deerflow2/backend/packages/harness/deerflow/config/stream_bridge_config.py

47 lines
1.6 KiB
Python

"""Configuration for stream bridge."""
from typing import Literal
from pydantic import BaseModel, Field
StreamBridgeType = Literal["memory", "redis"]
class StreamBridgeConfig(BaseModel):
"""Configuration for the stream bridge that connects agent workers to SSE endpoints."""
type: StreamBridgeType = Field(
default="memory",
description="Stream bridge backend type. 'memory' uses in-process asyncio.Queue (single-process only). 'redis' uses Redis Streams (planned for Phase 2, not yet implemented).",
)
redis_url: str | None = Field(
default=None,
description="Redis URL for the redis stream bridge type. Example: 'redis://localhost:6379/0'.",
)
queue_maxsize: int = Field(
default=256,
description="Maximum number of events buffered per run in the memory bridge.",
)
# Global configuration instance — None means no stream bridge is configured
# (falls back to memory with defaults).
_stream_bridge_config: StreamBridgeConfig | None = None
def get_stream_bridge_config() -> StreamBridgeConfig | None:
"""Get the current stream bridge configuration, or None if not configured."""
return _stream_bridge_config
def set_stream_bridge_config(config: StreamBridgeConfig | None) -> None:
"""Set the stream bridge configuration."""
global _stream_bridge_config
_stream_bridge_config = config
def load_stream_bridge_config_from_dict(config_dict: dict) -> None:
"""Load stream bridge configuration from a dictionary."""
global _stream_bridge_config
_stream_bridge_config = StreamBridgeConfig(**config_dict)