6 from PyQt4.QtCore import *
7 from sface.config import config
8 from sface.xmlrpcwindow import XmlrpcTracker
10 def find_executable(exec_name):
11 """find the given executable in $PATH"""
12 paths = os.getenv("PATH").split(':')
14 exec_path = os.path.join(p, exec_name)
15 if os.path.exists(exec_path):
20 class SfiProcess(QObject):
21 def __init__(self, parent=None):
22 QObject.__init__(self, parent)
24 env = QProcess.systemEnvironment()
25 env << "PYTHONPATH=%s" % ":".join(sys.path)
26 self.process = QProcess()
27 self.process.setEnvironment(env)
28 self.connect(self.process, SIGNAL("finished(int, QProcess::ExitStatus)"),
31 self.xmlrpctracker = XmlrpcTracker()
33 # holds aggregate output from processStandardOutput(); used by xmlrpc
37 self.connect(self.process, SIGNAL("readyReadStandardOutput()"),
38 self.processStandardOutput)
39 self.connect(self.process, SIGNAL("readyReadStandardError()"),
40 self.processStandardError)
42 def __init_command(self, args):
43 self.args = QStringList()
45 # this shows xmlrpc conversation, see sfi.py docs.
46 self.args << QString('-D')
48 self.args << QString(arg)
50 self.exe = find_executable("sfi.py")
52 print "FATAL.. Could not locate binary sfi.py - not much we can do without that"
55 return self.process.state() != QProcess.NotRunning
57 def processStandardOutput(self):
58 output = self.process.readAllStandardOutput()
59 self.output = self.output + output
63 def processStandardError(self):
64 print self.process.readAllStandardError()
66 def processFinished(self):
67 if self.process.exitStatus() == QProcess.CrashExit:
68 print self.readOutput()
69 print "Process exited with errors:",
70 err = self.process.error()
71 if err == QProcess.FailedToStart:
73 elif err == QProcess.Crashed:
75 elif err == QProcess.Timedout:
77 elif err == QProcess.WriteError:
79 elif err == QProcess.ReadError:
81 elif err == QProcess.UnknownError:
84 self.emit(SIGNAL("finished()"))
86 def __getRSpec(self, mgr):
87 slice = config.getSlice()
88 # Write RSpec to file for testing.
89 filename = os.path.expanduser("~/.sfi/" + slice + ".rspec")
94 args = ["-u", config.getUser(), "-a", config.getAuthority(),
95 "-r", config.getRegistry(), "-s", mgr, "resources",
96 "-o", filename, slice]
98 self.__init_command(args)
102 def getRSpecFromSM(self):
103 return self.__getRSpec(config.getSlicemgr())
105 # def getRSpecFromAM(self):
106 # return self.__getRSpec(config.getAggmgr())
108 def getRecord(self, hrn, filename=None):
109 args = ["-u", config.getUser(), "-a", config.getAuthority(),
110 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "show", hrn]
113 args.append(filename)
114 self.__init_command(args)
117 def applyRSpec(self, rspec):
118 filename = config.getSliceRSpecFile() + "_new"
120 args = ["-u", config.getUser(), "-a", config.getAuthority(),
121 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "create",
122 config.getSlice(), filename]
123 self.__init_command(args)
127 def updateRecord(self, filename):
128 args = ["-u", config.getUser(), "-a", config.getAuthority(),
129 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "update", filename]
130 self.__init_command(args)
133 def renewSlivers(self, expiration):
134 args = ["-u", config.getUser(), "-a", config.getAuthority(),
135 "-r", config.getRegistry(), "-s", config.getSlicemgr(), "renew",
136 config.getSlice(), expiration]
137 self.__init_command(args)
143 self.process.start(self.exe, self.args)
145 def readOutput(self):
146 if self.process.state() == QProcess.NotRunning:
147 return self.process.readAll()
149 def trace_command (self):
151 self._trace=time.time()
152 command = "%s %s" % (self.exe, self.args.join(" "))
153 print time.strftime('%H:%M:%S'),'Invoking',command
155 def trace_end (self):
157 # command = "%s %s" % (self.exe, self.args.join(" "))
158 print time.strftime('%H:%M:%S'),"Done [%.3f s]"%(time.time()-self._trace)
160 self.xmlrpctracker.getAndPrint(self.output)