInputBuffer dis = new DataInputBuffer();

        rms.serialize(rm, dos);
        dis.reset(dos.getData(), dos.getLength());
        return rms.deserialize(dis);
    }
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Related Classes of org.apache.cassandra.io.DataInputBuffer

  • org.apache.cassandra.db.BinaryVerbHandler
  • org.apache.cassandra.db.CalloutDeployVerbHandler
  • org.apache.cassandra.db.ColumnFamilyStore
  • org.apache.cassandra.db.ColumnFamilyStoreTest
  • org.apache.cassandra.db.ColumnFamilyTest
  • org.apache.cassandra.db.CommitLog
  • org.apache.cassandra.db.CommitLogHeader
  • org.apache.cassandra.db.FileStruct
  • org.apache.cassandra.db.LoadVerbHandler
  • org.apache.cassandra.db.RangeCommand
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