| /** |
| * 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.ByteArrayInputStream; |
| import java.io.DataInputStream; |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.log4j.Logger; |
| |
| import org.apache.cassandra.net.IVerbHandler; |
| import org.apache.cassandra.net.Message; |
| import org.apache.cassandra.net.MessagingService; |
| import org.apache.cassandra.utils.FBUtilities; |
| |
| public class RowMutationVerbHandler implements IVerbHandler |
| { |
| private static Logger logger_ = Logger.getLogger(RowMutationVerbHandler.class); |
| |
| public void doVerb(Message message) |
| { |
| byte[] bytes = message.getMessageBody(); |
| ByteArrayInputStream buffer = new ByteArrayInputStream(bytes); |
| |
| try |
| { |
| RowMutation rm = RowMutation.serializer().deserialize(new DataInputStream(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) |
| { |
| assert hintedBytes.length > 0; |
| ByteBuffer bb = ByteBuffer.wrap(hintedBytes); |
| byte[] addressBytes = new byte[FBUtilities.getLocalAddress().getAddress().length]; |
| while (bb.remaining() > 0) |
| { |
| bb.get(addressBytes); |
| InetAddress hint = InetAddress.getByAddress(addressBytes); |
| if (logger_.isDebugEnabled()) |
| logger_.debug("Adding hint for " + hint); |
| RowMutation hintedMutation = new RowMutation(Table.SYSTEM_TABLE, rm.getTable()); |
| hintedMutation.addHints(rm.key(), addressBytes); |
| hintedMutation.apply(); |
| } |
| } |
| |
| Table.open(rm.getTable()).apply(rm, bytes, true); |
| |
| 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); |
| } |
| } |
| } |