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from __future__ import annotations
import asyncio
import random
from typing import List, Type, Dict
from ..typing import CreateResult, Messages
from .base_provider import BaseProvider, AsyncProvider
class RetryProvider(AsyncProvider):
__name__: str = "RetryProvider"
working: bool = True
supports_stream: bool = True
logging: bool = False
def __init__(
self,
providers: List[Type[BaseProvider]],
shuffle: bool = True
) -> None:
self.providers: List[Type[BaseProvider]] = providers
self.shuffle: bool = shuffle
def create_completion(
self,
model: str,
messages: Messages,
stream: bool = False,
**kwargs
) -> CreateResult:
if stream:
providers = [provider for provider in self.providers if provider.supports_stream]
else:
providers = self.providers
if self.shuffle:
random.shuffle(providers)
self.exceptions: Dict[str, Exception] = {}
started: bool = False
for provider in providers:
try:
if self.logging:
print(f"Using {provider.__name__} provider")
for token in provider.create_completion(model, messages, stream, **kwargs):
yield token
started = True
if started:
return
except Exception as e:
self.exceptions[provider.__name__] = e
if self.logging:
print(f"{provider.__name__}: {e.__class__.__name__}: {e}")
if started:
raise e
self.raise_exceptions()
async def create_async(
self,
model: str,
messages: Messages,
**kwargs
) -> str:
providers = self.providers
if self.shuffle:
random.shuffle(providers)
self.exceptions: Dict[str, Exception] = {}
for provider in providers:
try:
return await asyncio.wait_for(provider.create_async(model, messages, **kwargs), timeout=60)
except asyncio.TimeoutError as e:
self.exceptions[provider.__name__] = e
if self.logging:
print(f"{provider.__name__}: TimeoutError: {e}")
except Exception as e:
self.exceptions[provider.__name__] = e
if self.logging:
print(f"{provider.__name__}: {e.__class__.__name__}: {e}")
self.raise_exceptions()
def raise_exceptions(self) -> None:
if self.exceptions:
raise RuntimeError("\n".join(["All providers failed:"] + [
f"{p}: {self.exceptions[p].__class__.__name__}: {self.exceptions[p]}" for p in self.exceptions
]))
raise RuntimeError("No provider found")
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