| /* |
| * 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.net; |
| |
| import java.io.IOException; |
| import java.util.EnumSet; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.cassandra.db.filter.TombstoneOverwhelmingException; |
| import org.apache.cassandra.exceptions.RequestFailureReason; |
| import org.apache.cassandra.gms.Gossiper; |
| import org.apache.cassandra.index.IndexNotAvailableException; |
| import org.apache.cassandra.io.util.DataOutputBuffer; |
| |
| public class MessageDeliveryTask implements Runnable |
| { |
| private static final Logger logger = LoggerFactory.getLogger(MessageDeliveryTask.class); |
| |
| private final MessageIn message; |
| private final int id; |
| |
| public MessageDeliveryTask(MessageIn message, int id) |
| { |
| assert message != null; |
| this.message = message; |
| this.id = id; |
| } |
| |
| public void run() |
| { |
| MessagingService.Verb verb = message.verb; |
| long timeTaken = message.getLifetimeInMS(); |
| if (MessagingService.DROPPABLE_VERBS.contains(verb) |
| && timeTaken > message.getTimeout()) |
| { |
| MessagingService.instance().incrementDroppedMessages(message, timeTaken); |
| return; |
| } |
| |
| IVerbHandler verbHandler = MessagingService.instance().getVerbHandler(verb); |
| if (verbHandler == null) |
| { |
| logger.trace("Unknown verb {}", verb); |
| return; |
| } |
| |
| try |
| { |
| verbHandler.doVerb(message, id); |
| } |
| catch (IOException ioe) |
| { |
| handleFailure(ioe); |
| throw new RuntimeException(ioe); |
| } |
| catch (TombstoneOverwhelmingException | IndexNotAvailableException e) |
| { |
| handleFailure(e); |
| logger.error(e.getMessage()); |
| } |
| catch (Throwable t) |
| { |
| handleFailure(t); |
| throw t; |
| } |
| |
| if (GOSSIP_VERBS.contains(message.verb)) |
| Gossiper.instance.setLastProcessedMessageAt(message.constructionTime); |
| } |
| |
| private void handleFailure(Throwable t) |
| { |
| if (message.doCallbackOnFailure()) |
| { |
| MessageOut response = new MessageOut(MessagingService.Verb.INTERNAL_RESPONSE) |
| .withParameter(MessagingService.FAILURE_RESPONSE_PARAM, MessagingService.ONE_BYTE); |
| |
| if (t instanceof TombstoneOverwhelmingException) |
| { |
| try (DataOutputBuffer out = new DataOutputBuffer()) |
| { |
| out.writeShort(RequestFailureReason.READ_TOO_MANY_TOMBSTONES.code); |
| response = response.withParameter(MessagingService.FAILURE_REASON_PARAM, out.getData()); |
| } |
| catch (IOException ex) |
| { |
| throw new RuntimeException(ex); |
| } |
| } |
| |
| MessagingService.instance().sendReply(response, id, message.from); |
| } |
| } |
| |
| private static final EnumSet<MessagingService.Verb> GOSSIP_VERBS = EnumSet.of(MessagingService.Verb.GOSSIP_DIGEST_ACK, |
| MessagingService.Verb.GOSSIP_DIGEST_ACK2, |
| MessagingService.Verb.GOSSIP_DIGEST_SYN); |
| } |