org.apache.flink.runtime.operators.util.metrics.CountingIterable Maven / Gradle / Ivy
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* 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,
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package org.apache.flink.runtime.operators.util.metrics;
import org.apache.flink.metrics.Counter;
import java.util.Iterator;
public class CountingIterable implements Iterable {
private final Iterable iterable;
private final Counter numRecordsIn;
public CountingIterable(Iterable iterable, Counter numRecordsIn) {
this.iterable = iterable;
this.numRecordsIn = numRecordsIn;
}
@Override
public Iterator iterator() {
return new CountingIterator<>(this.iterable.iterator(), this.numRecordsIn);
}
}