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collectserver.py
445 lines (353 loc) · 18.3 KB
/
collectserver.py
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#!/usr/bin/env python
import getopt
import json
import random
import sys
import threading
import time
import serial
from coapthon import defines
from coapthon.client.helperclient import HelperClient
from coapthon.resources.resource import Resource
from coapthon.server.coap import CoAP
__author__ = 'Giacomo Tanganelli'
class PowerResource(Resource):
def __init__(self, name="PowerResource", coap_server=None):
super(PowerResource, self).__init__(name, coap_server, visible=True,
observable=True, allow_children=False)
self.resource_type = "Power Resource"
self.content_type = "application/json"
self.cpu_power = 0
self.lpm_power = 0
self.listen_power = 0
self.transmit_power = 0
self.average_power = 0
self.aggregate_power = 0
self.period = 5
self.read_sensor(True)
self.value = [{"n": "cpu", "v": self.cpu_power, "u": "mW", "bt": time.time()},
{"n": "lpm", "v": self.lpm_power, "u": "mW"},
{"n": "listen", "v": self.listen_power, "u": "mW"},
{"n": "transmit", "v": self.transmit_power, "u": "mW"},
{"n": "average", "v": self.average_power, "u": "mW"},
{"n": "aggregate", "v": self.aggregate_power, "u": "mW"}]
def render_GET(self, request):
self.value = [{"n": "cpu", "v": self.cpu_power, "u": "mW", "bt": time.time()},
{"n": "lpm", "v": self.lpm_power, "u": "mW"},
{"n": "listen", "v": self.listen_power, "u": "mW"},
{"n": "transmit", "v": self.transmit_power, "u": "mW"},
{"n": "average", "v": self.average_power, "u": "mW"},
{"n": "aggregate", "v": self.aggregate_power, "u": "mW"}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
return self
def read_sensor(self, first=False):
self.cpu_power = random.uniform(0, 0.3)
self.lpm_power = random.uniform(0, 0.15)
self.listen_power = random.uniform(0, 0.4)
self.transmit_power = random.uniform(0, 0.2)
self.average_power = 0
self.aggregate_power = self.cpu_power + self.lpm_power + self.listen_power + self.transmit_power
self.value = [{"n": "cpu", "v": self.cpu_power, "u": "mW", "bt": time.time()},
{"n": "lpm", "v": self.lpm_power, "u": "mW"},
{"n": "listen", "v": self.listen_power, "u": "mW"},
{"n": "transmit", "v": self.transmit_power, "u": "mW"},
{"n": "average", "v": self.average_power, "u": "mW"},
{"n": "aggregate", "v": self.aggregate_power, "u": "mW"}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
if not self._coap_server.stopped.isSet():
timer = threading.Timer(self.period, self.read_sensor)
timer.setDaemon(True)
timer.start()
if not first and self._coap_server is not None:
self._coap_server.notify(self)
self.observe_count += 1
class TemperatureResource(Resource):
def __init__(self, name="TemperatureResource", coap_server=None, resource_key=None, subresources_keys=None):
super(TemperatureResource, self).__init__(name, coap_server, visible=True,
observable=True, allow_children=False)
self.resource_type = "temperature"
self.resource_key = resource_key
self.subresources_keys = subresources_keys
self.content_type = "application/json"
self.temperature = 0
self.period = 5
self.RD_registered = False
self.location_path = ""
self.read_sensor(True)
self.value = [{"n": "temperature", "v": self.temperature, "u": "Cel", "t": time.time()}]
def render_GET(self, request):
self.value = [{"n": "temperature", "v": self.temperature, "u": "Cel", "t": time.time()}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
return self
def read_sensor(self, first=False):
self.temperature = read_parameter_schema(self._coap_server, self.resource_key, self.subresources_keys[0])
self.value = [{"n": "temperature", "v": self.temperature, "u": "Cel", "t": time.time()}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
if self.temperature != -1:
if self.RD_registered is False:
self.location_path = self._coap_server.register_rd_resource(self.resource_type, self.resource_key)
self.RD_registered = True
else:
self._coap_server.refresh_rd_resource(self.location_path)
if not self._coap_server.stopped.isSet():
timer = threading.Timer(self.period, self.read_sensor)
timer.setDaemon(True)
timer.start()
if not first and self._coap_server is not None:
self._coap_server.notify(self)
self.observe_count += 1
class BatteryResource(Resource):
def __init__(self, name="BatteryResource", coap_server=None):
super(BatteryResource, self).__init__(name, coap_server, visible=True,
observable=True, allow_children=False)
self.resource_type = "battery"
self.content_type = "application/json"
self.voltage = 0
self.indicator = 0
self.period = 5
self.read_sensor(True)
self.value = [{"n": "voltage", "v": self.voltage, "u": "V", "bt": time.time()},
{"n": "indicator", "v": self.indicator, "u": "%"}]
def render_GET(self, request):
self.value = [{"n": "voltage", "v": self.voltage, "u": "V", "bt": time.time()},
{"n": "indicator", "v": self.indicator, "u": "%"}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
return self
def read_sensor(self, first=False):
self.voltage = random.uniform(0, 5)
self.indicator = random.randint(1, 10)
self.value = [{"n": "voltage", "v": self.voltage, "u": "V", "bt": time.time()},
{"n": "indicator", "v": self.indicator, "u": "%"}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
if not self._coap_server.stopped.isSet():
timer = threading.Timer(self.period, self.read_sensor)
timer.setDaemon(True)
timer.start()
if not first and self._coap_server is not None:
self._coap_server.notify(self)
self.observe_count += 1
class RadioResource(Resource):
def __init__(self, name="RadioResource", coap_server=None, parameter_name=None):
super(RadioResource, self).__init__(name, coap_server, visible=True,
observable=True, allow_children=False)
self.resource_type = "radio"
self.parameter_name = parameter_name
self.content_type = "application/json"
self.rssi = 0
self.latency = 0
self.best_neighbor_id = "0"
self.best_neighbor_etx = 0
self.byte_sent = 0
self.byte_received = 0
self.period = 5
self.read_sensor(True)
self.value = [{"n": "rssi", "v": self.rssi, "u": "dBm", "bt": time.time()},
{"n": "latency", "v": self.latency, "u": "ms"},
{"n": "best_neighbor_id", "vs": self.best_neighbor_id},
{"n": "best_neighbor_etx", "v": self.best_neighbor_etx},
{"n": "byte_sent", "v": self.byte_sent},
{"n": "byte_received", "v": self.byte_received}]
def render_GET(self, request):
self.value = [{"n": "rssi", "v": self.rssi, "u": "dBm", "bt": time.time()},
{"n": "latency", "v": self.latency, "u": "ms"},
{"n": "best_neighbor_id", "vs": self.best_neighbor_id},
{"n": "best_neighbor_etx", "v": self.best_neighbor_etx},
{"n": "byte_sent", "v": self.byte_sent},
{"n": "byte_received", "v": self.byte_received}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
return self
def read_sensor(self, first=False):
self.rssi = random.uniform(-90, -10)
self.latency = random.uniform(0, 50)
self.best_neighbor_id = "0"
self.best_neighbor_etx = random.randint(1, 10)
self.byte_sent = random.randint(1, 500)
self.byte_received = random.randint(1, 500)
self.value = [{"n": "rssi", "v": self.rssi, "u": "dBm", "bt": time.time()},
{"n": "latency", "v": self.latency, "u": "ms"},
{"n": "best_neighbor_id", "vs": self.best_neighbor_id},
{"n": "best_neighbor_etx", "v": self.best_neighbor_etx},
{"n": "byte_sent", "v": self.byte_sent},
{"n": "byte_received", "v": self.byte_received}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
if not self._coap_server.stopped.isSet():
timer = threading.Timer(self.period, self.read_sensor)
timer.setDaemon(True)
timer.start()
if not first and self._coap_server is not None:
self._coap_server.notify(self)
self.observe_count += 1
class HumidityResource(Resource):
def __init__(self, name="HumidityResource", coap_server=None, resource_key=None, subresources_keys=list):
super(HumidityResource, self).__init__(name, coap_server, visible=True,
observable=True, allow_children=False)
self.resource_type = "humidity"
self.resource_key = resource_key
self.subresources_keys = subresources_keys
self.content_type = "application/json"
self.humidity = 0
self.period = 5
self.RD_registered = False
self.location_path = ""
self.read_sensor(True)
self.value = [{"n": "humidity", "v": self.humidity, "u": "%RH", "t": time.time()}]
def render_GET(self, request):
self.value = [{"n": "humidity", "v": self.humidity, "u": "%RH", "t": time.time()}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
return self
def read_sensor(self, first=False):
self.humidity = read_parameter_schema(self._coap_server, self.resource_key, self.subresources_keys[0])
self.value = [{"n": "humidity", "v": self.humidity, "u": "%RH", "t": time.time()}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
if self.humidity != -1:
if self.RD_registered is False:
self.location_path = self._coap_server.register_rd_resource(self.resource_type, self.resource_key)
self.RD_registered = True
else:
self._coap_server.refresh_rd_resource(self.location_path)
if not self._coap_server.stopped.isSet():
timer = threading.Timer(self.period, self.read_sensor)
timer.setDaemon(True)
timer.start()
if not first and self._coap_server is not None:
self._coap_server.notify(self)
self.observe_count += 1
class LightResource(Resource):
def __init__(self, name="LightResource", coap_server=None, resource_key=None, subresources_keys=None):
super(LightResource, self).__init__(name, coap_server, visible=True,
observable=True, allow_children=False)
self.resource_type = "light"
self.resource_key = resource_key
self.subresources_keys = subresources_keys
self.content_type = "application/json"
self.light1 = 0
self.light2 = 0
self.period = 5
self.RD_registered = False
self._registration_to_rd_thread = threading.Thread(target=self._registration_to_rd)
self._registration_to_rd_thread.daemon = True
self. _registration_to_rd_thread.start()
self.location_path = ""
self.read_sensor(True)
self.value = [{"n": "light1", "v": self.light1, "u": "lx", "bt": time.time()},
{"n": "light2", "v": self.light2, "u": "lx", "bt": time.time()}]
def _registration_to_rd(self):
while True:
if self.RD_registered is False:
self.location_path = self._coap_server.register_rd_resource(self.resource_type, self.resource_key)
self.RD_registered = True
else:
self._coap_server.refresh_rd_resource(self.location_path)
time.sleep(60)
def render_GET(self, request):
self.value = [{"n": "light1", "v": self.light1, "u": "lx", "bt": time.time()},
{"n": "light2", "v": self.light2, "u": "lx", "bt": time.time()}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
return self
def read_sensor(self, first=False):
self.light1 = read_parameter_schema(self._coap_server, self.resource_key, self.subresources_keys[0])
self.light2 = read_parameter_schema(self._coap_server, self.resource_key, self.subresources_keys[1])
self.value = [{"n": "light1", "v": self.light1, "u": "lx", "bt": time.time()},
{"n": "light2", "v": self.light2, "u": "lx"}]
self.payload = (defines.Content_types["application/json"], json.dumps(self.value))
if not self._coap_server.stopped.isSet():
timer = threading.Timer(self.period, self.read_sensor)
timer.setDaemon(True)
timer.start()
if not first and self._coap_server is not None:
self._coap_server.notify(self)
self.observe_count += 1
class CoAPServer(CoAP):
def __init__(self, host, port, multicast=False):
CoAP.__init__(self, (host, port), multicast)
self.client = HelperClient(server=(defines.RD_HOST, defines.RD_PORT))
self.node_resource_schema = json.load(open(defines.NODE_RESOURCE_SCHEMA_PATH, "r"))
self.node_name = self.node_resource_schema["node"]["name"]["value"]
self.parameter_schema = json.load(open(defines.SERIAL_PARAMETER_SCHEMA_PATH, "r"))
self.parameter_schema_lock = threading.Lock()
serial_listener = threading.Thread(target=self.serial_listen)
serial_listener.setDaemon(True)
serial_listener.start()
self.rd_discovery()
print "CoAP Server start on " + host + ":" + str(port)
def serial_listen(self):
port = serial.Serial(defines.SERIAL_PORT)
port.baudrate = defines.SERIAL_BAUDRATE
while True:
try:
received_parameter_dict = json.loads(port.readline())
except ValueError:
continue
self.parameter_schema_lock.acquire()
for key in self.parameter_schema:
subresources = self.parameter_schema[key]
for subkey in subresources:
if subkey in received_parameter_dict:
value = received_parameter_dict[subkey]
typeof = subresources[subkey]["parameter"]["type"]
if (typeof == "integer" and type(value) is int) or (typeof == "string" and type(value) is str):
subresources[subkey]["parameter"]["value"] = value
else:
subresources[subkey]["parameter"]["value"] = -1 # error code
self.parameter_schema_lock.release()
print "schema parametri " + str(self.parameter_schema)
def rd_discovery(self):
# Test discover
path = "/.well-known/core"
response = self.client.get(path)
print response.pretty_print()
def register_rd_resource(self, resource_type, key):
path = "rd?ep=" + self.node_name + "&con=coap://" + str(self.server_address[0]) + ":" + str(self.server_address[1])
ct = {'content_type': defines.Content_types["application/link-format"]}
payload = '</' + key + '>;ct=41;' + resource_type + ';if="sensor";'
response = self.client.post(path, payload, None, None, **ct)
print response.pretty_print()
return response.location_path
def refresh_rd_resource(self, location_path):
path = location_path
response = self.client.post(path, '')
print response.pretty_print()
def usage(): # pragma: no cover
print "coapserver.py -i <ip address> -p <port>"
def read_parameter_schema(coap_server, key, subresource):
coap_server.parameter_schema_lock.acquire()
result = coap_server.parameter_schema[key][subresource]["parameter"]["value"]
coap_server.parameter_schema_lock.release()
return result
def main(argv): # pragma: no cover
ip = "127.0.0.1"
port = 5681
multicast = False
try:
opts, args = getopt.getopt(argv, "hi:p:m", ["ip=", "port=", "multicast"])
except getopt.GetoptError:
usage()
sys.exit(2)
for opt, arg in opts:
if opt == '-h':
usage()
sys.exit()
elif opt in ("-i", "--ip"):
ip = arg
elif opt in ("-p", "--port"):
port = int(arg)
elif opt in ("-m", "--multicast"):
multicast = True
server = CoAPServer(ip, port, multicast)
resources = server.node_resource_schema["node"]["resources"]
for key in resources:
class_name = resources[key]["className"]["value"]
resource_key = resources[key]["resourceKey"]["value"]
subresources_keys = resources[key]["subresources"]["items"]
resource = eval(class_name + "(coap_server=server, resource_key='" + resource_key +
"', subresources_keys=subres_key)", {"__builtins__": globals()},
{"subres_key": subresources_keys, "server": server})
server.add_resource(resource_key + '/', resource)
try:
server.listen(10)
except KeyboardInterrupt:
print "Server Shutdown"
server.close()
print "Exiting..."
if __name__ == "__main__": # pragma: no cover
main(sys.argv[1:])