runners/spark/src/main/java/org/apache/beam/runners/spark/metrics/AggregatorMetric.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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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 * See the License for the specific language governing permissions and
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package org.apache.beam.runners.spark.metrics;

import com.codahale.metrics.Metric;
import org.apache.beam.runners.spark.aggregators.NamedAggregators;

/** An adapter between the {@link NamedAggregators} and Codahale's {@link Metric} interface. */
public class AggregatorMetric implements Metric {

  private final NamedAggregators namedAggregators;

  private AggregatorMetric(final NamedAggregators namedAggregators) {
    this.namedAggregators = namedAggregators;
  }

  public static AggregatorMetric of(final NamedAggregators namedAggregators) {
    return new AggregatorMetric(namedAggregators);
  }

  NamedAggregators getNamedAggregators() {
    return namedAggregators;
  }
}