dlab_core.infrastructure.repositories

Module Contents

LC_ERR_WRONG_ARGUMENTS = Unrecognized arguments

LC_ERR_INVALID_DATA_TYPE = Invalid context type, should be instance of {name}

LC_ERR_NO_FILE = No such file or directory: "{location}".

LC_ERR_NOT_JSON_CONTENT = No JSON object could be decoded

exception RepositoryDataTypeException(name)

Bases: dlab_core.domain.repositories.RepositoryException

Raised when try to assign wrong data type.

Parameters:name (str) – Type name.

exception RepositoryFileNotFoundException(key)

Bases: dlab_core.domain.repositories.RepositoryException

Raised when try to read unavailable file.

Parameters:key (str) – File location

exception RepositoryJSONContentException

Bases: dlab_core.domain.repositories.RepositoryException

Raised during non JSON content serialization.

exception RepositoryWrongArgumentException

Bases: dlab_core.domain.repositories.RepositoryException

Raised during non JSON content serialization.

class DictRepository

Bases: dlab_core.domain.repositories.BaseRepository

Dictionary repository. Can be used as a base for repositories data based on dict.

data

Repository data getter.

Return type:dict of Tuple Returns:Repository data.

find_one(self, key)

Find one record in storage.

Parameters:key (str) – Record unique identifier. Return type:dict Returns:Record data.

find_all(self)

Finds all entities in the repository.

Return type:list of dict Returns:All records from data storage.

class BaseLazyLoadRepository

Bases: dlab_core.infrastructure.repositories.DictRepository

data

Repository data getter.

Return type:list of dict Returns:Repository data.

_load_data(self)

Load data from data source.

Return type:list of dict Returns:Repository data.

class BaseFileRepository(location)

Bases: dlab_core.infrastructure.repositories.DictRepository

Repository based on file data.

Parameters:location (str) – Data source file location.

location

File location getter.

Return type:str Returns:File location.

classmethod _validate(cls, location)

Validate file location.

Raises:

• RepositoryDataTypeException –
• RepositoryFileNotFoundException –

class ArrayRepository(data=None)

Bases: dlab_core.infrastructure.repositories.DictRepository

Repository based on dict data.

Parameters:data (dict) – Repository data.

append(self, key, value)

Add new element into data set.

Parameters:

• key (str) – Record UUID.
• value – Record value.

static _validate(data)

Data source validator.

Parameters:data – Data for validation. Raises:RepositoryDataTypeException –

class EnvironRepository

Bases: dlab_core.infrastructure.repositories.DictRepository

Repository based on os.environ data.

find_one(self, key)

Find one record in storage.

Parameters:key (str) – Record unique identifier. Return type:dict Returns:Record data.

class JSONContentRepository(content=None)

Bases: dlab_core.infrastructure.repositories.DictRepository

Repository based on JSON data.

Parameters:content (str) – JSON content for data source.

content

Content getter.

Return type:str Returns:JSON data content.

class ArgumentsRepository(arg_parse=None)

Bases: dlab_core.infrastructure.repositories.BaseLazyLoadRepository

Repository based on CLI arguments as data source.

Parameters:arg_parse (argparse.ArgumentParser) – Argument Parser.

arg_parse

Argument parser getter.

Return type:argparse.ArgumentParser Returns:Argument Parser.

static _silence_stderr()

Turn off stderr.

_load_data(self)

Load data from data source.

Return type:list of dict Returns:Repository data. Raises:RepositoryWrongArgumentException –

add_argument(self, *args, **kwargs)

Add argument parser argument.

class ConfigRepository(location)

Bases: dlab_core.infrastructure.repositories.BaseFileRepository, dlab_core.infrastructure.repositories.BaseLazyLoadRepository

Repository based on file data.

Parameters:location (str) – Data source file location.

VARIABLE_TEMPLATE = {0}_{1}

_load_data(self)

Load data from data source.

Return type:list of dict Returns:Repository data.

class ChainOfRepositories(repos=())

Bases: dlab_core.infrastructure.repositories.DictRepository

List of repositories executed one by one till data will be found.

Parameters:repos (list of BaseRepository.) – List of repositories executed in chain. Raises:RepositoryDataTypeException –

register(self, repo)

Register new repository in chain.

Parameters:repo (BaseRepository) – Repository. Raises:RepositoryDataTypeException –

find_one(self, key)

Find one record in storage.

Parameters:key (str) – Record unique identifier. Return type:dict Returns:Record data.

find_all(self)

Finds all entities in the repository.

Return type:list of dict Returns:All records from data storage.