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.store.graph.v2;
  
  import org.apache.atlas.entitytransform.BaseEntityHandler;
  import org.apache.atlas.exception.AtlasBaseException;
  import org.apache.atlas.model.impexp.AtlasExportResult;
  import org.apache.atlas.model.instance.AtlasEntity;
  import org.apache.atlas.model.instance.AtlasEntity.AtlasEntityWithExtInfo;
  import org.apache.atlas.model.typedef.AtlasTypesDef;
  import org.apache.atlas.repository.impexp.ImportTransforms;
  
  import java.util.List;
  
  public class AtlasEntityStreamForImport extends AtlasEntityStream implements EntityImportStream {
      private int currentPosition;
  
      public AtlasEntityStreamForImport(AtlasEntityWithExtInfo entityWithExtInfo, EntityStream entityStream) {
          super(entityWithExtInfo, entityStream);
      }
  
      @Override
      public AtlasEntity getByGuid(String guid) {
          AtlasEntity ent = super.entitiesWithExtInfo.getEntity(guid);
  
          if (ent == null && entityStream != null) {
              return entityStream.getByGuid(guid);
          }
  
          return ent;
      }
  
      @Override
      public int size() {
          return 1;
      }
  
      @Override
      public int getPosition() {
          return currentPosition;
      }
  
      @Override
      public void setPosition(int position) {
          // not applicable for a single entity stream
      }
  
      @Override
      public void setPositionUsingEntityGuid(String guid) {
      }
  
      @Override
      public AtlasEntityWithExtInfo getNextEntityWithExtInfo() {
          currentPosition++;
  
          AtlasEntity entity = next();
  
          return entity != null ? new AtlasEntityWithExtInfo(entity, super.entitiesWithExtInfo) : null;
      }
  
      @Override
      public AtlasEntityWithExtInfo getEntityWithExtInfo(String guid) {
          return null;
      }
  
      @Override
      public void onImportComplete(String guid) {
      }
  
      @Override
      public ImportTransforms getImportTransform() {
          return null;
      }
  
      @Override
      public void setImportTransform(ImportTransforms importTransform) {
      }
  
      @Override
      public List<BaseEntityHandler> getEntityHandlers() {
          return null;
      }
  
      @Override
      public void setEntityHandlers(List<BaseEntityHandler> entityHandlers) {
      }
  
      @Override
      public AtlasTypesDef getTypesDef() throws AtlasBaseException {
          return null;
      }
  
      @Override
      public AtlasExportResult getExportResult() throws AtlasBaseException {
          return null;
      }
  
      @Override
      public List<String> getCreationOrder() {
          return null;
      }
  
      @Override
      public void close() {
      }
  
      @Override
      public String getMd5Hash() {
          return null;
      }
  }
  