common/lib/utils/telemetry/xray_telemetry_factory.ts

/*
  Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 
  Licensed 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.
*/

import { TelemetryFactory } from "./telemetry_factory";
import { TelemetryCounter } from "./telemetry_counter";
import { TelemetryGauge } from "./telemetry_gauge";
import { TelemetryTraceLevel } from "./telemetry_trace_level";
import { TelemetryContext } from "./telemetry_context";
import { AwsWrapperError } from "../errors";
import { XRayTelemetryContext } from "./xray_telemetry_context";

export class XRayTelemetryFactory implements TelemetryFactory {
  async init() {}

  createCounter(name: string): TelemetryCounter {
    throw new AwsWrapperError("XRay does not support metrics.");
  }

  createGauge(name: string, callable: () => void): TelemetryGauge {
    return new AwsWrapperError("XRay does not support metrics.");
  }

  openTelemetryContext(name: string, traceLevel: TelemetryTraceLevel): TelemetryContext {
    return new XRayTelemetryContext(name, traceLevel);
  }

  async postCopy(telemetryContext: TelemetryContext, telemetryTraceLevel: TelemetryTraceLevel): Promise<void> {
    if (telemetryContext instanceof XRayTelemetryContext) {
      return XRayTelemetryContext.postCopy(telemetryContext, telemetryTraceLevel);
    }

    throw new AwsWrapperError("Wrong parameter type: " + telemetryContext.constructor.name);
  }
}