/**
* 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 org.apache.cassandra.db.RowMutationVerbHandler.RowMutationContext;
import org.apache.cassandra.net.IVerbHandler;
import org.apache.cassandra.net.Message;
import org.apache.cassandra.service.StorageService;
import org.apache.cassandra.utils.LogUtil;
import org.apache.log4j.Logger;
/**
* Author : Avinash Lakshman ( alakshman@facebook.com) & Prashant Malik ( pmalik@facebook.com )
*/
public class BinaryVerbHandler implements IVerbHandler
{
private static Logger logger_ = Logger.getLogger(BinaryVerbHandler.class);
/* We use this so that we can reuse the same row mutation context for the mutation. */
private static ThreadLocal<RowMutationContext> tls_ = new InheritableThreadLocal<RowMutationContext>();
public void doVerb(Message message)
{
byte[] bytes = (byte[])message.getMessageBody()[0];
/* Obtain a Row Mutation Context from TLS */
RowMutationContext rowMutationCtx = tls_.get();
if ( rowMutationCtx == null )
{
rowMutationCtx = new RowMutationContext();
tls_.set(rowMutationCtx);
}
rowMutationCtx.buffer_.reset(bytes, bytes.length);
try
{
RowMutationMessage rmMsg = RowMutationMessage.serializer().deserialize(rowMutationCtx.buffer_);
RowMutation rm = rmMsg.getRowMutation();
rowMutationCtx.row_.key(rm.key());
rm.load(rowMutationCtx.row_);
}
catch ( Exception e )
{
logger_.debug(LogUtil.throwableToString(e));
}
}
}