kafka FlushGenerator 源码
kafka FlushGenerator 代码
文件路径：/trogdor/src/main/java/org/apache/kafka/trogdor/workload/FlushGenerator.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;
import org.apache.kafka.clients.producer.KafkaProducer;
/**
* This interface is used to facilitate flushing the KafkaProducers on a cadence specified by the user.
*
* Currently there are 3 flushing methods:
*
* * Disabled, by not specifying this parameter.
* * `constant` will use `ConstantFlushGenerator` to keep the number of messages per batch constant.
* * `gaussian` will use `GaussianFlushGenerator` to vary the number of messages per batch on a normal distribution.
*
* Please see the implementation classes for more details.
*/
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME,
include = JsonTypeInfo.As.PROPERTY,
property = "type")
@JsonSubTypes(value = {
@JsonSubTypes.Type(value = ConstantFlushGenerator.class, name = "constant"),
@JsonSubTypes.Type(value = GaussianFlushGenerator.class, name = "gaussian")
})
public interface FlushGenerator {
<K, V> void increment(KafkaProducer<K, V> producer);
}
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