OpenstackRouterManager impl. added

implementation/network/OpenstackRouterManager.py

+from typing import Optional
+
+from openstack.exceptions import ResourceNotFound
+
+from interface.network.Router import Router
+from interface.network.RouterManager import RouterManager
+
+
+class OpenstackRouterManager(RouterManager):
+
+    def __init__(self, openstack) -> None:
+        super().__init__()
+
+        self.openstack = openstack
+
+    @staticmethod
+    def os_router_to_rc_router(os_router):
+        return Router(
+            os_router.id,
+            os_router.name,
+            os_router.status,
+            os_router.created_at
+        )
+
+    def create(self) -> Router:
+        os_router = self.openstack.network.create_router()
+
+        return self.os_router_to_rc_router(os_router)
+
+    def get(self, id) -> Optional[Router]:
+        try:
+            os_router = self.openstack.network.get_router(id)
+        except ResourceNotFound:
+            return None
+
+        return self.os_router_to_rc_router(os_router)
+
+    def delete(self, id) -> bool:
+        try:
+            self.openstack.network.delete_router(id)
+        except ResourceNotFound:
+            return False
+
+        return True
+
+    def list(self) -> []:
+        routers = []
+
+        for os_router in self.openstack.network.routers():
+            routers.append(self.os_router_to_rc_router(os_router))
+
+        return routers