| /* |
| * 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.confignode.procedure.impl.cq; |
| |
| import org.apache.iotdb.common.rpc.thrift.TSStatus; |
| import org.apache.iotdb.commons.exception.IoTDBException; |
| import org.apache.iotdb.commons.utils.ThriftCommonsSerDeUtils; |
| import org.apache.iotdb.confignode.consensus.request.write.cq.ActiveCQPlan; |
| import org.apache.iotdb.confignode.consensus.request.write.cq.AddCQPlan; |
| import org.apache.iotdb.confignode.consensus.request.write.cq.DropCQPlan; |
| import org.apache.iotdb.confignode.manager.cq.CQScheduleTask; |
| import org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv; |
| import org.apache.iotdb.confignode.procedure.exception.ProcedureException; |
| import org.apache.iotdb.confignode.procedure.exception.ProcedureSuspendedException; |
| import org.apache.iotdb.confignode.procedure.exception.ProcedureYieldException; |
| import org.apache.iotdb.confignode.procedure.impl.node.AbstractNodeProcedure; |
| import org.apache.iotdb.confignode.procedure.state.cq.CreateCQState; |
| import org.apache.iotdb.confignode.procedure.store.ProcedureType; |
| import org.apache.iotdb.confignode.rpc.thrift.TCreateCQReq; |
| import org.apache.iotdb.consensus.exception.ConsensusException; |
| import org.apache.iotdb.rpc.TSStatusCode; |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| |
| import org.apache.commons.codec.digest.DigestUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.Objects; |
| import java.util.concurrent.ScheduledExecutorService; |
| |
| import static org.apache.iotdb.confignode.procedure.state.cq.CreateCQState.INACTIVE; |
| import static org.apache.iotdb.confignode.procedure.state.cq.CreateCQState.SCHEDULED; |
| |
| public class CreateCQProcedure extends AbstractNodeProcedure<CreateCQState> { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(CreateCQProcedure.class); |
| |
| private static final int RETRY_THRESHOLD = 5; |
| |
| private final ScheduledExecutorService executor; |
| |
| private TCreateCQReq req; |
| |
| private String md5; |
| |
| private long firstExecutionTime; |
| |
| private static final String CONSENSUS_WRITE_ERROR = |
| "Failed in the write API executing the consensus layer due to: "; |
| |
| public CreateCQProcedure(ScheduledExecutorService executor) { |
| super(); |
| this.executor = executor; |
| } |
| |
| public CreateCQProcedure(TCreateCQReq req, ScheduledExecutorService executor) { |
| super(); |
| this.req = req; |
| this.md5 = DigestUtils.md2Hex(req.cqId); |
| this.executor = executor; |
| this.firstExecutionTime = |
| CQScheduleTask.getFirstExecutionTime(req.boundaryTime, req.everyInterval); |
| } |
| |
| @Override |
| protected Flow executeFromState(ConfigNodeProcedureEnv env, CreateCQState state) |
| throws ProcedureSuspendedException, ProcedureYieldException, InterruptedException { |
| |
| try { |
| switch (state) { |
| case INIT: |
| addCQ(env); |
| return Flow.HAS_MORE_STATE; |
| case INACTIVE: |
| CQScheduleTask cqScheduleTask = |
| new CQScheduleTask(req, firstExecutionTime, md5, executor, env.getConfigManager()); |
| cqScheduleTask.submitSelf(); |
| setNextState(SCHEDULED); |
| break; |
| case SCHEDULED: |
| activeCQ(env); |
| return Flow.NO_MORE_STATE; |
| default: |
| throw new IllegalArgumentException("Unknown CreateCQState: " + state); |
| } |
| } catch (Exception t) { |
| if (isRollbackSupported(state)) { |
| LOGGER.error("Fail in CreateCQProcedure", t); |
| setFailure(new ProcedureException(t)); |
| } else { |
| LOGGER.error( |
| "Retrievable error trying to create cq [{}], state [{}]", req.getCqId(), state, t); |
| if (getCycles() > RETRY_THRESHOLD) { |
| setFailure( |
| new ProcedureException( |
| String.format( |
| "Fail to create trigger [%s] at STATE [%s]", req.getCqId(), state))); |
| } |
| } |
| } |
| return Flow.HAS_MORE_STATE; |
| } |
| |
| private void addCQ(ConfigNodeProcedureEnv env) { |
| TSStatus res; |
| try { |
| res = |
| env.getConfigManager() |
| .getConsensusManager() |
| .write(new AddCQPlan(req, md5, firstExecutionTime)); |
| } catch (ConsensusException e) { |
| LOGGER.warn(CONSENSUS_WRITE_ERROR, e); |
| res = new TSStatus(TSStatusCode.EXECUTE_STATEMENT_ERROR.getStatusCode()); |
| res.setMessage(e.getMessage()); |
| } |
| if (res.code == TSStatusCode.SUCCESS_STATUS.getStatusCode()) { |
| LOGGER.debug("Finish init CQ {} successfully", req.cqId); |
| setNextState(INACTIVE); |
| } else if (res.code == TSStatusCode.CQ_ALREADY_EXIST.getStatusCode()) { |
| LOGGER.info("Failed to init CQ {} because such cq already exists", req.cqId); |
| setFailure(new ProcedureException(new IoTDBException(res.message, res.code))); |
| } else { |
| LOGGER.warn("Failed to init CQ {} because of unknown reasons {}", req.cqId, res); |
| setFailure(new ProcedureException(new IoTDBException(res.message, res.code))); |
| } |
| } |
| |
| private void activeCQ(ConfigNodeProcedureEnv env) { |
| TSStatus res; |
| try { |
| res = env.getConfigManager().getConsensusManager().write(new ActiveCQPlan(req.cqId, md5)); |
| } catch (ConsensusException e) { |
| LOGGER.warn(CONSENSUS_WRITE_ERROR, e); |
| res = new TSStatus(TSStatusCode.EXECUTE_STATEMENT_ERROR.getStatusCode()); |
| res.setMessage(e.getMessage()); |
| } |
| if (res.code == TSStatusCode.SUCCESS_STATUS.getStatusCode()) { |
| LOGGER.debug("Finish Scheduling CQ {} successfully", req.cqId); |
| } else if (res.code == TSStatusCode.NO_SUCH_CQ.getStatusCode()) { |
| LOGGER.warn("Failed to active CQ {} because of no such cq: {}", req.cqId, res.message); |
| } else if (res.code == TSStatusCode.CQ_ALREADY_ACTIVE.getStatusCode()) { |
| LOGGER.warn("Failed to active CQ {} because this cq has already been active", req.cqId); |
| } else { |
| LOGGER.warn( |
| "Failed to active CQ {} successfully because of unknown reasons {}", req.cqId, res); |
| } |
| } |
| |
| @Override |
| protected void rollbackState(ConfigNodeProcedureEnv env, CreateCQState state) |
| throws IOException, InterruptedException, ProcedureException { |
| switch (state) { |
| case INIT: |
| case SCHEDULED: |
| // do nothing |
| break; |
| case INACTIVE: |
| LOGGER.info("Start [INACTIVE] rollback of CQ {}", req.cqId); |
| TSStatus res; |
| try { |
| res = env.getConfigManager().getConsensusManager().write(new DropCQPlan(req.cqId, md5)); |
| } catch (ConsensusException e) { |
| LOGGER.warn(CONSENSUS_WRITE_ERROR, e); |
| res = new TSStatus(TSStatusCode.EXECUTE_STATEMENT_ERROR.getStatusCode()); |
| res.setMessage(e.getMessage()); |
| } |
| if (res.code == TSStatusCode.SUCCESS_STATUS.getStatusCode()) { |
| LOGGER.info("Finish [INACTIVE] rollback of CQ {} successfully", req.cqId); |
| } else if (res.code == TSStatusCode.NO_SUCH_CQ.getStatusCode()) { |
| LOGGER.warn( |
| "Failed to do [INACTIVE] rollback of CQ {} because of no such cq: {}", |
| req.cqId, |
| res.message); |
| } else { |
| LOGGER.warn( |
| "Failed to do [INACTIVE] rollback of CQ {} because of unknown reasons {}", |
| req.cqId, |
| res); |
| } |
| |
| break; |
| default: |
| throw new IllegalArgumentException("Unknown CreateCQState: " + state); |
| } |
| } |
| |
| @Override |
| protected boolean isRollbackSupported(CreateCQState createCQState) { |
| return createCQState == INACTIVE; |
| } |
| |
| @Override |
| protected CreateCQState getState(int stateId) { |
| return CreateCQState.values()[stateId]; |
| } |
| |
| @Override |
| protected int getStateId(CreateCQState createCQState) { |
| return createCQState.ordinal(); |
| } |
| |
| @Override |
| protected CreateCQState getInitialState() { |
| return CreateCQState.INIT; |
| } |
| |
| @Override |
| public void serialize(DataOutputStream stream) throws IOException { |
| stream.writeShort(ProcedureType.CREATE_CQ_PROCEDURE.getTypeCode()); |
| super.serialize(stream); |
| ThriftCommonsSerDeUtils.serializeTCreateCQReq(req, stream); |
| ReadWriteIOUtils.write(md5, stream); |
| ReadWriteIOUtils.write(firstExecutionTime, stream); |
| } |
| |
| @Override |
| public void deserialize(ByteBuffer byteBuffer) { |
| super.deserialize(byteBuffer); |
| this.req = ThriftCommonsSerDeUtils.deserializeTCreateCQReq(byteBuffer); |
| this.md5 = ReadWriteIOUtils.readString(byteBuffer); |
| this.firstExecutionTime = ReadWriteIOUtils.readLong(byteBuffer); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| CreateCQProcedure that = (CreateCQProcedure) o; |
| return getProcId() == that.getProcId() |
| && getCurrentState().equals(that.getCurrentState()) |
| && getCycles() == that.getCycles() |
| && isGeneratedByPipe == that.isGeneratedByPipe |
| && firstExecutionTime == that.firstExecutionTime |
| && Objects.equals(req, that.req) |
| && Objects.equals(md5, that.md5); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash( |
| getProcId(), |
| getCurrentState(), |
| getCycles(), |
| isGeneratedByPipe, |
| req, |
| md5, |
| firstExecutionTime); |
| } |
| } |