| /* |
| * 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.consumer; |
| |
| import org.apache.iotdb.commons.subscription.meta.consumer.ConsumerGroupMeta; |
| import org.apache.iotdb.commons.subscription.meta.consumer.ConsumerMeta; |
| import org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv; |
| import org.apache.iotdb.confignode.procedure.impl.subscription.SubscriptionOperation; |
| import org.apache.iotdb.confignode.procedure.store.ProcedureType; |
| import org.apache.iotdb.confignode.rpc.thrift.TCreateConsumerReq; |
| import org.apache.iotdb.pipe.api.exception.PipeException; |
| |
| import org.apache.tsfile.utils.ReadWriteIOUtils; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| public class CreateConsumerProcedure extends AlterConsumerGroupProcedure { |
| |
| private TCreateConsumerReq createConsumerReq; |
| |
| public CreateConsumerProcedure() { |
| super(); |
| } |
| |
| public CreateConsumerProcedure(TCreateConsumerReq createConsumerReq) throws PipeException { |
| super(); |
| this.createConsumerReq = createConsumerReq; |
| } |
| |
| @Override |
| protected SubscriptionOperation getOperation() { |
| return SubscriptionOperation.CREATE_CONSUMER; |
| } |
| |
| @Override |
| protected void validateAndGetOldAndNewMeta(ConfigNodeProcedureEnv env) { |
| subscriptionInfo.get().validateBeforeCreatingConsumer(createConsumerReq); |
| |
| existingConsumerGroupMeta = |
| subscriptionInfo.get().getConsumerGroupMeta(createConsumerReq.getConsumerGroupId()); |
| |
| final long creationTime = System.currentTimeMillis(); |
| final ConsumerMeta newConsumerMeta = |
| new ConsumerMeta( |
| createConsumerReq.getConsumerId(), |
| creationTime, |
| createConsumerReq.getConsumerAttributes()); |
| if (existingConsumerGroupMeta == null) { |
| updatedConsumerGroupMeta = |
| new ConsumerGroupMeta( |
| createConsumerReq.getConsumerGroupId(), creationTime, newConsumerMeta); |
| } else { |
| updatedConsumerGroupMeta = existingConsumerGroupMeta.deepCopy(); |
| updatedConsumerGroupMeta.addConsumer(newConsumerMeta); |
| } |
| } |
| |
| @Override |
| public void serialize(DataOutputStream stream) throws IOException { |
| stream.writeShort(ProcedureType.CREATE_CONSUMER_PROCEDURE.getTypeCode()); |
| |
| super.serialize(stream); |
| |
| ReadWriteIOUtils.write(createConsumerReq.getConsumerId(), stream); |
| ReadWriteIOUtils.write(createConsumerReq.getConsumerGroupId(), stream); |
| final int size = createConsumerReq.getConsumerAttributes().size(); |
| ReadWriteIOUtils.write(size, stream); |
| if (size != 0) { |
| for (Map.Entry<String, String> entry : createConsumerReq.getConsumerAttributes().entrySet()) { |
| ReadWriteIOUtils.write(entry.getKey(), stream); |
| ReadWriteIOUtils.write(entry.getValue(), stream); |
| } |
| } |
| } |
| |
| @Override |
| public void deserialize(ByteBuffer byteBuffer) { |
| // This readShort should return ALTER_CONSUMER_GROUP_PROCEDURE, and we ignore it. |
| ReadWriteIOUtils.readShort(byteBuffer); |
| |
| super.deserialize(byteBuffer); |
| |
| createConsumerReq = |
| new TCreateConsumerReq() |
| .setConsumerId(ReadWriteIOUtils.readString(byteBuffer)) |
| .setConsumerGroupId(ReadWriteIOUtils.readString(byteBuffer)) |
| .setConsumerAttributes(new HashMap<>()); |
| final int size = ReadWriteIOUtils.readInt(byteBuffer); |
| for (int i = 0; i < size; ++i) { |
| createConsumerReq |
| .getConsumerAttributes() |
| .put(ReadWriteIOUtils.readString(byteBuffer), ReadWriteIOUtils.readString(byteBuffer)); |
| } |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| return super.equals(o) |
| && Objects.equals(createConsumerReq, ((CreateConsumerProcedure) o).createConsumerReq); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(super.hashCode(), createConsumerReq); |
| } |
| } |