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src/core/Expando.py

@@ -0,0 +1,70 @@
+class Expando:
+  """
+  Readonly dynamic class that eases the access to attributes and sub attributes
+  It is initialized with a dict
+  You can then access the property using dot '.' (ex. obj.prop1.prop2)
+  """
+  
+  def __init__(self, props):
+    self._props = props
+  
+  def __getattr__(self, item):
+    if item not in self._props:
+      raise AttributeError(item)
+    
+    current = self._props[item]
+    return Expando(current) if isinstance(current, dict) else current
+  
+  def __setitem__(self, key, value):
+    self._props[key] = value
+  
+  def get(self, path):
+    """
+    returns the value, from a string with represents the path
+    :param path:
+    :return:
+    """
+    current = self._props
+    for attr in path.split("."):
+      if isinstance(current, list):
+        temp = []
+        for value in current:
+          if value and attr in value:
+            temp.append(value[attr])
+        current = temp
+      
+      else:
+        if current is None or attr not in current:
+          return None
+        current = current[attr]
+    
+    return current
+  
+  def as_dict(self):
+    """
+    Return the information as a dictionary
+    :return:
+    """
+    return self._props.copy()
+  
+  def to_dict(self, mappings: dict) -> dict:
+    return {prop_name: self.get(path) for path, prop_name in mappings.items() if prop_name is not None}
+  
+  def __repr__(self):
+    if "key" in self._props:
+      return f"Expando(key={self._props["key"]})"
+    
+    props_as_str = str(self._props)
+    if len(props_as_str) > 50:
+      props_as_str = props_as_str[:50] + "..."
+    
+    return f"Expando({props_as_str})"
+  
+  def __eq__(self, other):
+    if not isinstance(other, Expando):
+      return False
+    
+    return self._props == other._props
+  
+  def __hash__(self):
+    return hash(tuple(sorted(self._props.items())))