684 lines
25 KiB
Python
684 lines
25 KiB
Python
from functools import reduce
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from operator import add
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from typing import List, Literal, Optional, Union
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from sqlalchemy import select
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from sqlalchemy.orm import Session
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from letta.helpers.datetime_helpers import get_utc_time
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from letta.log import get_logger
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from letta.orm.errors import NoResultFound
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from letta.orm.job import Job as JobModel
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from letta.orm.job_messages import JobMessage
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from letta.orm.message import Message as MessageModel
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from letta.orm.sqlalchemy_base import AccessType
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from letta.orm.step import Step
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from letta.orm.step import Step as StepModel
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from letta.otel.tracing import trace_method
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from letta.schemas.enums import JobStatus, JobType, MessageRole
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from letta.schemas.job import BatchJob as PydanticBatchJob
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from letta.schemas.job import Job as PydanticJob
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from letta.schemas.job import JobUpdate, LettaRequestConfig
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from letta.schemas.letta_message import LettaMessage
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from letta.schemas.message import Message as PydanticMessage
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from letta.schemas.run import Run as PydanticRun
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from letta.schemas.step import Step as PydanticStep
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from letta.schemas.usage import LettaUsageStatistics
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from letta.schemas.user import User as PydanticUser
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from letta.server.db import db_registry
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from letta.utils import enforce_types
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logger = get_logger(__name__)
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class JobManager:
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"""Manager class to handle business logic related to Jobs."""
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@enforce_types
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@trace_method
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def create_job(
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self, pydantic_job: Union[PydanticJob, PydanticRun, PydanticBatchJob], actor: PydanticUser
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) -> Union[PydanticJob, PydanticRun, PydanticBatchJob]:
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"""Create a new job based on the JobCreate schema."""
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with db_registry.session() as session:
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# Associate the job with the user
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pydantic_job.user_id = actor.id
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job_data = pydantic_job.model_dump(to_orm=True)
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job = JobModel(**job_data)
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job.create(session, actor=actor) # Save job in the database
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return job.to_pydantic()
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@enforce_types
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@trace_method
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async def create_job_async(
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self, pydantic_job: Union[PydanticJob, PydanticRun, PydanticBatchJob], actor: PydanticUser
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) -> Union[PydanticJob, PydanticRun, PydanticBatchJob]:
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"""Create a new job based on the JobCreate schema."""
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async with db_registry.async_session() as session:
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# Associate the job with the user
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pydantic_job.user_id = actor.id
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job_data = pydantic_job.model_dump(to_orm=True)
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job = JobModel(**job_data)
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await job.create_async(session, actor=actor) # Save job in the database
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return job.to_pydantic()
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@enforce_types
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@trace_method
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def update_job_by_id(self, job_id: str, job_update: JobUpdate, actor: PydanticUser) -> PydanticJob:
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"""Update a job by its ID with the given JobUpdate object."""
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with db_registry.session() as session:
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# Fetch the job by ID
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job = self._verify_job_access(session=session, job_id=job_id, actor=actor, access=["write"])
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not_completed_before = not bool(job.completed_at)
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# Update job attributes with only the fields that were explicitly set
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update_data = job_update.model_dump(to_orm=True, exclude_unset=True, exclude_none=True)
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# Automatically update the completion timestamp if status is set to 'completed'
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for key, value in update_data.items():
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# Ensure completed_at is timezone-naive for database compatibility
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if key == "completed_at" and value is not None and hasattr(value, "replace"):
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value = value.replace(tzinfo=None)
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setattr(job, key, value)
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if job_update.status in {JobStatus.completed, JobStatus.failed} and not_completed_before:
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job.completed_at = get_utc_time().replace(tzinfo=None)
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if job.callback_url:
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self._dispatch_callback(job)
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# Save the updated job to the database
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job.update(db_session=session, actor=actor)
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return job.to_pydantic()
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@enforce_types
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@trace_method
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async def update_job_by_id_async(self, job_id: str, job_update: JobUpdate, actor: PydanticUser) -> PydanticJob:
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"""Update a job by its ID with the given JobUpdate object asynchronously."""
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async with db_registry.async_session() as session:
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# Fetch the job by ID
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job = await self._verify_job_access_async(session=session, job_id=job_id, actor=actor, access=["write"])
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not_completed_before = not bool(job.completed_at)
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# Update job attributes with only the fields that were explicitly set
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update_data = job_update.model_dump(to_orm=True, exclude_unset=True, exclude_none=True)
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# Automatically update the completion timestamp if status is set to 'completed'
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for key, value in update_data.items():
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# Ensure completed_at is timezone-naive for database compatibility
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if key == "completed_at" and value is not None and hasattr(value, "replace"):
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value = value.replace(tzinfo=None)
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setattr(job, key, value)
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if job_update.status in {JobStatus.completed, JobStatus.failed} and not_completed_before:
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job.completed_at = get_utc_time().replace(tzinfo=None)
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if job.callback_url:
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await self._dispatch_callback_async(job)
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# Save the updated job to the database
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await job.update_async(db_session=session, actor=actor)
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return job.to_pydantic()
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@enforce_types
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@trace_method
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def get_job_by_id(self, job_id: str, actor: PydanticUser) -> PydanticJob:
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"""Fetch a job by its ID."""
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with db_registry.session() as session:
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# Retrieve job by ID using the Job model's read method
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job = JobModel.read(db_session=session, identifier=job_id, actor=actor, access_type=AccessType.USER)
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return job.to_pydantic()
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@enforce_types
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@trace_method
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async def get_job_by_id_async(self, job_id: str, actor: PydanticUser) -> PydanticJob:
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"""Fetch a job by its ID asynchronously."""
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async with db_registry.async_session() as session:
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# Retrieve job by ID using the Job model's read method
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job = await JobModel.read_async(db_session=session, identifier=job_id, actor=actor, access_type=AccessType.USER)
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return job.to_pydantic()
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@enforce_types
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@trace_method
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def list_jobs(
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self,
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actor: PydanticUser,
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before: Optional[str] = None,
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after: Optional[str] = None,
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limit: Optional[int] = 50,
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statuses: Optional[List[JobStatus]] = None,
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job_type: JobType = JobType.JOB,
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ascending: bool = True,
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) -> List[PydanticJob]:
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"""List all jobs with optional pagination and status filter."""
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with db_registry.session() as session:
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filter_kwargs = {"user_id": actor.id, "job_type": job_type}
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# Add status filter if provided
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if statuses:
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filter_kwargs["status"] = statuses
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jobs = JobModel.list(
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db_session=session,
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before=before,
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after=after,
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limit=limit,
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ascending=ascending,
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**filter_kwargs,
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)
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return [job.to_pydantic() for job in jobs]
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@enforce_types
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@trace_method
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async def list_jobs_async(
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self,
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actor: PydanticUser,
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before: Optional[str] = None,
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after: Optional[str] = None,
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limit: Optional[int] = 50,
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statuses: Optional[List[JobStatus]] = None,
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job_type: JobType = JobType.JOB,
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ascending: bool = True,
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source_id: Optional[str] = None,
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) -> List[PydanticJob]:
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"""List all jobs with optional pagination and status filter."""
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async with db_registry.async_session() as session:
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filter_kwargs = {"user_id": actor.id, "job_type": job_type}
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# Add status filter if provided
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if statuses:
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filter_kwargs["status"] = statuses
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if source_id:
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filter_kwargs["metadata_.source_id"] = source_id
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jobs = await JobModel.list_async(
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db_session=session,
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before=before,
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after=after,
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limit=limit,
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ascending=ascending,
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**filter_kwargs,
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)
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return [job.to_pydantic() for job in jobs]
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@enforce_types
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@trace_method
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def delete_job_by_id(self, job_id: str, actor: PydanticUser) -> PydanticJob:
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"""Delete a job by its ID."""
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with db_registry.session() as session:
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job = self._verify_job_access(session=session, job_id=job_id, actor=actor)
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job.hard_delete(db_session=session, actor=actor)
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return job.to_pydantic()
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@enforce_types
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@trace_method
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async def delete_job_by_id_async(self, job_id: str, actor: PydanticUser) -> PydanticJob:
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"""Delete a job by its ID."""
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async with db_registry.async_session() as session:
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job = await self._verify_job_access_async(session=session, job_id=job_id, actor=actor)
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await job.hard_delete_async(db_session=session, actor=actor)
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return job.to_pydantic()
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@enforce_types
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@trace_method
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def get_job_messages(
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self,
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job_id: str,
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actor: PydanticUser,
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before: Optional[str] = None,
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after: Optional[str] = None,
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limit: Optional[int] = 100,
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role: Optional[MessageRole] = None,
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ascending: bool = True,
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) -> List[PydanticMessage]:
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"""
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Get all messages associated with a job.
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Args:
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job_id: The ID of the job to get messages for
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actor: The user making the request
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before: Cursor for pagination
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after: Cursor for pagination
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limit: Maximum number of messages to return
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role: Optional filter for message role
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ascending: Optional flag to sort in ascending order
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Returns:
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List of messages associated with the job
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Raises:
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NoResultFound: If the job does not exist or user does not have access
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"""
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with db_registry.session() as session:
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# Build filters
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filters = {}
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if role is not None:
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filters["role"] = role
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# Get messages
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messages = MessageModel.list(
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db_session=session,
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before=before,
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after=after,
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ascending=ascending,
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limit=limit,
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actor=actor,
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join_model=JobMessage,
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join_conditions=[MessageModel.id == JobMessage.message_id, JobMessage.job_id == job_id],
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**filters,
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)
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return [message.to_pydantic() for message in messages]
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@enforce_types
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@trace_method
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def get_job_steps(
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self,
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job_id: str,
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actor: PydanticUser,
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before: Optional[str] = None,
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after: Optional[str] = None,
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limit: Optional[int] = 100,
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ascending: bool = True,
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) -> List[PydanticStep]:
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"""
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Get all steps associated with a job.
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Args:
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job_id: The ID of the job to get steps for
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actor: The user making the request
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before: Cursor for pagination
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after: Cursor for pagination
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limit: Maximum number of steps to return
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ascending: Optional flag to sort in ascending order
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Returns:
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List of steps associated with the job
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Raises:
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NoResultFound: If the job does not exist or user does not have access
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"""
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with db_registry.session() as session:
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# Build filters
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filters = {}
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filters["job_id"] = job_id
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# Get steps
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steps = StepModel.list(
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db_session=session,
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before=before,
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after=after,
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ascending=ascending,
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limit=limit,
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actor=actor,
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**filters,
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)
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return [step.to_pydantic() for step in steps]
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@enforce_types
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@trace_method
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def add_message_to_job(self, job_id: str, message_id: str, actor: PydanticUser) -> None:
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"""
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Associate a message with a job by creating a JobMessage record.
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Each message can only be associated with one job.
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Args:
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job_id: The ID of the job
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message_id: The ID of the message to associate
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actor: The user making the request
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Raises:
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NoResultFound: If the job does not exist or user does not have access
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"""
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with db_registry.session() as session:
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# First verify job exists and user has access
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self._verify_job_access(session, job_id, actor, access=["write"])
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# Create new JobMessage association
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job_message = JobMessage(job_id=job_id, message_id=message_id)
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session.add(job_message)
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session.commit()
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@enforce_types
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@trace_method
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async def add_messages_to_job_async(self, job_id: str, message_ids: List[str], actor: PydanticUser) -> None:
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"""
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Associate a message with a job by creating a JobMessage record.
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Each message can only be associated with one job.
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Args:
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job_id: The ID of the job
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message_id: The ID of the message to associate
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actor: The user making the request
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Raises:
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NoResultFound: If the job does not exist or user does not have access
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"""
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if not message_ids:
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return
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async with db_registry.async_session() as session:
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# First verify job exists and user has access
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await self._verify_job_access_async(session, job_id, actor, access=["write"])
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# Create new JobMessage associations
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job_messages = [JobMessage(job_id=job_id, message_id=message_id) for message_id in message_ids]
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session.add_all(job_messages)
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await session.commit()
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@enforce_types
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@trace_method
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def get_job_usage(self, job_id: str, actor: PydanticUser) -> LettaUsageStatistics:
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"""
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Get usage statistics for a job.
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Args:
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job_id: The ID of the job
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actor: The user making the request
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Returns:
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Usage statistics for the job
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Raises:
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NoResultFound: If the job does not exist or user does not have access
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"""
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with db_registry.session() as session:
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# First verify job exists and user has access
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self._verify_job_access(session, job_id, actor)
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# Get the latest usage statistics for the job
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latest_stats = session.query(Step).filter(Step.job_id == job_id).order_by(Step.created_at.desc()).all()
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if not latest_stats:
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return LettaUsageStatistics(
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completion_tokens=0,
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prompt_tokens=0,
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total_tokens=0,
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step_count=0,
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)
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return LettaUsageStatistics(
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completion_tokens=reduce(add, (step.completion_tokens or 0 for step in latest_stats), 0),
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prompt_tokens=reduce(add, (step.prompt_tokens or 0 for step in latest_stats), 0),
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total_tokens=reduce(add, (step.total_tokens or 0 for step in latest_stats), 0),
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step_count=len(latest_stats),
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)
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@enforce_types
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@trace_method
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def add_job_usage(
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self,
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job_id: str,
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usage: LettaUsageStatistics,
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step_id: Optional[str] = None,
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actor: PydanticUser = None,
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) -> None:
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"""
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Add usage statistics for a job.
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Args:
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job_id: The ID of the job
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usage: Usage statistics for the job
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step_id: Optional ID of the specific step within the job
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actor: The user making the request
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Raises:
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NoResultFound: If the job does not exist or user does not have access
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"""
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with db_registry.session() as session:
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# First verify job exists and user has access
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self._verify_job_access(session, job_id, actor, access=["write"])
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# Manually log step with usage data
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# TODO(@caren): log step under the hood and remove this
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usage_stats = Step(
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job_id=job_id,
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completion_tokens=usage.completion_tokens,
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prompt_tokens=usage.prompt_tokens,
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total_tokens=usage.total_tokens,
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step_count=usage.step_count,
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step_id=step_id,
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)
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if actor:
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usage_stats._set_created_and_updated_by_fields(actor.id)
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session.add(usage_stats)
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session.commit()
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@enforce_types
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@trace_method
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def get_run_messages(
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self,
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run_id: str,
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actor: PydanticUser,
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before: Optional[str] = None,
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after: Optional[str] = None,
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limit: Optional[int] = 100,
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role: Optional[MessageRole] = None,
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ascending: bool = True,
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) -> List[LettaMessage]:
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"""
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Get messages associated with a job using cursor-based pagination.
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This is a wrapper around get_job_messages that provides cursor-based pagination.
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Args:
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job_id: The ID of the job to get messages for
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actor: The user making the request
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before: Message ID to get messages after
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after: Message ID to get messages before
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limit: Maximum number of messages to return
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ascending: Whether to return messages in ascending order
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role: Optional role filter
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Returns:
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List of LettaMessages associated with the job
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Raises:
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NoResultFound: If the job does not exist or user does not have access
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"""
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messages = self.get_job_messages(
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job_id=run_id,
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actor=actor,
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before=before,
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after=after,
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limit=limit,
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role=role,
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ascending=ascending,
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)
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request_config = self._get_run_request_config(run_id)
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print("request_config", request_config)
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messages = PydanticMessage.to_letta_messages_from_list(
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messages=messages,
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use_assistant_message=request_config["use_assistant_message"],
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assistant_message_tool_name=request_config["assistant_message_tool_name"],
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assistant_message_tool_kwarg=request_config["assistant_message_tool_kwarg"],
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reverse=not ascending,
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)
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if request_config["include_return_message_types"]:
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messages = [msg for msg in messages if msg.message_type in request_config["include_return_message_types"]]
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return messages
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|
|
|
@enforce_types
|
|
@trace_method
|
|
def get_step_messages(
|
|
self,
|
|
run_id: str,
|
|
actor: PydanticUser,
|
|
before: Optional[str] = None,
|
|
after: Optional[str] = None,
|
|
limit: Optional[int] = 100,
|
|
role: Optional[MessageRole] = None,
|
|
ascending: bool = True,
|
|
) -> List[LettaMessage]:
|
|
"""
|
|
Get steps associated with a job using cursor-based pagination.
|
|
This is a wrapper around get_job_messages that provides cursor-based pagination.
|
|
|
|
Args:
|
|
run_id: The ID of the run to get steps for
|
|
actor: The user making the request
|
|
before: Message ID to get messages after
|
|
after: Message ID to get messages before
|
|
limit: Maximum number of messages to return
|
|
ascending: Whether to return messages in ascending order
|
|
role: Optional role filter
|
|
|
|
Returns:
|
|
List of Steps associated with the job
|
|
|
|
Raises:
|
|
NoResultFound: If the job does not exist or user does not have access
|
|
"""
|
|
messages = self.get_job_messages(
|
|
job_id=run_id,
|
|
actor=actor,
|
|
before=before,
|
|
after=after,
|
|
limit=limit,
|
|
role=role,
|
|
ascending=ascending,
|
|
)
|
|
|
|
request_config = self._get_run_request_config(run_id)
|
|
|
|
messages = PydanticMessage.to_letta_messages_from_list(
|
|
messages=messages,
|
|
use_assistant_message=request_config["use_assistant_message"],
|
|
assistant_message_tool_name=request_config["assistant_message_tool_name"],
|
|
assistant_message_tool_kwarg=request_config["assistant_message_tool_kwarg"],
|
|
)
|
|
|
|
return messages
|
|
|
|
def _verify_job_access(
|
|
self,
|
|
session: Session,
|
|
job_id: str,
|
|
actor: PydanticUser,
|
|
access: List[Literal["read", "write", "delete"]] = ["read"],
|
|
) -> JobModel:
|
|
"""
|
|
Verify that a job exists and the user has the required access.
|
|
|
|
Args:
|
|
session: The database session
|
|
job_id: The ID of the job to verify
|
|
actor: The user making the request
|
|
|
|
Returns:
|
|
The job if it exists and the user has access
|
|
|
|
Raises:
|
|
NoResultFound: If the job does not exist or user does not have access
|
|
"""
|
|
job_query = select(JobModel).where(JobModel.id == job_id)
|
|
job_query = JobModel.apply_access_predicate(job_query, actor, access, AccessType.USER)
|
|
job = session.execute(job_query).scalar_one_or_none()
|
|
if not job:
|
|
raise NoResultFound(f"Job with id {job_id} does not exist or user does not have access")
|
|
return job
|
|
|
|
async def _verify_job_access_async(
|
|
self,
|
|
session: Session,
|
|
job_id: str,
|
|
actor: PydanticUser,
|
|
access: List[Literal["read", "write", "delete"]] = ["read"],
|
|
) -> JobModel:
|
|
"""
|
|
Verify that a job exists and the user has the required access.
|
|
|
|
Args:
|
|
session: The database session
|
|
job_id: The ID of the job to verify
|
|
actor: The user making the request
|
|
|
|
Returns:
|
|
The job if it exists and the user has access
|
|
|
|
Raises:
|
|
NoResultFound: If the job does not exist or user does not have access
|
|
"""
|
|
job_query = select(JobModel).where(JobModel.id == job_id)
|
|
job_query = JobModel.apply_access_predicate(job_query, actor, access, AccessType.USER)
|
|
result = await session.execute(job_query)
|
|
job = result.scalar_one_or_none()
|
|
if not job:
|
|
raise NoResultFound(f"Job with id {job_id} does not exist or user does not have access")
|
|
return job
|
|
|
|
def _get_run_request_config(self, run_id: str) -> LettaRequestConfig:
|
|
"""
|
|
Get the request config for a job.
|
|
|
|
Args:
|
|
job_id: The ID of the job to get messages for
|
|
|
|
Returns:
|
|
The request config for the job
|
|
"""
|
|
with db_registry.session() as session:
|
|
job = session.query(JobModel).filter(JobModel.id == run_id).first()
|
|
request_config = job.request_config or LettaRequestConfig()
|
|
return request_config
|
|
|
|
def _dispatch_callback(self, job: JobModel) -> None:
|
|
"""
|
|
POST a standard JSON payload to job.callback_url
|
|
and record timestamp + HTTP status.
|
|
"""
|
|
|
|
payload = {
|
|
"job_id": job.id,
|
|
"status": job.status,
|
|
"completed_at": job.completed_at.isoformat() if job.completed_at else None,
|
|
"metadata": job.metadata_,
|
|
}
|
|
try:
|
|
import httpx
|
|
|
|
resp = httpx.post(job.callback_url, json=payload, timeout=5.0)
|
|
job.callback_sent_at = get_utc_time().replace(tzinfo=None)
|
|
job.callback_status_code = resp.status_code
|
|
|
|
except Exception as e:
|
|
error_message = f"Failed to dispatch callback for job {job.id} to {job.callback_url}: {str(e)}"
|
|
logger.error(error_message)
|
|
# Record the failed attempt
|
|
job.callback_sent_at = get_utc_time().replace(tzinfo=None)
|
|
job.callback_error = error_message
|
|
# Continue silently - callback failures should not affect job completion
|
|
|
|
async def _dispatch_callback_async(self, job: JobModel) -> None:
|
|
"""
|
|
POST a standard JSON payload to job.callback_url and record timestamp + HTTP status asynchronously.
|
|
"""
|
|
payload = {
|
|
"job_id": job.id,
|
|
"status": job.status,
|
|
"completed_at": job.completed_at.isoformat() if job.completed_at else None,
|
|
"metadata": job.metadata_,
|
|
}
|
|
|
|
try:
|
|
import httpx
|
|
|
|
async with httpx.AsyncClient() as client:
|
|
resp = await client.post(job.callback_url, json=payload, timeout=5.0)
|
|
# Ensure timestamp is timezone-naive for DB compatibility
|
|
job.callback_sent_at = get_utc_time().replace(tzinfo=None)
|
|
job.callback_status_code = resp.status_code
|
|
except Exception as e:
|
|
error_message = f"Failed to dispatch callback for job {job.id} to {job.callback_url}: {str(e)}"
|
|
logger.error(error_message)
|
|
# Record the failed attempt
|
|
job.callback_sent_at = get_utc_time().replace(tzinfo=None)
|
|
job.callback_error = error_message
|
|
# Continue silently - callback failures should not affect job completion
|