/**
* 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.service;
import org.apache.cassandra.db.SnapshotCommand;
import org.apache.cassandra.db.Table;
import org.apache.cassandra.net.IVerbHandler;
import org.apache.cassandra.net.Message;
import org.apache.cassandra.net.MessagingService;
import org.apache.cassandra.utils.FBUtilities;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class SnapshotVerbHandler implements IVerbHandler
{
private static final Logger logger = LoggerFactory.getLogger(SnapshotVerbHandler.class);
public void doVerb(Message message, String id)
{
try
{
SnapshotCommand command = SnapshotCommand.read(message);
if (command.clear_snapshot)
Table.open(command.keyspace).clearSnapshot(command.snapshot_name);
else
Table.open(command.keyspace).getColumnFamilyStore(command.column_family).snapshot(command.snapshot_name);
Message response = message.getReply(FBUtilities.getBroadcastAddress(), new byte[0], MessagingService.version_);
if (logger.isDebugEnabled())
logger.debug("Sending response to snapshot request {} to {} ", command.snapshot_name, message.getFrom());
MessagingService.instance().sendReply(response, id, message.getFrom());
}
catch (Exception ex)
{
throw new RuntimeException(ex);
}
}
}