673 lines
27 KiB
Python
673 lines
27 KiB
Python
#
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# CORE
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# Copyright (c)2016 the Boeing Company.
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# See the LICENSE file included in this distribution.
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#
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# authors: Rod Santiago
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# John Kharouta
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#
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import threading, traceback, sys
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from core.api import coreapi, corewrapper, coreapi2
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from core.experiments import ExperimentStore
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# Aliases
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wrapper = corewrapper
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legacy = coreapi
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# Legacy node types that are Devices in API2
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deviceTypesSet = set([
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coreapi.CORE_NODE_SWITCH,
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coreapi.CORE_NODE_HUB,
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coreapi.CORE_NODE_WLAN,
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coreapi.CORE_NODE_RJ45,
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coreapi.CORE_NODE_TUNNEL,
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coreapi.CORE_NODE_KTUNNEL,
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coreapi.CORE_NODE_EMANE])
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# Legacy node types that are Devices in API2
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nodeTypesSet = set([
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coreapi.CORE_NODE_DEF,
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coreapi.CORE_NODE_XEN])
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# Legacy node types to API2 device type field mapping
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devtypeDict = {
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coreapi.CORE_NODE_SWITCH: coreapi2.Device.SWITCH,
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coreapi.CORE_NODE_HUB: coreapi2.Device.HUB,
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coreapi.CORE_NODE_WLAN: coreapi2.Device.WLAN,
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coreapi.CORE_NODE_RJ45: coreapi2.Device.RJ45,
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coreapi.CORE_NODE_TUNNEL: coreapi2.Device.TUNNEL,
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coreapi.CORE_NODE_KTUNNEL: coreapi2.Device.KTUNNEL
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}
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# Legacy node types to API2 emulator field mapping
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emulationDict = {
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coreapi.CORE_NODE_DEF: coreapi2.Node.DEFAULT,
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coreapi.CORE_NODE_XEN: coreapi2.Node.XEN,
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coreapi.CORE_NODE_EMANE: coreapi2.Device.EMANE
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}
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class CoreApiBridge(object):
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def __init__(self, handler):
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# The collector is used for gathering node messages sent by the core session,
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# for example, during INSTANTIATION as nodes are started until RUNTIME.
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self.collector = None
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# The currently associated (client added) experiment.
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# This will be use to get contextual information for partial messages as nodes
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# in the experiments are instantiated by the daemon.
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self.assocExperiment = None
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# Mutex
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self.lock = threading.Lock()
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# Reference to the owning handler in the core-daemon
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self.handler = handler
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def info(self, msg):
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''' Utility method for writing output to stdout.
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'''
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print msg
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sys.stdout.flush()
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def warn(self, msg):
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''' Utility method for writing output to stderr.
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'''
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print >> sys.stderr, msg
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sys.stderr.flush()
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def recvmsg(self):
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''' Receive data, parse a CoreMessage and queue it onto an existing
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session handler's queue, if available.
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'''
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data = coreapi2.recvAndUnpack(self.handler.request.recv)
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msgs = self.processApi2Message(data)
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return msgs
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def dispatchreplies(self, replies):
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''' Dispatch a reply to a previously received message.
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'''
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api2Replies = self.processLegacyCoreMessage(replies)
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if api2Replies:
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for reply in api2Replies:
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try:
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# send to API2 client
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self.handler.request.sendall(reply)
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except Exception, e:
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if self.handler.debug:
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self.info("-"*60)
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traceback.print_exc(file=sys.stdout)
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self.info("-"*60)
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raise e
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def sendall(self, data):
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''' The daemon calls this method with legacy API data. Convert first
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API2 then send.
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'''
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try:
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msgs = self.processLegacyCoreMessage((data,))
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if msgs:
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for msg in msgs:
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self.handler.request.sendall(msg)
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except Exception, e:
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if self.handler.debug:
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self.info("-"*60)
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traceback.print_exc(file=sys.stdout)
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self.info("-"*60)
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raise e
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def processApi2Message(self, data):
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message = coreapi2.CoreMessage()
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message.ParseFromString(data)
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if message.HasField('session'):
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return self.processApi2SessionMsg(message.session,
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message.purpose)
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if message.HasField('experiment'):
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return self.processApi2ExperimentMsg(message.experiment,
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message.purpose)
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if message.HasField('event'):
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return self.processApi2Event(message.event,
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message.purpose)
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def processLegacyCoreMessage(self, messages):
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api2msgs = []
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for msgstr in messages:
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# Unpack the message
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parser = wrapper.CoreMessageParser(msgstr)
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if parser.getType() == legacy.CORE_API_REG_MSG:
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self.processLegacyRegMsg(parser.createWrapper(), api2msgs)
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elif parser.getType() == legacy.CORE_API_SESS_MSG:
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self.processLegacySessionMsg(parser.createWrapper(), api2msgs)
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elif parser.getType() == legacy.CORE_API_EVENT_MSG:
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self.processLegacyEventMsg(parser.createWrapper(), api2msgs)
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elif parser.getType() == legacy.CORE_API_NODE_MSG:
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self.processLegacyNodeMsg(parser.createWrapper(), api2msgs)
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elif parser.getType() == legacy.CORE_API_CONF_MSG:
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self.processLegacyConfigMsg(parser.createWrapper(), api2msgs)
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else:
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self.warn("received message type %s" % (parser.getType()))
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return api2msgs
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def processLegacyRegMsg(self, regMsg, api2msgs):
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'''
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Intercept an outgoing register message from the CORE daemon and generate
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equivalent API2 message to send to the client
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'''
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'''
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print "RegisterMessage"
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print "\twireless=", regMsg.getWireless()
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print "\tmobility=", regMsg.getMobility()
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print "\tutility=", regMsg.getUtility()
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print "\texec=", regMsg.getExecsrv()
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print "\tgui=", regMsg.getGui()
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print "\temul=", regMsg.getEmulsrv()
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print "\tsess=", regMsg.getSession()
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'''
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pass
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def processLegacySessionMsg(self, sessMsg, api2msgs):
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'''
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Intercept an outgoing session message from the CORE daemon and generate the equivalent
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API2 messages to send to the client
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'''
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'''
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print "SessionMessage"
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print "\tnumber=", sessMsg.getNumber()
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print "\tname=", sessMsg.getName()
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print "\tfile=", sessMsg.getFile()
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print "\tnodecount=", sessMsg.getNodecount()
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print "\tdate=", sessMsg.getDate()
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print "\tthumb=", sessMsg.getThumb()
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print "\tuser=", sessMsg.getUser()
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print "\topaque=", sessMsg.getOpaque()
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'''
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sessions = sessMsg.getNumber().split("|")
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port_num = int(sessions[0])
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newMsg = coreapi2.CoreMessage()
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newMsg.session.clientId = 'client' + sessions[0]
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newMsg.session.port_num = port_num
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# List active experiments in the server
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for sid in sessions:
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sid = int(sid)
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if sid == 0:
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continue
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session = self.handler.session.server.getsession(sessionid=sid, useexisting=True)
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if session is None:
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self.warn("Invalid session ID received from daemon")
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continue
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if session == self.handler.session:
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continue
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expId = session.metadata.getitem('experimentId')
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if expId:
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newMsg.session.all_exps.append(expId)
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else:
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newMsg.session.all_exps.append('_%s' % (str(sid)))
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newMsg.purpose = coreapi2.ADD
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api2msgs.append(coreapi2.pack(newMsg))
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def processLegacyEventMsg(self, event, api2msgs):
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'''
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Intercept an outgoing event generated by the CORE daemon and generate the equivalent
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API2 messages to send to the client
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'''
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'''
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print "Event:"
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print "\tnode=", event.getNode()
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print "\ttype=", event.getType()
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print "\tname=", event.getName()
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print "\tdata=", event.getData()
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print "\ttime=", event.getTime()
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print "\tsessions=", event.getSession()
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'''
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if event.getType() == legacy.CORE_EVENT_RUNTIME_STATE:
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newMsg = coreapi2.CoreMessage()
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newMsg.purpose = coreapi2.STATE_CHANGE
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newMsg.event.state = coreapi2.RUNTIME
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api2msgs.append(coreapi2.pack(newMsg))
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with self.lock:
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if self.collector:
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self.collector.experiment.running = True
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self.collector.purpose = coreapi2.MODIFY
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else:
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raise RuntimeError, "runtime entered without an instantiated experiment"
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api2msgs.append(coreapi2.pack(self.collector))
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self.collector = None
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def processLegacyConfigMsg(self, confMsg, api2msgs):
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'''
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Intercept an outgoing config message generated by the CORE daemon and generate the equivalent
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API2 messages to send to the client
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'''
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print "Config:"
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print "\tobj=", confMsg.getObj()
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print "\tnode=", confMsg.getNode()
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print "\ttype=", confMsg.getType()
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print "\tdata=", confMsg.getData()
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print "\tvalues=", confMsg.getValues()
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print "\tcaptions=", confMsg.getCaptions()
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print "\tbitmap=", confMsg.getBitmap()
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print "\tposs values=", confMsg.getPossible()
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print "\tgroups=", confMsg.getGroups()
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print "\tsession=", confMsg.getSession()
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print "\tnetid=", confMsg.getNetid()
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print "\topaque=", confMsg.getOpaque()
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# The CONFIG message will have its 'object' field set to the string literal
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# "session" if it is ending a stream of node and link messages sent to a
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# client that has joined a running experiment (legacy:session).
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if confMsg.getObj() == "session":
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# TODO: Process the values field
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# Send what has been collected to the client
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with self.lock:
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if self.collector:
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self.collector.experiment.running = True
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self.collector.purpose = coreapi2.MODIFY
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else:
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raise RuntimeError, "runtime entered without an instantiated experiment"
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api2msgs.append(coreapi2.pack(self.collector))
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self.assocExperiment = self.collector.experiment
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self.collector = None
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def processLegacyNodeMsg(self, nodeMsg, api2msgs):
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'''
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Intercept an outgoing legacy node message generated by the CORE daemon and generate the equivalent
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API2 messages to send to the client
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'''
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print "Node:"
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print "\tnumber=", nodeMsg.getNumber()
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print "\ttype=", nodeMsg.getType()
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print "\tname=", nodeMsg.getName()
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print "\tipaddr=", nodeMsg.getIpaddr()
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print "\tmacaddr=", nodeMsg.getMacaddr()
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print "\tip6addr=", nodeMsg.getIp6addr()
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print "\tmodel=", nodeMsg.getModel()
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print "\temusrv=", nodeMsg.getEmusrv()
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print "\tsession=", nodeMsg.getSession()
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print "\txpos=", nodeMsg.getXpos()
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print "\typos=", nodeMsg.getYpos()
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print "\tcanvas=", nodeMsg.getCanvas()
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print "\temuid=", nodeMsg.getEmuid()
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print "\tnetid=", nodeMsg.getNetid()
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print "\tservices=", nodeMsg.getServices()
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print "\tlat=", nodeMsg.getLat()
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print "\tlon=", nodeMsg.getLong()
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print "\talt=", nodeMsg.getAlt()
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print "\ticon=", nodeMsg.getIcon()
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print "\topaque=", nodeMsg.getOpaque()
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api2_node=None
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api2_dev=None
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with self.lock:
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# If collection is active (i.e. joining a session is in progress) collect node
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# information into an experiment message. Otherise, send as an independent Node or
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# Device message.
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newMsg = None
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if not self.collector:
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newMsg = coreapi2.CoreMessage()
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# The legacy API uses a Node message to convey everything from hubs to hosts.
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# But it does always have type information in it. Get context information
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# from assocExperiment for the newly instantiated node or device being conveyed
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# by the Node message.
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# Determine if the legacy message if for a node or a device
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nodeOrDev = None
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isNode = self.assocExperiment and coreapi2.findNodeByIdx(self.assocExperiment,
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nodeMsg.getNumber())
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isDev = self.assocExperiment and coreapi2.findDeviceByIdx(self.assocExperiment,
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nodeMsg.getNumber())
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# If the node number in the message maps to a node or a device in the associated experiment,
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# check if the message indicates a consistent type
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if isNode and nodeMsg.getType() is not None and nodeMsg.getType() not in nodeTypesSet:
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raise RuntimeError, "Inconsistent node types."
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if isDev and nodeMsg.getType() is not None and nodeMsg.getType() not in deviceTypesSet:
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raise RuntimeError, "Inconsistent device types."
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if not isNode and not isDev and nodeMsg.getType() is not None:
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isNode = nodeMsg.getType() in nodeTypesSet
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isDev = nodeMsg.getType() in deviceTypesSet
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# Add the node/device to either the experiment object in the collector for transmission as
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# part of a API2 session/experiment, or to a new message for independent API2 Node or
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# Device message transmission
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if isNode:
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# add or update an node
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if self.collector:
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nodeOrDev = coreapi2.getNodeByIdx(self.collector.experiment, nodeMsg.getNumber())
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else:
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nodeOrDev = newMsg.node
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elif isDev:
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# add or update a device
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if self.collector:
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nodeOrDev = coreapi2.getDeviceByIdx(self.collector.experiment, nodeMsg.getNumber())
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else:
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nodeOrDev = newMsg.device
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else:
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raise RuntimeError, "Unrecognized node number without type information"
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if nodeOrDev:
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nodeOrDev.idx = nodeMsg.getNumber()
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if nodeMsg.getEmuid() is not None: nodeOrDev.emu_id=nodeMsg.getEmuid()
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if nodeMsg.getName() is not None: nodeOrDev.name=nodeMsg.getName()
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if nodeMsg.getXpos() is not None: nodeOrDev.location.x_pos=nodeMsg.getXpos()
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if nodeMsg.getYpos() is not None: nodeOrDev.location.y_pos=nodeMsg.getYpos()
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if nodeMsg.getIcon() is not None: nodeOrDev.icon=nodeMsg.getIcon()
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if nodeMsg.getType() is not None:
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try:
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if isDev and devtypeDict.get(nodeMsg.getType()) is not None:
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nodeOrDev.device_type = devtypeDict.get(nodeMsg.getType())
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if emulationDict.get(nodeMsg.getType()) is not None:
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nodeOrDev.emulation = emulationDict.get(nodeMsg.getType())
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except e:
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self.warn("Unmapped type in legacy node message")
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# TODO: if nodeMsg.getCanvas() is not None: nodeOrDev.canvas=nodeMsg.getCanvas()
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# TODO: association with networks
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# TODO: services
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if newMsg:
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newMsg.purpose = coreapi2.MODIFY
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api2msgs.append(coreapi2.pack(newMsg))
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else:
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self.warn("Received update for unknown node or device %d" % (nodeMsg.getNumber()))
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def processLegacyLinkMsg(self, linkMsg, api2msgs):
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'''
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Intercept an outgoing legacy link message generated by the CORE daemon and generate the equivalent
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API2 messages to send to the client
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'''
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# When collecting information for a complete experment (i.e. when joining an experiment),
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# add information from legacy Link messages to the experiment message being constructed.
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# Otherwise, send as an independent Channel message.
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newMsg = None
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if not self.collector:
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newMsg = coreapi2.CoreMessage()
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if not self.collector.experiment:
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raise RuntimeError, 'Invalid collector'
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if not self.collector.experiment.network:
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self.collector.experiment.network.name = "default"
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self.collector.experiment.network.idx = 1
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# Endpoint 1
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if coreapi2.findNodeByIdx(self.collector.experiment, linkMsg.getN1number()):
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ep1 = coreapi2.getNodeInterfaceByIdx(self.collector.experiment,
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linkMsg.getN1number(),
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linkMsg.getIf1num())
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else:
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ep1 = coreapi2.getDeviceInterfaceByIdx(self.collector.experiment,
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linkMsg.getN1number(),
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linkMsg.getIf1num())
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if linkMsg.getIf1ip4(): ep1.ip4_addr = linkMsg.getIf1ip4()
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if linkMsg.getIf1ip4mask(): ep1.ip4_mask = linkMsg.getIf1ip4mask()
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# TODO: Add IPv6 fields updates
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# Endpoint 2
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if coreapi2.findNodeByIdx(self.collector.experiment, linkMsg.getN2number()):
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ep2 = coreapi2.getNodeInterfaceByIdx(self.collector.experiment,
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linkMsg.getN2number(),
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linkMsg.getIf2num())
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else:
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ep2 = coreapi2.getDeviceInterfaceByIdx(self.collector.experiment,
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linkMsg.getN2number(),
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linkMsg.getIf2num())
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if linkMsg.getIf2ip4(): ep2.ip4_addr = linkMsg.getIf2ip4()
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if linkMsg.getIf2ip4mask(): ep2.ip4_mask = linkMsg.getIf2ip4mask()
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# TODO: Add IPv6 fields updates
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# Capture updated link characteristics onto the Channel message
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channel = coreapi2.getChannel(self.collector.network, ep1_interface, ep2_interface)
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if linkMsg.getDelay() : channel.delay = linkMsg.getDelay()
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if linkMsg.getBw(): channel.bandwidth = linkMsg.getBw()
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if linkMsg.getPer(): channel.per = linkMsg.getPer()
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if linkMsg.getDup(): channel.dups = linkMsg.getDup()
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if linkMsg.getJitter(): channel.jitter = linkMsg.getJitter()
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if linkMsg.getMer(): channel.mer = linkMsg.getMer()
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if linkMsg.getBurst(): channel.burst = linkMsg.getBurst()
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#TODO: Add remaining channel parameters
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def processApi2SessionMsg(self, message, purpose):
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legacymsgs = []
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if purpose == coreapi2.ADD:
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if self.handler.debug:
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self.info('Received ADD session request message')
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legacymsgs.append(wrapper.RegMsg.instantiate(0, gui='true'))
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return legacymsgs
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# The response will be sent to the API2 client when a legacy session message is received from the daemon
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elif purpose == coreapi2.MODIFY:
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if self.handler.debug:
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self.info('Received MODIFY session request message')
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if message.HasField("experiment"):
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exp = message.experiment
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if exp.HasField("experimentId"):
|
|
expId = str(exp.experimentId)
|
|
response = coreapi2.CoreMessage()
|
|
response.experiment.experimentId = exp.experimentId;
|
|
response.purpose = purpose
|
|
with self.lock:
|
|
# Start a collector for nodes, devices and channels in the
|
|
self.collector = response
|
|
if expId.startswith('_'):
|
|
try:
|
|
legacySessNo = int(expId[1:])
|
|
if self.handler.debug:
|
|
self.info('request connection to session %d' % (legacySessNo))
|
|
msg = wrapper.SessionMsg.instantiate(
|
|
coreapi.CORE_API_ADD_FLAG | coreapi.CORE_API_STR_FLAG,
|
|
str(legacySessNo), nodecount="0")
|
|
legacymsgs.append(msg)
|
|
|
|
except Exception, e:
|
|
if self.handler.debug:
|
|
self.info("-"*60)
|
|
traceback.print_exc(file=sys.stdout)
|
|
self.info("-"*60)
|
|
raise e
|
|
else:
|
|
# TODO: get legacy session number from experimentId if running, or pass back
|
|
# non-running experiment components
|
|
pass
|
|
else:
|
|
self.warn("session modify request without an experimentId")
|
|
else:
|
|
self.warn("session modify request without an experiment")
|
|
|
|
return legacymsgs
|
|
elif purpose == coreapi2.DELETE:
|
|
legacymsgs.append(wrapper.ConfMsg.instantiate("all",
|
|
coreapi.CONF_TYPE_FLAGS_RESET))
|
|
# TODO: Remove experiment from dictionary
|
|
|
|
else:
|
|
self.warn('Received invalid purpose for SESSION')
|
|
|
|
|
|
def processApi2ExperimentMsg(self, exp, purpose):
|
|
if purpose == coreapi2.ADD:
|
|
if ExperimentStore.addExperiment(exp):
|
|
response = coreapi2.CoreMessage()
|
|
response.experiment.experimentId = exp.experimentId;
|
|
response.purpose = purpose
|
|
|
|
# Associate the newly added experiment with this bridge.
|
|
# Start a collector for gathering messages for nodes and links instantiated
|
|
# by the daemon
|
|
with self.lock:
|
|
if not self.collector:
|
|
self.assocExperiment = exp
|
|
self.collector = response
|
|
else:
|
|
raise RuntimeError, "Instantiation of experiment while another is active"
|
|
self.handler.request.sendall(coreapi2.pack(response))
|
|
return self.translateApi2ExperimentMsg(exp)
|
|
else:
|
|
return self.Api2Error("unable to add experiment")
|
|
elif purpose == coreapi2.MODIFY:
|
|
# Detect if a change in state is requested
|
|
if exp.HasField('running'):
|
|
if exp.running:
|
|
# TODO: Check for a state transition
|
|
# transition to instantiation state (legacy)
|
|
msgs = []
|
|
msgs.append(wrapper.EventMsg.instantiate(
|
|
legacy.CORE_EVENT_INSTANTIATION_STATE))
|
|
return msgs
|
|
else:
|
|
# TODO: Check for transition from running to not running
|
|
# transition to data collection state (legacy)
|
|
msgs = []
|
|
msgs.append(wrapper.EventMsg.instantiate(
|
|
legacy.CORE_EVENT_DATACOLLECT_STATE))
|
|
return msgs
|
|
else:
|
|
self.warn("Unsupported experiment modification received")
|
|
|
|
|
|
def translateApi2ExperimentMsg(self, message):
|
|
if self.handler.debug:
|
|
self.info('Received experiment message')
|
|
msgs = []
|
|
# Flag need to be 0 otherwise CORE will not enter runtime state (per JavaAdaptor, need verification)
|
|
msgs.append(wrapper.SessionMsg.instantiate(
|
|
0, "0",
|
|
nodecount=str(len(message.nodes) + len(message.devices))))
|
|
# Quickly transition through the definition and configuration states
|
|
msgs.append(wrapper.EventMsg.instantiate(
|
|
legacy.CORE_EVENT_DEFINITION_STATE))
|
|
msgs.append(wrapper.EventMsg.instantiate(
|
|
legacy.CORE_EVENT_CONFIGURATION_STATE))
|
|
|
|
# Send location
|
|
# TODO: Add this info to the Experiment
|
|
msgs.append(wrapper.ConfMsg.instantiate(obj="location",
|
|
dataTypes=(9,9,9,9,9,9),
|
|
dataValues='0|0| 47.5766974863|-122.125920191|0.0|150.0'))
|
|
|
|
# TODO
|
|
# Send control net configuration
|
|
# send node types
|
|
# send services
|
|
|
|
# send nodes
|
|
devices = {}
|
|
for node in message.nodes:
|
|
if node.idx in devices:
|
|
raise IOError, "received experiment with node/device duplicates"
|
|
devices[node.idx] = node
|
|
# TODO: Add other fields
|
|
msgs.append(wrapper.NodeMsg.instantiate(
|
|
legacy.CORE_API_ADD_FLAG|legacy.CORE_API_STR_FLAG,
|
|
node.idx,
|
|
str(node.name)))
|
|
|
|
for device in message.devices:
|
|
if device.idx in devices:
|
|
raise IOError, "received experiment with node/device duplicates"
|
|
devices[device.idx] = device
|
|
# TODO: Add other fields
|
|
msgs.append(wrapper.NodeMsg.instantiate(
|
|
legacy.CORE_API_ADD_FLAG|legacy.CORE_API_STR_FLAG,
|
|
device.idx,
|
|
str(device.name),
|
|
type = legacy.CORE_NODE_SWITCH)) # TODO: Update this later
|
|
|
|
for network in message.networks:
|
|
for channel in network.channels:
|
|
if len(channel.endpoints) == 2:
|
|
ep0 = channel.endpoints[0]
|
|
ep1 = channel.endpoints[1]
|
|
if ep0.dev_idx not in devices or ep1.dev_idx not in devices:
|
|
raise IOError, "received channel message with invalid first endpoint device (%d)" % (ep0.dev_idx)
|
|
if ep1.dev_idx not in devices:
|
|
raise IOError, "received channel message with invalid second endpoint device (%d)" % (ep1.dev_idx)
|
|
if ep0.intf_idx in devices[ep0.dev_idx].interfaces:
|
|
raise IOError, "received channel message with invalid first endpoint interface (%d)" % (ep0.intf_idx)
|
|
if ep1.intf_idx in devices[ep1.dev_idx].interfaces:
|
|
raise IOError, "received channel message with invalid second endpoint interface (%d)" % (ep1.intf_idx)
|
|
|
|
if0 = devices[ep0.dev_idx].interfaces[ep0.intf_idx]
|
|
if1 = devices[ep1.dev_idx].interfaces[ep1.intf_idx]
|
|
|
|
msgs.append(wrapper.LinkMsg.instantiate(legacy.CORE_API_ADD_FLAG,
|
|
ep0.dev_idx,ep0.intf_idx,
|
|
ep1.dev_idx,ep1.intf_idx,
|
|
if1ip4=if0.ip4_addr if if0.HasField("ip4_addr") else None,
|
|
if2ip4=if1.ip4_addr if if1.HasField("ip4_addr") else None))
|
|
|
|
# TODO
|
|
# send metadata
|
|
|
|
|
|
# Finally, set the new experiment ID in the legacy core session as metadata
|
|
# TODO: Append this to the end of metadata above
|
|
msgs.append(wrapper.ConfMsg.instantiate("metadata",
|
|
dataTypes = (coreapi.CONF_DATA_TYPE_STRING,),
|
|
dataValues = "experimentId=%s" % (str(message.experimentId))))
|
|
|
|
return msgs
|
|
|
|
|
|
def processApi2Event(self, event, purpose):
|
|
if self.debug:
|
|
self.info('Received event')
|
|
|
|
|
|
|
|
|
|
|