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.grpc.runtime;
  
  import io.grpc.BindableService;
  import jakarta.enterprise.inject.Instance;
  import jakarta.inject.Inject;
  import jakarta.inject.Named;
  import jakarta.inject.Singleton;
  import org.apache.camel.CamelContext;
  import org.apache.camel.component.grpc.GrpcConsumer;
  import org.apache.camel.component.grpc.GrpcEndpoint;
  import org.apache.camel.component.grpc.GrpcUtils;
  import org.apache.camel.component.grpc.server.BindableServiceFactory;
  import org.apache.camel.component.grpc.server.GrpcMethodHandler;
  
  import static org.apache.camel.component.grpc.GrpcConstants.GRPC_BINDABLE_SERVICE_FACTORY_NAME;
  
  /**
   * A custom BindableServiceFactory which finds, configures and returns the appropriate BindableService
   * that was dynamically generated at build time
   */
  @Singleton
  @Named(GRPC_BINDABLE_SERVICE_FACTORY_NAME)
  public class QuarkusBindableServiceFactory implements BindableServiceFactory {
  
      @Inject
      Instance<CamelQuarkusBindableService> bindableServices;
  
      @Override
      public BindableService createBindableService(GrpcConsumer consumer) {
          GrpcEndpoint endpoint = (GrpcEndpoint) consumer.getEndpoint();
          CamelContext camelContext = endpoint.getCamelContext();
  
          Class<?> baseClass = GrpcUtils.constructGrpcImplBaseClass(endpoint.getServicePackage(), endpoint.getServiceName(),
                  camelContext);
  
          // Find the BindableService implementation that was generated in GrpcProcessor and configure the GrpcMethodHandler
          CamelQuarkusBindableService bindableService = bindableServices.stream()
                  .filter(service -> baseClass.isAssignableFrom(service.getClass()))
                  .findFirst()
                  .orElseThrow(() -> new IllegalStateException(
                          "Unable to find generated class for service " + endpoint.getServiceName()));
          GrpcMethodHandler methodHandler = new GrpcMethodHandler(consumer);
          bindableService.setMethodHandler(methodHandler);
          return bindableService;
      }
  }
  