def on_message(client, userdata, msg):
print("Message arrived: " + msg.topic)
tokens = msg.topic.split("/")
if tokens[0] == "spAv1.0" and tokens[1] == myGroupId and tokens[2] == "DCMD" and tokens[3] == myNodeName:
inboundPayload = kurapayload_pb2.KuraPayload()
inboundPayload.ParseFromString(msg.payload)
outboundPayload = kurapayload_pb2.KuraPayload()
outboundPayload.timestamp = int(round(time.time() * 1000))
addMetric(outboundPayload, "seq", "INT32", getSeqNum())
for metric in inboundPayload.metric:
print "Tag Name: " + metric.name
if metric.name == "Outputs/e":
pibrella.output.e.write(metric.bool_value)
addMetric(outboundPayload, "Outputs/e", "BOOL", pibrella.output.e.read())
elif metric.name == "Outputs/f":
pibrella.output.f.write(metric.bool_value)
addMetric(outboundPayload, "Outputs/f", "BOOL", pibrella.output.f.read())
elif metric.name == "Outputs/g":
pibrella.output.g.write(metric.bool_value)
addMetric(outboundPayload, "Outputs/g", "BOOL", pibrella.output.g.read())
elif metric.name == "Outputs/h":
pibrella.output.h.write(metric.bool_value)
addMetric(outboundPayload, "Outputs/h", "BOOL", pibrella.output.h.read())
elif metric.name == "Outputs/LEDs/green":
if metric.bool_value:
pibrella.light.green.on()
else:
pibrella.light.green.off()
addMetric(outboundPayload, "Outputs/LEDs/green", "BOOL", pibrella.light.green.read())
elif metric.name == "Outputs/LEDs/red":
if metric.bool_value:
pibrella.light.red.on()
else:
pibrella.light.red.off()
addMetric(outboundPayload, "Outputs/LEDs/red", "BOOL", pibrella.light.red.read())
elif metric.name == "Outputs/LEDs/yellow":
if metric.bool_value:
pibrella.light.yellow.on()
else:
pibrella.light.yellow.off()
addMetric(outboundPayload, "Outputs/LEDs/yellow", "BOOL", pibrella.light.yellow.read())
elif metric.name == "buzzer_fail":
pibrella.buzzer.fail()
elif metric.name == "buzzer_success":
pibrella.buzzer.success()
byteArray = bytearray(outboundPayload.SerializeToString())
client.publish("spAv1.0/" + myGroupId + "/DDATA/" + myNodeName + "/" + mySubNodeName, byteArray, 0, False)
elif tokens[0] == "spAv1.0" and tokens[1] == myGroupId and tokens[2] == "NCMD" and tokens[3] == myNodeName:
inboundPayload = kurapayload_pb2.KuraPayload()
inboundPayload.ParseFromString(msg.payload)
for metric in inboundPayload.metric:
if metric.name == "Rebirth":
publishBirth()
print "done publishing"
def publishBirth():
# Create the node birth payload with a position
payload = kurapayload_pb2.KuraPayload()
position = payload.position
position.altitude = 319
position.heading = 0
position.latitude = 38.83667239
position.longitude = -94.67176706
position.precision = 2.0
position.satellites = 8
position.speed = 0
position.status = 3
position.timestamp = int(round(time.time() * 1000))
# Add a timestamp and sequence numbers to the payload
seq = 0
payload.timestamp = int(round(time.time() * 1000))
addMetric(payload, "bdSeq", "INT32", bdSeq)
addMetric(payload, "seq", "INT32", getSeqNum())
# Publish the node birth certificate
byteArray = bytearray(payload.SerializeToString())
client.publish("spAv1.0/" + myGroupId + "/NBIRTH/" + myNodeName, byteArray, 0, False)
# Set up the input metrics
payload = kurapayload_pb2.KuraPayload()
payload.timestamp = int(round(time.time() * 1000))
addMetric(payload, "seq", "INT32", getSeqNum())
addMetric(payload, "Inputs/a", "BOOL", pibrella.input.a.read())
addMetric(payload, "Inputs/b", "BOOL", pibrella.input.b.read())
addMetric(payload, "Inputs/c", "BOOL", pibrella.input.c.read())
addMetric(payload, "Inputs/d", "BOOL", pibrella.input.d.read())
# Set up the output states on first run so Ignition and MQTT Engine are aware of them
addMetric(payload, "Outputs/e", "BOOL", pibrella.output.e.read())
addMetric(payload, "Outputs/f", "BOOL", pibrella.output.f.read())
addMetric(payload, "Outputs/g", "BOOL", pibrella.output.g.read())
addMetric(payload, "Outputs/h", "BOOL", pibrella.output.h.read())
addMetric(payload, "Outputs/LEDs/green", "BOOL", pibrella.light.green.read())
addMetric(payload, "Outputs/LEDs/red", "BOOL", pibrella.light.red.read())
addMetric(payload, "Outputs/LEDs/yellow", "BOOL", pibrella.light.yellow.read())
addMetric(payload, "button", "BOOL", pibrella.button.read())
addMetric(payload, "buzzer_fail", "BOOL", 0)
addMetric(payload, "buzzer_success", "BOOL", 0)
# Set up the propertites payload
addMetric(payload, "Parameters/device_hw_version", "STRING", "PFC_1.1")
addMetric(payload, "Parameters/firmware_version", "STRING", "1.4.2")
# Publish the initial data with the Device BIRTH certificate
totalByteArray = bytearray(payload.SerializeToString())
client.publish("spAv1.0/" + myGroupId + "/DBIRTH/" + myNodeName + "/" + mySubNodeName, totalByteArray, 0, False)
def publishBirth():
# Create the node birth payload with a position
payload = kurapayload_pb2.KuraPayload()
position = payload.position
position.altitude = 319
position.heading = 0
position.latitude = 38.83667239
position.longitude = -94.67176706
position.precision = 2.0
position.satellites = 8
position.speed = 0
position.status = 3
position.timestamp = int(round(time.time() * 1000))
# Add a timestamp and sequence numbers to the payload
seqNum = 0
payload.timestamp = int(round(time.time() * 1000))
addMetric(payload, "bdSeq", "INT32", bdSeq)
addMetric(payload, "seq", "INT32", getSeqNum())
# Publish the node birth certificate
byteArray = bytearray(payload.SerializeToString())
client.publish("spAv1.0/" + myGroupId + "/NBIRTH/" + myNodeName, byteArray,
0, False)
# Setup the inputs
payload = kurapayload_pb2.KuraPayload()
payload.timestamp = int(round(time.time() * 1000))
addMetric(payload, "seq", "INT32", getSeqNum())
addMetric(payload, "my_boolean", "BOOL", random.choice([True, False]))
addMetric(payload, "my_float", "FLOAT", random.random())
addMetric(payload, "my_int", "INT32", random.randint(0, 100))
addMetric(payload, "my_long", "INT64", random.getrandbits(60))
addMetric(payload, "Inputs/0", "BOOL", True)
addMetric(payload, "Inputs/1", "INT32", 0)
addMetric(payload, "Inputs/2", "FLOAT", 1.23)
# Set up the output states on first run so Ignition and MQTT Engine are aware of them
addMetric(payload, "Outputs/0", "BOOL", True)
addMetric(payload, "Outputs/1", "INT32", 0)
addMetric(payload, "Outputs/2", "FLOAT", 1.23)
# Set up the propertites
addMetric(payload, "Properties/Hardware Version", "STRING", "PFC_1.1")
addMetric(payload, "Properties/Firmware Version", "STRING", "1.4.2")
# Publish the initial data with the Device BIRTH certificate
totalByteArray = bytearray(payload.SerializeToString())
client.publish(
"spAv1.0/" + myGroupId + "/DBIRTH/" + myNodeName + "/" + mySubNodeName,
totalByteArray, 0, False)
def input_changed(name, pin):
outboundPayload = kurapayload_pb2.KuraPayload()
outboundPayload.timestamp = int(round(time.time() * 1000))
addMetric(outboundPayload, "seq", "INT32", getSeqNum())
addMetric(outboundPayload, name, "BOOL", pin.read());
byteArray = bytearray(outboundPayload.SerializeToString())
client.publish("spAv1.0/" + myGroupId + "/DDATA/" + myNodeName + "/" + mySubNodeName, byteArray, 0, False)
def on_message(client, userdata, msg):
print("Message arrived: " + msg.topic)
tokens = msg.topic.split("/")
if tokens[0] == "spAv1.0" and tokens[1] == myGroupId and tokens[
2] == "DCMD" and tokens[3] == myNodeName:
inboundPayload = kurapayload_pb2.KuraPayload()
inboundPayload.ParseFromString(msg.payload)
outboundPayload = kurapayload_pb2.KuraPayload()
outboundPayload.timestamp = int(round(time.time() * 1000))
addMetric(outboundPayload, "seq", "INT32", getSeqNum())
for metric in inboundPayload.metric:
if metric.name == "Outputs/0":
print "Outputs/0: " + str(metric.bool_value)
addMetric(outboundPayload, "Inputs/0", "BOOL",
metric.bool_value)
addMetric(outboundPayload, "Outputs/0", "BOOL",
metric.bool_value)
elif metric.name == "Outputs/1":
print "Outputs/1: " + str(metric.int_value)
addMetric(outboundPayload, "Inputs/1", "INT32",
metric.int_value)
addMetric(outboundPayload, "Outputs/1", "INT32",
metric.int_value)
elif metric.name == "Outputs/2":
print "Outputs/2: " + str(metric.float_value)
addMetric(outboundPayload, "Inputs/2", "FLOAT",
metric.float_value)
addMetric(outboundPayload, "Outputs/2", "FLOAT",
metric.float_value)
byteArray = bytearray(outboundPayload.SerializeToString())
client.publish(
"spAv1.0/" + myGroupId + "/DDATA/" + myNodeName + "/" +
mySubNodeName, byteArray, 0, False)
elif tokens[0] == "spAv1.0" and tokens[1] == myGroupId and tokens[
2] == "NCMD" and tokens[3] == myNodeName:
inboundPayload = kurapayload_pb2.KuraPayload()
inboundPayload.ParseFromString(msg.payload)
for metric in inboundPayload.metric:
if metric.name == "Rebirth":
publishBirth()
print "done publishing"
def create_payload(metrics):
payload = kura_payload.KuraPayload()
for key, value in metrics.items():
m = kura_payload.KuraPayload.KuraMetric()
m.name = key
m.type = m.STRING
m.string_value = value
payload.metric.extend([m])
return payload.SerializeToString()
def button_changed(pin):
outboundPayload = kurapayload_pb2.KuraPayload()
if pin.read() == 1:
print("You pressed the button!")
else:
print("You released the button!")
outboundPayload.timestamp = int(round(time.time() * 1000))
addMetric(outboundPayload, "seq", "INT32", getSeqNum())
addMetric(outboundPayload, "button", "BOOL", pin.read());
byteArray = bytearray(outboundPayload.SerializeToString())
client.publish("spAv1.0/" + myGroupId + "/DDATA/" + myNodeName + "/" + mySubNodeName, byteArray, 0, False)
def send_message(args, subtopic, json_payload):
topic = '$EDC/diec1/' + args.client_id + '/MQTT/' + subtopic
pb = json_format.Parse(json.dumps(json_payload),
kurapayload_pb2.KuraPayload(),
ignore_unknown_fields=False)
publish.single(topic,
payload=pb.SerializeToString(),
qos=0,
retain=False,
hostname=args.hostname,
port=args.port,
keepalive=60,
will=None,
auth={
'username': username,
'password': password
},
tls=None,
protocol=mqtt.MQTTv311,
transport='tcp')
# Set up the propertites
addMetric(payload, "Properties/Hardware Version", "STRING", "PFC_1.1")
addMetric(payload, "Properties/Firmware Version", "STRING", "1.4.2")
# Publish the initial data with the Device BIRTH certificate
totalByteArray = bytearray(payload.SerializeToString())
client.publish(
"spAv1.0/" + myGroupId + "/DBIRTH/" + myNodeName + "/" + mySubNodeName,
totalByteArray, 0, False)
######################################################################
# Create the DEATH payload
deathPayload = kurapayload_pb2.KuraPayload()
deathPayload.timestamp = int(round(time.time() * 1000))
addMetric(deathPayload, "bdSeq", "INT32", getBdSeqNum())
deathByteArray = bytearray(deathPayload.SerializeToString())
# Start of main program - Set up the MQTT client connection
client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message
client.username_pw_set(myUsername, myPassword)
client.will_set("spAv1.0/" + myGroupId + "/NDEATH/" + myNodeName,
deathByteArray, 0, False)
client.connect(serverUrl, 1883, 60)
publishBirth()
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import google.protobuf
import kurapayload_pb2 as kura_payload
import logging
import zlib
logger = logging.getLogger(__name__)
payload_decoder = kura_payload.KuraPayload()
def decode_message(message):
ungziped = decode_gzip(message)
unprotobuffed = decode_protobuf(ungziped)
return unprotobuffed
def decode_gzip(message):
try:
message = zlib.decompress(message, 16 + zlib.MAX_WBITS)
except zlib.error:
logger.debug("Message is not gzip encoded")
return message
def decode_protobuf(message):
try:
payload_decoder.ParseFromString(message)
return payload_decoder
