| /* |
| * 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.repair.messages; |
| |
| import java.util.UUID; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.cassandra.exceptions.RepairException; |
| import org.apache.cassandra.exceptions.RequestFailureReason; |
| import org.apache.cassandra.gms.Gossiper; |
| import org.apache.cassandra.locator.InetAddressAndPort; |
| import org.apache.cassandra.net.Message; |
| import org.apache.cassandra.net.MessagingService; |
| import org.apache.cassandra.net.RequestCallback; |
| import org.apache.cassandra.net.Verb; |
| import org.apache.cassandra.repair.RepairJobDesc; |
| import org.apache.cassandra.utils.CassandraVersion; |
| |
| import static org.apache.cassandra.net.MessageFlag.CALL_BACK_ON_FAILURE; |
| |
| /** |
| * Base class of all repair related request/response messages. |
| * |
| * @since 2.0 |
| */ |
| public abstract class RepairMessage |
| { |
| private static final CassandraVersion SUPPORTS_TIMEOUTS = new CassandraVersion("4.0.7-SNAPSHOT"); |
| private static final Logger logger = LoggerFactory.getLogger(RepairMessage.class); |
| public final RepairJobDesc desc; |
| |
| protected RepairMessage(RepairJobDesc desc) |
| { |
| this.desc = desc; |
| } |
| |
| public interface RepairFailureCallback |
| { |
| void onFailure(Exception e); |
| } |
| |
| public static void sendMessageWithFailureCB(RepairMessage request, Verb verb, InetAddressAndPort endpoint, RepairFailureCallback failureCallback) |
| { |
| RequestCallback<?> callback = new RequestCallback<Object>() |
| { |
| @Override |
| public void onResponse(Message<Object> msg) |
| { |
| logger.info("[#{}] {} received by {}", request.desc.parentSessionId, verb, endpoint); |
| // todo: at some point we should make repair messages follow the normal path, actually using this |
| } |
| |
| @Override |
| public boolean invokeOnFailure() |
| { |
| return true; |
| } |
| |
| public void onFailure(InetAddressAndPort from, RequestFailureReason failureReason) |
| { |
| logger.error("[#{}] {} failed on {}: {}", request.desc.parentSessionId, verb, from, failureReason); |
| |
| if (supportsTimeouts(from, request.desc.parentSessionId)) |
| failureCallback.onFailure(new RepairException(request.desc, String.format("Got %s failure from %s: %s", verb, from, failureReason))); |
| } |
| }; |
| |
| MessagingService.instance().sendWithCallback(Message.outWithFlag(verb, request, CALL_BACK_ON_FAILURE), |
| endpoint, |
| callback); |
| } |
| |
| private static boolean supportsTimeouts(InetAddressAndPort from, UUID parentSessionId) |
| { |
| CassandraVersion remoteVersion = Gossiper.instance.getReleaseVersion(from); |
| if (remoteVersion != null && remoteVersion.compareTo(SUPPORTS_TIMEOUTS) >= 0) |
| return true; |
| logger.warn("[#{}] Not failing repair due to remote host {} not supporting repair message timeouts (version = {})", parentSessionId, from, remoteVersion); |
| return false; |
| } |
| } |