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# -*- coding: utf-8 -*- |
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from __future__ import unicode_literals |
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from builtins import int |
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from abc import ABCMeta, abstractproperty |
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from six import with_metaclass, string_types |
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from .definitions import Enum, APIArgumentSerializer |
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class StringSerializer(APIArgumentSerializer): |
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def to_api(self, python_value): |
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if not isinstance(python_value, string_types): |
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raise ValueError('Invalid value. Expects str or unicode.') |
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return python_value |
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def to_python(self, api_value): |
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if not isinstance(api_value, string_types): |
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raise ValueError('Invalid value. Expects str or unicode.') |
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return api_value |
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class IntegerSerializer(APIArgumentSerializer): |
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def to_api(self, python_value): |
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if not isinstance(python_value, int): |
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raise ValueError('Invalid value. Expects int or long.') |
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return str(python_value) |
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def to_python(self, api_value): |
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return int(api_value) |
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class PositiveIntegerSerializer(IntegerSerializer): |
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def to_api(self, python_value): |
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if not isinstance(python_value, int) or python_value < 0: |
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raise ValueError('Invalid value. Expects positive int or long.') |
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return super(PositiveIntegerSerializer, self).to_api(python_value) |
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def to_python(self, api_value): |
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result = super(PositiveIntegerSerializer, self).to_python(api_value) |
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if result < 0: |
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raise ValueError('Invalid value. Expects positive int or long.') |
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return result |
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class BooleanSerializer(APIArgumentSerializer): |
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def to_api(self, python_value): |
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if not isinstance(python_value, bool): |
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raise ValueError('Invalid value. Expects bool.') |
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return 'true' if python_value else 'false' |
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def to_python(self, api_value): |
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if api_value not in ('true', 'false'): |
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raise ValueError('Invalid value. Expects true|false.') |
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return api_value == 'true' |
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class EnumSerializer(with_metaclass(ABCMeta, StringSerializer)): |
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@abstractproperty |
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def enum_class(self): # pragma: no cover |
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pass |
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def to_api(self, python_value): |
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assert issubclass(self.enum_class, Enum) |
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if isinstance(python_value, self.enum_class): |
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return python_value.name |
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elif isinstance(python_value, string_types): |
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return python_value |
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elif isinstance(python_value, int): |
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return self.enum_class.get_by_value(python_value).name |
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raise ValueError('Invalid value for enum %s: %s' % (self.enum_class, python_value)) |
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def to_python(self, api_value): |
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assert issubclass(self.enum_class, Enum) |
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if not isinstance(api_value, string_types): |
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raise ValueError('Invalid value. Expects str or unicode') |
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result = self.enum_class.get_by_name(api_value) |
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if result is None: |
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raise ValueError('Invalid value. Expects enum value for %s.' % self.enum_class) |
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return result |
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dirkmoors /
pyejabberd
