package com.atlassian.vcache.internal.core.metrics;
   
   import com.atlassian.vcache.ExternalCache;
   import com.atlassian.vcache.ExternalWriteOperationsUnbuffered;
   import com.atlassian.vcache.StableReadExternalCache;
   
   import static java.util.Objects.requireNonNull;
   
   /**
   * Wrapper for a {@link StableReadExternalCache} that records metrics.
   *
   * @param <V> the value type
   * @since 1.0.0
   */
  class TimedStableReadExternalCache<V>
          extends TimedExternalWriteOperationsUnbuffered<V>
          implements StableReadExternalCache<V> {
      private final StableReadExternalCache<V> delegate;
  
      TimedStableReadExternalCache(MetricsRecorder metricsRecorder, StableReadExternalCache<V> delegate) {
          super(metricsRecorder);
          this.delegate = requireNonNull(delegate);
      }
  
      @Override
      protected ExternalWriteOperationsUnbuffered<V> getDelegateOps() {
          return delegate;
      }
  
      @Override
      protected ExternalCache<V> getDelegate() {
          return delegate;
      }
  }