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578e5a9160
# What does this PR do? ## Test Plan # What does this PR do? ## Test Plan # What does this PR do? ## Test Plan
52 lines
1.9 KiB
Python
52 lines
1.9 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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# All rights reserved.
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#
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# This source code is licensed under the terms described in the LICENSE file in
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# the root directory of this source tree.
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import asyncio
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from llama_stack.apis.inference import Message
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from llama_stack.apis.safety import Safety, SafetyViolation, ViolationLevel
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from llama_stack.core.telemetry import tracing
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from llama_stack.log import get_logger
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log = get_logger(name=__name__, category="agents::meta_reference")
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class SafetyException(Exception): # noqa: N818
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def __init__(self, violation: SafetyViolation):
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self.violation = violation
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super().__init__(violation.user_message)
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class ShieldRunnerMixin:
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def __init__(
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self,
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safety_api: Safety,
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input_shields: list[str] | None = None,
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output_shields: list[str] | None = None,
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):
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self.safety_api = safety_api
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self.input_shields = input_shields
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self.output_shields = output_shields
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async def run_multiple_shields(self, messages: list[Message], identifiers: list[str]) -> None:
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async def run_shield_with_span(identifier: str):
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async with tracing.span(f"run_shield_{identifier}"):
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return await self.safety_api.run_shield(
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shield_id=identifier,
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messages=messages,
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params={},
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)
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responses = await asyncio.gather(*[run_shield_with_span(identifier) for identifier in identifiers])
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for identifier, response in zip(identifiers, responses, strict=False):
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if not response.violation:
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continue
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violation = response.violation
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if violation.violation_level == ViolationLevel.ERROR:
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raise SafetyException(violation)
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elif violation.violation_level == ViolationLevel.WARN:
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log.warning(f"[Warn]{identifier} raised a warning")
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