Initial commit

ktransformers/server/config/singleton.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python
+# coding=utf-8
+'''
+Description  : Implement singleton
+Author       : unicornchan
+Date         : 2024-06-11 17:08:36
+Version      : 1.0.0
+LastEditors  : chenxl 
+LastEditTime : 2024-07-27 01:55:56
+'''
+import abc
+
+class Singleton(abc.ABCMeta, type):
+    """_summary_
+
+    Args:
+        abc.ABCMeta: Provide a mechanism for defining abstract methods and properties,
+            enforcing subclasses to implement these methods and properties.
+        type: Inherit from 'type' to make 'Singleton' a metaclass,
+            enabling the implementation of the Singleton
+    """
+    _instances = {}
+
+    def __call__(cls, *args, **kwds):
+        if cls not in cls._instances:
+            cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwds)
+        return cls._instances[cls]
+
+class AbstractSingleton(abc.ABC, metaclass=Singleton):
+    """Provided an abstract Singleton base class, any class inheriting from
+       this base class will automatically become a Singleton class.
+
+    Args:
+        abc.ABC: Abstract base class, it cannot be instantiated, only inherited. 
+    """