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import datetime
import decimal
import re
import warnings
from fints.types import Container, SegmentSequence, TypedField
from fints.utils import (
DocTypeMixin, FieldRenderFormatStringMixin, FixedLengthMixin, Password,
)
class DataElementField(DocTypeMixin, TypedField):
pass
class ContainerField(TypedField):
def _check_value(self, value):
if self.type:
if not isinstance(value, self.type):
raise TypeError("Value {!r} is not of type {!r}".format(value, self.type))
super()._check_value(value)
def _default_value(self):
return self.type()
class DataElementGroupField(DocTypeMixin, ContainerField):
pass
class GenericField(FieldRenderFormatStringMixin, DataElementField):
type = None
_FORMAT_STRING = "{}"
def _parse_value(self, value):
warnings.warn("Generic field used for type {!r} value {!r}".format(self.type, value))
return value
class GenericGroupField(DataElementGroupField):
type = None
def _default_value(self):
if self.type is None:
return Container()
else:
return self.type()
def _parse_value(self, value):
if self.type is None:
warnings.warn("Generic field used for type {!r} value {!r}".format(self.type, value))
return value
class TextField(FieldRenderFormatStringMixin, DataElementField):
type = 'txt'
_DOC_TYPE = str
_FORMAT_STRING = "{}" # FIXME Restrict CRLF
def _parse_value(self, value): return str(value)
class AlphanumericField(TextField):
type = 'an'
class DTAUSField(DataElementField):
type = 'dta'
class NumericField(FieldRenderFormatStringMixin, DataElementField):
type = 'num'
_DOC_TYPE = int
_FORMAT_STRING = "{:d}"
def _parse_value(self, value):
_value = str(value)
if len(_value) > 1 and _value[0] == '0':
raise ValueError("Leading zeroes not allowed for value of type 'num': {!r}".format(value))
return int(_value, 10)
class ZeroPaddedNumericField(NumericField):
type = ''
_DOC_TYPE = int
def __init__(self, *args, **kwargs):
if not kwargs.get('length', None):
raise ValueError("ZeroPaddedNumericField needs length argument")
super().__init__(*args, **kwargs)
@property
def _FORMAT_STRING(self):
return "{:0" + str(self.length) + "d}"
def _parse_value(self, value):
_value = str(value)
return int(_value, 10)
class DigitsField(FieldRenderFormatStringMixin, DataElementField):
type = 'dig'
_DOC_TYPE = str
_FORMAT_STRING = "{}"
def _parse_value(self, value):
_value = str(value)
if not re.match(r'^\d*$', _value):
raise TypeError("Only digits allowed for value of type 'dig': {!r}".format(value))
return _value
class FloatField(DataElementField):
type = 'float'
_DOC_TYPE = float
_FORMAT_STRING = "{:.12f}" # Warning: Python's float is not exact!
# FIXME: Needs test
def _parse_value(self, value):
if isinstance(value, float):
return value
if isinstance(value, decimal.Decimal):
value = str(value.normalize()).replace(".", ",")
_value = str(value)
if not re.match(r'^(?:0|[1-9]\d*),(?:\d*[1-9]|)$', _value):
raise TypeError("Only digits and ',' allowed for value of type 'float', no superfluous leading or trailing zeroes allowed: {!r}".format(value))
return float(_value.replace(",", "."))
def _render_value(self, value):
retval = self._FORMAT_STRING.format(value)
retval = retval.replace('.', ',').rstrip('0')
self._check_value_length(retval)
return retval
class AmountField(FixedLengthMixin, DataElementField):
type = 'wrt'
_DOC_TYPE = decimal.Decimal
_FIXED_LENGTH = [None, None, 15]
# FIXME Needs test
def _parse_value(self, value):
if isinstance(value, float):
return value
if isinstance(value, decimal.Decimal):
return value
_value = str(value)
if not re.match(r'^(?:0|[1-9]\d*)(?:,)?(?:\d*[1-9]|)$', _value):
raise TypeError("Only digits and ',' allowed for value of type 'decimal', no superfluous leading or trailing zeroes allowed: {!r}".format(value))
return decimal.Decimal(_value.replace(",", "."))
def _render_value(self, value):
retval = str(value)
retval = retval.replace('.', ',').rstrip('0')
self._check_value_length(retval)
return retval
class BinaryField(DataElementField):
type = 'bin'
_DOC_TYPE = bytes
def _render_value(self, value):
retval = bytes(value)
self._check_value_length(retval)
return retval
def _parse_value(self, value): return bytes(value)
class IDField(FixedLengthMixin, AlphanumericField):
type = 'id'
_DOC_TYPE = str
_FIXED_LENGTH = [None, None, 30]
class BooleanField(FixedLengthMixin, AlphanumericField):
type = 'jn'
_DOC_TYPE = bool
_FIXED_LENGTH = [1]
def _render_value(self, value):
return "J" if value else "N"
def _parse_value(self, value):
if value is None:
return None
if value == "J" or value is True:
return True
elif value == "N" or value is False:
return False
else:
raise ValueError("Invalid value {!r} for BooleanField".format(value))
class CodeFieldMixin:
# FIXME Need tests
def __init__(self, enum=None, *args, **kwargs):
if enum:
self._DOC_TYPE = enum
self._enum = enum
else:
self._enum = None
super().__init__(*args, **kwargs)
def _parse_value(self, value):
retval = super()._parse_value(value)
if self._enum:
retval = self._enum(retval)
return retval
def _render_value(self, value):
retval = value
if self._enum:
retval = str(value.value)
return super()._render_value(retval)
def _inline_doc_comment(self, value):
retval = super()._inline_doc_comment(value)
if self._enum:
addendum = value.__doc__
if addendum and addendum is not value.__class__.__doc__:
if not retval:
retval = " # "
else:
retval = retval + ": "
retval = retval + addendum
return retval
class CodeField(CodeFieldMixin, AlphanumericField):
type = 'code'
_DOC_TYPE = str
class IntCodeField(CodeFieldMixin, NumericField):
type = ''
_DOC_TYPE = int
_FORMAT_STRING = "{}"
class CountryField(FixedLengthMixin, DigitsField):
type = 'ctr'
_FIXED_LENGTH = [3]
class CurrencyField(FixedLengthMixin, AlphanumericField):
type = 'cur'
_FIXED_LENGTH = [3]
class DateField(FixedLengthMixin, NumericField):
type = 'dat' # FIXME Need test
_DOC_TYPE = datetime.date
_FIXED_LENGTH = [8]
def _parse_value(self, value):
if isinstance(value, datetime.date):
return value
val = super()._parse_value(value)
val = str(val)
return datetime.date(int(val[0:4]), int(val[4:6]), int(val[6:8]))
def _render_value(self, value):
val = "{:04d}{:02d}{:02d}".format(value.year, value.month, value.day)
val = int(val)
return super()._render_value(val)
class TimeField(FixedLengthMixin, DigitsField):
type = 'tim' # FIXME Need test
_DOC_TYPE = datetime.time
_FIXED_LENGTH = [6]
def _parse_value(self, value):
if isinstance(value, datetime.time):
return value
val = super()._parse_value(value)
return datetime.time(int(val[0:2]), int(val[2:4]), int(val[4:6]))
def _render_value(self, value):
val = "{:02d}{:02d}{:02d}".format(value.hour, value.minute, value.second)
return super()._render_value(val)
class PasswordField(AlphanumericField):
type = ''
_DOC_TYPE = Password
def _parse_value(self, value):
return Password(value)
def _render_value(self, value):
return str(value)
class SegmentSequenceField(DataElementField):
type = 'sf'
def _parse_value(self, value):
if isinstance(value, SegmentSequence):
return value
else:
return SegmentSequence(value)
def _render_value(self, value):
return value.render_bytes()
|
