def device_method_callback(self, method_name, payload, user_context):
log = logger.getLogger()
log.info(
"\nMethod callback called with:\nmethodName = {0}\npayload = {1}\ncontext = {2}"
.format(method_name, payload, user_context))
deviceState.incDirectCount()
log.info("Total calls confirmed: {0}".format(
deviceState.getDirectCount()))
# message format expected:
# {
# "methodName": "reboot",
# "responseTimeoutInSeconds": 200,
# "payload": {
# "input1": "someInput",
# "input2": "anotherInput"
# ...
# }
# }
# lookup if the method has been registered to a function
response = None
if method_name.upper() in self.methodCallbackList:
params = json.loads(payload)
response = self.methodCallbackList[method_name.upper()](params)
device_method_return_value = DeviceMethodReturnValue()
device_method_return_value.response = "{ \"Response\": \"" + response[
1] + "\" }"
device_method_return_value.status = response[0]
return device_method_return_value
def device_twin_callback(self, update_state, payload, user_context):
log = logger.getLogger()
log.info("Twin callback called with:")
log.info("updateStatus: {0}".format(update_state))
log.info("context: {0}".format(user_context))
log.info("payload: {0}".format(payload))
deviceState.incDesiredCount()
log.info("Total calls confirmed: {0}\n".format(
deviceState.getDirectCount()))
# twin patch received
if update_state == iothub_client.IoTHubTwinUpdateState.PARTIAL:
params = json.loads(payload, object_pairs_hook=OrderedDict)
propertyName = list(params)[0]
if propertyName.upper() in self.desiredCallbackList:
status = self.desiredCallbackList[propertyName.upper()](
params[propertyName])
self.echoBackReported(propertyName, params, status)
deviceState.patchLastTwin(payload, True)
# full twin update received
elif update_state == iothub_client.IoTHubTwinUpdateState.COMPLETE:
complete = json.loads(payload, object_pairs_hook=OrderedDict)
for desired in complete["desired"]:
if desired != "$version" and desired in complete["reported"]:
if complete["desired"]["$version"] != complete["reported"][
desired]["desiredVersion"]:
if complete["reported"][desired]["value"] != complete[
"desired"][desired]["value"]:
if desired.upper() in self.desiredCallbackList:
status = self.desiredCallbackList[
desired.upper()](
complete["desired"][desired])
self.echoBackReported(desired,
complete["desired"],
status)
else:
status = (200, "completed")
self.echoBackReported(desired, complete["desired"],
status)
deviceState.setLastTwin(payload)
def do_GET(self):
if self.path.upper() == "/START" or self.path.upper() == "/":
self.set_headers(200, "text/html; charset=utf-8")
content = open("../content/start.html").read()
# modify content to reflect config state
content = content.replace(
"{{connstr}}", configState.config["hubConnectionString"]
if configState.config["hubConnectionString"] != "" else "")
for key, value in configState.config["sendData"].items():
content = content.replace("{{" + key + "Check}}",
"checked" if value else "")
content = content.replace(
"{{interval}}",
"5" if configState.config["telemetryInterval"] < 5 else str(
configState.config["telemetryInterval"]))
content = content.replace(
"{{debug}}", "checked" if configState.config["debug"] else "")
content = content.replace(
"{{simulate}}",
"checked" if configState.config["simulateSenseHat"] else "")
content = content.replace(
"{{showIp}}",
"checked" if configState.config["showIp"] else "")
self.wfile.write(bytes(content, "utf-8"))
elif self.path.upper() == "/STATS":
self.set_headers(200, "text/html; charset=utf-8")
content = open("../content/stats.html").read()
# replace {{blah-blah-blah}} with values
content = content.replace("{{deviceName}}", deviceState.getName())
content = content.replace("{{firmware}}",
deviceState.getFirmwareVersion())
content = content.replace("{{deviceState}}",
deviceState.getDeviceState())
if deviceState.getDeviceState() == "NORMAL":
color = "green"
elif deviceState.getDeviceState() == "CAUTION":
color = "yellow"
elif deviceState.getDeviceState() == "DANGER":
color = "red"
elif deviceState.getDeviceState() == "EXTREME_DANGER":
color = "blue"
content = content.replace("{{deviceStateColor}}", color)
content = content.replace("{{sent}}",
str(deviceState.getSentCount()))
content = content.replace("{{errors}}",
str(deviceState.getErrorCount()))
content = content.replace("{{desired}}",
str(deviceState.getDesiredCount()))
content = content.replace("{{reported}}",
str(deviceState.getReportedCount()))
content = content.replace("{{direct}}",
str(deviceState.getDirectCount()))
content = content.replace("{{c2d}}",
str(deviceState.getC2dCount()))
content = content.replace("{{timestamp}}",
str(deviceState.getLastSend()))
content = content.replace("{{payload}}",
deviceState.getLastPayload())
content = content.replace("{{twin}}", deviceState.getLastTwin())
content = content.replace(
"{{interval}}",
str(configState.config["telemetryInterval"] * 1000))
self.wfile.write(bytes(content, "utf-8"))
elif self.path.upper() == "/STYLE.CSS":
self.set_headers(200, "text/css")
content = open("../content/style.css").read()
self.wfile.write(bytes(content, "utf-8"))
else:
self.set_headers(404, "text/html; charset=utf-8")