tools/host_tools/FormatConverter/satxml.py

   1 import os
   2 from datasource import datasource
   3 from xml.dom import minidom
   4 from xml.dom.minidom import Document
   5 from input import inputText
   6
   7 class satxml(datasource):
   8         def __init__(self, filename = "satellites.xml"):
   9                 self.filename = filename
  10                 datasource.__init__(self)
  11
  12                 if not os.path.isfile(filename):
  13                         print "File %s doesn't exist. Creating it." % filename
  14
  15         def getStatus(self):
  16                 text = datasource.getStatus(self)
  17                 return text
  18
  19         def getCapabilities(self):
  20                 return [("set filename", self.setFilename), ("read file", self.read), ("write file", self.write), ("print all", self.printAll)]
  21
  22         def getName(self):
  23                 return "satellites.xml"
  24
  25         def setFilename(self):
  26                 print "Please give a filename <satellites.xml>:"
  27                 filename = inputText()
  28                 if filename == "":
  29                         self.filename = "satellites.xml"
  30                 else:
  31                         self.filename = filename
  32                 print "Filename set to %s" % self.filename
  33
  34         def read(self):
  35                 basicsatxml = minidom.parse(self.filename)
  36
  37                 for sat in basicsatxml.firstChild.childNodes:
  38                         if sat.nodeType == sat.ELEMENT_NODE and sat.localName == "sat":
  39                                 print sat.localName
  40                                 satname = str(sat.getAttribute("name"))
  41                                 satpos = str(sat.getAttribute("position"))
  42                                 self.addSat(satname, satpos)
  43                                 for transponder in sat.childNodes:
  44                                         if transponder.nodeType == transponder.ELEMENT_NODE and transponder.localName == "transponder":
  45                                                 parameters = {}
  46                                                 paramlist = ["frequency", "symbol_rate", "polarization", "fec", "system", "modulation", "tsid", "onid"]
  47                                                 for param in paramlist:
  48                                                         entry = str(transponder.getAttribute(param))
  49                                                         if entry != "":
  50                                                                 parameters[param] = entry
  51                                                 if len(parameters.keys()) > 1:
  52                                                         self.addTransponder(satpos, parameters)
  53                 print self.transponderlist
  54
  55         def write(self):
  56                 satxml = Document()
  57                 satellites = satxml.createElement("satellites")
  58                 satxml.appendChild(satellites)
  59                 satlist = self.transponderlist.keys()
  60                 print self.transponderlist
  61                 satlist.sort()
  62
  63                 for sat in satlist:
  64                         xmlsat = satxml.createElement("sat")
  65                         xmlsat.setAttribute("name", self.satnames[sat])
  66                         xmlsat.setAttribute("flags", "1")
  67                         xmlsat.setAttribute("position", sat)
  68                         satellites.appendChild(xmlsat)
  69                         transponders = self.transponderlist[sat]
  70                         transponders.sort(key = lambda a: a["frequency"])
  71
  72                         for transponder in transponders:
  73                                 xmltransponder = satxml.createElement("transponder")
  74                                 paramlist = ["frequency", "symbol_rate", "polarization", "fec", "system", "modulation", "tsid", "onid"]
  75                                 for param in paramlist:
  76                                         if transponder.has_key(param):
  77                                                 xmltransponder.setAttribute(param, transponder[param])
  78                                 xmlsat.appendChild(xmltransponder)
  79                 prettyxml = satxml.toprettyxml()
  80                 print prettyxml
  81                 file = open(self.filename, "w")
  82                 file.write(prettyxml)
  83                 file.close()
  84
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