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"""Base schema for data structures."""
from abc import abstractmethod
from dataclasses import dataclass
from typing import Any, Dict, List, Optional
from dataclasses_json import DataClassJsonMixin
@dataclass
class BaseDocument(DataClassJsonMixin):
"""Base document.
Generic abstract interfaces that captures both index structs
as well as documents.
"""
# TODO: consolidate fields from Document/IndexStruct into base class
text: Optional[str] = None
doc_id: Optional[str] = None
embedding: Optional[List[float]] = None
# extra fields
extra_info: Optional[Dict[str, Any]] = None
@classmethod
@abstractmethod
def get_type(cls) -> str:
"""Get Document type."""
def get_text(self) -> str:
"""Get text."""
if self.text is None:
raise ValueError("text field not set.")
return self.text
def get_doc_id(self) -> str:
"""Get doc_id."""
if self.doc_id is None:
raise ValueError("doc_id not set.")
return self.doc_id
@property
def is_doc_id_none(self) -> bool:
"""Check if doc_id is None."""
return self.doc_id is None
def get_embedding(self) -> List[float]:
"""Get embedding.
Errors if embedding is None.
"""
if self.embedding is None:
raise ValueError("embedding not set.")
return self.embedding
@property
def extra_info_str(self) -> Optional[str]:
"""Extra info string."""
if self.extra_info is None:
return None
return "\n".join([f"{k}: {str(v)}" for k, v in self.extra_info.items()])
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