Examples of org.apache.cassandra.io.DataOutputBuffer

org.apache.cassandra.io.DataOutputBuffer
An implementation of the DataOutputStream interface. This class is completely thread unsafe. Author : Avinash Lakshman ( alakshman@facebook.com) & Prashant Malik ( pmalik@facebook.com )

        this.rangeCompletedLocally = rangeCompletedLocally;
    }


    public Message getReply(Message originalMessage) throws IOException
    {
        DataOutputBuffer dob = new DataOutputBuffer();
        dob.writeBoolean(rangeCompletedLocally);


        for (String key : keys)
        {
            dob.writeUTF(key);
        }
        byte[] data = Arrays.copyOf(dob.getData(), dob.getLength());
        return originalMessage.getReply(FBUtilities.getLocalAddress(), data);
    }

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                CommitLogContext cLogCtx = new CommitLogContext(logFile_, currentPosition);
                maybeUpdateHeader(rowMutation);
                Checksum checkum = new CRC32();
                if (serializedRow instanceof DataOutputBuffer)
                {
                    DataOutputBuffer buffer = (DataOutputBuffer) serializedRow;
                    logWriter_.writeLong(buffer.getLength());
                    logWriter_.write(buffer.getData(), 0, buffer.getLength());
                    checkum.update(buffer.getData(), 0, buffer.getLength());
                }
                else
                {
                    assert serializedRow instanceof byte[];
                    byte[] bytes = (byte[]) serializedRow;

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    public void updateDigest(MessageDigest digest)
    {
        digest.update(name);
        digest.update(value);
        DataOutputBuffer buffer = new DataOutputBuffer();
        try
        {
            buffer.writeLong(timestamp);
            buffer.writeBoolean(isMarkedForDelete);
        }
        catch (IOException e)
        {
            throw new RuntimeException(e);
        }
        digest.update(buffer.getData(), 0, buffer.getLength());
    }

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    public void updateDigest(MessageDigest digest)
    {
        assert name_ != null;
        digest.update(name_);
        DataOutputBuffer buffer = new DataOutputBuffer();
        try
        {
            buffer.writeLong(markedForDeleteAt);
        }
        catch (IOException e)
        {
            throw new RuntimeException(e);
        }
        digest.update(buffer.getData(), 0, buffer.getLength());
        for (IColumn column : columns_.values())
        {
            column.updateDigest(digest);
        }
    }

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    }


    public static Message createMessage(String Keyspace, String Key, String CFName, List<ColumnFamily> ColumnFamiles)
    {
        ColumnFamily baseColumnFamily;
        DataOutputBuffer bufOut = new org.apache.cassandra.io.DataOutputBuffer();
        RowMutation rm;
        Message message;
        Column column;


        /* Get the first column family from list, this is just to get past validation */
        baseColumnFamily = new ColumnFamily(CFName, "Standard",DatabaseDescriptor.getComparator(Keyspace, CFName), DatabaseDescriptor.getSubComparator(Keyspace, CFName));
        
        for(ColumnFamily cf : ColumnFamiles) {
            bufOut.reset();
            try
            {
                ColumnFamily.serializer().serializeWithIndexes(cf, bufOut);
                byte[] data = new byte[bufOut.getLength()];
                System.arraycopy(bufOut.getData(), 0, data, 0, bufOut.getLength());


                column = new Column(cf.name().getBytes("UTF-8"), data, 0, false);
                baseColumnFamily.addColumn(column);
            }
            catch (IOException e)

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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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    {
        ColumnFamily cf;


        cf = ColumnFamily.create("Keyspace1", "Standard1");
        cf.addColumn(column("C", "v", 1));
        DataOutputBuffer bufOut = new DataOutputBuffer();
        ColumnFamily.serializer().serialize(cf, bufOut);


        DataInputBuffer bufIn = new DataInputBuffer();
        bufIn.reset(bufOut.getData(), bufOut.getLength());
        cf = ColumnFamily.serializer().deserialize(bufIn);
        assert cf != null;
        assert cf.name().equals("Standard1");
        assert cf.getSortedColumns().size() == 1;
    }

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            map.put(Integer.toString(i), "Avinash Lakshman is a good man: " + i);
        }


        // write
        cf = ColumnFamily.create("Keyspace1", "Standard1");
        DataOutputBuffer bufOut = new DataOutputBuffer();
        for (String cName : map.navigableKeySet())
        {
            cf.addColumn(column(cName, map.get(cName), 314));
        }
        ColumnFamily.serializer().serialize(cf, bufOut);


        // verify
        DataInputBuffer bufIn = new DataInputBuffer();
        bufIn.reset(bufOut.getData(), bufOut.getLength());
        cf = ColumnFamily.serializer().deserialize(bufIn);
        for (String cName : map.navigableKeySet())
        {
            assert new String(cf.getColumn(cName.getBytes()).value()).equals(map.get(cName));
        }

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                CommitLogContext cLogCtx = new CommitLogContext(logFile_, currentPosition);
                maybeUpdateHeader(rowMutation);
                Checksum checkum = new CRC32();
                if (serializedRow instanceof DataOutputBuffer)
                {
                    DataOutputBuffer buffer = (DataOutputBuffer) serializedRow;
                    logWriter_.writeLong(buffer.getLength());
                    logWriter_.write(buffer.getData(), 0, buffer.getLength());
                    checkum.update(buffer.getData(), 0, buffer.getLength());
                }
                else
                {
                    assert serializedRow instanceof byte[];
                    byte[] bytes = (byte[]) serializedRow;

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        random.nextBytes(bytes);
        ColumnFamily cf;


        cf = new ColumnFamily("Standard1", "Standard");
        cf.addColumn("C", bytes, 1);
        DataOutputBuffer bufOut = new DataOutputBuffer();
        ColumnFamily.serializer().serialize(cf, bufOut);


        DataInputBuffer bufIn = new DataInputBuffer();
        bufIn.reset(bufOut.getData(), bufOut.getLength());
        cf = ColumnFamily.serializer().deserialize(bufIn);
        assert cf != null;
        assert cf.name().equals("Standard1");
        assert cf.getAllColumns().size() == 1;
    }

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org.apache.cassandra.db.Column

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org.apache.cassandra.db.ColumnIndexer

org.apache.cassandra.db.CommitLog

org.apache.cassandra.db.CommitLog$LogRecordAdder

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