fix: restore entity

Author: uwzm

frost_sta_client/model/__init__.py

@@ -0,0 +1,13 @@
+from frost_sta_client.model import actuator
+from frost_sta_client.model import datastream
+from frost_sta_client.model import entity
+from frost_sta_client.model import feature_of_interest
+from frost_sta_client.model import historical_location
+from frost_sta_client.model import location
+from frost_sta_client.model import multi_datastream
+from frost_sta_client.model import observation
+from frost_sta_client.model import observedproperty
+from frost_sta_client.model import sensor
+from frost_sta_client.model import task
+from frost_sta_client.model import tasking_capability
+from frost_sta_client.model import thing

frost_sta_client/model/entity.py

@@ -0,0 +1,128 @@
+# Copyright (C) 2021 Fraunhofer Institut IOSB, Fraunhoferstr. 1, D 76131
+# Karlsruhe, Germany.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from abc import ABC
+from frost_sta_client.service.sensorthingsservice import SensorThingsService
+
+
+class Entity(ABC):
+    """
+    An abstract representation of an entity.
+    """
+    def __init__(self,
+                 id=None,
+                 self_link='',
+                 service=None):
+        self.id = id
+        self.self_link = self_link
+        self.service = service
+
+    @property
+    def id(self):
+        return self._id
+
+    @id.setter
+    def id(self, value):
+        if value is None:
+            self._id = None
+            return
+        if isinstance(value, int) or isinstance(value, str):
+            self._id = value
+            return
+        raise ValueError('id of entity should be of type int or str!')
+
+    @property
+    def self_link(self):
+        return self._self_link
+
+    @self_link.setter
+    def self_link(self, value):
+        if not isinstance(value, str):
+            raise ValueError('self_link should be of type str!')
+        self._self_link = value
+
+    @property
+    def service(self):
+        return self._service
+
+    @service.setter
+    def service(self, value):
+        if value is None or isinstance(value, SensorThingsService):
+            self._service = value
+            return
+        raise ValueError('service should be of type SensorThingsService')
+
+    def set_service(self, service):
+        if self.service != service:
+            self.service = service
+            self.ensure_service_on_children(service)
+
+    @property
+    def IOT_COUNT(self):
+        return 'iot.count'
+
+    @property
+    def AT_IOT_COUNT(self):
+        return '@iot.count'
+
+    @property
+    def IOT_NAVIGATION_LINK(self):
+        return 'iot.navigationLink'
+
+    @property
+    def AT_IOT_NAVIGATION_LINK(self):
+        return '@iot.navigationLink'
+
+    @property
+    def IOT_NEXT_LINK(self):
+        return 'iot.nextLink'
+
+    @property
+    def AT_IOT_NEXT_LINK(self):
+        return '@iot.nextLink'
+
+    @property
+    def IOT_SELF_LINK(self):
+        return 'iot.selfLink'
+
+    @property
+    def AT_IOT_SELF_LINK(self):
+        return '@iot.selfLink'
+
+    def __eq__(self, other):
+        if other is None:
+            return False
+        if not isinstance(other, type(self)):
+            return False
+        if id(self) == id(other):
+            return True
+        if self.id is not None and other.id is not None:
+            if self.id != other.id:
+                return False
+        return True
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __getstate__(self):
+        data = {}
+        if self.id is not None and self.id != '':
+            data['@iot.id'] = self.id
+        return data
+
+    def __setstate__(self, state):
+        self.id = state.get('@iot.id', None)
+        self.self_link = state.get('@iot.selfLink', '')