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# -*- coding: utf-8 -*-
""" pyKwalify - types.py """
# python stdlib
import re
import datetime
import re
from pykwalify.compat import basestring, bytes
DEFAULT_TYPE = "str"
class TextMeta(type):
def __instancecheck__(self, instance):
return is_text(instance)
class text(object):
__metaclass__ = TextMeta
_types = {
"str": str,
"int": int,
"float": float,
"number": None,
"bool": bool,
"map": dict,
"seq": list,
"timestamp": datetime.datetime,
"date": datetime.date,
"symbol": str,
"scalar": None,
"text": text,
"any": object,
"enum": str,
"none": None,
"email": str,
"url": str,
}
sequence_aliases = ["sequence", "seq"]
mapping_aliases = ["map", "mapping"]
def type_class(type):
return _types[type]
def is_builtin_type(type):
return type in _types
def is_collection_type(type):
return type.lower().strip() == "map" or type.lower().strip() == "seq"
def is_scalar_type(type):
return not is_collection_type(type)
def is_collection(obj):
return isinstance(obj, dict) or isinstance(obj, list)
def is_scalar(obj):
return not is_collection(obj) and obj is not None
def is_correct_type(obj, type):
return isinstance(obj, type)
def is_string(obj):
return isinstance(obj, basestring) or isinstance(obj, bytes)
def is_int(obj):
"""
True & False is not considered valid integers even if python considers them 1 & 0 in some versions
"""
return isinstance(obj, int) and not isinstance(obj, bool)
def is_bool(obj):
return isinstance(obj, bool)
def is_float(obj):
"""
Valid types are:
- objects of float type
- Strings that can be converted to float. For example '1e-06'
"""
is_f = isinstance(obj, float)
if not is_f:
try:
float(obj)
is_f = True
except (ValueError, TypeError):
is_f = False
return is_f and not is_bool(obj)
def is_number(obj):
return is_int(obj) or is_float(obj)
def is_text(obj):
return (is_string(obj) or is_number(obj)) and is_bool(obj) is False
def is_any(obj):
return True
def is_enum(obj):
return isinstance(obj, basestring)
def is_none(obj):
return obj is None
def is_sequence_alias(alias):
return alias in sequence_aliases
def is_mapping_alias(alias):
return alias in mapping_aliases
def is_timestamp(obj):
"""
Yaml either have automatically converted it to a datetime object
or it is a string that will be validated later.
"""
return isinstance(obj, datetime.datetime) or is_string(obj) or is_int(obj) or is_float(obj)
def is_date(obj):
"""
:param obj: Object that is to be validated
:return: True/False if obj is valid date object
"""
return isinstance(obj, basestring) or isinstance(obj, datetime.date)
def is_email(obj):
"""
"""
return re.match(r"(^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$)", obj)
def is_url(obj):
"""
:param obj: Object that is to be validated
:return: True/False if obj is valid
"""
return re.match(r'http[s]?://(?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*(),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+', obj)
tt = {
"str": is_string,
"int": is_int,
"bool": is_bool,
"float": is_float,
"number": is_number,
"text": is_text,
"any": is_any,
"enum": is_enum,
"none": is_none,
"timestamp": is_timestamp,
"scalar": is_scalar,
"date": is_date,
"email": is_email,
"url": is_url,
}
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