from .json_parser import JsonParser
from .xml_parser import XmlParser

class ParserFactory:
    def get_parser(self, protocol_type: str):
        if protocol_type == "json":
            return JsonParser()
        elif protocol_type == "xml":
            return XmlParser()
        elif protocol_type == "custom":
            from .custom_parser import CustomParser
            return CustomParser()
        raise ValueError(f"不支持的协议类型: {protocol_type}")