def mainfunction():
"""
mainfunction
分別與IBM MQ及Rabbit MQ建立連線通道，進行從IBM MQ Server取得BPM資料，將取得的原始內文，直接publish傳送到Rabbit MQ 的BPM序列中。
除此之外，導入連線例外狀況的容錯處理，重複使用已建立的連線通道，降低建立連線通道成本。
主系統程式架構，由兩大迴圈組成，外層迴圈管控與Server的連線，內層迴圈管控BPM資料取得及傳送。利用FailToSleepSec及DisconnectSec參數，設定連線處理的等待時間。
FailToSleepSec: 設定程式例外處理的休眠時間，包括”NO_MSG”的處理。
DisconnectSec: 設定程式與IBM MQ Server離線後，重新連線的隔間等待時間。
"""
# === Local ===
FailToSleepSec = int(os.getenv('FailToSleepSec'))
DisconnectSec = int(os.getenv('DisconnectSec'))
# # RabbitMQ Variables
user = os.getenv('RABBITMQ_USER')
password = os.getenv('RABBITMQ_PASSWORD')
host = os.getenv('RABBITMQ_HOST')
port = os.getenv('RABBITMQ_PORT')
vhost = os.getenv('RABBITMQ_VHOST')
exchange = os.getenv('RABBITMQ_BPMEXCHANGE')
routing_key = os.getenv('RABBITMQ_ROUTING_KEY')
queue = os.getenv('RABBITMQ_QUEUENAME')
#user = "******"
#password = "******"
#host = "172.20.0.220"
#port = 5671
#vhost = "isnr"
#exchange ="bpm"
#routing_key = 'bpm_rk'
qm = QueueManager(user, password, host, port, vhost, True)
# initial queues
qm.declare_queue_binding(exchange, queue, routing_key)
# # IBMMQ Variables
queue_manager = os.getenv('IBMQUEUE_MANAGER')
channel = os.getenv("IBMCHANNEL")
host = os.getenv("IBMHOST")
port = os.getenv("IBMPORT")
queue_name = os.getenv("IBMQUEUE_NAME")
user = os.getenv('IBMUSER')
password = os.getenv('IBMPASSWORD')
#queue_manager = "TIABPM"
#channel = "TAISNR.SVRCONN"
#host = "10.2.67.76"
#port = "1414"
#queue_name = "TAISNR.LOCAL.QUEUE"
#user = '******'
#password = '******'
conn_info = "%s(%s)" % (host, port)
ibmmqi = IBMMQClientManager(queue_manager, channel, host, port, queue_name,
conn_info)
keep_connect = True
msg = ""
connectmsg = ""
exceptioncount = 0
getmessagecount = 0
connectcount = 0
while keep_connect:
try:
ibmmqi.connect(user, password)
keep_connect = False
connectcount = connectcount + 1
msg = connectmsg = "Connect success !! connectcount:" + str(
connectcount)
DebugLog(msg, connectmsg, 'MqConnectSucces', '0')
except Exception as pymqierror:
keep_connect = True
msg = connectmsg = "Connect fail !! connectcount:" + str(
connectcount) + str(pymqierror)
DebugLog(msg, connectmsg, 'MqConnectFail', '0')
time.sleep(1)
if keep_connect == False:
#Connecting in client mode
ibmmqi.Queue()
keep_running = True
count = 1
while keep_running:
msg = connectmsg = " keep_running is true!! "
try:
#How to get the message off a queue
msg_body = ibmmqi.getmessage()
msg = "Success!! " + msg_body
getmessagecount = getmessagecount + 1
connectmsg = "IBMMQ getmessage success!! getmessagecount:" + str(
getmessagecount)
DebugLog(msg, connectmsg, 'GetMesFormIbmMQ', '1')
try:
if (qm.is_connected()) == False:
qm.connect()
qm.publish(exchange, routing_key, msg_body)
connectmsg = "RabbitMQ publisher success!! getmessagecount:" + str(
getmessagecount)
DebugLog(msg, connectmsg, 'BpmToRabbbitMQ', '0')
except Exception as RabbitMQerror:
qm.connect()
msg = connectmsg = ":" + str(
count) + "RabbitMQerror Exception !! " + str(
RabbitMQerror)
DebugLog(msg, connectmsg, 'RabbitMqError', '0')
keep_running = True
keep_connect = False
count = 1
except Exception as pymqierror:
exceptioncount = exceptioncount + 1
connectmsg = ":" + str(
count) + " Exception !! exceptioncount:" + str(
exceptioncount) + "-" + str(pymqierror)
if count > 9:
keep_running = False
keep_connect = True
else:
keep_running = True
keep_connect = False
count = count + 1
DebugLog(msg, connectmsg, 'IbmMQException', '0')
time.sleep(FailToSleepSec)
#time.sleep(2)
if keep_running == False:
keep_connect = True
try:
msg = connectmsg = "ibmmqi.close()!! "
ibmmqi.close()
except Exception as pymqicloseerr:
msg = connectmsg = "ibmmqi.close():Exception !! " + str(
pymqicloseerr)
DebugLog(msg, connectmsg, 'IbmMqClose', '0')
time.sleep(1)
keep_connect = True
try:
ibmmqi.disconnect()
msg = connectmsg = "ibmmqi.disconnect! getmessagecount:" + str(
getmessagecount)
except Exception as pymqidisconerr:
msg = connectmsg = "ibmmqi.disconnect:Exception !! " + str(
pymqidisconerr)
DebugLog(msg, connectmsg, 'IbmMqDisconnect', '0')
time.sleep(DisconnectSec)
