/** * 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.*; import java.net.InetAddress; import java.nio.ByteBuffer; import org.apache.cassandra.net.IVerbHandler; import org.apache.cassandra.net.Message; import org.apache.log4j.Logger; import org.apache.cassandra.net.*; 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); } } }