| /* |
| * 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.iotdb.db.pipe.processor.twostage.combiner; |
| |
| import org.apache.iotdb.common.rpc.thrift.TSStatus; |
| import org.apache.iotdb.commons.pipe.config.PipeConfig; |
| import org.apache.iotdb.db.pipe.processor.twostage.operator.Operator; |
| import org.apache.iotdb.db.pipe.processor.twostage.state.State; |
| import org.apache.iotdb.rpc.RpcUtils; |
| import org.apache.iotdb.rpc.TSStatusCode; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentMap; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| public class Combiner { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(Combiner.class); |
| |
| private static final long MAX_COMBINER_LIVE_TIME_IN_MS = |
| PipeConfig.getInstance().getTwoStageAggregateMaxCombinerLiveTimeInMs(); |
| private final long creationTimeInMs; |
| |
| private final Operator operator; |
| |
| private final ConcurrentMap<Integer, Integer> expectedRegionId2DataNodeIdMap; |
| private final Set<Integer> receivedRegionIdSet; |
| |
| private final AtomicBoolean isComplete = new AtomicBoolean(false); |
| |
| public Combiner( |
| Operator operator, ConcurrentMap<Integer, Integer> expectedRegionId2DataNodeIdMap) { |
| this.creationTimeInMs = System.currentTimeMillis(); |
| |
| this.operator = operator; |
| |
| this.expectedRegionId2DataNodeIdMap = expectedRegionId2DataNodeIdMap; |
| this.receivedRegionIdSet = new HashSet<>(); |
| } |
| |
| public TSStatus combine(int regionId, State state) { |
| final Set<Integer> finalExpectedRegionIdSet = |
| new HashSet<>(expectedRegionId2DataNodeIdMap.keySet()); |
| |
| if (finalExpectedRegionIdSet.isEmpty()) { |
| return RpcUtils.getStatus( |
| TSStatusCode.PIPE_ERROR, "Expected region id set is empty. Sender should try again."); |
| } |
| |
| receivedRegionIdSet.add(regionId); |
| operator.combine(state); |
| |
| if (LOGGER.isDebugEnabled()) { |
| LOGGER.debug( |
| "Combiner combine: regionId: {}, state: {}, receivedRegionIdSet: {}, expectedRegionIdSet: {}", |
| regionId, |
| state, |
| receivedRegionIdSet, |
| finalExpectedRegionIdSet); |
| } |
| |
| if (receivedRegionIdSet.containsAll(finalExpectedRegionIdSet)) { |
| operator.onComplete(); |
| isComplete.set(true); |
| |
| if (LOGGER.isInfoEnabled()) { |
| LOGGER.info( |
| "Combiner combine completed: regionId: {}, state: {}, receivedRegionIdSet: {}, expectedRegionIdSet: {}", |
| regionId, |
| state, |
| receivedRegionIdSet, |
| finalExpectedRegionIdSet); |
| } |
| } |
| |
| return RpcUtils.getStatus(TSStatusCode.SUCCESS_STATUS); |
| } |
| |
| public boolean isOutdated() { |
| return System.currentTimeMillis() - creationTimeInMs > MAX_COMBINER_LIVE_TIME_IN_MS; |
| } |
| |
| public boolean isComplete() { |
| return isComplete.get(); |
| } |
| } |