code: /*
   * Copyright (c) 2022 Airbyte, Inc., all rights reserved.
   */
  
  package io.airbyte.metrics.lib;
  
  /**
   * A mock implementation of MetricClient. Useful for users who do not have any metric client set up
   * but still want to use the functionality of airbyte, or in a unit test where user calls the
   * testing function but did not initialize the metric client in the first place.
   */
  public class NotImplementedMetricClient implements MetricClient {
  
    @Override
    public void count(final MetricsRegistry metric, final long val, final MetricAttribute... attributes) {
      // Not Implemented.
    }
  
    @Override
    public void gauge(final MetricsRegistry metric, final double val, final MetricAttribute... attributes) {
      // Not Implemented.
    }
  
    @Override
    public void distribution(final MetricsRegistry metric, final double val, final MetricAttribute... attributes) {
      // Not Implemented.
    }
  
    @Override
    public void shutdown() {
      // Not Implemented.
    }
  
  }
  