initial commit of rest api module with partially working rest api handling

pype/services/rest_api/base_class.py

@@ -0,0 +1,68 @@
+from functools import wraps
+from http import HTTPStatus
+
+from .lib import (
+    RestApiFactory, Splitter,
+    ObjAlreadyExist, AbortException,
+    Params, UrlData, RequestData, Query, Fragment, Handler
+)
+
+
+def route(path, url_prefix="", methods=[]):
+    def decorator(callback):
+        @wraps(callback)
+        def wrapper(*args, **kwargs):
+            return callback(*args, **kwargs)
+
+        func = wrapper
+        func.restapi = True
+        func.path = path
+        func.methods = methods
+        func.url_prefix = url_prefix
+        if hasattr(callback, "__self__"):
+            func.__self__ = callback.__self__
+        func.callback = callback
+
+        RestApiFactory.register_route(func)
+        return func
+    return decorator
+
+
+def register_statics(url_prefix, dir_path):
+    RestApiFactory.register_statics((url_prefix, dir_path))
+
+
+def abort(status_code=HTTPStatus.NOT_FOUND, message=None):
+    items = []
+    items.append(str(status_code))
+    if not message:
+        message = ""
+
+    items.append(message)
+
+    raise AbortException(Splitter.join(items))
+
+
+class RestApi:
+    def route(path, url_prefix="", methods=[]):
+        return route(path, url_prefix, methods)
+
+    @classmethod
+    def register_route(cls, callback, path, url_prefix="", methods=[]):
+        return route(path, methods, url_prefix)(callback)
+
+    @classmethod
+    def register_statics(cls, url_prefix, dir_path):
+        return register_statics(url_prefix, dir_path)
+
+    @classmethod
+    def abort(cls, status_code=HTTPStatus.NOT_FOUND, message=None):
+        abort(status_code, message)
+
+    def __new__(cls, *args, **kwargs):
+        for obj in RestApiFactory.registered_objs:
+            if type(obj) == cls:
+                raise ObjAlreadyExist(cls)
+        instance = super(RestApi, cls).__new__(cls)
+        RestApiFactory.register_obj(instance)
+        return instance