133 lines
4.4 KiB
Python
133 lines
4.4 KiB
Python
from openai import OpenAI, AsyncOpenAI
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from typing import Dict, List, Optional
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from pydantic import SecretStr
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from deepeval.config.settings import get_settings
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from deepeval.models.utils import (
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require_secret_api_key,
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)
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from deepeval.models import DeepEvalBaseEmbeddingModel
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from deepeval.models.retry_policy import (
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create_retry_decorator,
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sdk_retries_for,
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)
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from deepeval.constants import ProviderSlug as PS
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from deepeval.utils import require_param
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# consistent retry rules
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retry_local = create_retry_decorator(PS.LOCAL)
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class LocalEmbeddingModel(DeepEvalBaseEmbeddingModel):
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def __init__(
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self,
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model: Optional[str] = None,
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api_key: Optional[str] = None,
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base_url: Optional[str] = None,
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generation_kwargs: Optional[Dict] = None,
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**kwargs,
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):
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settings = get_settings()
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if api_key is not None:
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# keep it secret, keep it safe from serializings, logging and alike
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self.api_key: Optional[SecretStr] = SecretStr(api_key)
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else:
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self.api_key = get_settings().LOCAL_EMBEDDING_API_KEY
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if base_url is not None:
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base_url = str(base_url).rstrip("/")
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elif settings.LOCAL_EMBEDDING_BASE_URL is not None:
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base_url = str(settings.LOCAL_EMBEDDING_BASE_URL).rstrip("/")
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model = model or settings.LOCAL_EMBEDDING_MODEL_NAME
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# validation
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model = require_param(
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model,
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provider_label="LocalEmbeddingModel",
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env_var_name="LOCAL_EMBEDDING_MODEL_NAME",
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param_hint="model",
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)
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self.base_url = require_param(
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base_url,
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provider_label="LocalEmbeddingModel",
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env_var_name="LOCAL_EMBEDDING_BASE_URL",
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param_hint="base_url",
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)
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# Keep sanitized kwargs for client call to strip legacy keys
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self.kwargs = kwargs
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self.generation_kwargs = generation_kwargs or {}
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super().__init__(model)
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@retry_local
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def embed_text(self, text: str) -> List[float]:
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embedding_model = self.load_model()
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response = embedding_model.embeddings.create(
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model=self.name, input=[text], **self.generation_kwargs
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)
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return response.data[0].embedding
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@retry_local
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def embed_texts(self, texts: List[str]) -> List[List[float]]:
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embedding_model = self.load_model()
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response = embedding_model.embeddings.create(
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model=self.name, input=texts, **self.generation_kwargs
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)
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return [data.embedding for data in response.data]
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@retry_local
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async def a_embed_text(self, text: str) -> List[float]:
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embedding_model = self.load_model(async_mode=True)
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response = await embedding_model.embeddings.create(
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model=self.name, input=[text], **self.generation_kwargs
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)
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return response.data[0].embedding
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@retry_local
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async def a_embed_texts(self, texts: List[str]) -> List[List[float]]:
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embedding_model = self.load_model(async_mode=True)
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response = await embedding_model.embeddings.create(
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model=self.name, input=texts, **self.generation_kwargs
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)
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return [data.embedding for data in response.data]
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###############################################
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# Model
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###############################################
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def load_model(self, async_mode: bool = False):
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if not async_mode:
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return self._build_client(OpenAI)
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return self._build_client(AsyncOpenAI)
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def _build_client(self, cls):
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api_key = require_secret_api_key(
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self.api_key,
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provider_label="OpenAI",
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env_var_name="LOCAL_EMBEDDING_API_KEY",
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param_hint="`api_key` to LocalEmbeddingModel(...)",
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)
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client_kwargs = self.kwargs.copy()
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if not sdk_retries_for(PS.LOCAL):
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client_kwargs["max_retries"] = 0
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client_init_kwargs = dict(
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api_key=api_key,
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base_url=self.base_url,
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**client_kwargs,
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)
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try:
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return cls(**client_init_kwargs)
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except TypeError as e:
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# older OpenAI SDKs may not accept max_retries, in that case remove and retry once
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if "max_retries" in str(e):
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client_init_kwargs.pop("max_retries", None)
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return cls(**client_init_kwargs)
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raise
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def get_model_name(self):
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return f"{self.name} (Local Model)"
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