3b7c00377f
Apply Black formatter to the entire codebase for consistent code style. Co-Authored-By: Claude (glm-5) <noreply@anthropic.com>
90 lines
2.9 KiB
Python
90 lines
2.9 KiB
Python
"""
|
||
数据库连接工厂
|
||
|
||
根据配置创建对应数据库类型的连接实例
|
||
"""
|
||
|
||
from typing import Dict, Any, Optional
|
||
from config.schema import DatabaseType
|
||
from db.base_connection import BaseDatabaseConnection
|
||
from db.sqlserver_connection import SQLServerConnection
|
||
from db.mysql_connection import MySQLConnection
|
||
|
||
|
||
class ConnectionFactory:
|
||
"""数据库连接工厂类"""
|
||
|
||
@staticmethod
|
||
def create_connection(
|
||
db_type: DatabaseType, config: Optional[Dict[str, Any]] = None
|
||
) -> BaseDatabaseConnection:
|
||
"""
|
||
根据数据库类型创建对应的连接实例
|
||
|
||
Args:
|
||
db_type: 数据库类型（SQLSERVER 或 MYSQL）
|
||
config: 数据库配置字典
|
||
|
||
Returns:
|
||
对应数据库的连接实例
|
||
|
||
Raises:
|
||
ValueError: 不支持的数据库类型
|
||
"""
|
||
if db_type == DatabaseType.SQLSERVER:
|
||
return SQLServerConnection(config)
|
||
elif db_type == DatabaseType.MYSQL:
|
||
return MySQLConnection(config)
|
||
else:
|
||
raise ValueError(f"不支持的数据库类型: {db_type}")
|
||
|
||
@staticmethod
|
||
def create_from_config(database_config) -> BaseDatabaseConnection:
|
||
"""
|
||
从 DatabaseConfig 配置对象创建连接
|
||
|
||
Args:
|
||
database_config: DatabaseConfig 配置对象
|
||
|
||
Returns:
|
||
对应数据库的连接实例
|
||
|
||
Raises:
|
||
ValueError: 不支持的数据库类型
|
||
"""
|
||
db_type = database_config.db_type
|
||
|
||
if db_type == DatabaseType.SQLSERVER:
|
||
# 构建 SQL Server 配置字典
|
||
config = {
|
||
"server": database_config.server,
|
||
"database": database_config.database,
|
||
"username": database_config.username,
|
||
"password": database_config.password,
|
||
}
|
||
if database_config.sqlserver:
|
||
config["driver"] = database_config.sqlserver.driver
|
||
config["trust_server_certificate"] = (
|
||
database_config.sqlserver.trust_server_certificate
|
||
)
|
||
return SQLServerConnection(config)
|
||
|
||
elif db_type == DatabaseType.MYSQL:
|
||
# 构建 MySQL 配置字典
|
||
config = {
|
||
"database": database_config.database,
|
||
"username": database_config.username,
|
||
"password": database_config.password,
|
||
}
|
||
if database_config.mysql:
|
||
config["host"] = database_config.mysql.host
|
||
config["port"] = database_config.mysql.port
|
||
config["charset"] = database_config.mysql.charset
|
||
else:
|
||
# 回退到 server 字段（兼容旧配置）
|
||
config["host"] = database_config.server
|
||
return MySQLConnection(config)
|
||
|
||
else:
|
||
raise ValueError(f"不支持的数据库类型: {db_type}")
|