3 #Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
4 # Licensed under the Apache License, Version 2.0 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
14 import sys, os, glob, random, errno
18 #sys.path.append('gen-py')
19 #sys.path.insert(0, glob.glob('./lib/py/build/lib.*')[0])
20 sys.path.insert(0, glob.glob('./lib')[0])
23 from dominoRPC import Communication
24 from dominoRPC.ttypes import *
25 from dominoRPC.constants import *
27 from thrift import Thrift
28 from thrift.transport import TSocket
29 from thrift.transport import TTransport
30 from thrift.protocol import TBinaryProtocol
31 from thrift.server import TServer
33 from toscaparser.tosca_template import ToscaTemplate
34 #from toscaparser.utils.gettextutils import _
35 #import toscaparser.utils.urlutils
38 from partitioner import *
39 from util import miscutil
41 #Load configuration parameters
42 from domino_conf import *
45 class CommunicationHandler:
49 def __init__(self, dominoserver):
51 self.dominoServer = dominoserver
54 def openconnection(self, ipaddr, tcpport):
57 transport = TSocket.TSocket(ipaddr, tcpport)
58 transport.setTimeout(THRIFT_RPC_TIMEOUT_MS)
59 # Add buffering to compensate for slow raw sockets
60 self.transport = TTransport.TBufferedTransport(transport)
62 self.protocol = TBinaryProtocol.TBinaryProtocol(self.transport)
63 # Create a client to use the protocol encoder
64 self.sender = Communication.Client(self.protocol)
66 except Thrift.TException, tx:
67 logging.error('%s' , tx.message)
71 def closeconnection(self):
72 self.transport.close()
74 def push_template(self,template,ipaddr,tcpport):
75 self.openconnection(ipaddr,tcpport)
77 pushm.domino_udid = SERVER_UDID
78 pushm.seq_no = self.seqno
79 pushm.template_type = 'tosca-nfv-v1.0'
80 pushm.template = template
82 push_r = self.sender.d_push(pushm)
83 logging.info('Push Response received from %d' , push_r.domino_udid)
84 except (Thrift.TException, TSocket.TTransportException) as tx:
85 logging.error('%s' , tx.message)
86 except (socket.timeout) as tx:
87 self.dominoServer.handle_RPC_timeout(pushm)
89 logging.error('Unexpected error: %s', sys.exc_info()[0])
91 self.seqno = self.seqno + 1
93 self.closeconnection()
95 #Heartbeat from Domino Client is received
97 # - Respond Back with a heartbeat
99 def d_heartbeat(self, hb_msg):
101 logging.info('heartbeat received from %d' , hb_msg.domino_udid)
103 hb_r = HeartBeatMessage()
104 hb_r.domino_udid = SERVER_UDID
105 hb_r.seq_no = self.seqno
107 self.seqno = self.seqno + 1
111 #Registration from Domino Client is received
114 # - Respond Back with Registration Response
115 def d_register(self, reg_msg):
118 #Prepare and send Registration Response
119 reg_r = RegisterResponseMessage()
120 logging.info('Registration Request received for UDID %d from IP: %s port: %d', reg_msg.domino_udid_desired, reg_msg.ipaddr, reg_msg.tcpport)
123 reg_r.domino_udid_assigned = self.dominoServer.assign_udid(reg_msg.domino_udid_desired)
124 reg_r.seq_no = self.seqno
125 reg_r.domino_udid = SERVER_UDID
126 #return unconditional success
128 #Define conditions for unsuccessful registration (e.g., unsupported mapping)
129 reg_r.responseCode = SUCCESS
130 #no need to send comments
132 #Logic for a new UDID assignment
134 self.seqno = self.seqno + 1
136 #commit to the database
137 dbconn = sqlite3.connect(SERVER_DBFILE)
140 newrow = [(reg_r.domino_udid_assigned, reg_msg.ipaddr, reg_msg.tcpport, ','.join(reg_msg.supported_templates), reg_msg.seq_no),]
141 c.executemany('INSERT INTO clients VALUES (?,?,?,?,?)',newrow)
142 except sqlite3.OperationalError as ex:
143 logging.error('Could not add the new registration record into %s for Domino Client %d : %s', SERVER_DBFILE, reg_r.domino_udid_assigned, ex.message)
145 logging.error('Could not add the new registration record into %s for Domino Client %d', SERVER_DBFILE, reg_r.domino_udid_assigned)
146 logging.error('Unexpected error: %s', sys.exc_info()[0])
154 #Subscription from Domino Client is received
156 # - Save the templates & labels
157 # - Respond Back with Subscription Response
158 def d_subscribe(self, sub_msg):
159 global SERVER_UDID, SERVER_SEQNO
160 logging.info('Subscribe Request received from %d' , sub_msg.domino_udid)
162 if sub_msg.template_op == APPEND:
163 if self.dominoServer.subscribed_templateformats.has_key(sub_msg.domino_udid):
164 self.dominoServer.subscribed_templateformats[sub_msg.domino_udid].update(set(sub_msg.supported_template_types))
166 self.dominoServer.subscribed_templateformats[sub_msg.domino_udid] = set(sub_msg.supported_template_types)
167 elif sub_msg.template_op == OVERWRITE:
168 self.dominoServer.subscribed_templateformats[sub_msg.domino_udid] = set(sub_msg.supported_template_types)
169 elif sub_msg.template_op == DELETE:
170 self.dominoServer.subscribed_templateformats[sub_msg.domino_udid].difference_update(set(sub_msg.supported_template_types))
172 if sub_msg.labels != []:
173 if sub_msg.label_op == APPEND:
174 logging.debug('APPENDING Labels...')
175 if self.dominoServer.subscribed_labels.has_key(sub_msg.domino_udid):
176 self.dominoServer.subscribed_labels[sub_msg.domino_udid].update(set(sub_msg.labels))
178 self.dominoServer.subscribed_labels[sub_msg.domino_udid] = set(sub_msg.labels)
179 elif sub_msg.label_op == OVERWRITE:
180 logging.debug('OVERWRITING Labels...')
181 self.dominoServer.subscribed_labels[sub_msg.domino_udid] = set(sub_msg.labels)
182 elif sub_msg.label_op == DELETE:
183 logging.debug('DELETING Labels...')
184 self.dominoServer.subscribed_labels[sub_msg.domino_udid].difference_update(set(sub_msg.labels))
186 logging.debug('Supported Template: %s Supported Labels: %s' , self.dominoServer.subscribed_templateformats[sub_msg.domino_udid] , self.dominoServer.subscribed_labels[sub_msg.domino_udid])
188 #commit to the database
189 dbconn = sqlite3.connect(SERVER_DBFILE)
191 newlabelset = self.dominoServer.subscribed_labels[sub_msg.domino_udid]
193 c.execute("REPLACE INTO labels (udid, label_list) VALUES ({udid}, '{newvalue}')".\
194 format(udid=sub_msg.domino_udid, newvalue=','.join(list(newlabelset)) ))
195 except sqlite3.OperationalError as ex1:
196 logging.error('Could not add the new labels to %s for Domino Client %d : %s', SERVER_DBFILE, sub_msg.domino_udid, ex1.message)
198 logging.error('Could not add the new labels to %s for Domino Client %d', SERVER_DBFILE, sub_msg.domino_udid)
199 logging.error('Unexpected error: %s', sys.exc_info()[0])
206 sub_r = SubscribeResponseMessage()
207 sub_r.domino_udid = SERVER_UDID
208 sub_r.seq_no = self.seqno
209 sub_r.responseCode = SUCCESS
210 self.seqno = self.seqno + 1
214 #Template Publication from Domino Client is received
216 # - Parse the template, perform mapping, partition the template
217 # - Launch Push service
218 # - Respond Back with Publication Response
219 def d_publish(self, pub_msg):
220 global SERVER_UDID, SERVER_SEQNO, TOSCADIR, TOSCA_DEFAULT_FNAME
221 logging.info('Publish Request received from %d' , pub_msg.domino_udid)
222 logging.debug(pub_msg.template)
226 os.makedirs(TOSCADIR)
227 except OSError as exception:
228 if exception.errno == errno.EEXIST:
229 logging.debug('ERRNO %d; %s exists. Creating: %s', exception.errno, TOSCADIR, TOSCADIR+TOSCA_DEFAULT_FNAME)
231 logging.error('Error occurred in creating %s. Err no: %d', exception.errno)
233 #Risking a race condition if another process is attempting to write to same file
234 f = open(TOSCADIR+TOSCA_DEFAULT_FNAME, 'w')
235 for item in pub_msg.template:
239 # Load tosca object from file into memory
240 tosca = ToscaTemplate( TOSCADIR+TOSCA_DEFAULT_FNAME )
243 node_labels = label.extract_labels( tosca )
244 logging.debug('Node Labels: %s', node_labels)
246 # Map nodes in the template to resource domains
247 site_map = label.map_nodes( self.dominoServer.subscribed_labels , node_labels )
248 logging.debug('Site Maps: %s' , site_map)
250 # Select a site for each VNF
251 node_site = label.select_site( site_map )
252 logging.debug('Selected Sites: %s', node_site)
254 # Create per-domain Tosca files
255 file_paths = partitioner.partition_tosca('./toscafiles/template1.yaml',node_site,tosca.tpl)
257 # Create list of translated template files
261 # Send domain templates to each domain agent/client
262 # FOR NOW: send untranslated but partitioned tosca files to scheduled sites
263 # TBD: read from work-flow
264 for site in file_paths:
265 domino_client_ip = self.dominoServer.registration_record[site].ipaddr
266 domino_client_port = self.dominoServer.registration_record[site].tcpport
267 self.push_template(miscutil.read_templatefile(file_paths[site]), domino_client_ip, domino_client_port)
270 pub_r = PublishResponseMessage()
271 pub_r.domino_udid = SERVER_UDID
272 pub_r.seq_no = self.seqno
273 pub_r.responseCode = SUCCESS
274 self.seqno = self.seqno + 1
277 #Query from Domino Client is received
280 # - Respond Back with Query Response
281 def d_query(self, qu_msg):
283 qu_r = QueryResponseMessage()
290 self.assignedUUIDs = list()
291 self.subscribed_labels = dict()
292 self.subscribed_templateformats = dict()
293 self.registration_record = dict()
294 self.communicationHandler = CommunicationHandler(self)
295 self.processor = Communication.Processor(self.communicationHandler)
296 self.transport = TSocket.TServerSocket(port=DOMINO_SERVER_PORT)
297 self.tfactory = TTransport.TBufferedTransportFactory()
298 self.pfactory = TBinaryProtocol.TBinaryProtocolFactory()
299 #Use TThreadedServer or TThreadPoolServer for a multithreaded server
300 #self.communicationServer = TServer.TThreadedServer(self.processor, self.transport, self.tfactory, self.pfactory)
301 self.communicationServer = TServer.TThreadPoolServer(self.processor, self.transport, self.tfactory, self.pfactory)
304 def start_communicationService(self):
305 self.communicationServer.serve()
307 #For now assign the desired UDID
309 #Check if ID is already assigned and in use
310 #If not assigned, assign it
311 #If assigned, offer a new random id
312 def assign_udid(self, udid_desired):
313 if udid_desired in self.assignedUUIDs:
314 new_udid = random.getrandbits(63)
315 while new_udid in self.assignedUUIDs:
316 new_udid = random.getrandbits(63)
318 self.assignedUUIDs.append(new_udid)
321 self.assignedUUIDs.append(udid_desired)
324 def handle_RPC_timeout(self, RPCmessage):
325 if RPCmessage.messageType == PUSH:
326 logging.debug('RPC Timeout for message type: PUSH')
327 # TBD: handle each RPC timeout separately
330 server = DominoServer()
332 #process input arguments
334 opts, args = getopt.getopt(argv,"hc:l:",["conf=","log="])
335 except getopt.GetoptError:
336 print 'DominoServer.py -c/--conf <configfile> -l/--log <loglevel>'
338 for opt, arg in opts:
340 print 'DominoClient.py -c/--conf <configfile> -p/--port <socketport> -i/--ipaddr <IPaddr> -l/--log <loglevel>'
342 elif opt in ("-c", "--conf"):
344 elif opt in ("-l", "--log"):
347 numeric_level = getattr(logging, loglevel.upper(), None)
349 if not isinstance(numeric_level, int):
350 raise ValueError('Invalid log level: %s' % loglevel)
351 logging.basicConfig(filename=logfile,level=numeric_level, format='%(asctime)s %(message)s', datefmt='%m/%d/%Y %I:%M:%S %p')
352 except ValueError, ex:
356 #start the database with schemas
357 dbconn = sqlite3.connect(SERVER_DBFILE)
360 c.execute('''CREATE TABLE labels (udid INTEGER PRIMARY KEY, label_list TEXT)''')
361 except sqlite3.OperationalError as ex:
362 logging.debug('In database file %s, no table is created as %s', SERVER_DBFILE, ex.message)
365 c.execute('''CREATE TABLE clients (udid INTEGER PRIMARY KEY, ipaddr TEXT, tcpport INTEGER, templatetypes TEXT, seqno INTEGER)''')
366 except sqlite3.OperationalError as ex:
367 logging.debug('In database file %s, no table is created as %s', SERVER_DBFILE, ex.message)
372 logging.debug('Domino Server Starting...')
373 server.start_communicationService()
376 if __name__ == "__main__":