def __init__(self, message):
result = COMMAND_RE.match(message.topic)
if result:
Message.__init__(self, message)
self.command = result.group(1)
self.format = result.group(2)
else:
raise InvalidEventException("Received command on invalid topic: %s" % (message.topic))
def decode(message):
try:
payload = json.loads(message.payload.decode("utf-8"))
except ValueError as e:
raise InvalidEventException("Unable to parse JSON. payload=\"%s\" error=%s" % (message.payload, str(e)))
data = None
timestamp = None
# Try to parse a timestamp
try:
if 'ts' in payload:
dt = iso8601.parse_date(payload['ts'])
timestamp = dt.astimezone(pytz.timezone('UTC'))
else:
timestamp = datetime.now(pytz.timezone('UTC'))
except iso8601.ParseError as e:
raise InvalidEventException("Unable to parse event timestamp: %s" % str(e))
# Try to parse the data
if 'd' in payload:
data = payload['d']
# TODO: Flatten JSON, covert into array of key/value pairs
return Message(data, timestamp)
def decode(message):
try:
jsonData = json.dumps(xmltodict.parse(message.payload))
data = json.loads(jsonData.decode("utf-8"))
except ValueError as e:
raise InvalidEventException("Unable to parse XML. payload=\"%s\" error=%s" % (message.payload, str(e)))
timestamp = datetime.now(pytz.timezone('UTC'))
return Message(data, timestamp)
def decode(message):
(hello, x) = message.payload.split(",")
data = {}
data['hello'] = hello
data['x'] = x
timestamp = datetime.now(pytz.timezone('UTC'))
return Message(data, timestamp)
def decode(message):
try:
data = json.loads(message.payload.decode("utf-8"))
except ValueError as e:
raise InvalidEventException("Unable to parse JSON. payload=\"%s\" error=%s" % (message.payload, str(e)))
timestamp = datetime.now(pytz.timezone('UTC'))
# TODO: Flatten JSON, covert into array of key/value pairs
return Message(data, timestamp)
def decode(message):
'''
message.payloadに格納された受信データをbase64にエンコードした文字列として
Messageオブジェクトへ格納、返却する。
引数
message 受信データ
戻り値
ibmiotfパッケージとして取扱可能なMessageオブジェクト
'''
data = message.payload
if type(data) is bytes:
logger.debug('decode: data is bytes')
data = base64.b64encode(message.payload).decode('utf-8')
timestamp = datetime.now(pytz.timezone('UTC'))
return Message(data, timestamp)
def decode(message):
"""
Convert a generic JSON message
* The entire message is converted to JSON and treated as the message data
* The timestamp of the message is the time that the message is RECEIVED
"""
try:
data = json.loads(message.payload.decode("utf-8"))
except ValueError as e:
raise InvalidEventException(
"Unable to parse JSON. payload=\"%s\" error=%s" %
(message.payload, str(e)))
timestamp = datetime.now(pytz.timezone('UTC'))
# TODO: Flatten JSON, covert into array of key/value pairs
return Message(data, timestamp)
def decode(message):
"""
文字列をnp.ndarray型式に戻し型を(120, 160, 3)に戻す。
引数
message 受信メッセージ
戻り値
Messageオブジェクト
"""
#try:
# data = message.payload.decode('utf-8')
# data = np.fromstring(data, dtype=np.uint8)
# data = np.reshape(data, (120, 160, 3))
#except ValueError as e:
# raise InvalidEventException("Unable to parse image. payload=\"%s\" error=%s" % (message.payload, str(e)))
timestamp = datetime.now(pytz.timezone('UTC'))
# TODO: Flatten JSON, covert into array of key/value pairs
return Message(message, timestamp)