import os
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from sfa.util.rspecHelper import RSpec
from sface.sfahelper import *
from sface.config import config
from sface.sfiprocess import SfiProcess
from sface.screens.sfascreen import SfaScreen
already_in_nodes = []
node_status = { "in": "Already Selected",
"out": "Not Selected",
"add": "To be Added",
"remove": "To be Removed"}
class NodeView(QTreeView):
def __init__(self, parent):
QTreeView.__init__(self, parent)
self.setAnimated(True)
self.setItemsExpandable(True)
self.setRootIsDecorated(True)
self.setAlternatingRowColors(True)
# self.setSelectionMode(self.MultiSelection)
self.setAttribute(Qt.WA_MacShowFocusRect, 0)
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
def mouseDoubleClickEvent(self, event):
index = self.currentIndex()
model = index.model()
status_index = model.index(index.row(), 2, index.parent())
status_data = status_index.data().toString()
hostname_index = model.index(index.row(), 1, index.parent())
hostname_data = hostname_index.data().toString()
if status_data == node_status['in']:
model.setData(status_index, QString(node_status['remove']))
elif status_data == node_status['out']:
model.setData(status_index, QString(node_status['add']))
elif status_data in (node_status['add'], node_status['remove']):
if hostname_data in already_in_nodes: model.setData(status_index, QString(node_status['in']))
else: model.setData(status_index, QString(node_status['out']))
model.emit(SIGNAL("dataChanged(QModelIndex, QModelIndex)"), hostname_index, hostname_index)
class NodeNameDelegate(QStyledItemDelegate):
def __init__(self, parent):
QStyledItemDelegate.__init__(self, parent)
def paint(self, painter, option, index):
model = index.model()
data = "%s" % index.data().toString()
status_index = model.index(index.row(), 2, index.parent())
status_data = status_index.data().toString()
if status_data not in (node_status['in'], node_status['remove'], node_status['add']):
# default view
QStyledItemDelegate.paint(self, painter, option, index)
return
fm = QFontMetrics(option.font)
rect = option.rect
rect.setWidth(fm.width(QString(data)) + 8)
rect.setHeight(rect.height() - 2)
rect.setX(rect.x() + 4)
x, y, h, w = rect.x(), rect.y(), rect.height(), rect.width()
path = QPainterPath()
path.addRoundedRect(x, y, w, h, 4, 4)
painter.save()
painter.setRenderHint(QPainter.Antialiasing)
painter.drawRoundedRect(rect, 4, 4)
if status_data == node_status['in']: # already in the slice
painter.fillPath(path, QColor.fromRgb(0, 250, 0))
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(option.rect, 0, QString(data))
elif status_data == node_status['add']: # newly added to the slice
painter.fillPath(path, QColor.fromRgb(0, 250, 0))
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(option.rect, 0, QString(data))
painter.drawRect(x + w + 10, y + 3, 10, 10)
painter.fillRect(x + w + 10, y + 3, 10, 10, QColor.fromRgb(0, 250, 0))
elif status_data == node_status['remove']: # removed from the slice
painter.fillPath(path, QColor.fromRgb(250, 0, 0))
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(option.rect, 0, QString(data))
painter.drawRect(x + w + 10, y + 3, 10, 10)
painter.fillRect(x + w + 10, y + 3, 10, 10, QColor.fromRgb(250, 0, 0))
painter.restore()
class TreeItem:
def __init__(self, data, parent=None):
self.parentItem = parent
self.itemData = data
self.childItems = []
def clear(self):
for child in self.childItems:
child.clear()
del child
del self.childItems
self.childItems = []
def appendChild(self, child):
self.childItems.append(child)
def child(self, row):
return self.childItems[row]
def childCount(self):
return len(self.childItems)
def childNumber(self):
if self.parentItem:
return self.parentItem.childItems.index(self)
return 0
def columnCount(self):
return len(self.itemData)
def data(self, column):
return self.itemData[column]
def insertChildren(self, position, count, columns):
if position < 0 or position > len(self.childItems):
return False
for row in range(count):
data = self.data(columns)
item = TreeItem(data, self)
self.childItems.insert(position, item)
return True
def insertColumns(self, position, columns):
if position < 0 or position > len(self.itemData):
return False
for column in range(columns):
self.itemData.insert(position, QVariant())
for child in self.childItems:
child.insertColumns(position, columns)
return True
def setData(self, column, value):
if column < 0 or column >= len(self.itemData):
return False
self.itemData[column] = value
return True
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"), QString("Status")])
def getItem(self, index):
if index.isValid():
item = index.internalPointer()
if item: return item
return self.rootItem
def headerData(self, section, orientation, role):
if orientation == Qt.Horizontal and role in (Qt.DisplayRole, Qt.EditRole):
return self.rootItem.data(section)
return QVariant()
def index(self, row, column, parent):
if not self.hasIndex(row, column, parent):
return QModelIndex()
parentItem = self.getItem(parent)
childItem = parentItem.child(row)
if childItem:
return self.createIndex(row, column, childItem)
else:
return QModelIndex()
def insertColumns(self, position, columns, parent):
self.beginInsertColumns(parent, position, position + columns -1)
ret = self.rootItem.insertColumns(position, columns)
self.endInsertColumns()
return ret
def insertRows(self, position, rows, parent):
parentItem = self.getItem(parent)
self.beginInsertRows(parent, position, position + rows -1)
ret = parentItem.insertChildren(position, rows, self.rootItem.columnCount())
self.endInsertRows()
return ret
def parent(self, index):
if not index.isValid():
return QModelIndex()
childItem = self.getItem(index)
parentItem = childItem.parent()
if parentItem is self.rootItem:
return QModelIndex()
return self.createIndex(parentItem.childNumber(), 0, parentItem)
def rowCount(self, parent=QModelIndex()):
parentItem = self.getItem(parent)
return parentItem.childCount()
def columnCount(self, parent=None):
return self.rootItem.columnCount()
def data(self, index, role):
if not index.isValid():
return QVariant()
if role != Qt.DisplayRole and role != Qt.EditRole:
return QVariant()
item = self.getItem(index)
return item.data(index.column())
def flags(self, index):
if not index.isValid():
return 0
return Qt.ItemIsEnabled | Qt.ItemIsSelectable# | Qt.ItemIsEditable
def setData(self, index, value, role):
if role != Qt.EditRole:
return False
item = self.getItem(index)
ret = item.setData(index.column(), value)
if ret:
self.emit(SIGNAL("dataChanged(QModelIndex, QModelIndex)"), index, index)
return ret
class SliceWidget(QWidget):
def __init__(self, parent):
QWidget.__init__(self, parent)
self.network_names = []
slicename = QLabel ("Slice : %s"%(config.getSlice() or "None"),self)
slicename.setScaledContents(False)
searchlabel = QLabel ("Search: ", self)
searchlabel.setScaledContents(False)
searchbox = QLineEdit(self)
searchbox.setAttribute(Qt.WA_MacShowFocusRect, 0)
toplayout = QHBoxLayout()
toplayout.addWidget(slicename, 0, Qt.AlignLeft)
toplayout.addStretch()
toplayout.addWidget(searchlabel, 0, Qt.AlignRight)
toplayout.addWidget(searchbox, 0, Qt.AlignRight)
self.nodeView = NodeView(self)
self.nodeModel = NodeModel(self)
self.filterModel = QSortFilterProxyModel(self) # enable filtering
self.nodeNameDelegate = NodeNameDelegate(self)
refresh = QPushButton("Update Slice Data", self)
refresh.setSizePolicy(QSizePolicy.Maximum, QSizePolicy.Maximum)
submit = QPushButton("Submit", self)
submit.setSizePolicy(QSizePolicy.Maximum, QSizePolicy.Maximum)
bottomlayout = QHBoxLayout()
bottomlayout.addWidget(refresh, 0, Qt.AlignLeft)
bottomlayout.addStretch()
bottomlayout.addWidget(submit, 0, Qt.AlignRight)
layout = QVBoxLayout()
layout.addLayout(toplayout)
layout.addWidget(self.nodeView)
layout.addLayout(bottomlayout)
self.setLayout(layout)
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.connect(refresh, SIGNAL('clicked()'), self.refresh)
self.connect(submit, SIGNAL('clicked()'), self.submit)
self.connect(searchbox, SIGNAL('textChanged(QString)'), self.filter)
self.updateView()
def filter(self, filter_string):
# for hierarchical models QSortFilterProxyModel applies the
# sort recursively. if the parent doesn't match the criteria
# we won't be able to match the children. so we need to match
# parent (by matching the network_names)
networks = ["^%s$" % n for n in self.network_names]
filters = networks + [str(filter_string)]
self.filterModel.setFilterRegExp(QRegExp('|'.join(filters)))
def submit(self):
self.parent().setStatus("TODO: Submit not implemented yet!", 3000)
def readSliceRSpec(self):
rspec_file = config.getSliceRSpecFile()
if os.path.exists(rspec_file):
xml = open(rspec_file).read()
return xml
return None
def refresh(self):
if not config.getSlice():
self.parent().setStatus("Slice not set yet!", timeout=None)
return
self.process = SfiProcess()
outfile = self.process.getRSpecFromSM()
self.parent().setStatus("Updating slice data. This may take some time...", timeout=None)
self.connect(self.process, SIGNAL('finished()'), self.refreshFinished)
def refreshFinished(self):
del self.process
self.parent().setStatus("Slice data updated.", timeout=5000)
self.updateView()
def updateView(self):
global already_in_nodes
already_in_nodes = []
self.network_names = []
self.nodeModel.clear()
rspec_string = self.readSliceRSpec()
if not rspec_string:
return None
networks = rspec_get_networks(rspec_string)
for network in networks:
self.network_names.append(network)
networkItem = TreeItem([QString(network), QString(""), QString("")], self.nodeModel.rootItem)
all_nodes = rspec_get_nodes_from_network(rspec_string, network)
sliver_nodes = rspec_get_sliver_nodes_from_network(rspec_string, network)
available_nodes = filter(lambda x:x not in sliver_nodes, all_nodes)
already_in_nodes += sliver_nodes
for node in sliver_nodes:
nodeItem = TreeItem([QString(""), QString("%s" % node), QString(node_status['in'])], networkItem)
networkItem.appendChild(nodeItem)
for node in available_nodes:
nodeItem = TreeItem([QString(""), QString(node), QString(node_status['out'])], networkItem)
networkItem.appendChild(nodeItem)
self.nodeModel.rootItem.appendChild(networkItem)
self.filterModel.setSourceModel(self.nodeModel)
self.filterModel.setFilterKeyColumn(-1)
self.filterModel.setDynamicSortFilter(True)
self.nodeView.setItemDelegateForColumn(1, self.nodeNameDelegate)
self.nodeView.setModel(self.filterModel)
self.nodeView.expandAll()
self.nodeView.resizeColumnToContents(1)
class MainScreen(SfaScreen):
def __init__(self, parent):
SfaScreen.__init__(self, parent)
slice = SliceWidget(self)
self.init(slice, "Main Window", "OneLab Federation GUI")