import os
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from sfa.util.rspecHelper import RSpec
from sface.sfahelper import *
from sface.sficonfig import config
from sface.sfiprocess import SfiProcess
from sface.screens.sfascreen import SfaScreen
class NodeView(QTreeView):
def __init__(self, parent):
QTreeView.__init__(self, parent)
self.setRootIsDecorated(False)
self.setAlternatingRowColors(True)
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
class NodeModel(QStandardItemModel):
def __init__(self, parent):
QStandardItemModel.__init__(self, 0, 3, parent)
self.setHeaderData(0, Qt.Horizontal, QString("Testbed"))
self.setHeaderData(1, Qt.Horizontal, QString("Hostname"))
self.setHeaderData(2, Qt.Horizontal, QString("IsIn"))
class SliceWidget(QWidget):
def __init__(self, parent):
QWidget.__init__(self, parent)
self.nodeView = NodeView(self)
self.nodeModel = NodeModel(self)
self.nodeView.setModel(self.nodeModel)
refresh = QLabel("Refresh", self)
refresh.setScaledContents(False)
slicename = QLabel ("Slice : %s"%(config.getSlice() or "None"),self)
slicename.setScaledContents(False)
hlayout = QHBoxLayout()
hlayout.addWidget(slicename)
hlayout.addStretch()
hlayout.addWidget(refresh)
layout = QVBoxLayout()
layout.addLayout(hlayout)
layout.addWidget(self.nodeView)
self.setLayout(layout)
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.connect(refresh, SIGNAL('linkActivated(QString)'), self.refresh)
rspec_file = os.path.expanduser("~/.sfi/%s.rspec" % config.getSlice())
if os.path.exists(rspec_file):
self.updateView()
def readSliceRSpec(self):
rspec_file = os.path.expanduser("~/.sfi/%s.rspec" % config.getSlice())
xml = open(rspec_file).read()
return xml
def refresh(self, link=None):
if not config.getSlice():
self.parent().setStatus("Slice not set yet!")
return
self.process = SfiProcess()
outfile = self.process.getRSpecFromSM()
self.parent().setStatus("Updating slice data. This may take some time...")
self.connect(self.process, SIGNAL('finished()'), self.refreshFinished)
def refreshFinished(self):
del self.process
self.parent().setStatus("Slice data updated.")
self.updateView()
def updateView(self):
rspec_string = self.readSliceRSpec()
networks = rspec_get_networks(rspec_string)
networks.reverse()
for network in networks:
# nodes = self.rspec_get_sliver_nodes_from_network(rspec_string, network)
# for node in nodes: self.addNode(network, node, True)
# nodes = self.rspec_get_other_nodes_from_network(rspec_string, network)
# for node in nodes: self.addNode(network, node, False)
# hacky - i'm just gettin used to this xml navigation stuff
xml_nodes = rspec_get_xml_nodes_from_network(rspec_string, network)
from lxml import etree
# addNode inserts before, so let's start with the ones that are not in
for xml_node in xml_nodes:
if not xml_node.xpath('sliver'):
self.addNode(network, xml_node.xpath('hostname/text()')[0],False)
for xml_node in xml_nodes:
if xml_node.xpath('sliver'):
self.addNode(network, xml_node.xpath('hostname/text()')[0],True)
def addNode(self, testbed, hostname, mark):
self.nodeModel.insertRow(0)
self.nodeModel.setData(self.nodeModel.index(0,0), QString(testbed))
self.nodeModel.setData(self.nodeModel.index(0,1), QString(hostname))
if mark:msg="x"
else: msg="-"
self.nodeModel.setData(self.nodeModel.index(0,2), QString(msg))
class MainScreen(SfaScreen):
def __init__(self, parent):
SfaScreen.__init__(self, parent)
slice = SliceWidget(self)
self.init(slice, "Main Window", "PlanetLab Federation GUI")