Examples of org.apache.cassandra.io.util.DataOutputBuffer

org.apache.cassandra.io.util.DataOutputBuffer
An implementation of the DataOutputStream interface. This class is completely thread unsafe.

         * | No. of Pending files | Pending Files ... |
         */
        byte[] bytes;
        try
        {
            DataOutputBuffer buffer = new DataOutputBuffer();
            StreamHeader.serializer().serialize(streamHeader, buffer, version);
            bytes = buffer.getData();
        }
        catch (IOException e)
        {
            throw new RuntimeException(e);
        }
        assert bytes.length > 0;


        ByteBuffer buffer = ByteBuffer.allocate(4 + 4 + 4 + bytes.length);
        buffer.putInt(PROTOCOL_MAGIC);
        buffer.putInt(header);
        buffer.putInt(bytes.length);
        buffer.put(bytes);
        buffer.flip();
        return buffer;
    }

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    public void updateDigest(MessageDigest digest)
    {
        assert name_ != null;
        digest.update(name_.duplicate());
        DataOutputBuffer buffer = new DataOutputBuffer();
        try
        {
            buffer.writeLong(markedForDeleteAt.get());
        }
        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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    }


    protected CompactedRow getReduced()
    {
        assert rows.size() > 0;
        DataOutputBuffer buffer = new DataOutputBuffer();
        DecoratedKey key = rows.get(0).getKey();


        try
        {
            if (rows.size() > 1 || major)

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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 static Message createMessage(String Keyspace, String Key, String CFName, List<ColumnFamily> ColumnFamiles)
    {
        ColumnFamily baseColumnFamily;
        DataOutputBuffer bufOut = new 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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        // pack message with header in a bytebuffer
        byte[] data;
        try
        {
            DataOutputBuffer buffer = new DataOutputBuffer();
            Message.serializer().serialize(message, buffer);
            data = buffer.getData();
        }
        catch (IOException e)
        {
            throw new RuntimeException(e);
        }

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    private SSTableReader writeSortedContents() throws IOException
    {
        logger.info("Writing " + this);
        SSTableWriter writer = new SSTableWriter(cfs.getFlushPath(), columnFamilies.size(), StorageService.getPartitioner());


        DataOutputBuffer buffer = new DataOutputBuffer();
        for (Map.Entry<DecoratedKey, ColumnFamily> entry : columnFamilies.entrySet())
        {
            buffer.reset();
            /* serialize the cf with column indexes */
            ColumnFamily.serializer().serializeWithIndexes(entry.getValue(), buffer);
            /* Now write the key and value to disk */
            writer.append(entry.getKey(), buffer);
        }

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        return rm;
    }
    
    public DataOutputBuffer getSerializedBuffer() throws IOException
    {
        DataOutputBuffer buffer = new DataOutputBuffer();
        RowMutation.serializer().serialize(this, buffer);
        return buffer;
    }

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        Token mid = part.midpoint(min, min);
        validator.prepare();


        // add a row with the minimum token
        validator.add(new CompactedRow(new DecoratedKey(min, "nonsense!"),
                                       new DataOutputBuffer()));


        // and a row after it
        validator.add(new CompactedRow(new DecoratedKey(mid, "inconceivable!"),
                                       new DataOutputBuffer()));
        validator.complete();


        // confirm that the tree was validated
        assert null != validator.tree.hash(new Range(min, min));
    }

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        try
        {
            switch (compression)
            {
                case GZIP:
                    DataOutputBuffer decompressed = new DataOutputBuffer();
                    byte[] outBuffer = new byte[1024], inBuffer = new byte[1024];


                    Inflater decompressor = new Inflater();


                    int lenRead = 0;
                    while (true)
                    {
                        if (decompressor.needsInput())
                            lenRead = query.remaining() < 1024 ? query.remaining() : 1024;
                            query.get(inBuffer, 0, lenRead);
                            decompressor.setInput(inBuffer, 0, lenRead);


                        int lenWrite = 0;
                        while ((lenWrite = decompressor.inflate(outBuffer)) !=0)
                            decompressed.write(outBuffer, 0, lenWrite);


                        if (decompressor.finished())
                            break;
                    }


                    decompressor.end();


                    queryString = new String(decompressed.getData(), 0, decompressed.size(), "UTF-8");
                    break;
                case NONE:
                    try
                    {
                        queryString = ByteBufferUtil.string(query);

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org.apache.cassandra.db.Column

org.apache.cassandra.db.ColumnFamily

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