be2d1a8652
* Use logging.Logger in SingerSource * Fix SingerSource ConfigContainer This fixes typing issues with `ConfigContainer` and makes it compatible with `split_config`. Fixes #8710. * Fix SingerSource state and catalog typer issues * Rename SingerSource method args to match parent classes * Remove old comment about excluding Singer Co-authored-by: Alexandre Girard <alexandre@airbyte.io>
58 lines
2.0 KiB
Python
58 lines
2.0 KiB
Python
#
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# Copyright (c) 2022 Airbyte, Inc., all rights reserved.
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#
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import json
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import logging
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from abc import ABC, abstractmethod
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from collections import defaultdict
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from typing import Any, Dict, Generic, Iterable, Mapping, MutableMapping, TypeVar
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from airbyte_cdk.connector import BaseConnector, DefaultConnectorMixin, TConfig
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from airbyte_cdk.models import AirbyteCatalog, AirbyteMessage, ConfiguredAirbyteCatalog
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TState = TypeVar("TState")
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TCatalog = TypeVar("TCatalog")
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class BaseSource(BaseConnector[TConfig], ABC, Generic[TConfig, TState, TCatalog]):
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@abstractmethod
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def read_state(self, state_path: str) -> TState:
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...
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@abstractmethod
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def read_catalog(self, catalog_path: str) -> TCatalog:
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...
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@abstractmethod
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def read(
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self, logger: logging.Logger, config: TConfig, catalog: TCatalog, state: TState = None
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) -> Iterable[AirbyteMessage]:
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"""
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Returns a generator of the AirbyteMessages generated by reading the source with the given configuration, catalog, and state.
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"""
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@abstractmethod
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def discover(self, logger: logging.Logger, config: TConfig) -> AirbyteCatalog:
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"""
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Returns an AirbyteCatalog representing the available streams and fields in this integration. For example, given valid credentials to a
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Postgres database, returns an Airbyte catalog where each postgres table is a stream, and each table column is a field.
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"""
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class Source(DefaultConnectorMixin, BaseSource[Mapping[str, Any], MutableMapping[str, Any], ConfiguredAirbyteCatalog], ABC):
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# can be overridden to change an input state
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def read_state(self, state_path: str) -> Dict[str, Any]:
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if state_path:
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state_obj = json.loads(open(state_path, "r").read())
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else:
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state_obj = {}
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state = defaultdict(dict, state_obj)
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return state
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# can be overridden to change an input catalog
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def read_catalog(self, catalog_path: str) -> ConfiguredAirbyteCatalog:
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return ConfiguredAirbyteCatalog.parse_obj(self.read_config(catalog_path))
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