minos.common.model.abc module

class minos.common.model.abc.Model(fields=None, **kwargs)

Bases: collections.abc.Mapping

Base class for minos model entities.

__init__(fields=None, **kwargs)

Class constructor.

Parameters

fields (typing.Union[typing.Iterable[minos.common.model.fields.Field], dict[str, minos.common.model.fields.Field], None]) – Dictionary that contains the Field instances of the model indexed by name.

property avro_bytes: bytes

Generate bytes representation of the current instance.

Return type

bytes

Returns

A bytes object.

property avro_data: dict

Compute the avro data of the model.

Return type

dict[str, typing.Any]

Returns

A dictionary object.

avro_schema = [{'name': 'Model', 'namespace': 'minos.common.model.abc.20a4e08c-81d3-492a-a0f1-12e68ccf023c', 'type': 'record', 'fields': []}]

property avro_str: str

Generate bytes representation of the current instance.

Return type

str

Returns

A bytes object.

classname = 'minos.common.model.abc.Model'

classmethod decode_data(decoder, target, type_, **kwargs)

Decode data with the given decoder.

Parameters

• decoder (minos.common.model.serializers.abc.DataDecoder) – The decoder instance.

• target (typing.Any) – The data to be decoded.

• type – The data type.

• kwargs – Additional named arguments.

Return type

typing.Any

Returns

A decoded instance.

classmethod decode_schema(decoder, target, **kwargs)

Decode schema with the given encoder.

Parameters

• decoder (minos.common.model.serializers.abc.SchemaDecoder) – The decoder instance.

• target (typing.Any) – The schema to be decoded.

• kwargs – Additional named arguments.

Return type

typing.Any

Returns

The decoded schema as a type.

encode_data(encoder, target, **kwargs)

Encode data with the given encoder.

Parameters

• encoder (minos.common.model.serializers.abc.DataEncoder) – The encoder instance.

• target (typing.Any) – An optional pre-encoded data.

• kwargs – Additional named arguments.

Return type

typing.Any

Returns

The encoded data of the instance.

classmethod encode_schema(encoder, target, **kwargs)

Encode schema with the given encoder.

Parameters

• encoder (minos.common.model.serializers.abc.SchemaEncoder) – The encoder instance.

• target (typing.Any) – An optional pre-encoded schema.

• kwargs – Additional named arguments.

Return type

typing.Any

Returns

The encoded schema of the instance.

property fields: dict

Fields getter

Return type

dict[str, minos.common.model.fields.Field]

classmethod from_avro(schema, data)

Build a new instance from the avro schema and data.

Parameters

• schema (typing.Any) – The avro schema of the model.

• data (typing.Any) – The avro data of the model.

Return type

~T

Returns

A new DynamicModel instance.

classmethod from_avro_bytes(raw, batch_mode=False, **kwargs)

Build a single instance or a sequence of instances from bytes

Parameters

• raw (bytes) – A bytes representation of the model.

• batch_mode (bool) – If True the data is processed as a list of models, otherwise the data is processed as a

single model. :param kwargs: Additional named arguments. :rtype: typing.Union[~T, list[~T]] :return: A single instance or a sequence of instances.

classmethod from_avro_str(raw, **kwargs)

Build a single instance or a sequence of instances from bytes

Parameters

raw (str) – A str representation of the model.

Return type

typing.Union[~T, list[~T]]

Returns

A single instance or a sequence of instances.

abstract classmethod from_model_type(model_type, *args, **kwargs)

Build a Model from a ModelType.

Parameters

• model_type (minos.common.model.types.model_types.ModelType) – ModelType object containing the DTO’s structure

• args – Positional arguments to be passed to the model constructor.

• kwargs – Named arguments to be passed to the model constructor.

Return type

~T

Returns

A new DeclarativeModel instance.

classmethod from_typed_dict(typed_dict, *args, **kwargs)

Build a Model from a TypeDict and data.

Parameters

• typed_dict (typing.TypedDict) – TypeDict object containing the DTO’s structure

• args – Positional arguments to be passed to the model constructor.

• kwargs – Named arguments to be passed to the model constructor.

Return type

~T

Returns

A new DataTransferObject instance.

get(k[, d]) → D[k] if k in D, else d.  d defaults to None.

items() → a set-like object providing a view on D’s items

keys() → a set-like object providing a view on D’s keys

model_type

alias of minos.common.model.types.model_types.Model

classmethod to_avro_bytes(models)

Create a bytes representation of the given object instances.

Parameters

models (list[~T]) – A sequence of minos models.

Return type

bytes

Returns

A bytes object.

classmethod to_avro_str(models)

Build the avro string representation of the given object instances.

Parameters

models (list[~T]) – A sequence of minos models.

Return type

str

Returns

A bytes object.

type_hints = {}

type_hints_parameters = ()

values() → an object providing a view on D’s values