content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.instrumentation.api.incubator.semconv.rpc;
  
  import io.opentelemetry.instrumentation.api.instrumenter.AttributesExtractor;
  import io.opentelemetry.instrumentation.api.internal.SpanKey;
  import io.opentelemetry.instrumentation.api.internal.SpanKeyProvider;
  
  /**
   * Extractor of <a
   * href="https://github.com/open-telemetry/semantic-conventions/blob/main/docs/rpc/rpc-spans.md">RPC
   * client attributes</a>.
   *
   * <p>This class delegates to a type-specific {@link RpcAttributesGetter} for individual attribute
   * extraction from request/response objects.
   */
  public final class RpcClientAttributesExtractor<REQUEST, RESPONSE>
      extends RpcCommonAttributesExtractor<REQUEST, RESPONSE> implements SpanKeyProvider {
  
    /** Creates the RPC client attributes extractor. */
    public static <REQUEST, RESPONSE> AttributesExtractor<REQUEST, RESPONSE> create(
        RpcAttributesGetter<REQUEST> getter) {
      return new RpcClientAttributesExtractor<>(getter);
    }
  
    private RpcClientAttributesExtractor(RpcAttributesGetter<REQUEST> getter) {
      super(getter);
    }
  
    /**
     * This method is internal and is hence not for public use. Its API is unstable and can change at
     * any time.
     */
    @Override
    public SpanKey internalGetSpanKey() {
      return SpanKey.RPC_CLIENT;
    }
  }
  