-from PyQt4.QtGui import QWidget, QLabel
+from PyQt4.QtCore import Qt, QString, SIGNAL
+from PyQt4.QtGui import QWidget, QLabel, QTreeView, QStandardItemModel, QVBoxLayout, QSizePolicy
+
+from sfa.util.rspecHelper import RSpec
from sfadata import SfaData
from sfascreen import SfaScreen
class SliceWidget(QWidget):
def __init__(self, parent=None):
QWidget.__init__(self, parent)
- label = QLabel("slice widget", self)
+
+ self.nodeView = QTreeView(self)
+ self.nodeView.setRootIsDecorated(False)
+ self.nodeView.setAlternatingRowColors(True)
+ self.nodeView.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
+
+ self.nodeModel = QStandardItemModel(0, 3, self)
+ self.nodeModel.setHeaderData(0, Qt.Horizontal, QString("Testbed"))
+ self.nodeModel.setHeaderData(1, Qt.Horizontal, QString("Hostname"))
+ self.nodeModel.setHeaderData(2, Qt.Horizontal, QString("IsIn"))
+
+ self.nodeView.setModel(self.nodeModel)
+
+ label = QLabel("<a href='refresh'>Refresh</a>", self)
+ label.setScaledContents(False)
+ self.connect(label, SIGNAL('linkActivated(QString)'), self.refresh)
+
+ # mmhh.
+ data=SfaData()
+ slicename = QLabel ("Slice : %s"%(data.getSlice() or "None"),self)
+
+ layout = QVBoxLayout()
+ layout.addWidget(label)
+ layout.addWidget(slicename)
+ layout.addWidget(self.nodeView)
+ self.setLayout(layout)
+ self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
+
+
+
+ # TODO: use the methods from sfa-trunk
+ def rspec_get_networks(self, rspec_string):
+ rspec = RSpec (rspec_string)
+ return rspec.rspec.xpath("./network[@name]/@name")
+ def rspec_get_xml_nodes_from_network(self, rspec_string, network):
+ rspec = RSpec (rspec_string)
+ return rspec.rspec.xpath("./network[@name='%s']/site/node" % network)
+ def rspec_get_sliver_nodes_from_network(self, rspec_string, network):
+ rspec = RSpec (rspec_string)
+ return rspec.rspec.xpath("./network[@name='%s']/site/node[sliver]/hostname/text()" % network)
+ def rspec_get_other_nodes_from_network(self, rspec_string, network):
+ rspec = RSpec (rspec_string)
+ # xxx todo - could not find the xpath syntax for 'does not have the sliver attribute'
+ return rspec.rspec.xpath("./network[@name='%s']/site/node[~sliver]/hostname/text()" % network)
+
+ def refresh(self, link=None):
+ data = SfaData()
+ if not data.getSlice():
+ print 'slice not set yet'
+ return
+ if not data.SFACE_DEBUG:
+ rspec_string = data.getRSpecFromSM()
+ else:
+ print 'SFACE_DEBUG : using local file'
+ import os
+ rspec_string = open(os.path.expanduser("~/.sfi/%s.rspec"%data.getSlice())).read()
+
+ networks = self.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 = self.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 SfaMainScreen(SfaScreen):
def __init__(self, parent=None):
SfaScreen.__init__(self, parent)
+
slice = SliceWidget(self)
self.init(slice, "Main Window", "PlanetLab Federation GUI")
+ slice.refresh()