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   *  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
   *
   *    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.ConfigurationNode;
  import org.apache.cayenne.configuration.ConfigurationNodeVisitor;
  import org.apache.cayenne.configuration.DataNodeDescriptor;
  import org.apache.cayenne.map.DataMap;
  import org.apache.cayenne.map.DbAttribute;
  import org.apache.cayenne.map.DbEntity;
  import org.apache.cayenne.map.DbRelationship;
  import org.apache.cayenne.map.Embeddable;
  import org.apache.cayenne.map.EmbeddableAttribute;
  import org.apache.cayenne.map.ObjAttribute;
  import org.apache.cayenne.map.ObjEntity;
  import org.apache.cayenne.map.ObjRelationship;
  import org.apache.cayenne.map.Procedure;
  import org.apache.cayenne.map.ProcedureParameter;
  import org.apache.cayenne.map.QueryDescriptor;
  
  public class DefaultConfigurationNodeParentGetter implements ConfigurationNodeParentGetter {
  
      private ConfigurationNodeVisitor<ConfigurationNode> parentGetter;
  
      public DefaultConfigurationNodeParentGetter() {
          parentGetter = new ParentGetter();
      }
  
      public ConfigurationNode getParent(ConfigurationNode node) {
          return node.acceptVisitor(parentGetter);
      }
  
      class ParentGetter extends BaseConfigurationNodeVisitor<ConfigurationNode> {
  
          @Override
          public ConfigurationNode visitDataMap(DataMap dataMap) {
              return dataMap.getDataChannelDescriptor();
          }
  
          @Override
          public ConfigurationNode visitDataNodeDescriptor(DataNodeDescriptor nodeDescriptor) {
              return nodeDescriptor.getDataChannelDescriptor();
          }
  
          @Override
          public ConfigurationNode visitDbAttribute(DbAttribute attribute) {
              return (ConfigurationNode) attribute.getParent();
          }
  
          @Override
          public ConfigurationNode visitDbEntity(DbEntity entity) {
              return entity.getDataMap();
          }
  
          @Override
          public ConfigurationNode visitDbRelationship(DbRelationship relationship) {
              return (ConfigurationNode) relationship.getParent();
          }
  
          @Override
          public ConfigurationNode visitEmbeddable(Embeddable embeddable) {
              return embeddable.getDataMap();
          }
  
          @Override
          public ConfigurationNode visitEmbeddableAttribute(EmbeddableAttribute attribute) {
              return attribute.getEmbeddable();
          }
  
          @Override
          public ConfigurationNode visitObjAttribute(ObjAttribute attribute) {
              return (ConfigurationNode) attribute.getParent();
          }
  
          @Override
          public ConfigurationNode visitObjEntity(ObjEntity entity) {
              return (ConfigurationNode) entity.getParent();
          }
  
          @Override
          public ConfigurationNode visitObjRelationship(ObjRelationship relationship) {
              return (ConfigurationNode) relationship.getParent();
          }
  
          @Override
          public ConfigurationNode visitProcedure(Procedure procedure) {
              return (ConfigurationNode) procedure.getParent();
          }
  
          @Override
          public ConfigurationNode visitProcedureParameter(ProcedureParameter parameter) {
              return (ConfigurationNode) parameter.getParent();
          }
  
          @Override
          public ConfigurationNode visitQuery(QueryDescriptor query) {
              return query.getDataMap();
          }
      }
  }
  