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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,
 * 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.accumulo.server.util.reflection;

import java.lang.reflect.Method;

import org.apache.hadoop.mapreduce.Counter;

/**
 * Utility class for incrementing counters in a compatible way between hadoop 1 and 2
 */
public class CounterUtils {
  static private Method INCREMENT;
  static {
    try {
      INCREMENT = Counter.class.getMethod("increment", Long.TYPE);
    } catch (Exception ex) {
      throw new RuntimeException(ex);
    }
  }

  public static void increment(Counter counter) {
    try {
      INCREMENT.invoke(counter, 1L);
    } catch (Exception ex) {
      throw new RuntimeException(ex);
    }
  }
}