Java Code Examples for org.apache.calcite.runtime.SqlFunctions#toLong()

/**
 * convert the  result of a hive function to the right java object
 *
 * @param objectInspector the outObjectInspector inferred by a hive
 *                        function
 * @param value           the result hive object evaluated by a hive function
 * @return converted calcite object result
 */
public static Object convertHiveObject2CalciteObject(
    ObjectInspector objectInspector,
    Object value) {
  if (value == null) {
    return null;
  }
  if (objectInspector instanceof HiveDecimalObjectInspector) {
    return ((HiveDecimalObjectInspector) objectInspector)
        .getPrimitiveJavaObject(
            value).bigDecimalValue();
  }
  if (objectInspector instanceof DoubleObjectInspector) {
    return ((DoubleObjectInspector) objectInspector).get(value);
  }
  if (objectInspector instanceof IntObjectInspector) {
    return ((IntObjectInspector) objectInspector).get(value);
  }
  if (objectInspector instanceof LongObjectInspector) {
    return ((LongObjectInspector) objectInspector).get(value);
  }
  if (objectInspector instanceof FloatObjectInspector) {
    return ((FloatObjectInspector) objectInspector).get(value);
  }
  if (objectInspector instanceof ShortObjectInspector) {
    return ((ShortObjectInspector) objectInspector).get(value);
  }
  if (objectInspector instanceof StringObjectInspector) {
    return ((StringObjectInspector) objectInspector).getPrimitiveJavaObject(
        value);
  }
  if (objectInspector instanceof BooleanObjectInspector) {
    return ((BooleanObjectInspector) objectInspector).getPrimitiveJavaObject(
        value);
  }
  if (objectInspector instanceof DateObjectInspector) {
    Date date = ((DateObjectInspector) objectInspector)
        .getPrimitiveJavaObject(
            value);
    return SqlFunctions.toInt(date, TimeZone.getTimeZone("UTC"));
  }
  if (objectInspector instanceof TimestampObjectInspector) {
    Timestamp timestamp = ((TimestampObjectInspector) objectInspector)
        .getPrimitiveJavaObject(
            value);
    return SqlFunctions.toLong(timestamp, TimeZone.getTimeZone("UTC"));
  }
  if (objectInspector instanceof StandardListObjectInspector) {
    StandardListObjectInspector standardListObjectInspector =
        (StandardListObjectInspector) objectInspector;
    List<?> list = standardListObjectInspector.getList(value);
    if (list == null) {
      return null;
    }
    ObjectInspector listElementObjectInspector =
        standardListObjectInspector.getListElementObjectInspector();
    List<Object> convertedList = new ArrayList<>();
    for (Object hiveObject : list) {
      convertedList.add(
          convertHiveObject2CalciteObject(listElementObjectInspector,
              hiveObject));
    }
    return convertedList;
  }
  throw new UnsupportedOperationException(
      "fail to convertHiveObject2CalciteObject ,objectInspector="
          + objectInspector
          + ",value="
          + value);
}
 

public static Long toLong(Object value) {
  if (value == null) {
    return null;
  }
  return SqlFunctions.toLong(value);
}
 

public static long dateFun(java.sql.Date v) {
  return v == null ? -1L : SqlFunctions.toLong(v);
}
 

public static long timestampFun(java.sql.Timestamp v) {
  return v == null ? -1L : SqlFunctions.toLong(v);
}
 

public static long timeFun(java.sql.Time v) {
  return v == null ? -1L : SqlFunctions.toLong(v);
}
 

/** Overloaded functions with DATE, TIMESTAMP and TIME arguments. */
public static long toLong(Date date) {
  return date == null ? 0 : SqlFunctions.toLong(date);
}
 

public static long toLong(Timestamp timestamp) {
  return timestamp == null ? 0 : SqlFunctions.toLong(timestamp);
}
 

public static long toLong(Time time) {
  return time == null ? 0 : SqlFunctions.toLong(time);
}