X-Git-Url: http://git.onelab.eu/?p=sface.git;a=blobdiff_plain;f=sface%2Fscreens%2Fmainscreen.py;h=575d5f9183fa3d2c94ee355d8592c46081e12062;hp=f566b9913e44c064eba556eba9b81a485aefef00;hb=3e48f23eafc944bf3ed409623f3fa6243a60bf4c;hpb=e095c7423002644d129cef273f3a63646903b788

diff --git a/sface/screens/mainscreen.py b/sface/screens/mainscreen.py
index f566b99..575d5f9 100644
--- a/sface/screens/mainscreen.py
+++ b/sface/screens/mainscreen.py
@@ -1,104 +1,218 @@
 
-from PyQt4.QtCore import Qt, QString, SIGNAL
-from PyQt4.QtGui import QWidget, QLabel, QTreeView, QStandardItemModel, QVBoxLayout, QSizePolicy
+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)
 
-class SliceWidget(QWidget):
-    def __init__(self, parent=None):
-        QWidget.__init__(self, parent)
+        self.setItemsExpandable(True)
+        self.setRootIsDecorated(True)
+        self.setAlternatingRowColors(True)
+        self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
 
-        self.nodeView = QTreeView(self)
-        self.nodeView.setRootIsDecorated(False)
-        self.nodeView.setAlternatingRowColors(True)
-        self.nodeView.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
+class TreeItem:
+    def __init__(self, data, parent=None):
+        self.parentItem = parent
+        self.itemData = data
+        self.childItems = []
 
-        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"))
+    def clear(self):
+        for child in self.childItems:
+            child.clear()
+            del child
+        del self.childItems
+        self.childItems = []
 
-        self.nodeView.setModel(self.nodeModel)
+    def appendChild(self, child):
+        self.childItems.append(child)
+
+    def child(self, row):
+        return self.childItems[row]
+    
+    def childCount(self):
+        return len(self.childItems)
+
+    def columnCount(self):
+        return len(self.itemData)
+
+    def data(self, column):
+        return self.itemData[column]
+
+    def row(self):
+        if (self.parentItem):
+            try:
+                return self.parentItem.childItems.index(self)
+            except ValueError:
+                return 0
+        return 0
+    
+    def parent(self):
+        return self.parentItem
+
+
+
+class NodeModel(QAbstractItemModel):
+    def __init__(self, parent):
+        QAbstractItemModel.__init__(self, parent)
+        self.__initRoot()
+
+    def clear(self):
+        self.rootItem.clear()
+        self.__initRoot()
+
+    def __initRoot(self):
+        self.rootItem = TreeItem([QString("Testbed"), QString("Hostname")])
+
+    def columnCount(self, parent):
+        if parent.isValid():
+            return parent.internalPointer().columnCount()
+        else:
+            return self.rootItem.columnCount()
+
+    def data(self, index, role):
+        if not index.isValid():
+            return QVariant()
+
+        if role != Qt.DisplayRole:
+            return QVariant()
+
+        item = index.internalPointer()
+        return item.data(index.column())
+
+    def headerData(self, section, orientation, role):
+        if orientation == Qt.Horizontal and role == Qt.DisplayRole:
+            return self.rootItem.data(section)
+        return QVariant()
+
+    def flags(self, index):
+        if not index.isValid():
+            return 0
+        return Qt.ItemIsEnabled | Qt.ItemIsSelectable
+
+    def index(self, row, column, parent):
+        if not self.hasIndex(row, column, parent):
+            return QModelIndex()
+
+        parentItem = None
+        if not parent.isValid():
+            parentItem = self.rootItem
+        else:
+            parentItem = parent.internalPointer()
+            
+        childItem = parentItem.child(row)
+        if childItem:
+            return self.createIndex(row, column, childItem)
+        else:
+            return QModelIndex()
 
-        label = QLabel("<a href='refresh'>Refresh</a>", self)
-        label.setScaledContents(False)
-        self.connect(label, SIGNAL('linkActivated(QString)'), self.refresh)
+    def parent(self, index):
+        if not index.isValid():
+            return QModelIndex()
 
+        childItem = index.internalPointer()
+        parentItem = childItem.parent()
+
+        if not parentItem:
+            return QModelIndex()
+
+        if parentItem is self.rootItem:
+            return QModelIndex()
+
+        return self.createIndex(parentItem.row(), 0, parentItem)
+
+    def rowCount(self, parent):
+        if parent.column() > 0:
+            return 0
+
+        parentItem = None
+        if not parent.isValid():
+            parentItem = self.rootItem
+        else:
+            parentItem = parent.internalPointer()
+
+        return parentItem.childCount()
+
+
+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("<a href='refresh'>Refresh</a>", 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.addWidget(label)
-        layout.addWidget(slicename)
+        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()
         
-    
-    # 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 readSliceRSpec(self):
+        rspec_file = os.path.expanduser("~/.sfi/%s.rspec" % config.getSlice())
+        xml = open(rspec_file).read()
+        return xml
 
     def refresh(self, link=None):
-        data = SfaData()
-        if not data.getSlice(): 
-            print 'slice not set yet'
+        if not config.getSlice():
+            self.parent().setStatus("<font color='red'>Slice not set yet!</font>")
             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()
+        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("<font color='green'>Slice data updated.</font>")
+        self.updateView()
+
+    def updateView(self):
+        self.nodeModel.clear()
+        rspec_string = self.readSliceRSpec()
+        networks = rspec_get_networks(rspec_string)
 
         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))
+            networkItem = TreeItem([QString(network), QString("")], self.nodeModel.rootItem)
+
+            all_nodes = rspec_get_nodes_from_network(rspec_string, network)
+            for node in all_nodes:
+                nodeItem = TreeItem([QString(""), QString(node)], networkItem)
+                networkItem.appendChild(nodeItem)
+
+            self.nodeModel.rootItem.appendChild(networkItem)
 
+        self.nodeView.expandAll()
 
 
 class MainScreen(SfaScreen):
-    def __init__(self, parent=None):
+    def __init__(self, parent):
         SfaScreen.__init__(self, parent)
 
         slice = SliceWidget(self)
         self.init(slice, "Main Window", "PlanetLab Federation GUI")
-#        slice.refresh()