34 lines
894 B
Python
34 lines
894 B
Python
from haiku.rag.config import Config
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from haiku.rag.reranking.base import RerankerBase
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_reranker: RerankerBase | None = None
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def get_reranker() -> RerankerBase | None:
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"""
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Factory function to get the appropriate reranker based on the configuration.
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Returns None if if reranking is disabled.
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"""
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global _reranker
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if _reranker is not None:
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return _reranker
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if Config.RERANK_PROVIDER == "mxbai":
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try:
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from haiku.rag.reranking.mxbai import MxBAIReranker
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_reranker = MxBAIReranker()
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return _reranker
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except ImportError:
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return None
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if Config.RERANK_PROVIDER == "cohere":
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try:
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from haiku.rag.reranking.cohere import CohereReranker
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_reranker = CohereReranker()
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return _reranker
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except ImportError:
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return None
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return None
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