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328 lines
12 KiB
Python
328 lines
12 KiB
Python
from __future__ import annotations
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import asyncio
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import random
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from ..typing import Type, List, CreateResult, Messages, Iterator, AsyncResult
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from .types import BaseProvider, BaseRetryProvider, ProviderType
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from .. import debug
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from ..errors import RetryProviderError, RetryNoProviderError
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class IterListProvider(BaseRetryProvider):
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def __init__(
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self,
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providers: List[Type[BaseProvider]],
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shuffle: bool = True
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) -> None:
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"""
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Initialize the BaseRetryProvider.
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Args:
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providers (List[Type[BaseProvider]]): List of providers to use.
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shuffle (bool): Whether to shuffle the providers list.
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single_provider_retry (bool): Whether to retry a single provider if it fails.
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max_retries (int): Maximum number of retries for a single provider.
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"""
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self.providers = providers
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self.shuffle = shuffle
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self.working = True
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self.last_provider: Type[BaseProvider] = None
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def create_completion(
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self,
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model: str,
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messages: Messages,
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stream: bool = False,
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**kwargs,
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) -> CreateResult:
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"""
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Create a completion using available providers, with an option to stream the response.
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Args:
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model (str): The model to be used for completion.
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messages (Messages): The messages to be used for generating completion.
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stream (bool, optional): Flag to indicate if the response should be streamed. Defaults to False.
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Yields:
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CreateResult: Tokens or results from the completion.
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Raises:
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Exception: Any exception encountered during the completion process.
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"""
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exceptions = {}
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started: bool = False
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for provider in self.get_providers(stream):
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self.last_provider = provider
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try:
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if debug.logging:
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print(f"Using {provider.__name__} provider")
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for token in provider.create_completion(model, messages, stream, **kwargs):
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yield token
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started = True
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if started:
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return
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except Exception as e:
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exceptions[provider.__name__] = e
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if debug.logging:
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print(f"{provider.__name__}: {e.__class__.__name__}: {e}")
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if started:
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raise e
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raise_exceptions(exceptions)
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async def create_async(
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self,
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model: str,
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messages: Messages,
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**kwargs,
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) -> str:
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"""
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Asynchronously create a completion using available providers.
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Args:
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model (str): The model to be used for completion.
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messages (Messages): The messages to be used for generating completion.
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Returns:
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str: The result of the asynchronous completion.
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Raises:
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Exception: Any exception encountered during the asynchronous completion process.
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"""
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exceptions = {}
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for provider in self.get_providers(False):
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self.last_provider = provider
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try:
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if debug.logging:
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print(f"Using {provider.__name__} provider")
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return await asyncio.wait_for(
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provider.create_async(model, messages, **kwargs),
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timeout=kwargs.get("timeout", 60),
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)
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except Exception as e:
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exceptions[provider.__name__] = e
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if debug.logging:
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print(f"{provider.__name__}: {e.__class__.__name__}: {e}")
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raise_exceptions(exceptions)
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def get_providers(self, stream: bool) -> list[ProviderType]:
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providers = [p for p in self.providers if p.supports_stream] if stream else self.providers
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if self.shuffle:
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random.shuffle(providers)
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return providers
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async def create_async_generator(
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self,
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model: str,
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messages: Messages,
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stream: bool = True,
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**kwargs
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) -> AsyncResult:
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exceptions = {}
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started: bool = False
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for provider in self.get_providers(stream):
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self.last_provider = provider
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try:
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if debug.logging:
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print(f"Using {provider.__name__} provider")
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if not stream:
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yield await provider.create_async(model, messages, **kwargs)
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elif hasattr(provider, "create_async_generator"):
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async for token in provider.create_async_generator(model, messages, stream=stream, **kwargs):
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yield token
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else:
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for token in provider.create_completion(model, messages, stream, **kwargs):
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yield token
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started = True
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if started:
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return
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except Exception as e:
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exceptions[provider.__name__] = e
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if debug.logging:
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print(f"{provider.__name__}: {e.__class__.__name__}: {e}")
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if started:
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raise e
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raise_exceptions(exceptions)
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class RetryProvider(IterListProvider):
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def __init__(
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self,
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providers: List[Type[BaseProvider]],
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shuffle: bool = True,
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single_provider_retry: bool = False,
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max_retries: int = 3,
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) -> None:
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"""
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Initialize the BaseRetryProvider.
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Args:
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providers (List[Type[BaseProvider]]): List of providers to use.
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shuffle (bool): Whether to shuffle the providers list.
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single_provider_retry (bool): Whether to retry a single provider if it fails.
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max_retries (int): Maximum number of retries for a single provider.
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"""
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super().__init__(providers, shuffle)
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self.single_provider_retry = single_provider_retry
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self.max_retries = max_retries
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def create_completion(
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self,
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model: str,
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messages: Messages,
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stream: bool = False,
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**kwargs,
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) -> CreateResult:
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"""
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Create a completion using available providers, with an option to stream the response.
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Args:
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model (str): The model to be used for completion.
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messages (Messages): The messages to be used for generating completion.
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stream (bool, optional): Flag to indicate if the response should be streamed. Defaults to False.
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Yields:
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CreateResult: Tokens or results from the completion.
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Raises:
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Exception: Any exception encountered during the completion process.
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"""
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if self.single_provider_retry:
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exceptions = {}
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started: bool = False
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provider = self.providers[0]
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self.last_provider = provider
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for attempt in range(self.max_retries):
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try:
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if debug.logging:
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print(f"Using {provider.__name__} provider (attempt {attempt + 1})")
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for token in provider.create_completion(model, messages, stream, **kwargs):
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yield token
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started = True
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if started:
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return
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except Exception as e:
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exceptions[provider.__name__] = e
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if debug.logging:
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print(f"{provider.__name__}: {e.__class__.__name__}: {e}")
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if started:
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raise e
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raise_exceptions(exceptions)
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else:
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yield from super().create_completion(model, messages, stream, **kwargs)
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async def create_async(
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self,
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model: str,
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messages: Messages,
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**kwargs,
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) -> str:
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"""
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Asynchronously create a completion using available providers.
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Args:
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model (str): The model to be used for completion.
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messages (Messages): The messages to be used for generating completion.
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Returns:
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str: The result of the asynchronous completion.
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Raises:
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Exception: Any exception encountered during the asynchronous completion process.
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"""
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exceptions = {}
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if self.single_provider_retry:
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provider = self.providers[0]
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self.last_provider = provider
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for attempt in range(self.max_retries):
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try:
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if debug.logging:
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print(f"Using {provider.__name__} provider (attempt {attempt + 1})")
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return await asyncio.wait_for(
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provider.create_async(model, messages, **kwargs),
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timeout=kwargs.get("timeout", 60),
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)
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except Exception as e:
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exceptions[provider.__name__] = e
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if debug.logging:
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print(f"{provider.__name__}: {e.__class__.__name__}: {e}")
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raise_exceptions(exceptions)
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else:
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return await super().create_async(model, messages, **kwargs)
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class IterProvider(BaseRetryProvider):
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__name__ = "IterProvider"
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def __init__(
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self,
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providers: List[BaseProvider],
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) -> None:
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providers.reverse()
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self.providers: List[BaseProvider] = providers
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self.working: bool = True
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self.last_provider: BaseProvider = None
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def create_completion(
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self,
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model: str,
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messages: Messages,
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stream: bool = False,
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**kwargs
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) -> CreateResult:
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exceptions: dict = {}
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started: bool = False
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for provider in self.iter_providers():
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if stream and not provider.supports_stream:
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continue
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try:
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for token in provider.create_completion(model, messages, stream, **kwargs):
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yield token
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started = True
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if started:
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return
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except Exception as e:
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exceptions[provider.__name__] = e
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if debug.logging:
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print(f"{provider.__name__}: {e.__class__.__name__}: {e}")
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if started:
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raise e
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raise_exceptions(exceptions)
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async def create_async(
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self,
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model: str,
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messages: Messages,
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**kwargs
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) -> str:
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exceptions: dict = {}
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for provider in self.iter_providers():
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try:
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return await asyncio.wait_for(
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provider.create_async(model, messages, **kwargs),
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timeout=kwargs.get("timeout", 60)
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)
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except Exception as e:
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exceptions[provider.__name__] = e
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if debug.logging:
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print(f"{provider.__name__}: {e.__class__.__name__}: {e}")
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raise_exceptions(exceptions)
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def iter_providers(self) -> Iterator[BaseProvider]:
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used_provider = []
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try:
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while self.providers:
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provider = self.providers.pop()
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used_provider.append(provider)
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self.last_provider = provider
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if debug.logging:
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print(f"Using {provider.__name__} provider")
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yield provider
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finally:
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used_provider.reverse()
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self.providers = [*used_provider, *self.providers]
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def raise_exceptions(exceptions: dict) -> None:
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"""
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Raise a combined exception if any occurred during retries.
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Raises:
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RetryProviderError: If any provider encountered an exception.
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RetryNoProviderError: If no provider is found.
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"""
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if exceptions:
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raise RetryProviderError("RetryProvider failed:\n" + "\n".join([
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f"{p}: {exception.__class__.__name__}: {exception}" for p, exception in exceptions.items()
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]))
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raise RetryNoProviderError("No provider found") |