content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF 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
   *
   *      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.
   */
  package org.apache.camel.quarkus.component.reactive.streams;
  
  import io.quarkus.runtime.RuntimeValue;
  import io.quarkus.runtime.annotations.Recorder;
  import org.apache.camel.RuntimeCamelException;
  import org.apache.camel.component.reactive.streams.ReactiveStreamsComponent;
  import org.apache.camel.component.reactive.streams.api.CamelReactiveStreamsService;
  import org.apache.camel.component.reactive.streams.api.CamelReactiveStreamsServiceFactory;
  import org.apache.camel.component.reactive.streams.engine.DefaultCamelReactiveStreamsServiceFactory;
  import org.apache.camel.component.reactive.streams.engine.ReactiveStreamsEngineConfiguration;
  import org.apache.camel.support.service.ServiceHelper;
  
  @Recorder
  public class ReactiveStreamsRecorder {
      public RuntimeValue<CamelReactiveStreamsServiceFactory> createDefaultReactiveStreamsServiceFactory() {
          return new RuntimeValue<>(new DefaultCamelReactiveStreamsServiceFactory());
      }
  
      public RuntimeValue<ReactiveStreamsComponent> createReactiveStreamsComponent(
              RuntimeValue<CamelReactiveStreamsServiceFactory> serviceFactory) {
          return new RuntimeValue<>(new QuarkusReactiveStreamsComponent(serviceFactory.getValue()));
      }
  
      private static class QuarkusReactiveStreamsComponent extends ReactiveStreamsComponent {
          private final CamelReactiveStreamsServiceFactory reactiveStreamServiceFactory;
          private final Object lock;
          private CamelReactiveStreamsService reactiveStreamService;
  
          public QuarkusReactiveStreamsComponent(CamelReactiveStreamsServiceFactory reactiveStreamServiceFactory) {
              this.reactiveStreamServiceFactory = reactiveStreamServiceFactory;
              this.lock = new Object();
          }
  
          @Override
          public CamelReactiveStreamsService getReactiveStreamsService() {
              synchronized (this.lock) {
                  if (getReactiveStreamsEngineConfiguration() == null) {
                      ReactiveStreamsEngineConfiguration reactiveStreamsEngineConfiguration = new ReactiveStreamsEngineConfiguration();
                      reactiveStreamsEngineConfiguration.setThreadPoolMaxSize(getThreadPoolMaxSize());
                      reactiveStreamsEngineConfiguration.setThreadPoolMinSize(getThreadPoolMinSize());
                      reactiveStreamsEngineConfiguration.setThreadPoolName(getThreadPoolName());
                      setReactiveStreamsEngineConfiguration(reactiveStreamsEngineConfiguration);
                  }
                  if (reactiveStreamService == null) {
                      this.reactiveStreamService = reactiveStreamServiceFactory.newInstance(
                              getCamelContext(),
                              getReactiveStreamsEngineConfiguration());
  
                      try {
                          // Start the service and add it to the Camel context to expose managed attributes
                          getCamelContext().addService(this.reactiveStreamService, true, true);
                      } catch (Exception e) {
                          throw new RuntimeCamelException(e);
                      }
                  }
              }
  
              return this.reactiveStreamService;
          }
  
          @Override
          protected void doStop() throws Exception {
              ServiceHelper.stopService(this.reactiveStreamService);
              this.reactiveStreamService = null;
  
              super.doStop();
          }
      }
  }
  