content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.tapestry;
  
  import io.opentelemetry.api.GlobalOpenTelemetry;
  import io.opentelemetry.instrumentation.api.instrumenter.ErrorCauseExtractor;
  import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
  import io.opentelemetry.javaagent.bootstrap.internal.ExperimentalConfig;
  import org.apache.tapestry5.runtime.ComponentEventException;
  
  public class TapestrySingletons {
    private static final String INSTRUMENTATION_NAME = "io.opentelemetry.tapestry-5.4";
  
    private static final Instrumenter<TapestryRequest, Void> INSTRUMENTER;
  
    static {
      INSTRUMENTER =
          Instrumenter.<TapestryRequest, Void>builder(
                  GlobalOpenTelemetry.get(), INSTRUMENTATION_NAME, TapestryRequest::spanName)
              .setErrorCauseExtractor(
                  error -> {
                    if (error instanceof ComponentEventException) {
                      error = error.getCause();
                    }
                    return ErrorCauseExtractor.getDefault().extract(error);
                  })
              .setEnabled(ExperimentalConfig.get().controllerTelemetryEnabled())
              .buildInstrumenter();
    }
  
    public static Instrumenter<TapestryRequest, Void> instrumenter() {
      return INSTRUMENTER;
    }
  
    private TapestrySingletons() {}
  }
  