Source file mp_data_simple.ml
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let split_date_string v =
let t = Array.make 3 "" in
let i = ref 0 in
let f c =
match c with
| '0'..'9' ->
t.(!i) <- t.(!i) ^ (String.make 1 c)
| '-' ->
incr i
| _ ->
assert false
in
let () = String.iter f v in
let default i e =
if (e = "") then t.(i) <- "0"
in
let () = Array.iteri default t in
t
let split_time_string v =
let t = Array.make 4 "" in
let i = ref 0 in
let sign = ref Mp_data.Positive in
let f c =
match c with
| '-' ->
sign := Mp_data.Negative
| '0'..'9' ->
t.(!i) <- t.(!i) ^ (String.make 1 c)
| ':' | '.' ->
incr i
| _ ->
assert false
in
let () = String.iter f v in
let default i e =
if (e = "") then t.(i) <- "0"
in
let () = Array.iteri default t in
(!sign, t)
let split_datetime_string v =
let sep = String.index v ' ' in
let part_date = String.sub v 0 sep in
let part_time = String.sub v (sep + 1) ((String.length v) - (String.length part_date) - 1) in
let split_date = split_date_string part_date in
let (_, split_time) = split_time_string part_time in
(split_date, split_time)
let data_value_to_sql_value v field =
let field_type = field.Mp_field_packet.field_type in
let field_flags = field.Mp_field_packet.field_flags in
match field_type with
| Mp_field_packet.Field_type_decimal -> (
Mp_data.data_decimal (Num.num_of_string v)
)
| Mp_field_packet.Field_type_tiny -> (
Mp_data.data_tinyint (int_of_string v)
)
| Mp_field_packet.Field_type_short -> (
Mp_data.data_smallint (int_of_string v)
)
| Mp_field_packet.Field_type_long -> (
Mp_data.data_longint (Int64.of_string v)
)
| Mp_field_packet.Field_type_float -> (
Mp_data.data_float (float_of_string v)
)
| Mp_field_packet.Field_type_double -> (
Mp_data.data_double (float_of_string v)
)
| Mp_field_packet.Field_type_null -> (
Mp_data.data_null
)
| Mp_field_packet.Field_type_longlong -> (
Mp_data.data_longlongint (Big_int.big_int_of_string v)
)
| Mp_field_packet.Field_type_int24 -> (
Mp_data.data_int24 (int_of_string v)
)
| Mp_field_packet.Field_type_date
| Mp_field_packet.Field_type_newdate -> (
let split = split_date_string v in
let part_year = int_of_string (split.(0)) in
let part_month = int_of_string (split.(1)) in
let part_day = int_of_string (split.(2)) in
Mp_data.data_date (part_year, part_month, part_day)
)
| Mp_field_packet.Field_type_time -> (
let (sign, split) = split_time_string v in
let part_hour = int_of_string(split.(0)) in
let part_min = int_of_string(split.(1)) in
let part_sec = int_of_string(split.(2)) in
let part_subsec = Int64.of_string (split.(3)) in
Mp_data.data_time (sign, part_hour, part_min, part_sec, part_subsec)
)
| Mp_field_packet.Field_type_datetime
| Mp_field_packet.Field_type_timestamp -> (
let (split_date, split_time) = split_datetime_string v in
let part_year = int_of_string (split_date.(0)) in
let part_month = int_of_string (split_date.(1)) in
let part_day = int_of_string (split_date.(2)) in
let part_hour = int_of_string (split_time.(0)) in
let part_min = int_of_string (split_time.(1)) in
let part_sec = int_of_string (split_time.(2)) in
let part_subsec = Int64.of_string (split_time.(3)) in
match field_type with
| Mp_field_packet.Field_type_datetime -> (
Mp_data.data_datetime ((part_year, part_month, part_day), (part_hour, part_min, part_sec, part_subsec))
)
| Mp_field_packet.Field_type_timestamp -> (
Mp_data.data_timestamp ((part_year, part_month, part_day), (part_hour, part_min, part_sec, part_subsec))
)
| _ -> assert false
)
| Mp_field_packet.Field_type_year -> (
Mp_data.data_year (int_of_string v)
)
| Mp_field_packet.Field_type_varchar -> (
Mp_data.data_varchar v
)
| Mp_field_packet.Field_type_bit -> (
Mp_data.data_bit (Bitstring.bitstring_of_string v)
)
| Mp_field_packet.Field_type_newdecimal -> (
let decimals = field.Mp_field_packet.field_decimals in
let length = String.length v in
let part_i_s = String.sub v 0 (length - 1 - decimals) in
let part_d_s = String.sub v (length - decimals) decimals in
let i = part_i_s ^ part_d_s in
let i = Big_int.big_int_of_string i in
let i = Num.num_of_big_int i in
let div = Big_int.power_int_positive_int 10 decimals in
let div = Num.num_of_big_int div in
Mp_data.data_decimal (Num.div_num i div)
)
| Mp_field_packet.Field_type_enum -> Mp_data.data_enum v
| Mp_field_packet.Field_type_set -> Mp_data.data_set v
| Mp_field_packet.Field_type_tiny_blob
| Mp_field_packet.Field_type_medium_blob
| Mp_field_packet.Field_type_long_blob
| Mp_field_packet.Field_type_blob -> (
let b = Buffer.create (String.length v) in
let () = Buffer.add_string b v in
Mp_data.data_blob b
)
| Mp_field_packet.Field_type_var_string -> (
if (List.mem Mp_field_packet.Field_flag_binary field_flags) then
let b = Buffer.create (String.length v) in
let () = Buffer.add_string b v in
Mp_data.data_varbinary b
else
Mp_data.data_varstring v
)
| Mp_field_packet.Field_type_string -> (
if (List.mem Mp_field_packet.Field_flag_enum field_flags) then
Mp_data.data_enum v
else if (List.mem Mp_field_packet.Field_flag_set field_flags) then
Mp_data.data_set v
else if (List.mem Mp_field_packet.Field_flag_binary field_flags) then
let b = Buffer.create (String.length v) in
let () = Buffer.add_string b v in
Mp_data.data_binary b
else
Mp_data.data_string v
)
| Mp_field_packet.Field_type_geometry -> (
Mp_data.data_geometry (Bitstring.bitstring_of_string v)
)