content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  // Includes work from:
  /*
   * Copyright 2018 LINE Corporation
   *
   * LINE Corporation licenses this file to you 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:
   *
   *   https://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.
   */
  
  package io.opentelemetry.instrumentation.rxjava.v3.common;
  
  import io.opentelemetry.context.Context;
  import io.opentelemetry.context.Scope;
  import io.reactivex.rxjava3.core.CompletableObserver;
  import io.reactivex.rxjava3.disposables.Disposable;
  import io.reactivex.rxjava3.internal.disposables.DisposableHelper;
  
  public class TracingCompletableObserver implements CompletableObserver, Disposable {
  
    private final CompletableObserver actual;
    private final Context context;
    private Disposable disposable;
  
    public TracingCompletableObserver(CompletableObserver actual, Context context) {
      this.actual = actual;
      this.context = context;
    }
  
    @Override
    public void onSubscribe(Disposable d) {
      if (!DisposableHelper.validate(disposable, d)) {
        return;
      }
      disposable = d;
      actual.onSubscribe(this);
    }
  
    @Override
    public void onComplete() {
      try (Scope ignored = context.makeCurrent()) {
        actual.onComplete();
      }
    }
  
    @Override
    public void onError(Throwable e) {
      try (Scope ignored = context.makeCurrent()) {
        actual.onError(e);
      }
    }
  
    @Override
    public void dispose() {
      disposable.dispose();
    }
  
    @Override
    public boolean isDisposed() {
      return disposable.isDisposed();
    }
  }
  