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.AtlasErrorCode;
  import org.apache.atlas.exception.AtlasBaseException;
  import org.apache.atlas.model.TypeCategory;
  import org.apache.atlas.model.instance.AtlasClassification;
  import org.apache.atlas.type.AtlasClassificationType;
  import org.apache.atlas.type.AtlasType;
  import org.apache.atlas.type.AtlasTypeRegistry;
  import org.apache.atlas.v1.model.instance.Struct;
  import org.apache.commons.collections.MapUtils;
  
  import java.util.Map;
  
  public class AtlasClassificationFormatConverter extends AtlasStructFormatConverter {
      public AtlasClassificationFormatConverter(AtlasFormatConverters registry, AtlasTypeRegistry typeRegistry) {
          super(registry, typeRegistry, TypeCategory.CLASSIFICATION);
      }
  
      @Override
      public AtlasClassification fromV1ToV2(Object v1Obj, AtlasType type, ConverterContext ctx) throws AtlasBaseException {
          AtlasClassification ret = null;
  
          if (v1Obj != null) {
              AtlasClassificationType classificationType = (AtlasClassificationType) type;
  
              if (v1Obj instanceof Map) {
                  final Map<String, Object> v1Map     = (Map<String, Object>) v1Obj;
                  final Map<String, Object> v1Attribs = (Map<String, Object>) v1Map.get(ATTRIBUTES_PROPERTY_KEY);
  
                  if (MapUtils.isNotEmpty(v1Attribs)) {
                      ret = new AtlasClassification(type.getTypeName(), fromV1ToV2(classificationType, v1Attribs, ctx));
                  } else {
                      ret = new AtlasClassification(type.getTypeName());
                  }
              } else if (v1Obj instanceof Struct) {
                  Struct struct = (Struct) v1Obj;
  
                  ret = new AtlasClassification(type.getTypeName(), fromV1ToV2(classificationType, struct.getValues(), ctx));
              } else {
                  throw new AtlasBaseException(AtlasErrorCode.UNEXPECTED_TYPE, "Map or Struct",
                          v1Obj.getClass().getCanonicalName());
              }
          }
  
          return ret;
      }
  }
  