package org.apache.cassandra.gms;
/*
*
* 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.
*
*/
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;
import java.net.InetAddress;
import org.apache.log4j.Logger;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.net.IVerbHandler;
import org.apache.cassandra.net.Message;
public class GossiperJoinVerbHandler implements IVerbHandler
{
private static Logger logger_ = Logger.getLogger( GossiperJoinVerbHandler.class);
public void doVerb(Message message)
{
InetAddress from = message.getFrom();
if (logger_.isDebugEnabled())
logger_.debug("Received a JoinMessage from " + from);
byte[] bytes = message.getMessageBody();
DataInputStream dis = new DataInputStream( new ByteArrayInputStream(bytes) );
JoinMessage joinMessage;
try
{
joinMessage = JoinMessage.serializer().deserialize(dis);
}
catch (IOException e)
{
throw new RuntimeException(e);
}
if ( joinMessage.clusterId_.equals( DatabaseDescriptor.getClusterName() ) )
{
Gossiper.instance.join(from);
}
else
{
logger_.warn("ClusterName mismatch from " + from + " " + joinMessage.clusterId_ + "!=" + DatabaseDescriptor.getClusterName());
}
}
}