pygui: added wrapper class for sessions returned by grpc GetSession

daemon/core/gui/coreclient.py

@@ -48,6 +48,7 @@ from core.gui.wrappers import (
     NodeServiceData,
     NodeType,
     Position,
+    Session,
     SessionLocation,
     SessionState,
     ThroughputsEvent,
@@ -311,8 +312,8 @@ class CoreClient:
         # get session data
         try:
             response = self.client.get_session(self.session_id)
-            session = response.session
+            session = Session.from_proto(response.session)
-            self.state = SessionState(session.state)
+            self.state = session.state
             self.handling_events = self.client.events(
                 self.session_id, self.handle_events
             )
@@ -349,9 +350,7 @@ class CoreClient:
             self.ifaces_manager.joined(session.links)
 
             # draw session
-            nodes = [Node.from_proto(x) for x in session.nodes]
+            self.app.canvas.reset_and_redraw(session)
-            links = [Link.from_proto(x) for x in session.links]
-            self.app.canvas.reset_and_redraw(nodes, links)
 
             # get mobility configs
             response = self.client.get_mobility_configs(self.session_id)

daemon/core/gui/graph/graph.py

@@ -22,7 +22,7 @@ from core.gui.graph.shape import Shape
 from core.gui.graph.shapeutils import ShapeType, is_draw_shape, is_marker
 from core.gui.images import ImageEnum, TypeToImage
 from core.gui.nodeutils import NodeDraw, NodeUtils
-from core.gui.wrappers import Interface, Link, LinkType, Node, ThroughputsEvent
+from core.gui.wrappers import Interface, Link, LinkType, Node, Session, ThroughputsEvent
 
 if TYPE_CHECKING:
     from core.gui.app import Application
@@ -127,7 +127,7 @@ class CanvasGraph(tk.Canvas):
         )
         self.configure(scrollregion=self.bbox(tk.ALL))
 
-    def reset_and_redraw(self, nodes: List[Node], links: List[Link]) -> None:
+    def reset_and_redraw(self, session: Session) -> None:
         # reset view options to default state
         self.show_node_labels.set(True)
         self.show_link_labels.set(True)
@@ -152,7 +152,7 @@ class CanvasGraph(tk.Canvas):
         self.wireless_edges.clear()
         self.wireless_network.clear()
         self.drawing_edge = None
-        self.draw_session(nodes, links)
+        self.draw_session(session)
 
     def setup_bindings(self) -> None:
         """
@@ -325,19 +325,20 @@ class CanvasGraph(tk.Canvas):
         self.nodes[node.id] = node
         self.core.canvas_nodes[core_node.id] = node
 
-    def draw_session(self, nodes: List[Node], links: List[Link]) -> None:
+    def draw_session(self, session: Session) -> None:
         """
         Draw existing session.
         """
         # draw existing nodes
-        for core_node in nodes:
+        for core_node in session.nodes:
+            logging.debug("drawing node: %s", core_node)
             # peer to peer node is not drawn on the GUI
             if NodeUtils.is_ignore_node(core_node.type):
                 continue
             self.add_core_node(core_node)
 
             # draw existing links
-        for link in links:
+        for link in session.links:
             logging.debug("drawing link: %s", link)
             canvas_node1 = self.core.canvas_nodes[link.node1_id]
             canvas_node2 = self.core.canvas_nodes[link.node2_id]

daemon/core/gui/wrappers.py

@@ -545,6 +545,27 @@ class Node:
         )
 
 
+@dataclass
+class Session:
+    id: int
+    state: SessionState
+    nodes: List[Node]
+    links: List[Link]
+    dir: str
+
+    @classmethod
+    def from_proto(cls, proto: core_pb2.Session) -> "Session":
+        nodes = [Node.from_proto(x) for x in proto.nodes]
+        links = [Link.from_proto(x) for x in proto.links]
+        return Session(
+            id=proto.id,
+            state=SessionState(proto.state),
+            nodes=nodes,
+            links=links,
+            dir=proto.dir,
+        )
+
+
 @dataclass
 class LinkEvent:
     message_type: MessageType