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.causeway.core.runtimeservices.spring;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.Map;
  import java.util.function.Function;
  import java.util.stream.Collectors;
  
  import org.springframework.beans.factory.config.BeanDefinition;
  import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
  import org.springframework.context.ConfigurableApplicationContext;
  
  /**
   * @since 2.0 {@index}
   */
  public record ContextBeans(
      Map<String, BeanDescriptor> beans,
      String parentId,
      ConfigurableApplicationContext context) {
  
      static ContextBeans describing(final ConfigurableApplicationContext context) {
          if (context == null) return null;
  
          final ConfigurableApplicationContext parent = SpringBeansService.getConfigurableParent(context);
          final Map<String, BeanDescriptor> beans = describeBeans(context);
          final String parentId = parent != null 
              ? parent.getId() 
              : null;
          return new ContextBeans(beans, parentId, context);
      }
  
      private static Map<String, BeanDescriptor> describeBeans(final ConfigurableApplicationContext context) {
          final ConfigurableListableBeanFactory beanFactory = context.getBeanFactory();
  
          final Map<String, BeanDescriptor> beans = Arrays.stream(beanFactory.getBeanDefinitionNames())
                  .filter(beanName -> isBeanEligible(beanName, beanFactory))
                  .collect(Collectors.toMap(Function.identity(), beanName -> BeanDescriptor.of(beanName, context)));
          return Collections.unmodifiableMap(beans);
      }
  
      private static boolean isBeanEligible(
              final String beanName,
              final ConfigurableListableBeanFactory bf) {
          final BeanDefinition bd = bf.getBeanDefinition(beanName);
          return bd.getRole() != BeanDefinition.ROLE_INFRASTRUCTURE 
              && (!bd.isLazyInit() || bf.containsSingleton(beanName));
      }
  }
  