hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/metrics/DisableEventTypeMetrics.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.hadoop.yarn.metrics;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.metrics2.MetricsCollector;
import org.apache.hadoop.metrics2.annotation.Metrics;

@InterfaceAudience.Private
@Metrics(context="yarn")
public class DisableEventTypeMetrics implements EventTypeMetrics {
  @Override
  public void increment(Enum type, long processingTimeUs) {
    //nop
    return;
  }
  @Override
  public void getMetrics(MetricsCollector collector, boolean all) {
    //nop
    return;
  }

  @Override
  public long get(Enum type) {
    return 0;
  }
}