InitConfig.py 2.3 KB

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  1. import logging
  2. import os
  3. from chromadb.utils import embedding_functions
  4. from embedchain.config.BaseConfig import BaseConfig
  5. class InitConfig(BaseConfig):
  6. """
  7. Config to initialize an embedchain `App` instance.
  8. """
  9. def __init__(self, log_level=None, ef=None, db=None, host=None, port=None):
  10. """
  11. :param log_level: Optional. (String) Debug level
  12. ['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'].
  13. :param ef: Optional. Embedding function to use.
  14. :param db: Optional. (Vector) database to use for embeddings.
  15. """
  16. self._setup_logging(log_level)
  17. self.ef = ef
  18. self.db = db
  19. self.host = host
  20. self.port = port
  21. return
  22. def _set_embedding_function(self, ef):
  23. self.ef = ef
  24. return
  25. def _set_embedding_function_to_default(self):
  26. """
  27. Sets embedding function to default (`text-embedding-ada-002`).
  28. :raises ValueError: If the template is not valid as template should contain
  29. $context and $query
  30. """
  31. if (
  32. os.getenv("OPENAI_API_KEY") is None
  33. and os.getenv("OPENAI_ORGANIZATION") is None
  34. ):
  35. raise ValueError(
  36. "OPENAI_API_KEY or OPENAI_ORGANIZATION environment variables not provided" # noqa:E501
  37. )
  38. self.ef = embedding_functions.OpenAIEmbeddingFunction(
  39. api_key=os.getenv("OPENAI_API_KEY"),
  40. organization_id=os.getenv("OPENAI_ORGANIZATION"),
  41. model_name="text-embedding-ada-002",
  42. )
  43. return
  44. def _set_db(self, db):
  45. if db:
  46. self.db = db
  47. return
  48. def _set_db_to_default(self):
  49. """
  50. Sets database to default (`ChromaDb`).
  51. """
  52. from embedchain.vectordb.chroma_db import ChromaDB
  53. self.db = ChromaDB(ef=self.ef, host=self.host, port=self.port)
  54. def _setup_logging(self, debug_level):
  55. level = logging.WARNING # Default level
  56. if debug_level is not None:
  57. level = getattr(logging, debug_level.upper(), None)
  58. if not isinstance(level, int):
  59. raise ValueError(f"Invalid log level: {debug_level}")
  60. logging.basicConfig(
  61. format="%(asctime)s [%(name)s] [%(levelname)s] %(message)s", level=level
  62. )
  63. self.logger = logging.getLogger(__name__)
  64. return