| /* |
| * 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.subscription.topic; |
| |
| import org.apache.iotdb.common.rpc.thrift.TSStatus; |
| import org.apache.iotdb.commons.subscription.meta.topic.TopicMeta; |
| import org.apache.iotdb.confignode.consensus.request.write.subscription.topic.AlterTopicPlan; |
| import org.apache.iotdb.confignode.persistence.subscription.SubscriptionInfo; |
| import org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv; |
| import org.apache.iotdb.confignode.procedure.impl.subscription.AbstractOperateSubscriptionProcedure; |
| import org.apache.iotdb.confignode.procedure.impl.subscription.SubscriptionOperation; |
| import org.apache.iotdb.confignode.procedure.store.ProcedureType; |
| import org.apache.iotdb.consensus.exception.ConsensusException; |
| import org.apache.iotdb.rpc.RpcUtils; |
| import org.apache.iotdb.rpc.TSStatusCode; |
| import org.apache.iotdb.rpc.subscription.exception.SubscriptionException; |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| public class AlterTopicProcedure extends AbstractOperateSubscriptionProcedure { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(AlterTopicProcedure.class); |
| |
| private TopicMeta updatedTopicMeta; |
| |
| private TopicMeta existedTopicMeta; |
| |
| public AlterTopicProcedure() { |
| super(); |
| } |
| |
| public AlterTopicProcedure(TopicMeta updatedTopicMeta) { |
| super(); |
| this.updatedTopicMeta = updatedTopicMeta; |
| } |
| |
| /** This is only used when the subscription info lock is held by another procedure. */ |
| public AlterTopicProcedure( |
| TopicMeta updatedTopicMeta, AtomicReference<SubscriptionInfo> subscriptionInfo) { |
| super(); |
| this.updatedTopicMeta = updatedTopicMeta; |
| this.subscriptionInfo = subscriptionInfo; |
| } |
| |
| /** This should be called after {@link #executeFromValidate}. */ |
| public TopicMeta getExistedTopicMeta() { |
| return existedTopicMeta; |
| } |
| |
| /** This should be called after {@link #executeFromValidate}. */ |
| public TopicMeta getUpdatedTopicMeta() { |
| return updatedTopicMeta; |
| } |
| |
| @Override |
| protected SubscriptionOperation getOperation() { |
| return SubscriptionOperation.ALTER_TOPIC; |
| } |
| |
| @Override |
| public void executeFromValidate(ConfigNodeProcedureEnv env) throws SubscriptionException { |
| LOGGER.info("AlterTopicProcedure: executeFromValidate"); |
| |
| subscriptionInfo.get().validateBeforeAlteringTopic(updatedTopicMeta); |
| |
| existedTopicMeta = subscriptionInfo.get().getTopicMeta(updatedTopicMeta.getTopicName()); |
| } |
| |
| @Override |
| public void executeFromOperateOnConfigNodes(ConfigNodeProcedureEnv env) |
| throws SubscriptionException { |
| LOGGER.info("AlterTopicProcedure: executeFromOperateOnConfigNodes, try to alter topic"); |
| |
| TSStatus response; |
| try { |
| response = |
| env.getConfigManager().getConsensusManager().write(new AlterTopicPlan(updatedTopicMeta)); |
| } catch (ConsensusException e) { |
| LOGGER.warn("Failed in the write API executing the consensus layer due to: ", e); |
| response = |
| new TSStatus(TSStatusCode.ALTER_TOPIC_ERROR.getStatusCode()).setMessage(e.getMessage()); |
| } |
| |
| if (response.getCode() != TSStatusCode.SUCCESS_STATUS.getStatusCode()) { |
| throw new SubscriptionException( |
| String.format( |
| "Failed to alter topic (%s -> %s) on config nodes, because %s", |
| existedTopicMeta, updatedTopicMeta, response)); |
| } |
| } |
| |
| @Override |
| public void executeFromOperateOnDataNodes(ConfigNodeProcedureEnv env) |
| throws SubscriptionException { |
| LOGGER.info( |
| "AlterTopicProcedure: executeFromOperateOnDataNodes({})", updatedTopicMeta.getTopicName()); |
| |
| try { |
| final List<TSStatus> statuses = env.pushSingleTopicOnDataNode(updatedTopicMeta.serialize()); |
| if (RpcUtils.squashResponseStatusList(statuses).getCode() |
| != TSStatusCode.SUCCESS_STATUS.getStatusCode()) { |
| throw new SubscriptionException( |
| String.format( |
| "Failed to alter topic (%s -> %s) on data nodes, because %s", |
| existedTopicMeta, updatedTopicMeta, statuses)); |
| } |
| } catch (IOException e) { |
| LOGGER.warn("Failed to serialize the topic meta due to: ", e); |
| throw new SubscriptionException( |
| String.format( |
| "Failed to alter topic (%s -> %s) on data nodes, because %s", |
| existedTopicMeta, updatedTopicMeta, e.getMessage())); |
| } |
| } |
| |
| @Override |
| public void rollbackFromValidate(ConfigNodeProcedureEnv env) { |
| LOGGER.info("AlterTopicProcedure: rollbackFromValidate({})", updatedTopicMeta.getTopicName()); |
| } |
| |
| @Override |
| public void rollbackFromOperateOnConfigNodes(ConfigNodeProcedureEnv env) { |
| LOGGER.info( |
| "AlterTopicProcedure: rollbackFromOperateOnConfigNodes({})", |
| updatedTopicMeta.getTopicName()); |
| |
| TSStatus response; |
| try { |
| response = |
| env.getConfigManager().getConsensusManager().write(new AlterTopicPlan(existedTopicMeta)); |
| } catch (ConsensusException e) { |
| LOGGER.warn("Failed in the write API executing the consensus layer due to: ", e); |
| response = |
| new TSStatus(TSStatusCode.ALTER_TOPIC_ERROR.getStatusCode()).setMessage(e.getMessage()); |
| } |
| |
| if (response.getCode() != TSStatusCode.SUCCESS_STATUS.getStatusCode()) { |
| throw new SubscriptionException( |
| String.format( |
| "Failed to rollback from altering topic (%s -> %s) on config nodes, because %s", |
| updatedTopicMeta, existedTopicMeta, response)); |
| } |
| } |
| |
| @Override |
| public void rollbackFromOperateOnDataNodes(ConfigNodeProcedureEnv env) { |
| LOGGER.info( |
| "AlterTopicProcedure: rollbackFromOperateOnDataNodes({})", updatedTopicMeta.getTopicName()); |
| |
| try { |
| final List<TSStatus> statuses = env.pushSingleTopicOnDataNode(existedTopicMeta.serialize()); |
| if (RpcUtils.squashResponseStatusList(statuses).getCode() |
| != TSStatusCode.SUCCESS_STATUS.getStatusCode()) { |
| throw new SubscriptionException( |
| String.format( |
| "Failed to rollback from altering topic (%s -> %s) on data nodes, because %s", |
| updatedTopicMeta, existedTopicMeta, statuses)); |
| } |
| } catch (IOException e) { |
| LOGGER.warn("Failed to serialize the topic meta due to: ", e); |
| throw new SubscriptionException( |
| String.format( |
| "Failed to rollback from altering topic (%s -> %s) on data nodes, because %s", |
| updatedTopicMeta, existedTopicMeta, e.getMessage())); |
| } |
| } |
| |
| @Override |
| public void serialize(DataOutputStream stream) throws IOException { |
| stream.writeShort(ProcedureType.ALTER_TOPIC_PROCEDURE.getTypeCode()); |
| super.serialize(stream); |
| |
| ReadWriteIOUtils.write(updatedTopicMeta != null, stream); |
| if (updatedTopicMeta != null) { |
| updatedTopicMeta.serialize(stream); |
| } |
| |
| ReadWriteIOUtils.write(existedTopicMeta != null, stream); |
| if (existedTopicMeta != null) { |
| existedTopicMeta.serialize(stream); |
| } |
| } |
| |
| @Override |
| public void deserialize(ByteBuffer byteBuffer) { |
| super.deserialize(byteBuffer); |
| |
| if (ReadWriteIOUtils.readBool(byteBuffer)) { |
| updatedTopicMeta = TopicMeta.deserialize(byteBuffer); |
| } |
| |
| if (ReadWriteIOUtils.readBool(byteBuffer)) { |
| existedTopicMeta = TopicMeta.deserialize(byteBuffer); |
| } |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| AlterTopicProcedure that = (AlterTopicProcedure) o; |
| return Objects.equals(getProcId(), that.getProcId()) |
| && Objects.equals(getCurrentState(), that.getCurrentState()) |
| && getCycles() == that.getCycles() |
| && Objects.equals(updatedTopicMeta, that.updatedTopicMeta) |
| && Objects.equals(existedTopicMeta, that.existedTopicMeta); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash( |
| getProcId(), getCurrentState(), getCycles(), updatedTopicMeta, existedTopicMeta); |
| } |
| } |