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.flink.connectors.kudu.connector.convertor;
  
  import org.apache.flink.table.data.*;
  import org.apache.kudu.Schema;
  import org.apache.kudu.Type;
  import org.apache.kudu.client.RowResult;
  
  import java.math.BigDecimal;
  import java.util.Objects;
  
  /**
   * Transform the Kudu RowResult object into a Flink RowData object
   */
  public class RowResultRowDataConvertor implements RowResultConvertor<RowData> {
      @Override
      public RowData convertor(RowResult row) {
          Schema schema = row.getColumnProjection();
          GenericRowData values = new GenericRowData(schema.getColumnCount());
          schema.getColumns().forEach(column -> {
              String name = column.getName();
              Type type = column.getType();
              int pos = schema.getColumnIndex(name);
              if (Objects.isNull(type)) {
                  throw new IllegalArgumentException("columnName:" + name);
              }
              if (row.isNull(name)){
                  return;
              }
              switch (type) {
                  case DECIMAL:
                      BigDecimal decimal = row.getDecimal(name);
                      values.setField(pos, DecimalData.fromBigDecimal(decimal, decimal.precision(), decimal.scale()));
                      break;
                  case UNIXTIME_MICROS:
                      values.setField(pos, TimestampData.fromTimestamp(row.getTimestamp(name)));
                      break;
                  case DOUBLE:
                      values.setField(pos, row.getDouble(name));
                      break;
                  case STRING:
                      Object value = row.getObject(name);
                      values.setField(pos, StringData.fromString(Objects.nonNull(value) ? value.toString() : ""));
                      break;
                  case BINARY:
                      values.setField(pos, row.getBinary(name));
                      break;
                  case FLOAT:
                      values.setField(pos, row.getFloat(name));
                      break;
                  case INT64:
                      values.setField(pos, row.getLong(name));
                      break;
                  case INT32:
                  case INT16:
                  case INT8:
                      values.setField(pos, row.getInt(name));
                      break;
                  case BOOL:
                      values.setField(pos, row.getBoolean(name));
                      break;
                  default:
                      throw new IllegalArgumentException("columnName:" + name + ",type:" + type.getName() + "not support!");
              }
          });
          return values;
      }
  }
  