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f292f3a84d
Co-authored-by: openhands <openhands@all-hands.dev> Co-authored-by: sp.wack <83104063+amanape@users.noreply.github.com> Co-authored-by: Engel Nyst <enyst@users.noreply.github.com>
231 lines
8.2 KiB
Python
231 lines
8.2 KiB
Python
# pyright: reportArgumentType=false
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"""SQL implementation of EventCallbackService."""
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from __future__ import annotations
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import asyncio
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import logging
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from dataclasses import dataclass
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from typing import AsyncGenerator
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from uuid import UUID
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from fastapi import Request
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from sqlalchemy import UUID as SQLUUID
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from sqlalchemy import Column, Enum, String, and_, func, or_, select
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from sqlalchemy.ext.asyncio import AsyncSession
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from openhands.app_server.event_callback.event_callback_models import (
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CreateEventCallbackRequest,
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EventCallback,
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EventCallbackPage,
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EventCallbackProcessor,
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EventKind,
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)
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from openhands.app_server.event_callback.event_callback_result_models import (
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EventCallbackResultStatus,
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)
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from openhands.app_server.event_callback.event_callback_service import (
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EventCallbackService,
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EventCallbackServiceInjector,
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)
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from openhands.app_server.services.injector import InjectorState
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from openhands.app_server.utils.sql_utils import (
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Base,
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UtcDateTime,
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create_json_type_decorator,
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row2dict,
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)
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from openhands.sdk import Event
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_logger = logging.getLogger(__name__)
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# TODO: Add user level filtering to this class
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class StoredEventCallback(Base): # type: ignore
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__tablename__ = 'event_callback'
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id = Column(SQLUUID, primary_key=True)
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conversation_id = Column(SQLUUID, nullable=True)
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processor = Column(create_json_type_decorator(EventCallbackProcessor))
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event_kind = Column(String, nullable=True)
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created_at = Column(UtcDateTime, server_default=func.now(), index=True)
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class StoredEventCallbackResult(Base): # type: ignore
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__tablename__ = 'event_callback_result'
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id = Column(SQLUUID, primary_key=True)
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status = Column(Enum(EventCallbackResultStatus), nullable=True)
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event_callback_id = Column(SQLUUID, index=True)
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event_id = Column(SQLUUID, index=True)
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conversation_id = Column(SQLUUID, index=True)
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detail = Column(String, nullable=True)
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created_at = Column(UtcDateTime, server_default=func.now(), index=True)
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@dataclass
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class SQLEventCallbackService(EventCallbackService):
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"""SQL implementation of EventCallbackService."""
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db_session: AsyncSession
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async def create_event_callback(
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self, request: CreateEventCallbackRequest
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) -> EventCallback:
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"""Create a new event callback."""
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# Create EventCallback from request
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event_callback = EventCallback(
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conversation_id=request.conversation_id,
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processor=request.processor,
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event_kind=request.event_kind,
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)
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# Create stored version and add to db_session
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stored_callback = StoredEventCallback(**event_callback.model_dump())
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self.db_session.add(stored_callback)
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await self.db_session.commit()
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await self.db_session.refresh(stored_callback)
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return EventCallback(**row2dict(stored_callback))
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async def get_event_callback(self, id: UUID) -> EventCallback | None:
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"""Get a single event callback, returning None if not found."""
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stmt = select(StoredEventCallback).where(StoredEventCallback.id == id)
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result = await self.db_session.execute(stmt)
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stored_callback = result.scalar_one_or_none()
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if stored_callback:
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return EventCallback(**row2dict(stored_callback))
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return None
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async def delete_event_callback(self, id: UUID) -> bool:
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"""Delete an event callback, returning True if deleted, False if not found."""
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stmt = select(StoredEventCallback).where(StoredEventCallback.id == id)
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result = await self.db_session.execute(stmt)
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stored_callback = result.scalar_one_or_none()
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if stored_callback is None:
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return False
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await self.db_session.delete(stored_callback)
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await self.db_session.commit()
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return True
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async def search_event_callbacks(
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self,
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conversation_id__eq: UUID | None = None,
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event_kind__eq: EventKind | None = None,
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event_id__eq: UUID | None = None,
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page_id: str | None = None,
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limit: int = 100,
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) -> EventCallbackPage:
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"""Search for event callbacks, optionally filtered by parameters."""
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# Build the query with filters
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conditions = []
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if conversation_id__eq is not None:
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conditions.append(
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StoredEventCallback.conversation_id == conversation_id__eq
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)
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if event_kind__eq is not None:
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conditions.append(StoredEventCallback.event_kind == event_kind__eq)
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# Note: event_id__eq is not stored in the event_callbacks table
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# This parameter might be used for filtering results after retrieval
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# or might be intended for a different use case
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# Build the base query
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stmt = select(StoredEventCallback)
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if conditions:
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stmt = stmt.where(and_(*conditions))
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# Handle pagination
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if page_id is not None:
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# Parse page_id to get offset or cursor
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try:
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offset = int(page_id)
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stmt = stmt.offset(offset)
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except ValueError:
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# If page_id is not a valid integer, start from beginning
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offset = 0
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else:
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offset = 0
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# Apply limit and get one extra to check if there are more results
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stmt = stmt.limit(limit + 1).order_by(StoredEventCallback.created_at.desc())
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result = await self.db_session.execute(stmt)
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stored_callbacks = result.scalars().all()
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# Check if there are more results
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has_more = len(stored_callbacks) > limit
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if has_more:
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stored_callbacks = stored_callbacks[:limit]
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# Calculate next page ID
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next_page_id = None
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if has_more:
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next_page_id = str(offset + limit)
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# Convert stored callbacks to domain models
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callbacks = [EventCallback(**row2dict(cb)) for cb in stored_callbacks]
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return EventCallbackPage(items=callbacks, next_page_id=next_page_id)
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async def execute_callbacks(self, conversation_id: UUID, event: Event) -> None:
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query = (
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select(StoredEventCallback)
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.where(
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or_(
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StoredEventCallback.event_kind == event.kind,
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StoredEventCallback.event_kind.is_(None),
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)
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)
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.where(
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or_(
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StoredEventCallback.conversation_id == conversation_id,
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StoredEventCallback.conversation_id.is_(None),
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)
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)
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)
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result = await self.db_session.execute(query)
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stored_callbacks = result.scalars().all()
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if stored_callbacks:
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callbacks = [EventCallback(**row2dict(cb)) for cb in stored_callbacks]
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await asyncio.gather(
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*[
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self.execute_callback(conversation_id, callback, event)
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for callback in callbacks
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]
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)
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await self.db_session.commit()
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async def execute_callback(
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self, conversation_id: UUID, callback: EventCallback, event: Event
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):
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try:
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result = await callback.processor(conversation_id, callback, event)
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stored_result = StoredEventCallbackResult(**row2dict(result))
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except Exception as exc:
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_logger.exception(f'Exception in callback {callback.id}', stack_info=True)
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stored_result = StoredEventCallbackResult(
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status=EventCallbackResultStatus.ERROR,
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event_callback_id=callback.id,
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event_id=event.id,
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conversation_id=conversation_id,
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detail=str(exc),
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)
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self.db_session.add(stored_result)
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async def __aexit__(self, exc_type, exc_value, traceback):
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"""Stop using this event callback service."""
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pass
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class SQLEventCallbackServiceInjector(EventCallbackServiceInjector):
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async def inject(
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self, state: InjectorState, request: Request | None = None
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) -> AsyncGenerator[EventCallbackService, None]:
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from openhands.app_server.config import get_db_session
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async with get_db_session(state) as db_session:
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yield SQLEventCallbackService(db_session=db_session)
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