Implemented RAMification

experiments/exp_scd.py

@@ -26,6 +26,13 @@ def main():
 
     def print_tree(root, max_depth, depth=0):
         print("  "*depth, "root=", root, "value=", state.read_value(root))
+        src,tgt = state.read_edge(root)
+        if src != None:
+            print("  "*depth, "src...")
+            print_tree(src, max_depth, depth+1)
+        if tgt != None:
+            print("  "*depth, "tgt...")
+            print_tree(tgt, max_depth, depth+1)
         for edge in state.read_outgoing(root):
             for edge_label in state.read_outgoing(edge):
                 [_,tgt] = state.read_edge(edge_label)
@@ -50,19 +57,21 @@ def main():
                 print_tree(tgt, max_depth, depth+1)
 
     print("explore...")
-    print_tree(root, 2)
+    # print_tree(root, 2)
 
     int_type_id = state.read_dict(state.read_root(), "Integer")
     int_type = UUID(state.read_value(int_type_id))
 
-    scd2 = SCD(scd_node, state)
-    for el in scd2.list_elements():
-        print(el)
+    # scd2 = SCD(scd_node, state)
+    # for el in scd2.list_elements():
+    #     print(el)
 
 
     model_id = state.create_node()
     scd = SCD(model_id, state)
-    scd.create_class("A")
+    scd.create_class("Abstract", abstract=True)
+    scd.create_class("A", min_c=1, max_c=10)
+    scd.create_inheritance("A", "Abstract")
     scd.create_model_ref("Integer", int_type)
     scd.create_attribute_link("A", "Integer", "size", False)
     scd.create_class("B")
@@ -73,7 +82,7 @@ def main():
         tgt_max_c=2,
     )
 
-    print_tree(model_id, 2)
+    # print_tree(model_id, 3)
 
 
     conf = Conformance(state, model_id, scd_node)
@@ -95,9 +104,9 @@ def main():
 
     print("checking conformance....")
     conf2 = Conformance(state, inst_id, model_id)
-    print(conf2.check_nominal(log=True))
+    print("conforms?", conf2.check_nominal(log=True))
 
-    # ramify(state, model_id)
+    ramify(state, model_id)
 
 if __name__ == "__main__":
     main()

services/scd.py

@@ -90,6 +90,15 @@ class SCD:
         Returns:
             Nothing.
         """
+        src, = self.bottom.read_outgoing_elements(self.model, source)
+        tgt, = self.bottom.read_outgoing_elements(self.model, target)
+        return self._create_association(name, src, tgt,
+            src_min_c, src_max_c,
+            tgt_min_c, tgt_max_c)
+
+    def _create_association(self, name: str, source: UUID, target: UUID,
+                           src_min_c: int = None, src_max_c: int = None,
+                           tgt_min_c: int = None, tgt_max_c: int = None):
 
         def set_cardinality(bound: str, value: int):
             # similar to set_cardinality function defined in create_class
@@ -105,10 +114,7 @@ class SCD:
             self.bottom.create_edge(_c_link, _scd_link, "Morphism")
 
         # create association + attributes + morphism links
-        assoc_edge = self.bottom.create_edge(
-            *self.bottom.read_outgoing_elements(self.model, source),
-            *self.bottom.read_outgoing_elements(self.model, target),
-        )  # create assoc edge
+        assoc_edge = self.bottom.create_edge(source, target)  # create assoc edge
         self.bottom.create_edge(self.model, assoc_edge, name)  # attach to model
         scd_node, = self.bottom.read_outgoing_elements(self.scd_model, "Association")  # retrieve type
         self.bottom.create_edge(assoc_edge, scd_node, "Morphism")  # create morphism link
@@ -166,11 +172,13 @@ class SCD:
         Returns:
             Nothing.
         """
+        tgt, = self.bottom.read_outgoing_elements(self.model, target)
+        return self._create_attribute_link(source, tgt, name, optional)
+
+    def _create_attribute_link(self, source: str, target: UUID, name: str, optional: bool):
         # create attribute link + morphism links
-        assoc_edge = self.bottom.create_edge(
-            *self.bottom.read_outgoing_elements(self.model, source),
-            *self.bottom.read_outgoing_elements(self.model, target),
-        )  # create v edge
+        src, = self.bottom.read_outgoing_elements(self.model, source)
+        assoc_edge = self.bottom.create_edge(src, target)  # create v edge
         self.bottom.create_edge(self.model, assoc_edge, f"{source}_{name}")  # attach to model
         scd_node, = self.bottom.read_outgoing_elements(self.scd_model, "AttributeLink")  # retrieve type
         self.bottom.create_edge(assoc_edge, scd_node, "Morphism")  # create morphism link
@@ -215,6 +223,7 @@ class SCD:
         self.bottom.create_edge(self.model, element_node, name)  # attach to model
         scd_node, = self.bottom.read_outgoing_elements(self.scd_model, "ModelRef")  # retrieve type
         self.bottom.create_edge(element_node, scd_node, "Morphism")  # create morphism link
+        return element_node
 
     def create_inheritance(self, child: str, parent: str):
         """
@@ -227,14 +236,25 @@ class SCD:
         Returns:
             Nothing.
         """
+        c, = self.bottom.read_outgoing_elements(self.model, child)
+        p, = self.bottom.read_outgoing_elements(self.model, parent)
+        return self._create_inheritance(c, p)
+
+
+    def _create_inheritance(self, child: UUID, parent: UUID):
         # create inheritance + morphism links
-        assoc_edge = self.bottom.create_edge(
-            *self.bottom.read_outgoing_elements(self.model, child),
-            *self.bottom.read_outgoing_elements(self.model, parent),
-        )  # create inheritance edge
-        self.bottom.create_edge(self.model, assoc_edge, f"{child}_inh_{parent}")  # attach to model
+        inh_edge = self.bottom.create_edge(child, parent)
+        child_name = self.get_class_name(child)
+        parent_name = self.get_class_name(parent)
+        self.bottom.create_edge(self.model, inh_edge, f"{child_name}_inh_{parent_name}")  # attach to model
         scd_node, = self.bottom.read_outgoing_elements(self.scd_model, "Inheritance")  # retrieve type
-        self.bottom.create_edge(assoc_edge, scd_node, "Morphism")  # create morphism link
+        self.bottom.create_edge(inh_edge, scd_node, "Morphism")  # create morphism link
+
+    def get_class_name(self, cls: UUID):
+        for key in self.bottom.read_keys(self.model):
+            el, = self.bottom.read_outgoing_elements(self.model, key)
+            if el == cls:
+                return key
 
     def add_constraint(self, element: str, code: str):
         """
@@ -278,6 +298,39 @@ class SCD:
             unsorted.append(f"{key} : {scd_names[element_type_node]}")
         return sorted(unsorted)
 
+    def get_classes(self):
+        class_node, = self.bottom.read_outgoing_elements(self.scd_model, "Class")
+        return self.get_typed_by(class_node)
+
+    def get_associations(self):
+        assoc_node, = self.bottom.read_outgoing_elements(self.scd_model, "Association")
+        return self.get_typed_by(assoc_node)
+
+    def get_inheritances(self):
+        inh_node, = self.bottom.read_outgoing_elements(self.scd_model, "Inheritance")
+        return self.get_typed_by(inh_node)
+
+    def get_typed_by(self, type_node: UUID):
+        name_to_instance = {}
+        for key in self.bottom.read_keys(self.model):
+            element, = self.bottom.read_outgoing_elements(self.model, key)
+            element_types = self.bottom.read_outgoing_elements(element, "Morphism")
+            if type_node in element_types:
+                name_to_instance[key] = element
+        # mapping from instance name to UUID
+        return name_to_instance
+
+
+    def get_attributes(self, class_name: str):
+        attr_link_node, = self.bottom.read_outgoing_elements(self.scd_model, "AttributeLink")
+        class_node, = self.bottom.read_outgoing_elements(self.model, class_name)
+        name_to_attr = {}
+        for edge in self.bottom.read_outgoing_edges(class_node):
+            edge_types = self.bottom.read_outgoing_elements(edge, "Morphism")
+            if attr_link_node in edge_types:
+                name_to_attr[key] = edge
+        return name_to_attr
+
     def delete_element(self, name: str):
         """
         Deletes an element from the model.

transformation/ramify.py

@@ -2,17 +2,152 @@ from state.base import State
 from uuid import UUID
 from services.bottom.V0 import Bottom
 from services.scd import SCD
+from framework.conformance import Conformance
+
 
 def ramify(state: State, model: UUID) -> UUID:
-    """
-    Parameters:
-        bottom: Bottom-service, wrapping MVS
-        model: An SCD-conforming meta-model to ramify
-    """
+
+    def print_tree(root, max_depth, depth=0):
+        print("  "*depth, "root=", root, "value=", state.read_value(root))
+        src,tgt = state.read_edge(root)
+        if src != None:
+            print("  "*depth, "src...")
+            print_tree(src, max_depth, depth+1)
+        if tgt != None:
+            print("  "*depth, "tgt...")
+            print_tree(tgt, max_depth, depth+1)
+        for edge in state.read_outgoing(root):
+            for edge_label in state.read_outgoing(edge):
+                [_,tgt] = state.read_edge(edge_label)
+                label = state.read_value(tgt)
+                print("  "*depth, " key:", label)
+            [_, tgt] = state.read_edge(edge)
+            value = state.read_value(tgt)
+            if value != None:
+                print("  "*depth, " ->", tgt, " (value:", value, ")")
+            else:
+                print("  "*depth, " ->", tgt)
+            if depth < max_depth:
+                if isinstance(value, str) and len(value) == 36:
+                    i = None
+                    try:
+                        i = UUID(value)
+                    except ValueError as e:
+                        # print("invalid UUID:", value)
+                        pass
+                    if i != None:
+                        print_tree(i, max_depth, depth+1)
+                print_tree(tgt, max_depth, depth+1)
+
+    bottom = Bottom(state)
+
+    scd_metamodel_id = state.read_dict(state.read_root(), "SCD")
+    scd_metamodel = UUID(state.read_value(scd_metamodel_id))
+
+    class_upper_card_node, = bottom.read_outgoing_elements(scd_metamodel, "Class_upper_cardinality")
+    src_upper_card_node, = bottom.read_outgoing_elements(scd_metamodel, "Association_source_upper_cardinality")
+    tgt_upper_card_node, = bottom.read_outgoing_elements(scd_metamodel, "Association_target_upper_cardinality")
+    attr_link_node, = bottom.read_outgoing_elements(scd_metamodel, "AttributeLink")
+    attr_link_name_node, = bottom.read_outgoing_elements(scd_metamodel, "AttributeLink_name")
+    glob_constr_node, = bottom.read_outgoing_elements(scd_metamodel, "GlobalConstraint")
+    inheritance_node, = bottom.read_outgoing_elements(scd_metamodel, "Inheritance")
+
+    string_type_id = state.read_dict(state.read_root(), "String")
+    string_type = UUID(state.read_value(string_type_id))
+
     scd = SCD(model, state)
 
+    # print_tree(model, 2)
+
+    # for el in SCD(scd_metamodel, state).list_elements():
+    #     print(el)
+
+    def find_outgoing_typed_by(src: UUID, type_node: UUID):
+        edges = []
+        for outgoing_edge in bottom.read_outgoing_edges(src):
+            for typedBy in bottom.read_outgoing_elements(outgoing_edge, "Morphism"):
+                if typedBy == type_node:
+                    edges.append(outgoing_edge)
+                    break
+        return edges
+
+    def navigate_modelref(node: UUID):
+        uuid = bottom.read_value(node)
+        return UUID(uuid)
+
+    def find_upper_cardinality(class_node: UUID, type_node: UUID):
+        upper_card_edges = find_outgoing_typed_by(class_node, type_node)
+        if len(upper_card_edges) == 1:
+            ref = bottom.read_edge_target(upper_card_edges[0])
+            integer, = bottom.read_outgoing_elements(
+                navigate_modelref(ref),
+                "integer")
+            # finally, the value we're looking for:
+            return bottom.read_value(integer)
+
+    def get_attributes(class_node: UUID):
+        attr_edges = find_outgoing_typed_by(class_node, attr_link_node)
+        result = []
+        for attr_edge in attr_edges:
+            name_edge, = find_outgoing_typed_by(attr_edge, attr_link_name_node)
+            if name_edge == None:
+                raise Exception("Expected attribute to have a name...")
+            ref_name = bottom.read_edge_target(name_edge)
+            string, = bottom.read_outgoing_elements(
+                navigate_modelref(ref_name),
+                "string")
+            attr_name = bottom.read_value(string)
+            ref_type = bottom.read_edge_target(attr_edge)
+            typ = navigate_modelref(ref_type)
+            result.append((attr_name, typ))
+        return result
+
+    ramified = state.create_node()
+    ramified_scd = SCD(ramified, state)
+
+    string_modelref = ramified_scd.create_model_ref("String", string_type)
+
+    print()
+
     classes = scd.get_classes()
-    print(classes)
+    for class_name, class_node in classes.items():
+        # For every class in our original model, create a class:
+        #   - abstract: False
+        #   - min-card: 0
+        #   - max-card: same as original
+        upper_card = find_upper_cardinality(class_node, class_upper_card_node)
+        print('creating class', class_name, "with upper card", upper_card)
+        ramified_scd.create_class(class_name, abstract=None, max_c=upper_card)
+
+        for (attr_name, attr_type) in get_attributes(class_node):
+            print('  creating attribute', attr_name, "with type String")
+            # Every attribute becomes 'string' type
+            # The string will be a Python expression
+            ramified_scd._create_attribute_link(class_name, string_modelref, attr_name, optional=False)
+
+    associations = scd.get_associations()
+    for assoc_name, assoc_node in associations.items():
+        # For every association in our original model, create an association:
+        #   - src-min-card: 0
+        #   - src-max-card: same as original
+        #   - tgt-min-card: 0
+        #   - tgt-max-card: same as original
+        src_upper_card = find_upper_cardinality(assoc_node, src_upper_card_node)
+        tgt_upper_card = find_upper_cardinality(assoc_node, tgt_upper_card_node)
+        print('creating assoc', assoc_name, "with src upper card", src_upper_card, "and tgt upper card", tgt_upper_card)
+        ramified_scd._create_association(assoc_name,
+            bottom.read_edge_source(assoc_node),
+            bottom.read_edge_target(assoc_node),
+            src_max_c=src_upper_card,
+            tgt_max_c=tgt_upper_card)
+
+    for inh_name, inh_node in scd.get_inheritances().items():
+        # Re-create inheritance links like in our original model:
+        print('creating inheritance', inh_name)
+        ramified_scd._create_inheritance(
+            bottom.read_edge_source(inh_node),
+            bottom.read_edge_target(inh_node))
 
-    attrs = scd.get_attributes('A')
-    print(attrs)
+    # The RAMified meta-model should also conform to 'SCD':
+    conf = Conformance(state, model, scd_metamodel)
+    print("conforms?", conf.check_nominal(log=True))