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100 lines
3.4 KiB
Python
100 lines
3.4 KiB
Python
from collections.abc import Mapping
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from typing import Any, Union
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from configs import dify_config
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from core.app.apps.pipeline.pipeline_generator import PipelineGenerator
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from core.app.entities.app_invoke_entities import InvokeFrom
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from models.dataset import Pipeline
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from models.model import Account, App, EndUser
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from models.workflow import Workflow
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from services.rag_pipeline.rag_pipeline import RagPipelineService
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class PipelineGenerateService:
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@classmethod
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def generate(
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cls,
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pipeline: Pipeline,
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user: Union[Account, EndUser],
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args: Mapping[str, Any],
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invoke_from: InvokeFrom,
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streaming: bool = True,
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):
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"""
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Pipeline Content Generate
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:param pipeline: pipeline
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:param user: user
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:param args: args
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:param invoke_from: invoke from
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:param streaming: streaming
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:return:
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"""
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try:
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workflow = cls._get_workflow(pipeline, invoke_from)
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return PipelineGenerator.convert_to_event_stream(
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PipelineGenerator().generate(
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pipeline=pipeline,
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workflow=workflow,
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user=user,
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args=args,
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invoke_from=invoke_from,
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streaming=streaming,
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call_depth=0,
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workflow_thread_pool_id=None,
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),
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)
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except Exception:
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raise
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@staticmethod
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def _get_max_active_requests(app_model: App) -> int:
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max_active_requests = app_model.max_active_requests
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if max_active_requests is None:
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max_active_requests = int(dify_config.APP_MAX_ACTIVE_REQUESTS)
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return max_active_requests
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@classmethod
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def generate_single_iteration(
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cls, pipeline: Pipeline, user: Account, node_id: str, args: Any, streaming: bool = True
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):
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workflow = cls._get_workflow(pipeline, InvokeFrom.DEBUGGER)
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return PipelineGenerator.convert_to_event_stream(
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PipelineGenerator().single_iteration_generate(
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pipeline=pipeline, workflow=workflow, node_id=node_id, user=user, args=args, streaming=streaming
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)
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)
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@classmethod
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def generate_single_loop(cls, pipeline: Pipeline, user: Account, node_id: str, args: Any, streaming: bool = True):
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workflow = cls._get_workflow(pipeline, InvokeFrom.DEBUGGER)
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return PipelineGenerator.convert_to_event_stream(
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PipelineGenerator().single_loop_generate(
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pipeline=pipeline, workflow=workflow, node_id=node_id, user=user, args=args, streaming=streaming
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)
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)
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@classmethod
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def _get_workflow(cls, pipeline: Pipeline, invoke_from: InvokeFrom) -> Workflow:
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"""
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Get workflow
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:param pipeline: pipeline
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:param invoke_from: invoke from
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:return:
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"""
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rag_pipeline_service = RagPipelineService()
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if invoke_from == InvokeFrom.DEBUGGER:
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# fetch draft workflow by app_model
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workflow = rag_pipeline_service.get_draft_workflow(pipeline=pipeline)
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if not workflow:
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raise ValueError("Workflow not initialized")
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else:
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# fetch published workflow by app_model
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workflow = rag_pipeline_service.get_published_workflow(pipeline=pipeline)
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if not workflow:
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raise ValueError("Workflow not published")
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return workflow
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