kafka UniformTransactionsGenerator 源码

  • 2022-10-20
  • 浏览 (678)

kafka UniformTransactionsGenerator 代码

文件路径:/trogdor/src/main/java/org/apache/kafka/trogdor/workload/UniformTransactionsGenerator.java

/*
 * 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.kafka.trogdor.workload;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

/**
 * A uniform transactions generator where every N records are grouped in a separate transaction
 */
public class UniformTransactionsGenerator implements TransactionGenerator {

    private final int messagesPerTransaction;
    private int messagesInTransaction = -1;

    @JsonCreator
    public UniformTransactionsGenerator(@JsonProperty("messagesPerTransaction") int messagesPerTransaction) {
        if (messagesPerTransaction < 1)
            throw new IllegalArgumentException("Cannot have less than one message per transaction.");

        this.messagesPerTransaction = messagesPerTransaction;
    }

    @JsonProperty
    public int messagesPerTransaction() {
        return messagesPerTransaction;
    }

    @Override
    public synchronized TransactionAction nextAction() {
        if (messagesInTransaction == -1) {
            messagesInTransaction = 0;
            return TransactionAction.BEGIN_TRANSACTION;
        }
        if (messagesInTransaction == messagesPerTransaction) {
            messagesInTransaction = -1;
            return TransactionAction.COMMIT_TRANSACTION;
        }

        messagesInTransaction += 1;
        return TransactionAction.NO_OP;
    }
}

相关信息

kafka 源码目录

相关文章

kafka ConfigurableProducerSpec 源码

kafka ConfigurableProducerWorker 源码

kafka ConnectionStressSpec 源码

kafka ConnectionStressWorker 源码

kafka ConstantFlushGenerator 源码

kafka ConstantPayloadGenerator 源码

kafka ConstantThroughputGenerator 源码

kafka ConsumeBenchSpec 源码

kafka ConsumeBenchWorker 源码

kafka ExternalCommandSpec 源码

0  赞