jsons.exceptions.SignatureMismatchError.__init__() - Code Metrics - Inspection of "Merge pull request #54 from ramonhagenaars/Release..." - ramonhagenaars/jsons - Measure and Improve Code Quality continuously with Scrutinizer

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by Ramon

created 2019-04-26 06:41 UTC

jsons.exceptions.SignatureMismatchError.init() A

↳ Parent: jsons.exceptions

Complexity

Conditions

Size

Total Lines	14
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	7
dl	0
loc	14
rs	10
c	0
b	0
f	0
cc	1
nop	5

"""
Contains the classes that may be raised by jsons.
"""
from json import JSONDecodeError
from typing import Optional


class JsonsError(Exception):
    """
    Base class for all `jsons` errors.
    """
    def __init__(self, message: str):
        """
        Constructor.
        :param message: the message describing the problem.
        """
        Exception.__init__(self, message)
        self._message = message

    @property
    def message(self):
        return self._message


class ArgumentError(JsonsError, ValueError):
    """
    Raised when serialization or deserialization went wrong caused by a wrong
    argument when serializing or deserializing.
    """
    def __init__(self, message: str, argument: str):
        """
        Constructor.
        :param message: the message describing the problem.
        :param argument: the name of the argument in question.
        """
        JsonsError.__init__(self, message)
        ValueError.__init__(self, message)
        self._argument = argument

    @property
    def argument(self) -> str:
        """
        The argument in question.
        :return: the name of the argument.
        """
        return self._argument


class DeserializationError(JsonsError):
    """
    Raised when deserialization failed for some reason.
    """
    def __init__(self, message: str, source: object, target: Optional[type]):
        """
        Constructor.
        :param message: the message describing the problem.
        :param source: the object that was to be deserialized.
        :param target: the type to which `source` was to be deserialized.
        """
        JsonsError.__init__(self, message)
        self._source = source
        self._target = target

    @property
    def source(self) -> object:
        """
        The object that was to be deserialized.
        :return: the object that was to be deserialized.
        """
        return self._source

    @property
    def target(self) -> Optional[type]:
        """
        The target type to which `source` was to be deserialized.
        :return: the type to which `source` was to be deserialized.
        """
        return self._target


class SerializationError(JsonsError):
    """
    Raised when serialization failed for some reason.
    """


class RecursionDetectedError(SerializationError):
    """
    Raised when a recursive structure was detected and a stack overflow was
    prevented during serialization.
    """


class DecodeError(DeserializationError, JSONDecodeError):
    """
    Raised when decoding a string or bytes to Python types failed. This error
    is actually a wrapper around `json.JSONDecodeError`.
    """
    def __init__(self, message: str, source: object, target: type,
                 error: JSONDecodeError):
        """
        Constructor.
        :param message: the message of this error.
        :param source: the object that was to be deserialized.
        :param target: the type to which `source` was to be deserialized.
        :param error: the wrapped `JSONDecodeError`.
        """
        DeserializationError.__init__(self, message, source, target)
        JSONDecodeError.__init__(self, message, error.doc, error.pos)


class UnfulfilledArgumentError(DeserializationError, ArgumentError):
    """
    Raised on a deserialization failure when an argument could not be fulfilled
    by the given object attr_getter.
    """
    def __init__(self,
                 message: str,
                 argument: str,
                 source: object,
                 target: type):
        """
        Constructor.
        :param message: the message of this error.
        :param argument: the argument that was unfulfilled.
        :param source: the object that was to be deserialized.
        :param target: the type to which `source` was to be deserialized.
        """
        DeserializationError.__init__(self, message, source, target)
        ArgumentError.__init__(self, message, argument)


class SignatureMismatchError(DeserializationError, ArgumentError):
    """
    Raised when the source could not be deserialized into the target type due
    to a mismatch between the source's attributes and the target's accepted
    parameters. This error is raised in "strict-mode" only.
    """
    def __init__(self,
                 message: str,
                 argument: str,
                 source: object,
                 target: type):
        """
        Constructor.
        :param message: the message of this error.
        :param argument: the argument that caused the problem.
        :param source: the object that was to be deserialized.
        :param target: the type to which `source` was to be deserialized.
        """
        DeserializationError.__init__(self, message, source, target)
        ArgumentError.__init__(self, message, argument)


class UnknownClassError(DeserializationError):
    """
    Raised when jsons failed to find a type instance to deserialize to. If this
    error occurs, consider using ``jsons.announce_class``.
    """
    def __init__(self, message: str, source: object, target_name: str):
        """
        Constructor.
        :param message: the message of this error.
        :param source: the object that was to be deserialized.
        :param target_name: the name of the type that was the target type.
        """
        DeserializationError.__init__(self, message, source, None)
        self._target_name = target_name

    @property
    def target_name(self) -> str:
        """
        The name of the type that was unsuccessfully attempted to deserialize
        into.
        :return: the name of the type that was to be the target type.
        """
        return self._target_name


class InvalidDecorationError(JsonsError):
    """
    Raised when a jsons decorator was wrongly used.
    """
    def __init__(self, message: str):
        """
        Constructor.
        :param message: the message of this error.
        """
        JsonsError.__init__(self, message)


1			"""
2			Contains the classes that may be raised by jsons.
3			"""
4			from json import JSONDecodeError
5			from typing import Optional
6
7
8			class JsonsError(Exception):
9			"""
10			Base class for all `jsons` errors.
11			"""
12			def __init__(self, message: str):
13			"""
14			Constructor.
15			:param message: the message describing the problem.
16			"""
17			Exception.__init__(self, message)
18			self._message = message
19
20			@property
21			def message(self):
22			return self._message
23
24
25			class ArgumentError(JsonsError, ValueError):
26			"""
27			Raised when serialization or deserialization went wrong caused by a wrong
28			argument when serializing or deserializing.
29			"""
30			def __init__(self, message: str, argument: str):
31			"""
32			Constructor.
33			:param message: the message describing the problem.
34			:param argument: the name of the argument in question.
35			"""
36			JsonsError.__init__(self, message)
37			ValueError.__init__(self, message)
38			self._argument = argument
39
40			@property
41			def argument(self) -> str:
42			"""
43			The argument in question.
44			:return: the name of the argument.
45			"""
46			return self._argument
47
48
49			class DeserializationError(JsonsError):
50			"""
51			Raised when deserialization failed for some reason.
52			"""
53			def __init__(self, message: str, source: object, target: Optional[type]):
54			"""
55			Constructor.
56			:param message: the message describing the problem.
57			:param source: the object that was to be deserialized.
58			:param target: the type to which `source` was to be deserialized.
59			"""
60			JsonsError.__init__(self, message)
61			self._source = source
62			self._target = target
63
64			@property
65			def source(self) -> object:
66			"""
67			The object that was to be deserialized.
68			:return: the object that was to be deserialized.
69			"""
70			return self._source
71
72			@property
73			def target(self) -> Optional[type]:
74			"""
75			The target type to which `source` was to be deserialized.
76			:return: the type to which `source` was to be deserialized.
77			"""
78			return self._target
79
80
81			class SerializationError(JsonsError):
82			"""
83			Raised when serialization failed for some reason.
84			"""
85
86
87			class RecursionDetectedError(SerializationError):
88			"""
89			Raised when a recursive structure was detected and a stack overflow was
90			prevented during serialization.
91			"""
92
93
94			class DecodeError(DeserializationError, JSONDecodeError):
95			"""
96			Raised when decoding a string or bytes to Python types failed. This error
97			is actually a wrapper around `json.JSONDecodeError`.
98			"""
99			def __init__(self, message: str, source: object, target: type,
100			error: JSONDecodeError):
101			"""
102			Constructor.
103			:param message: the message of this error.
104			:param source: the object that was to be deserialized.
105			:param target: the type to which `source` was to be deserialized.
106			:param error: the wrapped `JSONDecodeError`.
107			"""
108			DeserializationError.__init__(self, message, source, target)
109			JSONDecodeError.__init__(self, message, error.doc, error.pos)
110
111
112			class UnfulfilledArgumentError(DeserializationError, ArgumentError):
113			"""
114			Raised on a deserialization failure when an argument could not be fulfilled
115			by the given object attr_getter.
116			"""
117			def __init__(self,
118			message: str,
119			argument: str,
120			source: object,
121			target: type):
122			"""
123			Constructor.
124			:param message: the message of this error.
125			:param argument: the argument that was unfulfilled.
126			:param source: the object that was to be deserialized.
127			:param target: the type to which `source` was to be deserialized.
128			"""
129			DeserializationError.__init__(self, message, source, target)
130			ArgumentError.__init__(self, message, argument)
131
132
133			class SignatureMismatchError(DeserializationError, ArgumentError):
134			"""
135			Raised when the source could not be deserialized into the target type due
136			to a mismatch between the source's attributes and the target's accepted
137			parameters. This error is raised in "strict-mode" only.
138			"""
139			def __init__(self,
140			message: str,
141			argument: str,
142			source: object,
143			target: type):
144			"""
145			Constructor.
146			:param message: the message of this error.
147			:param argument: the argument that caused the problem.
148			:param source: the object that was to be deserialized.
149			:param target: the type to which `source` was to be deserialized.
150			"""
151			DeserializationError.__init__(self, message, source, target)
152			ArgumentError.__init__(self, message, argument)
153
154
155			class UnknownClassError(DeserializationError):
156			"""
157			Raised when jsons failed to find a type instance to deserialize to. If this
158			error occurs, consider using ``jsons.announce_class``.
159			"""
160			def __init__(self, message: str, source: object, target_name: str):
161			"""
162			Constructor.
163			:param message: the message of this error.
164			:param source: the object that was to be deserialized.
165			:param target_name: the name of the type that was the target type.
166			"""
167			DeserializationError.__init__(self, message, source, None)
168			self._target_name = target_name
169
170			@property
171			def target_name(self) -> str:
172			"""
173			The name of the type that was unsuccessfully attempted to deserialize
174			into.
175			:return: the name of the type that was to be the target type.
176			"""
177			return self._target_name
178
179
180			class InvalidDecorationError(JsonsError):
181			"""
182			Raised when a jsons decorator was wrongly used.
183			"""
184			def __init__(self, message: str):
185			"""
186			Constructor.
187			:param message: the message of this error.
188			"""
189			JsonsError.__init__(self, message)
190

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