added files missed by last commit

recipes/JupyterNotebookRecipe.py

@@ -1,5 +1,46 @@
 
+import nbformat
+
+from typing import Any
+
+from core.correctness.validation import check_input, valid_string, valid_dict
+from core.correctness.vars import VALID_JUPYTER_NOTEBOOK_FILENAME_CHARS, \
+    VALID_JUPYTER_NOTEBOOK_EXTENSIONS, VALID_VARIABLE_NAME_CHARS
 from core.meow import BaseRecipe
 
 class JupyterNotebookRecipe(BaseRecipe):
-    pass
+    source:str
+    def __init__(self, name:str, recipe:Any, parameters:dict[str,Any]={}, 
+            requirements:dict[str,Any]={}, source:str=""):
+        super().__init__(name, recipe, parameters, requirements)
+        self._is_valid_source(source)
+        self.source = source
+
+    def _is_valid_source(self, source:str)->None:
+        valid_string(
+            source, VALID_JUPYTER_NOTEBOOK_FILENAME_CHARS, min_length=0)
+
+        if not source:
+            return
+
+        matched = False
+        for i in VALID_JUPYTER_NOTEBOOK_EXTENSIONS:
+            if source.endswith(i):
+                matched = True
+        if not matched:
+            raise ValueError(f"source '{source}' does not end with a valid "
+                "jupyter notebook extension.")
+
+    def _is_valid_recipe(self, recipe:dict[str,Any])->None:
+        check_input(recipe, dict)
+        nbformat.validate(recipe)
+
+    def _is_valid_parameters(self, parameters:dict[str,Any])->None:
+        valid_dict(parameters, str, Any, strict=False)
+        for k in parameters.keys():
+            valid_string(k, VALID_VARIABLE_NAME_CHARS)
+
+    def _is_valid_requirements(self, requirements:dict[str,Any])->None:
+        valid_dict(requirements, str, Any, strict=False)
+        for k in requirements.keys():
+            valid_string(k, VALID_VARIABLE_NAME_CHARS)