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import json
import logging
from collections.abc import Generator
from typing import Optional, Union
from sqlalchemy import and_
from core.app.app_config.entities import EasyUIBasedAppModelConfigFrom
from core.app.apps.base_app_generator import BaseAppGenerator
from core.app.apps.base_app_queue_manager import AppQueueManager, GenerateTaskStoppedException
from core.app.entities.app_invoke_entities import (
AdvancedChatAppGenerateEntity,
AgentChatAppGenerateEntity,
AppGenerateEntity,
ChatAppGenerateEntity,
CompletionAppGenerateEntity,
InvokeFrom,
)
from core.app.entities.task_entities import (
ChatbotAppBlockingResponse,
ChatbotAppStreamResponse,
CompletionAppBlockingResponse,
CompletionAppStreamResponse,
)
from core.app.task_pipeline.easy_ui_based_generate_task_pipeline import EasyUIBasedGenerateTaskPipeline
from core.prompt.utils.prompt_template_parser import PromptTemplateParser
from extensions.ext_database import db
from models.account import Account
from models.model import App, AppMode, AppModelConfig, Conversation, EndUser, Message, MessageFile
from services.errors.app_model_config import AppModelConfigBrokenError
from services.errors.conversation import ConversationCompletedError, ConversationNotExistsError
logger = logging.getLogger(__name__)
class MessageBasedAppGenerator(BaseAppGenerator):
def _handle_response(self, application_generate_entity: Union[
ChatAppGenerateEntity,
CompletionAppGenerateEntity,
AgentChatAppGenerateEntity,
AdvancedChatAppGenerateEntity
],
queue_manager: AppQueueManager,
conversation: Conversation,
message: Message,
user: Union[Account, EndUser],
stream: bool = False) \
-> Union[
ChatbotAppBlockingResponse,
CompletionAppBlockingResponse,
Generator[Union[ChatbotAppStreamResponse, CompletionAppStreamResponse], None, None]
]:
"""
Handle response.
:param application_generate_entity: application generate entity
:param queue_manager: queue manager
:param conversation: conversation
:param message: message
:param user: user
:param stream: is stream
:return:
"""
# init generate task pipeline
generate_task_pipeline = EasyUIBasedGenerateTaskPipeline(
application_generate_entity=application_generate_entity,
queue_manager=queue_manager,
conversation=conversation,
message=message,
user=user,
stream=stream
)
try:
return generate_task_pipeline.process()
except ValueError as e:
if e.args[0] == "I/O operation on closed file.": # ignore this error
raise GenerateTaskStoppedException()
else:
logger.exception(e)
raise e
def _get_conversation_by_user(self, app_model: App, conversation_id: str,
user: Union[Account, EndUser]) -> Conversation:
conversation_filter = [
Conversation.id == conversation_id,
Conversation.app_id == app_model.id,
Conversation.status == 'normal'
]
if isinstance(user, Account):
conversation_filter.append(Conversation.from_account_id == user.id)
else:
conversation_filter.append(Conversation.from_end_user_id == user.id if user else None)
conversation = db.session.query(Conversation).filter(and_(*conversation_filter)).first()
if not conversation:
raise ConversationNotExistsError()
if conversation.status != 'normal':
raise ConversationCompletedError()
return conversation
def _get_app_model_config(self, app_model: App,
conversation: Optional[Conversation] = None) \
-> AppModelConfig:
if conversation:
app_model_config = db.session.query(AppModelConfig).filter(
AppModelConfig.id == conversation.app_model_config_id,
AppModelConfig.app_id == app_model.id
).first()
if not app_model_config:
raise AppModelConfigBrokenError()
else:
if app_model.app_model_config_id is None:
raise AppModelConfigBrokenError()
app_model_config = app_model.app_model_config
if not app_model_config:
raise AppModelConfigBrokenError()
return app_model_config
def _init_generate_records(self,
application_generate_entity: Union[
ChatAppGenerateEntity,
CompletionAppGenerateEntity,
AgentChatAppGenerateEntity,
AdvancedChatAppGenerateEntity
],
conversation: Optional[Conversation] = None) \
-> tuple[Conversation, Message]:
"""
Initialize generate records
:param application_generate_entity: application generate entity
:return:
"""
app_config = application_generate_entity.app_config
# 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
if isinstance(application_generate_entity, AdvancedChatAppGenerateEntity):
app_model_config_id = None
override_model_configs = None
model_provider = None
model_id = None
else:
app_model_config_id = app_config.app_model_config_id
model_provider = application_generate_entity.model_config.provider
model_id = application_generate_entity.model_config.model
override_model_configs = None
if app_config.app_model_config_from == EasyUIBasedAppModelConfigFrom.ARGS \
and app_config.app_mode in [AppMode.AGENT_CHAT, AppMode.CHAT, AppMode.COMPLETION]:
override_model_configs = app_config.app_model_config_dict
# get conversation introduction
introduction = self._get_conversation_introduction(application_generate_entity)
if not conversation:
conversation = Conversation(
app_id=app_config.app_id,
app_model_config_id=app_model_config_id,
model_provider=model_provider,
model_id=model_id,
override_model_configs=json.dumps(override_model_configs) if override_model_configs else None,
mode=app_config.app_mode.value,
name='New conversation',
inputs=application_generate_entity.inputs,
introduction=introduction,
system_instruction="",
system_instruction_tokens=0,
status='normal',
invoke_from=application_generate_entity.invoke_from.value,
from_source=from_source,
from_end_user_id=end_user_id,
from_account_id=account_id,
)
db.session.add(conversation)
db.session.commit()
db.session.refresh(conversation)
message = Message(
app_id=app_config.app_id,
model_provider=model_provider,
model_id=model_id,
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='USD',
invoke_from=application_generate_entity.invoke_from.value,
from_source=from_source,
from_end_user_id=end_user_id,
from_account_id=account_id
)
db.session.add(message)
db.session.commit()
db.session.refresh(message)
for file in application_generate_entity.files:
message_file = MessageFile(
message_id=message.id,
type=file.type.value,
transfer_method=file.transfer_method.value,
belongs_to='user',
url=file.url,
upload_file_id=file.related_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: AppGenerateEntity) -> str:
"""
Get conversation introduction
:param application_generate_entity: application generate entity
:return: conversation introduction
"""
app_config = application_generate_entity.app_config
introduction = app_config.additional_features.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
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