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
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * 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.carbondata.hive;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.carbondata.core.metadata.datatype.DataTypes;
  import org.apache.carbondata.core.metadata.datatype.DecimalType;
  import org.apache.carbondata.core.metadata.schema.table.column.CarbonColumn;
  import org.apache.carbondata.core.metadata.schema.table.column.CarbonDimension;
  
  import org.apache.hadoop.hive.serde2.typeinfo.DecimalTypeInfo;
  import org.apache.hadoop.hive.serde2.typeinfo.ListTypeInfo;
  import org.apache.hadoop.hive.serde2.typeinfo.MapTypeInfo;
  import org.apache.hadoop.hive.serde2.typeinfo.StructTypeInfo;
  import org.apache.hadoop.hive.serde2.typeinfo.TypeInfo;
  import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory;
  
  public class HiveDataTypeUtils {
  
    public static TypeInfo convertCarbonDataTypeToHive(CarbonColumn column) {
      int id = column.getDataType().getId();
      if (id == DataTypes.STRING.getId()) {
        return TypeInfoFactory.stringTypeInfo;
      } else if (id == DataTypes.DATE.getId()) {
        return TypeInfoFactory.dateTypeInfo;
      } else if (id == DataTypes.TIMESTAMP.getId()) {
        return TypeInfoFactory.timestampTypeInfo;
      } else if (id == DataTypes.BOOLEAN.getId()) {
        return TypeInfoFactory.booleanTypeInfo;
      } else if (id == DataTypes.BYTE.getId()) {
        return TypeInfoFactory.byteTypeInfo;
      } else if (id == DataTypes.SHORT.getId()) {
        return TypeInfoFactory.shortTypeInfo;
      } else if (id == DataTypes.INT.getId()) {
        return TypeInfoFactory.intTypeInfo;
      } else if (id == DataTypes.LONG.getId()) {
        return TypeInfoFactory.longTypeInfo;
      } else if (id == DataTypes.FLOAT.getId()) {
        return TypeInfoFactory.floatTypeInfo;
      } else if (id == DataTypes.DOUBLE.getId()) {
        return TypeInfoFactory.doubleTypeInfo;
      } else if (id == DataTypes.DECIMAL_TYPE_ID) {
        DecimalType type = (DecimalType) column.getDataType();
        return new DecimalTypeInfo(type.getPrecision(), type.getScale());
      } else if (id == DataTypes.BINARY.getId()) {
        return TypeInfoFactory.binaryTypeInfo;
      } else if (id == DataTypes.ARRAY_TYPE_ID) {
        ListTypeInfo typeInfo = new ListTypeInfo();
        if (!(column instanceof CarbonDimension)) {
          throw new RuntimeException(
              "Failed to get child columns of column: " + column.getColName());
        }
        typeInfo.setListElementTypeInfo(
            convertCarbonDataTypeToHive(
                ((CarbonDimension) column).getListOfChildDimensions().get(0)
            )
        );
        return typeInfo;
      } else if (id == DataTypes.STRUCT_TYPE_ID) {
        StructTypeInfo typeInfo = new StructTypeInfo();
        if (!(column instanceof CarbonDimension)) {
          throw new RuntimeException(
              "Failed to get child columns of column: " + column.getColName());
        }
        List<CarbonDimension> listOfChildDimensions =
            ((CarbonDimension) column).getListOfChildDimensions();
        ArrayList<String> allStructFieldNames = new ArrayList<>(listOfChildDimensions.size());
        ArrayList<TypeInfo> allStructFieldTypeInfos = new ArrayList<>(listOfChildDimensions.size());
        typeInfo.setAllStructFieldNames(allStructFieldNames);
        typeInfo.setAllStructFieldTypeInfos(allStructFieldTypeInfos);
        for (CarbonDimension dimension : listOfChildDimensions) {
          String[] columnsNames = dimension.getColName().split("\\.");
          allStructFieldNames.add(columnsNames[columnsNames.length - 1]);
          allStructFieldTypeInfos.add(convertCarbonDataTypeToHive(dimension));
        }
        return typeInfo;
      } else if (id == DataTypes.MAP_TYPE_ID) {
        MapTypeInfo typeInfo = new MapTypeInfo();
        List<CarbonDimension> listOfChildDimensions = ((CarbonDimension) column)
            .getListOfChildDimensions()
            .get(0)
            .getListOfChildDimensions();
        typeInfo.setMapKeyTypeInfo(convertCarbonDataTypeToHive(listOfChildDimensions.get(0)));
        typeInfo.setMapValueTypeInfo(convertCarbonDataTypeToHive(listOfChildDimensions.get(1)));
        return typeInfo;
      } else if (id == DataTypes.VARCHAR.getId()) {
        return TypeInfoFactory.varcharTypeInfo;
      } else {
        throw new RuntimeException("convert DataType with invalid id: " + id);
      }
    }
  }
  