| /* |
| * 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.exchange.receiver; |
| |
| import org.apache.iotdb.commons.pipe.connector.payload.thrift.request.IoTDBConnectorRequestVersion; |
| import org.apache.iotdb.commons.pipe.receiver.IoTDBReceiver; |
| import org.apache.iotdb.db.pipe.processor.twostage.combiner.PipeCombineHandlerManager; |
| import org.apache.iotdb.db.pipe.processor.twostage.exchange.payload.CombineRequest; |
| import org.apache.iotdb.db.pipe.processor.twostage.exchange.payload.FetchCombineResultRequest; |
| import org.apache.iotdb.db.pipe.processor.twostage.exchange.payload.RequestType; |
| import org.apache.iotdb.rpc.RpcUtils; |
| import org.apache.iotdb.rpc.TSStatusCode; |
| import org.apache.iotdb.service.rpc.thrift.TPipeTransferReq; |
| import org.apache.iotdb.service.rpc.thrift.TPipeTransferResp; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class TwoStageAggregateReceiver implements IoTDBReceiver { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(TwoStageAggregateReceiver.class); |
| |
| @Override |
| public IoTDBConnectorRequestVersion getVersion() { |
| return IoTDBConnectorRequestVersion.VERSION_2; |
| } |
| |
| @Override |
| public TPipeTransferResp receive(TPipeTransferReq req) { |
| try { |
| final short rawRequestType = req.getType(); |
| if (RequestType.isValidatedRequestType(rawRequestType)) { |
| switch (RequestType.valueOf(rawRequestType)) { |
| case COMBINE: |
| return PipeCombineHandlerManager.getInstance() |
| .handle(CombineRequest.fromTPipeTransferReq(req)); |
| case FETCH_COMBINE_RESULT: |
| return PipeCombineHandlerManager.getInstance() |
| .handle(FetchCombineResultRequest.fromTPipeTransferReq(req)); |
| default: |
| break; |
| } |
| } |
| |
| LOGGER.warn("Unknown request type {}: {}.", rawRequestType, req); |
| return new TPipeTransferResp( |
| RpcUtils.getStatus( |
| TSStatusCode.PIPE_TYPE_ERROR, |
| String.format("Unknown request type %s.", rawRequestType))); |
| } catch (Exception e) { |
| LOGGER.warn("Error occurs when receiving request: {}.", req, e); |
| return new TPipeTransferResp( |
| RpcUtils.getStatus( |
| TSStatusCode.PIPE_ERROR, |
| String.format("Error occurs when receiving request: %s.", e.getMessage()))); |
| } |
| } |
| |
| @Override |
| public void handleExit() { |
| if (LOGGER.isDebugEnabled()) { |
| LOGGER.debug("Two stage aggregate receiver is exiting."); |
| } |
| } |
| } |