7 from PyQt4.QtCore import *
8 from sface.config import config
9 from sface.xmlrpcwindow import get_tracker, XmlrpcReader
11 def find_executable(exec_name):
12 """find the given executable in $PATH"""
13 paths = os.getenv("PATH").split(':')
15 exec_path = os.path.join(p, exec_name)
16 if os.path.exists(exec_path):
21 class SfiProcess(QObject):
22 def __init__(self, parent=None):
23 QObject.__init__(self, parent)
25 env = QProcess.systemEnvironment()
26 env << "PYTHONPATH=%s" % ":".join(sys.path)
27 self.process = QProcess()
28 self.process.setEnvironment(env)
29 self.connect(self.process, SIGNAL("finished(int, QProcess::ExitStatus)"),
32 self.xmlrpcreader = XmlrpcReader() # this one is for parsing XMLRPC responses
34 # holds aggregate output from processStandardOutput(); used by xmlrpc
38 self.connect(self.process, SIGNAL("readyReadStandardOutput()"),
39 self.processStandardOutput)
40 self.connect(self.process, SIGNAL("readyReadStandardError()"),
41 self.processStandardError)
43 def __init_command(self, args):
44 self.args = QStringList()
46 self.args << config.get_dirname()
48 # this shows xmlrpc conversation, see sfi.py docs.
49 # always do this, so we can parse the XML result for faults and show
51 self.args << QString('-D')
54 self.args << QString(arg)
56 self.exe = find_executable("sfi.py")
58 print "FATAL.. Could not locate binary sfi.py - not much we can do without that"
61 return self.process.state() != QProcess.NotRunning
63 def processStandardOutput(self):
64 output = self.process.readAllStandardOutput()
65 self.output = self.output + output
69 def processStandardError(self):
70 print self.process.readAllStandardError()
72 def processFinished(self):
73 if self.process.exitStatus() == QProcess.CrashExit:
74 print self.readOutput()
75 print "Process exited with errors:",
76 err = self.process.error()
77 if err == QProcess.FailedToStart:
79 elif err == QProcess.Crashed:
81 elif err == QProcess.Timedout:
83 elif err == QProcess.WriteError:
85 elif err == QProcess.ReadError:
87 elif err == QProcess.UnknownError:
90 # extract any faults from the XMLRPC response(s)
91 self.xmlrpcreader.responses = []
92 self.xmlrpcreader.store(self.output)
93 self.xmlrpcreader.extractXml()
94 self.responses = self.xmlrpcreader.responses
95 self.faults = [x for x in self.responses if (x["kind"]=="fault")]
98 self.emit(SIGNAL("finished()"))
100 def getFaultString(self):
101 if self.faults == []:
104 return self.faults[0].get("faultString","") + " (" + self.faults[0].get("faultCode","") + ")"
106 def retrieveRspec(self):
107 slice = config.getSlice()
108 mgr = config.getSlicemgr()
109 # Write RSpec to file
110 filename = config.fullpath ("%s.rspec"%slice)
115 args = ["-u", config.getUser(), "-a", config.getAuthority(),
116 "-r", config.getRegistry(), "-s", mgr, "resources",
117 "-o", filename, slice]
119 self.__init_command(args)
123 def retrieveResources(self):
124 mgr = config.getSlicemgr()
125 # Write RSpec to file
126 filename = config.getResourcesRSpecFile()
131 args = ["-u", config.getUser(), "-a", config.getAuthority(),
132 "-r", config.getRegistry(), "-s", mgr, "resources",
135 self.__init_command(args)
140 def listRecords(self, hrn, rectype=None, filename=None):
141 args = ["-u", config.getUser(), "-a", config.getAuthority(),
142 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "list", "-F", "xmllist", hrn]
145 filename = config.getAuthorityListFile()
147 # we can't tell whether SFI will create one file or many, so delete
148 # leftovers from last time, then we'll know what we got, after we get it.
149 if os.path.exists(filename):
151 if os.path.exists(filename + ".1"):
152 os.remove(filename + ".1")
154 args.append(filename)
160 self.__init_command(args)
163 def getRecord(self, hrn, filename=None):
164 args = ["-u", config.getUser(), "-a", config.getAuthority(),
165 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "show", hrn]
168 args.append(filename)
169 self.__init_command(args)
172 def getSliceRecord(self):
173 self.getRecord(config.getSlice(), config.getSliceRecordFile())
175 def getAuthorityRecord(self):
176 self.getRecord(config.getAuthority(), config.getAuthorityRecordFile())
178 def applyRSpec(self, rspec, aggAddr=None, aggPort=None, saveObtained=True):
179 # that's what we pass, like in what we'd like to get
180 requested = config.getSliceRSpecFile() + "_new"
181 # that's what we actually receive
182 # just overwrite the slice file as if we'd used 'resources'
183 obtained = config.getSliceRSpecFile()
184 rspec.save(requested)
185 args = ["-u", config.getUser(), "-a", config.getAuthority(),
186 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "create"]
189 args = args + ["-o", obtained]
192 args = args + ["-a", aggAddr, "-p", str(aggPort)]
194 args = args + [config.getSlice(), requested]
196 self.__init_command(args)
199 def deleteSlivers(self, slice=None, aggAddr=None, aggPort=None):
201 slice = config.getSlice()
203 args = ["-u", config.getUser(), "-a", config.getAuthority(),
204 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "delete"]
207 args = args + ["-a", aggAddr, "-p", str(aggPort)]
209 args = args + [slice]
211 self.__init_command(args)
214 def updateRecord(self, filename):
215 args = ["-u", config.getUser(), "-a", config.getAuthority(),
216 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "update", filename]
217 self.__init_command(args)
220 def addRecord(self, filename):
221 args = ["-u", config.getUser(), "-a", config.getAuthority(),
222 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "add", filename]
223 self.__init_command(args)
226 def removeRecord(self, hrn):
227 args = ["-u", config.getUser(), "-a", config.getAuthority(),
228 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "remove", hrn]
229 self.__init_command(args)
232 def renewSlivers(self, expiration, slice=None):
234 slice = config.getSlice()
236 args = ["-u", config.getUser(), "-a", config.getAuthority(),
237 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "renew",
239 self.__init_command(args)
242 def sliverStatus(self, slice=None, filename=None):
244 slice = config.getSlice()
247 filename = config.fullpath(slice+".sliverstatus")
249 args = ["-u", config.getUser(), "-a", config.getAuthority(),
250 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "status",
251 "-o", filename, "-F", "pickled", slice]
252 self.__init_command(args)
255 def getSliceMgrVersion(self, filename=None):
257 filename = config.fullpath("slicemgr.version")
259 args = ["-u", config.getUser(), "-a", config.getAuthority(),
260 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "version",
261 "-o", filename, "-F", "pickled",]
262 self.__init_command(args)
270 self.process.start(self.exe, self.args)
272 def readOutput(self):
273 if self.process.state() == QProcess.NotRunning:
274 return self.process.readAll()
276 def trace_command (self):
278 self._trace=time.time()
279 command = "%s %s" % (self.exe, self.args.join(" "))
280 print time.strftime('%H:%M:%S'),'Invoking',command
282 def trace_end (self):
284 # command = "%s %s" % (self.exe, self.args.join(" "))
285 print time.strftime('%H:%M:%S'),"Done [%.3f s]"%(time.time()-self._trace)
287 get_tracker().getAndPrint(self.output)