/*
* 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.flink.streaming.connectors.kafka.testutils;
import org.apache.flink.api.common.functions.MapFunction;
/**
* An identity map function that sleeps between elements, throttling the
* processing speed.
*
* @param <T> The type mapped.
*/
public class ThrottledMapper<T> implements MapFunction<T,T> {
private static final long serialVersionUID = 467008933767159126L;
private final int sleep;
public ThrottledMapper(int sleep) {
this.sleep = sleep;
}
@Override
public T map(T value) throws Exception {
Thread.sleep(this.sleep);
return value;
}
}