data_handler_strategy_data_manager_yaml_json.py
· 2.2 KiB · Python
Surowy
import time
import yaml
import json
from abc import ABC, abstractmethod
import streamlit as st
# 策略介面
class DataHandlerStrategy(ABC):
@abstractmethod
def read_data(self, path):
pass
@abstractmethod
def write_data(self, path, data):
pass
# YAML 策略
class YamlHandler(DataHandlerStrategy):
def read_data(self, path):
with open(path, "r") as f:
return yaml.safe_load(f)
def write_data(self, path, data):
with open(path, "w") as f:
yaml.safe_dump(data, f)
# JSON 策略
class JsonHandler(DataHandlerStrategy):
def read_data(self, path):
with open(path, "r") as f:
return json.load(f)
def write_data(self, path, data):
with open(path, "w") as f:
json.dump(data, f, ensure_ascii=False, indent=4)
# DataManager 類別
class DataManager:
def __init__(self, data_handler: DataHandlerStrategy):
self.data_handler = data_handler
def load_data(self, path):
"""
載入資料
"""
return self._load_file(path)
def save_data(self, path, data):
"""
儲存資料
"""
try:
self.data_handler.write_data(path, data)
st.success("資料已成功儲存")
time.sleep(1)
st.rerun()
except Exception as e:
st.error(f"儲存資料過程中發生錯誤：{e}")
def _load_file(self, path):
"""
通用的文件載入方法
"""
try:
return self.data_handler.read_data(path)
except FileNotFoundError:
st.error(f"找不到文件：{path}")
except Exception as e:
st.error(f"載入文件 {path} 時發生錯誤：{e}")
return None
# 使用 YAML 策略
yaml_handler = YamlHandler()
data_manager_yaml = DataManager(yaml_handler)
data_yaml = data_manager_yaml.load_data("path/to/your/yamlfile.yaml")
data_manager_yaml.save_data("path/to/your/yamlfile.yaml", data_yaml)
# 使用 JSON 策略
json_handler = JsonHandler()
data_manager_json = DataManager(json_handler)
data_json = data_manager_json.load_data("path/to/your/jsonfile.json")
data_manager_json.save_data("path/to/your/jsonfile.json", data_json)
| 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) |
| 83 |