/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.cassandra.db;
import java.io.*;
import org.apache.cassandra.io.DataInputBuffer;
import java.net.InetAddress;
import org.apache.cassandra.net.IVerbHandler;
import org.apache.cassandra.net.Message;
import org.apache.log4j.Logger;
import org.apache.cassandra.net.*;
public class RowMutationVerbHandler implements IVerbHandler
{
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())
logger_.debug("Applying " + rm);
/* Check if there were any hints in this message */
byte[] hintedBytes = message.getHeader(RowMutation.HINT);
if ( hintedBytes != null && hintedBytes.length > 0 )
{
InetAddress hint = InetAddress.getByAddress(hintedBytes);
if (logger_.isDebugEnabled())
logger_.debug("Adding hint for " + hint);
/* add necessary hints to this mutation */
RowMutation hintedMutation = new RowMutation(Table.SYSTEM_TABLE, rm.getTable());
hintedMutation.addHints(rm.key(), hintedBytes);
hintedMutation.apply();
}
Table.open(rm.getTable()).apply(rm, bytes, true);
rm.apply();
WriteResponse response = new WriteResponse(rm.getTable(), rm.key(), true);
Message responseMessage = WriteResponse.makeWriteResponseMessage(message, response);
if (logger_.isDebugEnabled())
logger_.debug(rm + " applied. Sending response to " + message.getMessageId() + "@" + message.getFrom());
MessagingService.instance().sendOneWay(responseMessage, message.getFrom());
}
catch (IOException e)
{
logger_.error("Error in row mutation", e);
}
}
}