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31a2688 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | """Embedding generation using a provider-agnostic LangChain Embeddings interface."""
import logging
from langchain_core.embeddings import Embeddings
logger = logging.getLogger(__name__)
class Embedder:
"""Generates embeddings using a LangChain Embeddings instance."""
def __init__(self, embeddings: Embeddings) -> None:
"""Initialize the embedder.
Args:
embeddings: A LangChain Embeddings instance from provider.py.
"""
self._embeddings = embeddings
def embed_text(self, text: str) -> list[float]:
"""Generate an embedding vector for a single text.
Args:
text: The text to embed.
Returns:
Embedding vector as a list of floats.
"""
logger.debug("Embedding single text of length %d", len(text))
return self._embeddings.embed_query(text)
def embed_batch(self, texts: list[str]) -> list[list[float]]:
"""Generate embeddings for a batch of texts.
Args:
texts: List of texts to embed.
Returns:
List of embedding vectors.
"""
if not texts:
return []
logger.debug("Embedding batch of %d texts", len(texts))
return self._embeddings.embed_documents(texts)
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