| /* |
| * 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.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.cassandra.io.FSError; |
| import org.apache.cassandra.net.IVerbHandler; |
| import org.apache.cassandra.net.MessageIn; |
| import org.apache.cassandra.net.MessagingService; |
| import org.apache.cassandra.tracing.Tracing; |
| |
| public class TruncateVerbHandler implements IVerbHandler<Truncation> |
| { |
| private static final Logger logger = LoggerFactory.getLogger(TruncateVerbHandler.class); |
| |
| public void doVerb(MessageIn<Truncation> message, int id) |
| { |
| Truncation t = message.payload; |
| Tracing.trace("Applying truncation of {}.{}", t.keyspace, t.columnFamily); |
| try |
| { |
| ColumnFamilyStore cfs = Keyspace.open(t.keyspace).getColumnFamilyStore(t.columnFamily); |
| cfs.truncateBlocking(); |
| } |
| catch (Exception e) |
| { |
| logger.error("Error in truncation", e); |
| respondError(t, message); |
| |
| if (FSError.findNested(e) != null) |
| throw FSError.findNested(e); |
| } |
| Tracing.trace("Enqueuing response to truncate operation to {}", message.from); |
| |
| TruncateResponse response = new TruncateResponse(t.keyspace, t.columnFamily, true); |
| logger.trace("{} applied. Enqueuing response to {}@{} ", new Object[]{ t, id, message.from }); |
| MessagingService.instance().sendReply(response.createMessage(), id, message.from); |
| } |
| |
| private static void respondError(Truncation t, MessageIn truncateRequestMessage) |
| { |
| TruncateResponse response = new TruncateResponse(t.keyspace, t.columnFamily, false); |
| MessagingService.instance().sendOneWay(response.createMessage(), truncateRequestMessage.from); |
| } |
| } |