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data_handler_strategy_data_manager_yaml_json.py(file created)
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| 1 | + | import time | |
| 2 | + | import yaml | |
| 3 | + | import json | |
| 4 | + | from abc import ABC, abstractmethod | |
| 5 | + | import streamlit as st | |
| 6 | + | ||
| 7 | + | # 策略介面 | |
| 8 | + | class DataHandlerStrategy(ABC): | |
| 9 | + | @abstractmethod | |
| 10 | + | def read_data(self, path): | |
| 11 | + | pass | |
| 12 | + | ||
| 13 | + | @abstractmethod | |
| 14 | + | def write_data(self, path, data): | |
| 15 | + | pass | |
| 16 | + | ||
| 17 | + | # YAML 策略 | |
| 18 | + | class YamlHandler(DataHandlerStrategy): | |
| 19 | + | def read_data(self, path): | |
| 20 | + | with open(path, "r") as f: | |
| 21 | + | return yaml.safe_load(f) | |
| 22 | + | ||
| 23 | + | def write_data(self, path, data): | |
| 24 | + | with open(path, "w") as f: | |
| 25 | + | yaml.safe_dump(data, f) | |
| 26 | + | ||
| 27 | + | # JSON 策略 | |
| 28 | + | class JsonHandler(DataHandlerStrategy): | |
| 29 | + | def read_data(self, path): | |
| 30 | + | with open(path, "r") as f: | |
| 31 | + | return json.load(f) | |
| 32 | + | ||
| 33 | + | def write_data(self, path, data): | |
| 34 | + | with open(path, "w") as f: | |
| 35 | + | json.dump(data, f, ensure_ascii=False, indent=4) | |
| 36 | + | ||
| 37 | + | # DataManager 類別 | |
| 38 | + | class DataManager: | |
| 39 | + | def __init__(self, data_handler: DataHandlerStrategy): | |
| 40 | + | self.data_handler = data_handler | |
| 41 | + | ||
| 42 | + | def load_data(self, path): | |
| 43 | + | """ | |
| 44 | + | 載入資料 | |
| 45 | + | """ | |
| 46 | + | return self._load_file(path) | |
| 47 | + | ||
| 48 | + | def save_data(self, path, data): | |
| 49 | + | """ | |
| 50 | + | 儲存資料 | |
| 51 | + | """ | |
| 52 | + | try: | |
| 53 | + | self.data_handler.write_data(path, data) | |
| 54 | + | st.success("資料已成功儲存") | |
| 55 | + | time.sleep(1) | |
| 56 | + | st.rerun() | |
| 57 | + | except Exception as e: | |
| 58 | + | st.error(f"儲存資料過程中發生錯誤：{e}") | |
| 59 | + | ||
| 60 | + | def _load_file(self, path): | |
| 61 | + | """ | |
| 62 | + | 通用的文件載入方法 | |
| 63 | + | """ | |
| 64 | + | try: | |
| 65 | + | return self.data_handler.read_data(path) | |
| 66 | + | except FileNotFoundError: | |
| 67 | + | st.error(f"找不到文件：{path}") | |
| 68 | + | except Exception as e: | |
| 69 | + | st.error(f"載入文件 {path} 時發生錯誤：{e}") | |
| 70 | + | return None | |
| 71 | + | ||
| 72 | + | # 使用 YAML 策略 | |
| 73 | + | yaml_handler = YamlHandler() | |
| 74 | + | data_manager_yaml = DataManager(yaml_handler) | |
| 75 | + | data_yaml = data_manager_yaml.load_data("path/to/your/yamlfile.yaml") | |
| 76 | + | data_manager_yaml.save_data("path/to/your/yamlfile.yaml", data_yaml) | |
| 77 | + | ||
| 78 | + | # 使用 JSON 策略 | |
| 79 | + | json_handler = JsonHandler() | |
| 80 | + | data_manager_json = DataManager(json_handler) | |
| 81 | + | data_json = data_manager_json.load_data("path/to/your/jsonfile.json") | |
| 82 | + | data_manager_json.save_data("path/to/your/jsonfile.json", data_json) | |
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