+# Copyright 2023 highstreet technologies GmbH
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#!/usr/bin/python
+
+"""
+A Class representing a Tower to mount O-RAN RUs
+It can be interpreted as 'resource pool' for physical network
+functions.
+"""
+from typing import overload
+from network_generation.model.python.o_ran_object import IORanObject
+from network_generation.model.python.o_ran_ru import ORanRu
+from network_generation.model.python.o_ran_node import ORanNode
+from network_generation.model.python.o_ran_termination_point import ORanTerminationPoint
+import xml.etree.ElementTree as ET
+
+
+# Define the "IORanDu" interface
+class ITower(IORanObject):
+ def __init__(self, o_ran_ru_count: int, **kwargs):
+ super().__init__(**kwargs)
+ self._o_ran_ru_count = o_ran_ru_count
+
+
+# Implement a concrete O-RAN Node class
+class Tower(ORanNode):
+ def __init__(self, tower_data: ITower = None, **kwargs):
+ super().__init__(tower_data, **kwargs)
+ self._o_ran_ru_count = (
+ tower_data["oRanRuCount"]
+ if tower_data and "oRanRuCount" in tower_data
+ else 3
+ )
+ self._o_ran_rus: list[ORanRu] = self._create_o_ran_rus()
+
+ def _create_o_ran_rus(self) -> list[ORanRu]:
+ result: list[ORanRu] = []
+ for index in range(self._o_ran_ru_count):
+ s: str = "00" + str(index)
+ name: str = "-".join(
+ [self.name.replace("Tower", "RU"), s[len(s) - 2 : len(s)]]
+ )
+ cell_count: int = self.parent.parent.parent.parent.parent.configuration()[
+ "pattern"
+ ]["o-ran-ru"]["nr-cell-du-count"]
+ cell_angle : int = self.parent.parent.parent.parent.parent.configuration()[
+ "pattern"
+ ]["nr-cell-du"]["cell-angle"]
+ ru_angle: int = cell_count * cell_angle
+ ru_azimuth: int = index * ru_angle
+ result.append(
+ ORanRu(
+ {
+ "name": name,
+ "geoLocation": self.geoLocation,
+ "position": self.position,
+ "layout": self.layout,
+ "spiralRadiusProfile": self.spiralRadiusProfile,
+ "parent": self,
+ "cellCount": cell_count,
+ "ruAngle": ru_angle,
+ "ruAzimuth": ru_azimuth,
+ }
+ )
+ )
+ return result
+
+ @property
+ def o_ran_rus(self) -> list[ORanRu]:
+ return self._o_ran_rus
+
+ @property
+ def termination_points(self) -> list[ORanTerminationPoint]:
+ result: list[ORanTerminationPoint] = super().termination_points
+ phy_tp: str = "-".join([self.name, "phy".upper()])
+ result.append({"tp-id": phy_tp})
+ for interface in ["e2", "o1", "ofhm", "ofhc", "ofhu","ofhs"]:
+ result.append( {
+ "tp-id": "-".join([self.name, interface.upper()]),
+ "supporting-termination-point": [
+ {
+ "network-ref": type(self.parent.parent.parent.parent),
+ "node-ref":self.name,
+ "tp-ref": phy_tp
+ }
+ ]
+ })
+ return result
+
+ def to_topology_nodes(self) -> list[dict[str, dict]]:
+ result: list[dict[str, dict]] = super().to_topology_nodes()
+ for o_ran_ru in self.o_ran_rus:
+ result.extend(o_ran_ru.to_topology_nodes())
+ return result
+
+ def to_topology_links(self) -> list[dict[str, dict]]:
+ result: list[dict[str, dict]] = super().to_topology_links()
+ for o_ran_ru in self.o_ran_rus:
+ result.extend(o_ran_ru.to_topology_links())
+ return result
+
+ def toKml(self) -> ET.Element:
+ tower: ET.Element = ET.Element("Folder")
+ open: ET.Element = ET.SubElement(tower, "open")
+ open.text = "1"
+ name: ET.Element = ET.SubElement(tower, "name")
+ name.text = self.name
+ for o_ran_ru in self.o_ran_rus:
+ tower.append(o_ran_ru.toKml())
+ return tower
+
+
+ def toSvg(self) -> None:
+ return None