span rel="">
|
40
|
+ Next the '_after_action' hook is executed.
|
|
|
41
|
+
|
|
|
42
|
+ """
|
|
|
43
|
+ try:
|
|
|
44
|
+ handlers = self.route_map[msg.action]
|
|
|
45
|
+ except KeyError:
|
|
|
46
|
+ _raise_key_error(msg.action, self._ocpp_version)
|
|
|
47
|
+ return
|
|
|
48
|
+
|
|
|
49
|
+ if not handlers.get("_skip_schema_validation", False):
|
|
|
50
|
+ validate_payload(msg, self._ocpp_version)
|
|
|
51
|
+ # OCPP uses camelCase for the keys in the payload. It's more pythonic
|
|
|
52
|
+ # to use snake_case for keyword arguments. Therefore the keys must be
|
|
|
53
|
+ # 'translated'. Some examples:
|
|
|
54
|
+ #
|
|
|
55
|
+ # * chargePointVendor becomes charge_point_vendor
|
|
|
56
|
+ # * firmwareVersion becomes firmwareVersion
|
|
|
57
|
+ if msg.payload is None:
|
|
|
58
|
+ msg.payload = {}
|
|
|
59
|
+ snake_case_payload = camel_to_snake_case(msg.payload)
|
|
|
60
|
+
|
|
|
61
|
+ try:
|
|
|
62
|
+ handler = handlers["_on_action"]
|
|
|
63
|
+ except KeyError:
|
|
|
64
|
+ _raise_key_error(msg.action, self._ocpp_version)
|
|
|
65
|
+
|
|
|
66
|
+ try:
|
|
|
67
|
+ response = handler(**snake_case_payload)
|
|
|
68
|
+ if inspect.isawaitable(response):
|
|
|
69
|
+ response = await response
|
|
|
70
|
+ except Exception as e:
|
|
|
71
|
+ LOGGER.exception("Error while handling request '%s'", msg)
|
|
|
72
|
+ response = msg.create_call_error(e).to_json()
|
|
|
73
|
+ await self._send(response)
|
|
|
74
|
+
|
|
|
75
|
+ return
|
|
|
76
|
+
|
|
|
77
|
+ temp_response_payload = asdict(response)
|
|
|
78
|
+
|
|
|
79
|
+ # Remove nones ensures that we strip out optional arguments
|
|
|
80
|
+ # which were not set and have a default value of None
|
|
|
81
|
+ response_payload = remove_nones(temp_response_payload)
|
|
|
82
|
+
|
|
|
83
|
+ # The response payload must be 'translated' from snake_case to
|
|
|
84
|
+ # camelCase. So:
|
|
|
85
|
+ #
|
|
|
86
|
+ # * charge_point_vendor becomes chargePointVendor
|
|
|
87
|
+ # * firmware_version becomes firmwareVersion
|
|
|
88
|
+ camel_case_payload = snake_to_camel_case(response_payload)
|
|
|
89
|
+
|
|
|
90
|
+ response = msg.create_call_result(camel_case_payload)
|
|
|
91
|
+
|
|
|
92
|
+ if not handlers.get("_skip_schema_validation", False):
|
|
|
93
|
+ validate_payload(response, self._ocpp_version)
|
|
|
94
|
+
|
|
|
95
|
+ await self._send(response.to_json())
|
|
|
96
|
+
|
|
|
97
|
+ try:
|
|
|
98
|
+ handler = handlers["_after_action"]
|
|
|
99
|
+ # Create task to avoid blocking when making a call inside the
|
|
|
100
|
+ # after handler
|
|
|
101
|
+ response = handler(**snake_case_payload)
|
|
|
102
|
+ if inspect.isawaitable(response):
|
|
|
103
|
+ asyncio.ensure_future(response)
|
|
|
104
|
+ except KeyError:
|
|
|
105
|
+ # '_on_after' hooks are not required. Therefore ignore exception
|
|
|
106
|
+ # when no '_on_after' hook is installed.
|
|
|
107
|
+ pass
|
|
|
108
|
+ return response
|
|
|
109
|
+
|
|
|
110
|
+
|
|
|
111
|
+class ChargePoint(cp):
|
|
|
112
|
+
|
|
|
113
|
+ @on(Action.BootNotification)
|
|
|
114
|
+ def on_boot_notification(
|
|
|
115
|
+ self, charge_point_vendor: str, charge_point_model: str, **kwargs):
|
|
|
116
|
+ pprint(kwargs)
|
|
|
117
|
+ return call_result.BootNotificationPayload(
|
|
|
118
|
+ current_time=datetime.utcnow().isoformat(),
|
|
|
119
|
+ interval=10,
|
|
|
120
|
+ status=RegistrationStatus.accepted,
|
|
|
121
|
+ )
|
|
|
122
|
+
|
|
|
123
|
+ @on(Action.Authorize)
|
|
|
124
|
+ def on_authorization(self, id_tag):
|
|
|
125
|
+ # pprint(kwargs)
|
|
|
126
|
+ idti = IdTagInfo(status=AuthorizationStatus.accepted)
|
|
|
127
|
+ # idti.status = AuthorizationStatus.accepted
|
|
|
128
|
+
|
|
|
129
|
+ return call_result.AuthorizePayload(
|
|
|
130
|
+ id_tag_info=idti
|
|
|
131
|
+ )
|
|
|
132
|
+
|
|
|
133
|
+ @on(Action.StatusNotification)
|
|
|
134
|
+ def on_status_notification(self, id_tag):
|
|
|
135
|
+ # pprint(kwargs)
|
|
|
136
|
+ # idti = IdTagInfo(status=AuthorizationStatus.accepted)
|
|
|
137
|
+ # idti.status = AuthorizationStatus.accepted
|
|
|
138
|
+ return call_result.StatusNotificationPayload()
|
|
|
139
|
+
|
|
|
140
|
+ @on(Action.Heartbeat, skip_schema_validation=True)
|
|
|
141
|
+ def on_heartbeat(self, **kwargs): # receives empty payload from CP
|
|
|
142
|
+ print("--HeartBeat--")
|
|
|
143
|
+ print(kwargs)
|
|
|
144
|
+ return call_result.HeartbeatPayload(
|
|
|
145
|
+ current_time=datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%SZ")
|
|
|
146
|
+ )
|
|
|
147
|
+
|
|
|
148
|
+
|
|
|
149
|
+
|
|
|
150
|
+async def on_connect(websocket, path):
|
|
|
151
|
+ """For every new charge point that connects, create a ChargePoint
|
|
|
152
|
+ instance and start listening for messages.
|
|
|
153
|
+ """
|
|
|
154
|
+ try:
|
|
|
155
|
+ requested_protocols = websocket.request_headers["Sec-WebSocket-Protocol"]
|
|
|
156
|
+ except KeyError:
|
|
|
157
|
+ logging.error("Client hasn't requested any Subprotocol. Closing Connection")
|
|
|
158
|
+ return await websocket.close()
|
|
|
159
|
+ if websocket.subprotocol:
|
|
|
160
|
+ logging.info("Protocols Matched: %s", websocket.subprotocol)
|
|
|
161
|
+ else:
|
|
|
162
|
+ # In the websockets lib if no subprotocols are supported by the
|
|
|
163
|
+ # client and the server, it proceeds without a subprotocol,
|
|
|
164
|
+ # so we have to manually close the connection.
|
|
|
165
|
+ logging.warning(
|
|
|
166
|
+ "Protocols Mismatched | Expected Subprotocols: %s,"
|
|
|
167
|
+ " but client supports %s | Closing connection",
|
|
|
168
|
+ websocket.available_subprotocols,
|
|
|
169
|
+ requested_protocols,
|
|
|
170
|
+ )
|
|
|
171
|
+ return await websocket.close()
|
|
|
172
|
+
|
|
|
173
|
+ charge_point_id = path.strip("/")
|
|
|
174
|
+ cp = ChargePoint(charge_point_id, websocket)
|
|
|
175
|
+
|
|
|
176
|
+ await cp.start()
|
|
|
177
|
+
|
|
|
178
|
+
|
|
|
179
|
+async def main():
|
|
|
180
|
+ server = await websockets.serve(
|
|
|
181
|
+ on_connect, "0.0.0.0", 9000, subprotocols=["ocpp1.6"]
|
|
|
182
|
+ )
|
|
|
183
|
+
|
|
|
184
|
+ logging.info("Server Started listening to new connections...")
|
|
|
185
|
+ await server.wait_closed()
|
|
|
186
|
+
|
|
|
187
|
+
|
|
|
188
|
+if __name__ == "__main__":
|
|
|
189
|
+ # asyncio.run() is used when running this example with Python >= 3.7v
|
|
|
190
|
+ asyncio.run(main())
|
|
|
@@ -0,0 +1 @@
|
|
|
1
|
+Subproject commit a9df8ebdaee922c323be1d06eace2d5a35a5f747
|