a3cf773e75
- Add null check for actual_config_id before calling term_memory_save in langchain_agent.py to prevent errors when memory config is unavailable - Add warning log when skipping term_memory_save due to missing memory config - Fix incorrect attribute reference from memory_config.id to memory_config.config_id in memory_agent_service.py - Fix method call from private _get_workspace_default_config to public get_workspace_default_config in memory_config_service.py - Ensures graceful handling of missing memory configurations and prevents runtime errors
647 lines
24 KiB
Python
647 lines
24 KiB
Python
"""
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Memory Configuration Service
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Centralized configuration loading and management for memory services.
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This service eliminates code duplication between MemoryAgentService and MemoryStorageService.
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"""
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import time
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import uuid
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from datetime import datetime
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from typing import TYPE_CHECKING, Optional
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from uuid import UUID
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from sqlalchemy import select
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from sqlalchemy.orm import Session
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from app.core.logging_config import get_config_logger, get_logger
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from app.core.validators.memory_config_validators import (
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validate_and_resolve_model_id,
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validate_embedding_model,
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)
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from app.models.memory_config_model import MemoryConfig as MemoryConfigModel
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from app.repositories.memory_config_repository import MemoryConfigRepository
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from app.schemas.memory_config_schema import (
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ConfigurationError,
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InvalidConfigError,
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MemoryConfig,
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)
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if TYPE_CHECKING:
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from app.models.memory_config_model import MemoryConfig as MemoryConfigModel
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logger = get_logger(__name__)
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config_logger = get_config_logger()
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def _validate_config_id(config_id, db: Session = None):
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"""Validate configuration ID format (supports both UUID and integer)."""
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if isinstance(config_id, uuid.UUID):
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return config_id
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if config_id is None:
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raise InvalidConfigError(
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"Configuration ID cannot be None",
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field_name="config_id",
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invalid_value=config_id,
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)
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if isinstance(config_id, int):
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if config_id <= 0:
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raise InvalidConfigError(
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f"Configuration ID must be positive: {config_id}",
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field_name="config_id",
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invalid_value=config_id,
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)
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# 如果提供了数据库会话，尝试通过 user_id 查询 config_id
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if db is not None:
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# 查询 user_id 匹配的记录
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stmt = select(MemoryConfigModel).where(MemoryConfigModel.config_id_old == str(config_id))
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result = db.execute(stmt).scalars().first()
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if result:
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logger.info(f"Found config_id {result.config_id} for user_id {config_id}")
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return result.config_id
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return config_id
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if isinstance(config_id, str):
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config_id_stripped = config_id.strip()
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# Try parsing as UUID first
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try:
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return uuid.UUID(config_id_stripped)
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except ValueError:
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pass
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# Fall back to integer parsing
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try:
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parsed_id = int(config_id_stripped)
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if parsed_id <= 0:
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raise InvalidConfigError(
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f"Configuration ID must be positive: {parsed_id}",
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field_name="config_id",
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invalid_value=config_id,
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)
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# 如果提供了数据库会话，尝试通过 user_id 查询 config_id
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if db is not None:
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# 查询 user_id 匹配的记录
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stmt = select(MemoryConfigModel).where(MemoryConfigModel.user_id == str(parsed_id))
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result = db.execute(stmt).scalars().first()
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if result:
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logger.info(f"Found config_id {result.config_id} for user_id {parsed_id}")
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return result.config_id
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return parsed_id
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except ValueError:
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raise InvalidConfigError(
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f"Invalid configuration ID format: '{config_id}' (must be UUID or positive integer)",
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field_name="config_id",
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invalid_value=config_id,
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)
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raise InvalidConfigError(
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f"Invalid type for configuration ID: expected UUID, int or str, got {type(config_id).__name__}",
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field_name="config_id",
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invalid_value=config_id,
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)
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class MemoryConfigService:
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"""
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Centralized service for memory configuration loading and validation.
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This class provides a single implementation of configuration loading logic
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that can be shared across multiple services, eliminating code duplication.
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Usage:
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config_service = MemoryConfigService(db)
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memory_config = config_service.load_memory_config(config_id)
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model_config = config_service.get_model_config(model_id)
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"""
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def __init__(self, db: Session):
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"""Initialize the service with a database session.
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Args:
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db: SQLAlchemy database session
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"""
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self.db = db
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def load_memory_config(
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self,
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config_id: UUID,
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service_name: str = "MemoryConfigService",
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) -> MemoryConfig:
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"""
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Load memory configuration from database by config_id.
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Args:
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config_id: Configuration ID (UUID) from database
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service_name: Name of the calling service (for logging purposes)
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Returns:
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MemoryConfig: Immutable configuration object
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Raises:
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ConfigurationError: If validation fails
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"""
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start_time = time.time()
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config_logger.info(
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"Starting memory configuration loading",
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extra={
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"operation": "load_memory_config",
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"service": service_name,
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"config_id": str(config_id),
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},
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)
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logger.info(f"Loading memory configuration from database: config_id={config_id}")
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try:
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validated_config_id = _validate_config_id(config_id, self.db)
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# Step 1: Get config and workspace
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db_query_start = time.time()
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result = MemoryConfigRepository.get_config_with_workspace(self.db, validated_config_id)
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db_query_time = time.time() - db_query_start
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logger.info(f"[PERF] Config+Workspace query: {db_query_time:.4f}s")
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if not result:
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elapsed_ms = (time.time() - start_time) * 1000
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config_logger.error(
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"Configuration not found in database",
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extra={
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"operation": "load_memory_config",
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"config_id": str(config_id),
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"load_result": "not_found",
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"elapsed_ms": elapsed_ms,
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"service": service_name,
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},
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)
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raise ConfigurationError(
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f"Configuration {config_id} not found in database"
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)
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memory_config, workspace = result
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# Step 2: Validate embedding model (returns both UUID and name)
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embed_start = time.time()
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embedding_uuid, embedding_name = validate_embedding_model(
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validated_config_id,
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memory_config.embedding_id,
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self.db,
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workspace.tenant_id,
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workspace.id,
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)
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embed_time = time.time() - embed_start
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logger.info(f"[PERF] Embedding validation: {embed_time:.4f}s")
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# Step 3: Resolve LLM model
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llm_start = time.time()
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llm_uuid, llm_name = validate_and_resolve_model_id(
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memory_config.llm_id,
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"llm",
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self.db,
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workspace.tenant_id,
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required=True,
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config_id=validated_config_id,
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workspace_id=workspace.id,
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)
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llm_time = time.time() - llm_start
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logger.info(f"[PERF] LLM validation: {llm_time:.4f}s")
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# Step 4: Resolve optional rerank model
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rerank_start = time.time()
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rerank_uuid = None
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rerank_name = None
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if memory_config.rerank_id:
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rerank_uuid, rerank_name = validate_and_resolve_model_id(
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memory_config.rerank_id,
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"rerank",
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self.db,
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workspace.tenant_id,
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required=False,
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config_id=validated_config_id,
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workspace_id=workspace.id,
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)
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rerank_time = time.time() - rerank_start
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if memory_config.rerank_id:
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logger.info(f"[PERF] Rerank validation: {rerank_time:.4f}s")
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# Note: embedding_name is now returned from validate_embedding_model above
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# No need for redundant query!
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# Create immutable MemoryConfig object
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config = MemoryConfig(
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config_id=memory_config.config_id,
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config_name=memory_config.config_name,
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workspace_id=workspace.id,
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workspace_name=workspace.name,
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tenant_id=workspace.tenant_id,
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llm_model_id=llm_uuid,
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llm_model_name=llm_name,
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embedding_model_id=embedding_uuid,
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embedding_model_name=embedding_name,
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rerank_model_id=rerank_uuid,
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rerank_model_name=rerank_name,
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storage_type=workspace.storage_type or "neo4j",
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chunker_strategy=memory_config.chunker_strategy or "RecursiveChunker",
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reflexion_enabled=memory_config.enable_self_reflexion or False,
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reflexion_iteration_period=int(memory_config.iteration_period or "3"),
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reflexion_range=memory_config.reflexion_range or "partial",
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reflexion_baseline=memory_config.baseline or "Time",
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loaded_at=datetime.now(),
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# Pipeline config: Deduplication
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enable_llm_dedup_blockwise=bool(memory_config.enable_llm_dedup_blockwise) if memory_config.enable_llm_dedup_blockwise is not None else False,
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enable_llm_disambiguation=bool(memory_config.enable_llm_disambiguation) if memory_config.enable_llm_disambiguation is not None else False,
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deep_retrieval=bool(memory_config.deep_retrieval) if memory_config.deep_retrieval is not None else True,
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t_type_strict=float(memory_config.t_type_strict) if memory_config.t_type_strict is not None else 0.8,
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t_name_strict=float(memory_config.t_name_strict) if memory_config.t_name_strict is not None else 0.8,
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t_overall=float(memory_config.t_overall) if memory_config.t_overall is not None else 0.8,
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# Pipeline config: Statement extraction
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statement_granularity=int(memory_config.statement_granularity) if memory_config.statement_granularity is not None else 2,
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include_dialogue_context=bool(memory_config.include_dialogue_context) if memory_config.include_dialogue_context is not None else False,
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max_dialogue_context_chars=int(memory_config.max_context) if memory_config.max_context is not None else 1000,
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# Pipeline config: Forgetting engine
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lambda_time=float(memory_config.lambda_time) if memory_config.lambda_time is not None else 0.5,
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lambda_mem=float(memory_config.lambda_mem) if memory_config.lambda_mem is not None else 0.5,
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offset=float(memory_config.offset) if memory_config.offset is not None else 0.0,
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# Pipeline config: Pruning
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pruning_enabled=bool(memory_config.pruning_enabled) if memory_config.pruning_enabled is not None else False,
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pruning_scene=memory_config.pruning_scene or "education",
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pruning_threshold=float(memory_config.pruning_threshold) if memory_config.pruning_threshold is not None else 0.5,
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)
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elapsed_ms = (time.time() - start_time) * 1000
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config_logger.info(
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"Memory configuration loaded successfully",
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extra={
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"operation": "load_memory_config",
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"service": service_name,
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"config_id": validated_config_id,
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"config_name": config.config_name,
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"workspace_id": str(config.workspace_id),
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"load_result": "success",
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"elapsed_ms": elapsed_ms,
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},
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)
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logger.info(f"Memory configuration loaded successfully: {config.config_name}")
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return config
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except Exception as e:
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elapsed_ms = (time.time() - start_time) * 1000
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config_logger.error(
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"Failed to load memory configuration",
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extra={
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"operation": "load_memory_config",
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"service": service_name,
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"config_id": config_id,
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"load_result": "error",
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"error_type": type(e).__name__,
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"error_message": str(e),
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"elapsed_ms": elapsed_ms,
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},
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exc_info=True,
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)
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logger.error(f"Failed to load memory configuration {config_id}: {e}")
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if isinstance(e, (ConfigurationError, ValueError)):
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raise
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else:
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raise ConfigurationError(f"Failed to load configuration {config_id}: {e}")
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def get_model_config(self, model_id: str) -> dict:
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"""Get LLM model configuration by ID.
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Args:
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model_id: Model ID to look up
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Returns:
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Dict with model configuration including api_key, base_url, etc.
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"""
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from fastapi import status
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from fastapi.exceptions import HTTPException
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from app.core.config import settings
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from app.models.models_model import ModelApiKey
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from app.services.model_service import ModelConfigService as ModelSvc
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config = ModelSvc.get_model_by_id(db=self.db, model_id=model_id)
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if not config:
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logger.warning(f"Model ID {model_id} not found")
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="模型ID不存在")
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api_config: ModelApiKey = config.api_keys[0]
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return {
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"model_name": api_config.model_name,
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"provider": api_config.provider,
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"api_key": api_config.api_key,
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"base_url": api_config.api_base,
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"model_config_id": str(config.id),
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"type": config.type,
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"timeout": settings.LLM_TIMEOUT,
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"max_retries": settings.LLM_MAX_RETRIES,
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}
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def get_embedder_config(self, embedding_id: str) -> dict:
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"""Get embedding model configuration by ID.
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Args:
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embedding_id: Embedding model ID to look up
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Returns:
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Dict with embedder configuration including api_key, base_url, etc.
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"""
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from fastapi import status
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from fastapi.exceptions import HTTPException
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from app.models.models_model import ModelApiKey
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from app.services.model_service import ModelConfigService as ModelSvc
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config = ModelSvc.get_model_by_id(db=self.db, model_id=embedding_id)
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if not config:
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logger.warning(f"Embedding model ID {embedding_id} not found")
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="嵌入模型ID不存在")
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api_config: ModelApiKey = config.api_keys[0]
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return {
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"model_name": api_config.model_name,
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"provider": api_config.provider,
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"api_key": api_config.api_key,
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"base_url": api_config.api_base,
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"model_config_id": str(config.id),
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"type": config.type,
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"timeout": 120.0,
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"max_retries": 5,
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}
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@staticmethod
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def get_pipeline_config(memory_config: MemoryConfig):
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"""Build ExtractionPipelineConfig from MemoryConfig.
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Args:
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memory_config: MemoryConfig object containing all pipeline settings.
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Returns:
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ExtractionPipelineConfig with deduplication, statement extraction,
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and forgetting engine settings.
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"""
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from app.core.memory.models.variate_config import (
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DedupConfig,
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ExtractionPipelineConfig,
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ForgettingEngineConfig,
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StatementExtractionConfig,
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)
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dedup_config = DedupConfig(
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enable_llm_dedup_blockwise=memory_config.enable_llm_dedup_blockwise,
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enable_llm_disambiguation=memory_config.enable_llm_disambiguation,
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fuzzy_name_threshold_strict=memory_config.t_name_strict,
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fuzzy_type_threshold_strict=memory_config.t_type_strict,
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fuzzy_overall_threshold=memory_config.t_overall,
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)
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stmt_config = StatementExtractionConfig(
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statement_granularity=memory_config.statement_granularity,
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include_dialogue_context=memory_config.include_dialogue_context,
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max_dialogue_context_chars=memory_config.max_dialogue_context_chars,
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)
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forget_config = ForgettingEngineConfig(
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offset=memory_config.offset,
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lambda_time=memory_config.lambda_time,
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lambda_mem=memory_config.lambda_mem,
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)
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return ExtractionPipelineConfig(
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statement_extraction=stmt_config,
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deduplication=dedup_config,
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forgetting_engine=forget_config,
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)
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@staticmethod
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def get_pruning_config(memory_config: MemoryConfig) -> dict:
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"""Retrieve semantic pruning config from MemoryConfig.
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Args:
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memory_config: MemoryConfig object containing pruning settings.
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Returns:
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Dict suitable for PruningConfig.model_validate with keys:
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- pruning_switch: bool
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- pruning_scene: str
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- pruning_threshold: float
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"""
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return {
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"pruning_switch": memory_config.pruning_enabled,
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"pruning_scene": memory_config.pruning_scene,
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"pruning_threshold": memory_config.pruning_threshold,
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}
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|
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def get_workspace_default_config(
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self,
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workspace_id: UUID
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) -> Optional["MemoryConfigModel"]:
|
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"""Get workspace default memory config.
|
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|
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Returns the config marked as default for the workspace. If no explicit
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default exists, falls back to the first active config ordered by creation time.
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|
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Args:
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workspace_id: Workspace ID
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|
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Returns:
|
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Optional[MemoryConfigModel]: Default config or None if no configs exist
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"""
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from sqlalchemy import select
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|
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from app.models.memory_config_model import MemoryConfig as MemoryConfigModel
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# First, try to find the explicitly marked default config
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stmt = (
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select(MemoryConfigModel)
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.where(
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MemoryConfigModel.workspace_id == workspace_id,
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MemoryConfigModel.is_default.is_(True),
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MemoryConfigModel.state.is_(True),
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)
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.limit(1)
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)
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config = self.db.scalars(stmt).first()
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|
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if config:
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return config
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|
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# Fallback: get the oldest active config if no explicit default
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stmt = (
|
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select(MemoryConfigModel)
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.where(
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MemoryConfigModel.workspace_id == workspace_id,
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MemoryConfigModel.state.is_(True),
|
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)
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.order_by(MemoryConfigModel.created_at.asc())
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.limit(1)
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||
)
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|
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config = self.db.scalars(stmt).first()
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|
||
if not config:
|
||
logger.warning(
|
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"No active memory config found for workspace fallback",
|
||
extra={"workspace_id": str(workspace_id)}
|
||
)
|
||
|
||
return config
|
||
|
||
def get_config_with_fallback(
|
||
self,
|
||
memory_config_id: Optional[UUID],
|
||
workspace_id: UUID
|
||
) -> Optional["MemoryConfigModel"]:
|
||
"""Get memory config with fallback to workspace default.
|
||
|
||
Implements graceful degradation: if the provided config_id is None or
|
||
the config doesn't exist, falls back to the workspace's default config.
|
||
|
||
Args:
|
||
memory_config_id: Memory config ID (can be None)
|
||
workspace_id: Workspace ID for fallback lookup
|
||
|
||
Returns:
|
||
Optional[MemoryConfigModel]: Memory config or None if no fallback available
|
||
"""
|
||
from app.models.memory_config_model import MemoryConfig as MemoryConfigModel
|
||
|
||
if not memory_config_id:
|
||
logger.debug(
|
||
"No memory config ID provided, using workspace default",
|
||
extra={"workspace_id": str(workspace_id)}
|
||
)
|
||
return self.get_workspace_default_config(workspace_id)
|
||
|
||
config = self.db.get(MemoryConfigModel, memory_config_id)
|
||
|
||
if config:
|
||
return config
|
||
|
||
logger.warning(
|
||
"Memory config not found, falling back to workspace default",
|
||
extra={
|
||
"missing_config_id": str(memory_config_id),
|
||
"workspace_id": str(workspace_id)
|
||
}
|
||
)
|
||
|
||
return self.get_workspace_default_config(workspace_id)
|
||
|
||
def delete_config(
|
||
self,
|
||
config_id: UUID | int,
|
||
force: bool = False
|
||
) -> dict:
|
||
"""Delete memory config with protection against in-use configs.
|
||
|
||
Implements delete protection: prevents accidental deletion of configs
|
||
that are actively being used by end users or marked as default.
|
||
|
||
Args:
|
||
config_id: Memory config ID to delete (UUID or legacy int)
|
||
force: If True, delete even if end users are connected
|
||
|
||
Returns:
|
||
Dict with status, message, and affected_users count
|
||
|
||
Raises:
|
||
ResourceNotFoundException: If config doesn't exist
|
||
"""
|
||
from app.core.exceptions import ResourceNotFoundException
|
||
from app.models.memory_config_model import MemoryConfig as MemoryConfigModel
|
||
|
||
# 处理旧格式 int 类型的 config_id
|
||
if isinstance(config_id, int):
|
||
logger.warning(
|
||
"Attempted to delete legacy int config_id",
|
||
extra={"config_id": config_id}
|
||
)
|
||
return {
|
||
"status": "error",
|
||
"message": "旧格式配置ID不支持删除操作，请使用新版配置",
|
||
"legacy_int_id": config_id
|
||
}
|
||
|
||
config = self.db.get(MemoryConfigModel, config_id)
|
||
if not config:
|
||
raise ResourceNotFoundException("MemoryConfig", str(config_id))
|
||
|
||
# Check if this is the default config - default configs cannot be deleted
|
||
if config.is_default:
|
||
logger.warning(
|
||
"Attempted to delete default memory config",
|
||
extra={"config_id": str(config_id)}
|
||
)
|
||
return {
|
||
"status": "error",
|
||
"message": "默认配置不允许删除",
|
||
"is_default": True
|
||
}
|
||
|
||
# TODO: add back delete warning
|
||
# # Count connected end users
|
||
# end_user_repo = EndUserRepository(self.db)
|
||
# connected_count = end_user_repo.count_by_memory_config_id(config_id)
|
||
|
||
# if connected_count > 0 and not force:
|
||
# logger.warning(
|
||
# "Attempted to delete memory config with connected end users",
|
||
# extra={
|
||
# "config_id": str(config_id),
|
||
# "connected_count": connected_count
|
||
# }
|
||
# )
|
||
|
||
# return {
|
||
# "status": "warning",
|
||
# "message": f"Cannot delete memory config: {connected_count} end users are using it",
|
||
# "connected_count": connected_count,
|
||
# "force_required": True
|
||
# }
|
||
|
||
# # Force delete: clear end user references first
|
||
# if connected_count > 0 and force:
|
||
# cleared_count = end_user_repo.clear_memory_config_id(config_id)
|
||
|
||
# logger.warning(
|
||
# "Force deleting memory config",
|
||
# extra={
|
||
# "config_id": str(config_id),
|
||
# "cleared_end_users": cleared_count
|
||
# }
|
||
# )
|
||
connected_count = 0
|
||
|
||
self.db.delete(config)
|
||
self.db.commit()
|
||
|
||
logger.info(
|
||
"Memory config deleted",
|
||
extra={
|
||
"config_id": str(config_id),
|
||
"force": force,
|
||
"affected_users": connected_count
|
||
}
|
||
)
|
||
|
||
return {
|
||
"status": "success",
|
||
"message": "Memory config deleted successfully",
|
||
"affected_users": connected_count
|
||
}
|