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   *  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
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   *    https://www.apache.org/licenses/LICENSE-2.0
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  package org.apache.cayenne.project;
  
  import org.apache.cayenne.configuration.BaseConfigurationNodeVisitor;
  import org.apache.cayenne.configuration.ConfigurationNameMapper;
  import org.apache.cayenne.configuration.DataChannelDescriptor;
  import org.apache.cayenne.configuration.DataNodeDescriptor;
  import org.apache.cayenne.di.Inject;
  import org.apache.cayenne.map.DataMap;
  import org.apache.cayenne.resource.Resource;
  
  /**
   * Updates ConfigurationNode's configuration sources.
   *
   * @since 3.1
   */
  class ConfigurationSourceSetter extends BaseConfigurationNodeVisitor<Void> {
  
      private final ConfigurationNameMapper configurationNameMapper;
      private Resource configurationSource;
  
      public ConfigurationSourceSetter(@Inject ConfigurationNameMapper configurationNameMapper){
          this.configurationNameMapper = configurationNameMapper;
      }
  
  
      ConfigurationSourceSetter(Resource configurationSource, ConfigurationNameMapper configurationNameMapper) {
          this.configurationSource = configurationSource;
          this.configurationNameMapper = configurationNameMapper;
      }
  
      @Override
      public Void visitDataChannelDescriptor(DataChannelDescriptor node) {
          node.setConfigurationSource(configurationSource);
  
          // update child configurations
          for (DataNodeDescriptor childDescriptor : node.getNodeDescriptors()) {
              childDescriptor.setDataChannelDescriptor(node);
              childDescriptor.setConfigurationSource(configurationSource);
          }
          return null;
      }
  
      @Override
      public Void visitDataMap(DataMap node) {
          node.setConfigurationSource(configurationSource);
          updateLocationOf(node);
          return null;
      }
  
      private void updateLocationOf(DataMap node) {
          String dataMapLocation = getDatamapLocationByName(node.getName());
          node.setLocation(dataMapLocation);
      }
  
      private String getDatamapLocationByName(String name){
          return configurationNameMapper.configurationLocation(DataMap.class, name);
      }
  }
  