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#!/usr/bin/env python
#Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import sys, glob, threading
import getopt, socket
import logging
#sys.path.append('gen-py')
#sys.path.insert(0, glob.glob('./lib/py/build/lib.*')[0])
sys.path.insert(0, glob.glob('./lib')[0])
from dominoRPC import Communication
from dominoRPC.ttypes import *
from dominoRPC.constants import *
from dominoCLI import DominoClientCLI
from dominoCLI.ttypes import *
from dominoCLI.constants import *
from thrift import Thrift
from thrift.transport import TSocket
from thrift.transport import TTransport
from thrift.protocol import TBinaryProtocol
from thrift.server import TServer
from util import *
#Load configuration parameters
from domino_conf import *
class CommunicationHandler:
def __init__(self):
self.log = {}
def __init__(self, dominoclient):
self.log = {}
self.dominoClient = dominoclient
try:
# Make socket
transport = TSocket.TSocket(DOMINO_SERVER_IP, DOMINO_SERVER_PORT)
transport.setTimeout(THRIFT_RPC_TIMEOUT_MS)
# Add buffering to compensate for slow raw sockets
self.transport = TTransport.TBufferedTransport(transport)
# Wrap in a protocol
self.protocol = TBinaryProtocol.TBinaryProtocol(self.transport)
# Create a client to use the protocol encoder
self.sender = Communication.Client(self.protocol)
except Thrift.TException, tx:
logging.error('%s' , tx.message)
# Template Push from Domino Server is received
# Actions:
# - Depending on Controller Domain, call API
# - Respond Back with Push Response
def d_push(self, push_msg):
logging.info('%d Received Template File', self.dominoClient.UDID)
# Retrieve the template file
## End of retrieval
# Any inspection code goes here
## End of inspection
# Call NB API
# If heat client, call heat command
# If ONOS client, run as shell script
## End of NB API call
# Marshall the response message for the Domino Server Fill
push_r = PushResponseMessage()
# Fill response message fields
push_r.domino_udid = self.dominoClient.UDID
push_r.seq_no = self.dominoClient.seqno
push_r.responseCode = SUCCESS
## End of filling
self.dominoClient.seqno = self.dominoClient.seqno + 1
return push_r
def openconnection(self):
self.transport.open()
def closeconnection():
self.transport.close()
class CLIHandler:
def __init__(self):
self.log = {}
def __init__(self, dominoclient, CLIservice):
self.log = {}
self.dominoClient = dominoclient
self.CLIservice = CLIservice
def d_CLI(self, msg):
logging.info('Received CLI %s', msg.CLI_input)
self.CLIservice.process_input(msg.CLI_input)
CLIrespmsg = CLIResponse()
CLIrespmsg.CLI_response = "Testing..."
return CLIrespmsg
def read_templatefile(temp_filename):
f = open(temp_filename, 'r')
lines = f.read().splitlines()
return lines
class DominoClientCLIService(threading.Thread):
def __init__(self, dominoclient, communicationhandler, interactive):
threading.Thread.__init__(self)
self.dominoclient = dominoclient
self.communicationhandler = communicationhandler
self.interactive = interactive
def process_input(self, args):
try:
if args[0] == 'heartbeat':
self.dominoclient.heartbeat()
elif args[0] == 'publish':
opts, args = getopt.getopt(args[1:],"t:",["tosca-file="])
if len(opts) == 0:
print '\nUsage: publish -t <toscafile>'
return
for opt, arg in opts:
if opt in ('-t', '--tosca-file'):
toscafile = arg
self.dominoclient.publish(toscafile)
elif args[0] == 'subscribe':
labels = []
templateTypes = []
labelop = APPEND
templateop = APPEND
opts, args = getopt.getopt(args[1:],"l:t:",["labels=","ttype=","lop=","top="])
for opt, arg in opts:
if opt in ('-l', '--labels'):
labels = labels + arg.split(',')
elif opt in ('-t', '--ttype'):
templateTypes = templateTypes + arg.split(',')
elif opt in ('--lop'):
try:
labelop = str2enum[arg.upper()]
except KeyError as ex:
print '\nInvalid label option, pick one of: APPEND, OVERWRITE, DELETE'
return
elif opt in ('--top'):
try:
templateop = str2enum[arg.upper()]
except KeyError as ex:
print '\nInvalid label option, pick one of: APPEND, OVERWRITE, DELETE'
return
#check if labels or supported templates are nonempty
if labels != [] or templateTypes != []:
self.dominoclient.subscribe(labels, templateTypes, labelop, templateop)
elif args[0] == 'register':
self.dominoclient.start()
except getopt.GetoptError:
print 'Command is misentered or not supported!'
def run(self):
global DEFAULT_TOSCA_PUBFILE
if self.interactive == "TRUE":
flag = True
else:
flag = False
if flag: #interactive CLI, loop in while until killed
while True:
sys.stdout.write('>>')
input_string = raw_input()
args = input_string.split()
if len(args) == 0:
continue
sys.stdout.write('>>')
#process input arguments
self.process_input(args)
else: #domino cli-client is used, listen for the CLI rpc calls
cliHandler = CLIHandler(self.dominoclient, self)
processor = DominoClientCLI.Processor(cliHandler)
transport = TSocket.TServerSocket(port=self.dominoclient.CLIport)
tfactory = TTransport.TBufferedTransportFactory()
pfactory = TBinaryProtocol.TBinaryProtocolFactory()
#Use TThreadedServer or TThreadPoolServer for a multithreaded server
CLIServer = TServer.TSimpleServer(processor, transport, tfactory, pfactory)
logging.debug('RPC service for CLI is starting...')
CLIServer.serve()
class DominoClient:
def __init__(self):
self.communicationHandler = CommunicationHandler(self)
self.processor = None
self.transport = None
self.tfactory = None
self.pfactory = None
self.communicationServer = None
self.CLIservice = None
self.serviceport = 9091
self.dominoserver_IP = 'localhost'
self.CLIport = DOMINO_CLI_PORT
#Start from UNREGISTERED STATE
#TO BE DONE: initialize from a saved state
self.state = 'UNREGISTERED'
self.seqno = 0
self.UDID = 1
def start_communicationService(self):
self.processor = Communication.Processor(self.communicationHandler)
self.transport = TSocket.TServerSocket(port=int(self.serviceport))
self.tfactory = TTransport.TBufferedTransportFactory()
self.pfactory = TBinaryProtocol.TBinaryProtocolFactory()
#Use TThreadedServer or TThreadPoolServer for a multithreaded server
#self.communicationServer = TServer.TThreadedServer(self.processor, self.transport, self.tfactory, self.pfactory)
self.communicationServer = TServer.TThreadPoolServer(self.processor, self.transport, self.tfactory, self.pfactory)
self.communicationServer.serve()
def start(self):
try:
self.communicationHandler.openconnection()
self.register()
except Thrift.TException, tx:
print '%s' % (tx.message)
def register(self):
if self.state == 'UNREGISTERED':
logging.info('%d Sending Registration', self.UDID)
#prepare registration message
reg_msg = RegisterMessage()
reg_msg.domino_udid_desired = UDID_DESIRED
reg_msg.seq_no = self.seqno
reg_msg.ipaddr = netutil.get_ip()
reg_msg.tcpport = self.serviceport
reg_msg.supported_templates = LIST_SUPPORTED_TEMPLATES
try:
reg_msg_r = self.sender().d_register(reg_msg)
logging.info('Registration Response: Response Code: %d' , reg_msg_r.responseCode)
if reg_msg_r.comments:
logging.debug('Response Comments: %s' , reg_msg_r.comments)
if reg_msg_r.responseCode == SUCCESS:
self.state = 'REGISTERED'
self.UDID = reg_msg_r.domino_udid_assigned
else:
#Handle registration failure here (possibly based on reponse comments)
pass
except (Thrift.TException, TSocket.TTransportException) as tx:
logging.error('%s' , tx.message)
except (socket.timeout) as tx:
self.dominoclient.handle_RPC_timeout(pub_msg)
except (socket.error) as tx:
logging.error('%s' , tx.message)
self.seqno = self.seqno + 1
def heartbeat(self):
if self.state == 'UNREGISTERED':
self.start()
logging.info('%d Sending heartbeat', self.UDID)
hbm = HeartBeatMessage()
hbm.domino_udid = self.UDID
hbm.seq_no = self.seqno
try:
hbm_r = self.sender().d_heartbeat(hbm)
logging.info('heart beat received from: %d ,sequence number: %d' , hbm_r.domino_udid, hbm_r.seq_no)
except (Thrift.TException, TSocket.TTransportException) as tx:
logging.error('%s' , tx.message)
except (socket.timeout) as tx:
self.handle_RPC_timeout(hbm)
except:
logging.error('Unexpected error: %s', sys.exc_info()[0])
self.seqno = self.seqno + 1
def publish(self, toscafile):
if self.state == 'UNREGISTERED':
self.start()
logging.info('Publishing the template file: ' + toscafile)
pub_msg = PublishMessage()
pub_msg.domino_udid = self.UDID
pub_msg.seq_no = self.seqno
pub_msg.template_type = 'tosca-nfv-v1.0'
try:
pub_msg.template = read_templatefile(toscafile)
except IOError as e:
logging.error('I/O error(%d): %s' , e.errno, e.strerror)
return
try:
pub_msg_r = self.sender().d_publish(pub_msg)
logging.info('Publish Response is received from: %d ,sequence number: %d', pub_msg_r.domino_udid, pub_msg_r.seq_no)
except (Thrift.TException, TSocket.TTransportException) as tx:
print '%s' % (tx.message)
except (socket.timeout) as tx:
self.handle_RPC_timeout(pub_msg)
self.seqno = self.seqno + 1
def subscribe(self, labels, templateTypes, label_op, template_op):
if self.state == 'UNREGISTERED':
self.start()
logging.info('subscribing labels %s and templates %s', labels, templateTypes)
#send subscription message
sub_msg = SubscribeMessage()
sub_msg.domino_udid = self.UDID
sub_msg.seq_no = self.seqno
sub_msg.template_op = template_op
sub_msg.supported_template_types = templateTypes
sub_msg.label_op = label_op
sub_msg.labels = labels
try:
sub_msg_r = self.sender().d_subscribe(sub_msg)
logging.info('Subscribe Response is received from: %d ,sequence number: %d', sub_msg_r.domino_udid,sub_msg_r.seq_no)
except (Thrift.TException, TSocket.TTransportException) as tx:
logging.error('%s' , tx.message)
except (socket.timeout) as tx:
self.handle_RPC_timeout(sub_msg)
self.seqno = self.seqno + 1
def stop(self):
try:
self.communicationHandler.closeconnection()
except Thrift.TException, tx:
logging.error('%s' , tx.message)
def sender(self):
return self.communicationHandler.sender
def startCLI(self, interactive):
self.CLIservice = DominoClientCLIService(self, self.communicationHandler, interactive)
logging.info('CLI Service is starting')
self.CLIservice.start()
#to wait until CLI service is finished
#self.CLIservice.join()
def set_serviceport(self, port):
self.serviceport = port
def set_CLIport(self, cliport):
self.CLIport = cliport
def set_dominoserver_ipaddr(self, ipaddr):
self.dominoserver_IP = ipaddr
def handle_RPC_timeout(self, RPCmessage):
# TBD: handle each RPC timeout separately
if RPCmessage.messageType == HEART_BEAT:
logging.debug('RPC Timeout for message type: HEART_BEAT')
elif RPCmessage.messageType == PUBLISH:
logging.debug('RPC Timeout for message type: PUBLISH')
elif RPCmessage.messageType == SUBSCRIBE:
logging.debug('RPC Timeout for message type: SUBSCRIBE')
elif RPCmessage.messageType == REGISTER:
logging.debug('RPC Timeout for message type: REGISTER')
elif RPCmessage.messageType == QUERY:
logging.debug('RPC Timeout for message type: QUERY')
def main(argv):
client = DominoClient()
loglevel = 'WARNING'
interactive = "FALSE"
#process input arguments
try:
opts, args = getopt.getopt(argv,"hc:p:i:l:",["conf=","port=","ipaddr=","log=","iac=","cliport="])
except getopt.GetoptError:
print 'DominoClient.py -c/--conf <configfile> -p/--port <socketport> -i/--ipaddr <IPaddr> -l/--log <loglevel> --iac=true/false'
sys.exit(2)
for opt, arg in opts:
if opt == '-h':
print 'DominoClient.py -c/--conf <configfile> -p/--port <socketport> -i/--ipaddr <IPaddr> -l/--log <loglevel> --iac=true/false'
sys.exit()
elif opt in ("-c", "--conf"):
configfile = arg
elif opt in ("-p", "--port"):
client.set_serviceport(int(arg))
elif opt in ("-i", "--ipaddr"):
client.set_dominoserver_ipaddr(arg)
elif opt in ("-l", "--log"):
loglevel = arg
elif opt in ("--iac"):
interactive = arg.upper()
elif opt in ("--cliport"):
client.set_CLIport(int(arg))
#Set logging level
numeric_level = getattr(logging, loglevel.upper(), None)
try:
if not isinstance(numeric_level, int):
raise ValueError('Invalid log level: %s' % loglevel)
logging.basicConfig(filename=logfile,level=numeric_level, format='%(asctime)s %(message)s', datefmt='%m/%d/%Y %I:%M:%S %p')
except ValueError, ex:
print ex.message
exit()
#The client is starting
logging.debug('Domino Client Starting...')
client.start()
client.startCLI(interactive)
client.start_communicationService()
if __name__ == "__main__":
main(sys.argv[1:])
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