kafka TransactionGenerator 源码
kafka TransactionGenerator 代码
文件路径：/trogdor/src/main/java/org/apache/kafka/trogdor/workload/TransactionGenerator.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.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
/**
* Generates actions that should be taken by a producer that uses transactions.
*/
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME,
include = JsonTypeInfo.As.PROPERTY,
property = "type")
@JsonSubTypes(value = {
@JsonSubTypes.Type(value = UniformTransactionsGenerator.class, name = "uniform"),
@JsonSubTypes.Type(value = TimeIntervalTransactionsGenerator.class, name = "interval"),
})
public interface TransactionGenerator {
enum TransactionAction {
BEGIN_TRANSACTION, COMMIT_TRANSACTION, ABORT_TRANSACTION, NO_OP
}
/**
* Returns the next action that the producer should take in regards to transactions.
* This method should be called every time before a producer sends a message.
* This means that most of the time it should return #{@link TransactionAction#NO_OP}
* to signal the producer that its next step should be to send a message.
*/
TransactionAction nextAction();
}
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