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   *  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
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   */
  package org.apache.causeway.viewer.graphql.viewer;
  
  import org.apache.causeway.core.webapp.CausewayModuleCoreWebapp;
  
  import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
  import org.springframework.boot.autoconfigure.graphql.GraphQlAutoConfiguration;
  import org.springframework.boot.autoconfigure.graphql.GraphQlCorsProperties;
  import org.springframework.boot.autoconfigure.graphql.GraphQlProperties;
  import org.springframework.boot.autoconfigure.graphql.servlet.GraphQlWebMvcAutoConfiguration;
  import org.springframework.boot.context.properties.EnableConfigurationProperties;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.ComponentScan;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.context.annotation.Import;
  import org.springframework.graphql.execution.BatchLoaderRegistry;
  import org.springframework.graphql.execution.DefaultBatchLoaderRegistry;
  
  import org.apache.causeway.viewer.graphql.model.CausewayModuleViewerGraphqlModel;
  import org.apache.causeway.viewer.graphql.viewer.controller.ResourceController;
  
  @Configuration
  @Import({
          // @Service's
  
          // Modules
          CausewayModuleCoreWebapp.class,
          CausewayModuleViewerGraphqlModel.class,
  
          // autoconfigurations
          GraphQlAutoConfiguration.class,
          GraphQlWebMvcAutoConfiguration.class,
  
          // controllers
          ResourceController.class
  })
  @EnableConfigurationProperties({
          GraphQlProperties.class, GraphQlCorsProperties.class
  })
  @ComponentScan
  public class CausewayModuleViewerGraphqlViewer {
  
      @Bean
      @ConditionalOnMissingBean
      public BatchLoaderRegistry batchLoaderRegistry() {
          return new DefaultBatchLoaderRegistry();
      }
  
  }
  