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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.atlas.repository.converters;
  
  import org.apache.atlas.exception.AtlasBaseException;
  import org.apache.atlas.model.TypeCategory;
  import org.apache.atlas.model.instance.AtlasEntity;
  import org.apache.atlas.model.instance.AtlasEntity.AtlasEntitiesWithExtInfo;
  import org.apache.atlas.type.AtlasType;
  
  public interface AtlasFormatConverter {
      boolean isValidValueV1(Object v1Ob, AtlasType typej);
  
      Object fromV1ToV2(Object v1Obj, AtlasType type, ConverterContext context) throws AtlasBaseException;
  
      Object fromV2ToV1(Object v2Obj, AtlasType type, ConverterContext context) throws AtlasBaseException;
  
      TypeCategory getTypeCategory();
  
      class ConverterContext {
          private AtlasEntitiesWithExtInfo entities;
  
          public void addEntity(AtlasEntity entity) {
              if (entities == null) {
                  entities = new AtlasEntitiesWithExtInfo();
              }
  
              entities.addEntity(entity);
          }
  
          public void addReferredEntity(AtlasEntity entity) {
              if (entities == null) {
                  entities = new AtlasEntitiesWithExtInfo();
              }
  
              entities.addReferredEntity(entity);
          }
  
          public AtlasEntity getById(String guid) {
              if (entities != null) {
                  return entities.getEntity(guid);
              }
  
              return null;
          }
  
          public boolean entityExists(String guid) {
              return entities != null && entities.hasEntity(guid);
          }
  
          public AtlasEntitiesWithExtInfo getEntities() {
              if (entities != null) {
                  entities.compact();
              }
  
              return entities;
          }
      }
  }
  