mirror of
https://github.com/langgenius/dify.git
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657 lines
28 KiB
Python
657 lines
28 KiB
Python
import json
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import logging
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import threading
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import uuid
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from typing import cast, Optional, Any, Union, Generator, Tuple
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from flask import Flask, current_app
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from pydantic import ValidationError
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from core.app_runner.agent_app_runner import AgentApplicationRunner
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from core.app_runner.basic_app_runner import BasicApplicationRunner
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from core.app_runner.generate_task_pipeline import GenerateTaskPipeline
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from core.entities.application_entities import ApplicationGenerateEntity, AppOrchestrationConfigEntity, \
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ModelConfigEntity, PromptTemplateEntity, AdvancedChatPromptTemplateEntity, \
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AdvancedCompletionPromptTemplateEntity, ExternalDataVariableEntity, DatasetEntity, DatasetRetrieveConfigEntity, \
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AgentEntity, AgentToolEntity, FileUploadEntity, SensitiveWordAvoidanceEntity, InvokeFrom
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from core.entities.model_entities import ModelStatus
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from core.file.file_obj import FileObj
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from core.errors.error import QuotaExceededError, ProviderTokenNotInitError, ModelCurrentlyNotSupportError
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from core.model_runtime.entities.message_entities import PromptMessageRole
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from core.model_runtime.entities.model_entities import ModelType
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from core.model_runtime.errors.invoke import InvokeAuthorizationError, InvokeError
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from core.model_runtime.model_providers.__base.large_language_model import LargeLanguageModel
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from core.prompt.prompt_template import PromptTemplateParser
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from core.provider_manager import ProviderManager
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from core.application_queue_manager import ApplicationQueueManager, ConversationTaskStoppedException
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from extensions.ext_database import db
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from models.account import Account
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from models.model import EndUser, Conversation, Message, MessageFile, App
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logger = logging.getLogger(__name__)
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class ApplicationManager:
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"""
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This class is responsible for managing application
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"""
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def generate(self, tenant_id: str,
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app_id: str,
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app_model_config_id: str,
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app_model_config_dict: dict,
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app_model_config_override: bool,
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user: Union[Account, EndUser],
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invoke_from: InvokeFrom,
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inputs: dict[str, str],
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query: Optional[str] = None,
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files: Optional[list[FileObj]] = None,
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conversation: Optional[Conversation] = None,
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stream: bool = False,
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extras: Optional[dict[str, Any]] = None) \
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-> Union[dict, Generator]:
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"""
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Generate App response.
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:param tenant_id: workspace ID
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:param app_id: app ID
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:param app_model_config_id: app model config id
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:param app_model_config_dict: app model config dict
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:param app_model_config_override: app model config override
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:param user: account or end user
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:param invoke_from: invoke from source
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:param inputs: inputs
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:param query: query
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:param files: file obj list
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:param conversation: conversation
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:param stream: is stream
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:param extras: extras
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"""
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# init task id
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task_id = str(uuid.uuid4())
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# init application generate entity
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application_generate_entity = ApplicationGenerateEntity(
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task_id=task_id,
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tenant_id=tenant_id,
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app_id=app_id,
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app_model_config_id=app_model_config_id,
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app_model_config_dict=app_model_config_dict,
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app_orchestration_config_entity=self._convert_from_app_model_config_dict(
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tenant_id=tenant_id,
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app_model_config_dict=app_model_config_dict
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),
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app_model_config_override=app_model_config_override,
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conversation_id=conversation.id if conversation else None,
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inputs=conversation.inputs if conversation else inputs,
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query=query.replace('\x00', '') if query else None,
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files=files if files else [],
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user_id=user.id,
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stream=stream,
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invoke_from=invoke_from,
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extras=extras
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)
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# init generate records
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(
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conversation,
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message
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) = self._init_generate_records(application_generate_entity)
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# init queue manager
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queue_manager = ApplicationQueueManager(
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task_id=application_generate_entity.task_id,
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user_id=application_generate_entity.user_id,
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invoke_from=application_generate_entity.invoke_from,
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conversation_id=conversation.id,
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app_mode=conversation.mode,
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message_id=message.id
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)
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# new thread
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worker_thread = threading.Thread(target=self._generate_worker, kwargs={
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'flask_app': current_app._get_current_object(),
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'application_generate_entity': application_generate_entity,
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'queue_manager': queue_manager,
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'conversation_id': conversation.id,
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'message_id': message.id,
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})
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worker_thread.start()
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# return response or stream generator
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return self._handle_response(
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application_generate_entity=application_generate_entity,
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queue_manager=queue_manager,
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conversation=conversation,
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message=message,
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stream=stream
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)
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def _generate_worker(self, flask_app: Flask,
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application_generate_entity: ApplicationGenerateEntity,
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queue_manager: ApplicationQueueManager,
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conversation_id: str,
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message_id: str) -> None:
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"""
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Generate worker in a new thread.
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:param flask_app: Flask app
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:param application_generate_entity: application generate entity
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:param queue_manager: queue manager
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:param conversation_id: conversation ID
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:param message_id: message ID
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:return:
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"""
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with flask_app.app_context():
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try:
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# get conversation and message
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conversation = self._get_conversation(conversation_id)
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message = self._get_message(message_id)
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if application_generate_entity.app_orchestration_config_entity.agent:
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# agent app
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runner = AgentApplicationRunner()
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runner.run(
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application_generate_entity=application_generate_entity,
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queue_manager=queue_manager,
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conversation=conversation,
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message=message
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)
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else:
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# basic app
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runner = BasicApplicationRunner()
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runner.run(
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application_generate_entity=application_generate_entity,
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queue_manager=queue_manager,
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conversation=conversation,
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message=message
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)
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except ConversationTaskStoppedException:
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pass
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except InvokeAuthorizationError:
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queue_manager.publish_error(InvokeAuthorizationError('Incorrect API key provided'))
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except ValidationError as e:
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logger.exception("Validation Error when generating")
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queue_manager.publish_error(e)
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except (ValueError, InvokeError) as e:
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queue_manager.publish_error(e)
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except Exception as e:
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logger.exception("Unknown Error when generating")
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queue_manager.publish_error(e)
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finally:
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db.session.remove()
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def _handle_response(self, application_generate_entity: ApplicationGenerateEntity,
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queue_manager: ApplicationQueueManager,
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conversation: Conversation,
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message: Message,
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stream: bool = False) -> Union[dict, Generator]:
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"""
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Handle response.
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:param application_generate_entity: application generate entity
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:param queue_manager: queue manager
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:param conversation: conversation
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:param message: message
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:param stream: is stream
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:return:
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"""
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# init generate task pipeline
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generate_task_pipeline = GenerateTaskPipeline(
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application_generate_entity=application_generate_entity,
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queue_manager=queue_manager,
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conversation=conversation,
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message=message
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)
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try:
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return generate_task_pipeline.process(stream=stream)
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except ValueError as e:
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if e.args[0] == "I/O operation on closed file.": # ignore this error
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raise ConversationTaskStoppedException()
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else:
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logger.exception(e)
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raise e
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finally:
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db.session.remove()
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def _convert_from_app_model_config_dict(self, tenant_id: str, app_model_config_dict: dict) \
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-> AppOrchestrationConfigEntity:
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"""
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Convert app model config dict to entity.
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:param tenant_id: tenant ID
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:param app_model_config_dict: app model config dict
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:raises ProviderTokenNotInitError: provider token not init error
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:return: app orchestration config entity
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"""
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properties = {}
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copy_app_model_config_dict = app_model_config_dict.copy()
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provider_manager = ProviderManager()
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provider_model_bundle = provider_manager.get_provider_model_bundle(
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tenant_id=tenant_id,
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provider=copy_app_model_config_dict['model']['provider'],
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model_type=ModelType.LLM
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)
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provider_name = provider_model_bundle.configuration.provider.provider
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model_name = copy_app_model_config_dict['model']['name']
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model_type_instance = provider_model_bundle.model_type_instance
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model_type_instance = cast(LargeLanguageModel, model_type_instance)
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# check model credentials
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model_credentials = provider_model_bundle.configuration.get_current_credentials(
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model_type=ModelType.LLM,
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model=copy_app_model_config_dict['model']['name']
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)
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if model_credentials is None:
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raise ProviderTokenNotInitError(f"Model {model_name} credentials is not initialized.")
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# check model
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provider_model = provider_model_bundle.configuration.get_provider_model(
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model=copy_app_model_config_dict['model']['name'],
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model_type=ModelType.LLM
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)
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if provider_model is None:
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model_name = copy_app_model_config_dict['model']['name']
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raise ValueError(f"Model {model_name} not exist.")
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if provider_model.status == ModelStatus.NO_CONFIGURE:
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raise ProviderTokenNotInitError(f"Model {model_name} credentials is not initialized.")
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elif provider_model.status == ModelStatus.NO_PERMISSION:
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raise ModelCurrentlyNotSupportError(f"Dify Hosted OpenAI {model_name} currently not support.")
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elif provider_model.status == ModelStatus.QUOTA_EXCEEDED:
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raise QuotaExceededError(f"Model provider {provider_name} quota exceeded.")
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# model config
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completion_params = copy_app_model_config_dict['model'].get('completion_params')
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stop = []
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if 'stop' in completion_params:
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stop = completion_params['stop']
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del completion_params['stop']
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# get model mode
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model_mode = copy_app_model_config_dict['model'].get('mode')
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if not model_mode:
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mode_enum = model_type_instance.get_model_mode(
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model=copy_app_model_config_dict['model']['name'],
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credentials=model_credentials
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)
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model_mode = mode_enum.value
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model_schema = model_type_instance.get_model_schema(
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copy_app_model_config_dict['model']['name'],
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model_credentials
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)
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if not model_schema:
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raise ValueError(f"Model {model_name} not exist.")
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properties['model_config'] = ModelConfigEntity(
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provider=copy_app_model_config_dict['model']['provider'],
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model=copy_app_model_config_dict['model']['name'],
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model_schema=model_schema,
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mode=model_mode,
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provider_model_bundle=provider_model_bundle,
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credentials=model_credentials,
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parameters=completion_params,
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stop=stop,
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)
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# prompt template
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prompt_type = PromptTemplateEntity.PromptType.value_of(copy_app_model_config_dict['prompt_type'])
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if prompt_type == PromptTemplateEntity.PromptType.SIMPLE:
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simple_prompt_template = copy_app_model_config_dict.get("pre_prompt", "")
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properties['prompt_template'] = PromptTemplateEntity(
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prompt_type=prompt_type,
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simple_prompt_template=simple_prompt_template
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)
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else:
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advanced_chat_prompt_template = None
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chat_prompt_config = copy_app_model_config_dict.get("chat_prompt_config", {})
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if chat_prompt_config:
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chat_prompt_messages = []
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for message in chat_prompt_config.get("prompt", []):
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chat_prompt_messages.append({
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"text": message["text"],
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"role": PromptMessageRole.value_of(message["role"])
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})
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advanced_chat_prompt_template = AdvancedChatPromptTemplateEntity(
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messages=chat_prompt_messages
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)
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advanced_completion_prompt_template = None
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completion_prompt_config = copy_app_model_config_dict.get("completion_prompt_config", {})
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if completion_prompt_config:
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completion_prompt_template_params = {
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'prompt': completion_prompt_config['prompt']['text'],
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}
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if 'conversation_histories_role' in completion_prompt_config:
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completion_prompt_template_params['role_prefix'] = {
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'user': completion_prompt_config['conversation_histories_role']['user_prefix'],
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'assistant': completion_prompt_config['conversation_histories_role']['assistant_prefix']
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}
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advanced_completion_prompt_template = AdvancedCompletionPromptTemplateEntity(
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**completion_prompt_template_params
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)
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properties['prompt_template'] = PromptTemplateEntity(
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prompt_type=prompt_type,
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advanced_chat_prompt_template=advanced_chat_prompt_template,
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advanced_completion_prompt_template=advanced_completion_prompt_template
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)
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# external data variables
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properties['external_data_variables'] = []
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external_data_tools = copy_app_model_config_dict.get('external_data_tools', [])
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for external_data_tool in external_data_tools:
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if 'enabled' not in external_data_tool or not external_data_tool['enabled']:
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continue
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properties['external_data_variables'].append(
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ExternalDataVariableEntity(
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variable=external_data_tool['variable'],
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type=external_data_tool['type'],
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config=external_data_tool['config']
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)
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)
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# show retrieve source
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show_retrieve_source = False
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retriever_resource_dict = copy_app_model_config_dict.get('retriever_resource')
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if retriever_resource_dict:
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if 'enabled' in retriever_resource_dict and retriever_resource_dict['enabled']:
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show_retrieve_source = True
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properties['show_retrieve_source'] = show_retrieve_source
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if 'agent_mode' in copy_app_model_config_dict and copy_app_model_config_dict['agent_mode'] \
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and 'enabled' in copy_app_model_config_dict['agent_mode'] and copy_app_model_config_dict['agent_mode'][
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'enabled']:
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agent_dict = copy_app_model_config_dict.get('agent_mode')
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agent_strategy = agent_dict.get('strategy', 'router')
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if agent_strategy in ['router', 'react_router']:
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dataset_ids = []
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for tool in agent_dict.get('tools', []):
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key = list(tool.keys())[0]
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if key != 'dataset':
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continue
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tool_item = tool[key]
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if "enabled" not in tool_item or not tool_item["enabled"]:
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continue
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dataset_id = tool_item['id']
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dataset_ids.append(dataset_id)
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dataset_configs = copy_app_model_config_dict.get('dataset_configs', {'retrieval_model': 'single'})
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query_variable = copy_app_model_config_dict.get('dataset_query_variable')
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if dataset_configs['retrieval_model'] == 'single':
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properties['dataset'] = DatasetEntity(
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dataset_ids=dataset_ids,
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retrieve_config=DatasetRetrieveConfigEntity(
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query_variable=query_variable,
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retrieve_strategy=DatasetRetrieveConfigEntity.RetrieveStrategy.value_of(
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dataset_configs['retrieval_model']
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),
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single_strategy=agent_strategy
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)
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)
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else:
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properties['dataset'] = DatasetEntity(
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dataset_ids=dataset_ids,
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retrieve_config=DatasetRetrieveConfigEntity(
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query_variable=query_variable,
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retrieve_strategy=DatasetRetrieveConfigEntity.RetrieveStrategy.value_of(
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dataset_configs['retrieval_model']
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),
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top_k=dataset_configs.get('top_k'),
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score_threshold=dataset_configs.get('score_threshold'),
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reranking_model=dataset_configs.get('reranking_model')
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)
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)
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else:
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if agent_strategy == 'react':
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strategy = AgentEntity.Strategy.CHAIN_OF_THOUGHT
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else:
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strategy = AgentEntity.Strategy.FUNCTION_CALLING
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agent_tools = []
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for tool in agent_dict.get('tools', []):
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key = list(tool.keys())[0]
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tool_item = tool[key]
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agent_tool_properties = {
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"tool_id": key
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}
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if "enabled" not in tool_item or not tool_item["enabled"]:
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continue
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agent_tool_properties["config"] = tool_item
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agent_tools.append(AgentToolEntity(**agent_tool_properties))
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properties['agent'] = AgentEntity(
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provider=properties['model_config'].provider,
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model=properties['model_config'].model,
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strategy=strategy,
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tools=agent_tools
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)
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# file upload
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file_upload_dict = copy_app_model_config_dict.get('file_upload')
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if file_upload_dict:
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if 'image' in file_upload_dict and file_upload_dict['image']:
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if 'enabled' in file_upload_dict['image'] and file_upload_dict['image']['enabled']:
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properties['file_upload'] = FileUploadEntity(
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image_config={
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'number_limits': file_upload_dict['image']['number_limits'],
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'detail': file_upload_dict['image']['detail'],
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'transfer_methods': file_upload_dict['image']['transfer_methods']
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}
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)
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# opening statement
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properties['opening_statement'] = copy_app_model_config_dict.get('opening_statement')
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# suggested questions after answer
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suggested_questions_after_answer_dict = copy_app_model_config_dict.get('suggested_questions_after_answer')
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if suggested_questions_after_answer_dict:
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if 'enabled' in suggested_questions_after_answer_dict and suggested_questions_after_answer_dict['enabled']:
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properties['suggested_questions_after_answer'] = True
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# more like this
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more_like_this_dict = copy_app_model_config_dict.get('more_like_this')
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if more_like_this_dict:
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if 'enabled' in more_like_this_dict and more_like_this_dict['enabled']:
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properties['more_like_this'] = True
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# speech to text
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speech_to_text_dict = copy_app_model_config_dict.get('speech_to_text')
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if speech_to_text_dict:
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if 'enabled' in speech_to_text_dict and speech_to_text_dict['enabled']:
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properties['speech_to_text'] = True
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# sensitive word avoidance
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sensitive_word_avoidance_dict = copy_app_model_config_dict.get('sensitive_word_avoidance')
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if sensitive_word_avoidance_dict:
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if 'enabled' in sensitive_word_avoidance_dict and sensitive_word_avoidance_dict['enabled']:
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properties['sensitive_word_avoidance'] = SensitiveWordAvoidanceEntity(
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type=sensitive_word_avoidance_dict.get('type'),
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config=sensitive_word_avoidance_dict.get('config'),
|
|
)
|
|
|
|
return AppOrchestrationConfigEntity(**properties)
|
|
|
|
def _init_generate_records(self, application_generate_entity: ApplicationGenerateEntity) \
|
|
-> Tuple[Conversation, Message]:
|
|
"""
|
|
Initialize generate records
|
|
:param application_generate_entity: application generate entity
|
|
:return:
|
|
"""
|
|
app_orchestration_config_entity = application_generate_entity.app_orchestration_config_entity
|
|
|
|
model_type_instance = app_orchestration_config_entity.model_config.provider_model_bundle.model_type_instance
|
|
model_type_instance = cast(LargeLanguageModel, model_type_instance)
|
|
model_schema = model_type_instance.get_model_schema(
|
|
model=app_orchestration_config_entity.model_config.model,
|
|
credentials=app_orchestration_config_entity.model_config.credentials
|
|
)
|
|
|
|
app_record = (db.session.query(App)
|
|
.filter(App.id == application_generate_entity.app_id).first())
|
|
|
|
app_mode = app_record.mode
|
|
|
|
# get from source
|
|
end_user_id = None
|
|
account_id = None
|
|
if application_generate_entity.invoke_from in [InvokeFrom.WEB_APP, InvokeFrom.SERVICE_API]:
|
|
from_source = 'api'
|
|
end_user_id = application_generate_entity.user_id
|
|
else:
|
|
from_source = 'console'
|
|
account_id = application_generate_entity.user_id
|
|
|
|
override_model_configs = None
|
|
if application_generate_entity.app_model_config_override:
|
|
override_model_configs = application_generate_entity.app_model_config_dict
|
|
|
|
introduction = ''
|
|
if app_mode == 'chat':
|
|
# get conversation introduction
|
|
introduction = self._get_conversation_introduction(application_generate_entity)
|
|
|
|
if not application_generate_entity.conversation_id:
|
|
conversation = Conversation(
|
|
app_id=app_record.id,
|
|
app_model_config_id=application_generate_entity.app_model_config_id,
|
|
model_provider=app_orchestration_config_entity.model_config.provider,
|
|
model_id=app_orchestration_config_entity.model_config.model,
|
|
override_model_configs=json.dumps(override_model_configs) if override_model_configs else None,
|
|
mode=app_mode,
|
|
name='New conversation',
|
|
inputs=application_generate_entity.inputs,
|
|
introduction=introduction,
|
|
system_instruction="",
|
|
system_instruction_tokens=0,
|
|
status='normal',
|
|
from_source=from_source,
|
|
from_end_user_id=end_user_id,
|
|
from_account_id=account_id,
|
|
)
|
|
|
|
db.session.add(conversation)
|
|
db.session.commit()
|
|
else:
|
|
conversation = (
|
|
db.session.query(Conversation)
|
|
.filter(
|
|
Conversation.id == application_generate_entity.conversation_id,
|
|
Conversation.app_id == app_record.id
|
|
).first()
|
|
)
|
|
|
|
currency = model_schema.pricing.currency if model_schema.pricing else 'USD'
|
|
|
|
message = Message(
|
|
app_id=app_record.id,
|
|
model_provider=app_orchestration_config_entity.model_config.provider,
|
|
model_id=app_orchestration_config_entity.model_config.model,
|
|
override_model_configs=json.dumps(override_model_configs) if override_model_configs else None,
|
|
conversation_id=conversation.id,
|
|
inputs=application_generate_entity.inputs,
|
|
query=application_generate_entity.query or "",
|
|
message="",
|
|
message_tokens=0,
|
|
message_unit_price=0,
|
|
message_price_unit=0,
|
|
answer="",
|
|
answer_tokens=0,
|
|
answer_unit_price=0,
|
|
answer_price_unit=0,
|
|
provider_response_latency=0,
|
|
total_price=0,
|
|
currency=currency,
|
|
from_source=from_source,
|
|
from_end_user_id=end_user_id,
|
|
from_account_id=account_id,
|
|
agent_based=app_orchestration_config_entity.agent is not None
|
|
)
|
|
|
|
db.session.add(message)
|
|
db.session.commit()
|
|
|
|
for file in application_generate_entity.files:
|
|
message_file = MessageFile(
|
|
message_id=message.id,
|
|
type=file.type.value,
|
|
transfer_method=file.transfer_method.value,
|
|
url=file.url,
|
|
upload_file_id=file.upload_file_id,
|
|
created_by_role=('account' if account_id else 'end_user'),
|
|
created_by=account_id or end_user_id,
|
|
)
|
|
db.session.add(message_file)
|
|
db.session.commit()
|
|
|
|
return conversation, message
|
|
|
|
def _get_conversation_introduction(self, application_generate_entity: ApplicationGenerateEntity) -> str:
|
|
"""
|
|
Get conversation introduction
|
|
:param application_generate_entity: application generate entity
|
|
:return: conversation introduction
|
|
"""
|
|
app_orchestration_config_entity = application_generate_entity.app_orchestration_config_entity
|
|
introduction = app_orchestration_config_entity.opening_statement
|
|
|
|
if introduction:
|
|
try:
|
|
inputs = application_generate_entity.inputs
|
|
prompt_template = PromptTemplateParser(template=introduction)
|
|
prompt_inputs = {k: inputs[k] for k in prompt_template.variable_keys if k in inputs}
|
|
introduction = prompt_template.format(prompt_inputs)
|
|
except KeyError:
|
|
pass
|
|
|
|
return introduction
|
|
|
|
def _get_conversation(self, conversation_id: str) -> Conversation:
|
|
"""
|
|
Get conversation by conversation id
|
|
:param conversation_id: conversation id
|
|
:return: conversation
|
|
"""
|
|
conversation = (
|
|
db.session.query(Conversation)
|
|
.filter(Conversation.id == conversation_id)
|
|
.first()
|
|
)
|
|
|
|
return conversation
|
|
|
|
def _get_message(self, message_id: str) -> Message:
|
|
"""
|
|
Get message by message id
|
|
:param message_id: message id
|
|
:return: message
|
|
"""
|
|
message = (
|
|
db.session.query(Message)
|
|
.filter(Message.id == message_id)
|
|
.first()
|
|
)
|
|
|
|
return message
|