import os
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from sfa.util.rspecHelper import RSpec
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"}
tag_status = { "in": "Already Set",
"out": "Not Set",
"add": "To be Added",
"remove": "To be Removed"}
default_tags = "Default tags"
settable_tags = ['delegations', 'initscript']
def itemType(index):
if index.parent().parent().isValid():
return "tag"
else:
return "node"
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)
self.setToolTip("Double click on a row to change its status")
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()
node_index = model.index(index.row(), 1, index.parent())
node_data = node_index.data().toString()
if itemType(node_index) == "tag":
tagname, value = node_index.data().toStringList()
if tagname not in settable_tags:
# Pop up error msg
QMessageBox.warning(self, "Not settable", "Insufficient permission to change '%s' tag" % tagname)
return
if status_data == tag_status['in']:
model.setData(status_index, QString(tag_status['remove']))
elif status_data == tag_status['add']:
model.setData(status_index, QString(tag_status['out']))
elif status_data == tag_status['remove']:
model.setData(status_index, QString(tag_status['in']))
else: model.setData(status_index, QString(node_status['out']))
else:
# This is a hostname
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 node_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)"), node_index, node_index)
def currentChanged(self, current, previous):
model = current.model()
node_index = model.index(current.row(), 1, current.parent())
node_data = node_index.data().toString()
self.emit(SIGNAL('hostnameClicked(QString)'), node_data)
class NodeNameDelegate(QStyledItemDelegate):
def __init__(self, parent):
QStyledItemDelegate.__init__(self, parent)
def paint(self, painter, option, index):
model = index.model()
status_index = model.index(index.row(), 2, index.parent())
status_data = status_index.data().toString()
fm = QFontMetrics(option.font)
rect = option.rect
if itemType(index) == "node":
data = "%s" % 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
rect.setHeight(rect.height() - 2)
rect.setWidth(fm.width(QString(data)) + 6)
rect.setX(rect.x() + 5)
rect.setY(rect.y() - 1)
x, y, h, w = rect.x(), rect.y(), rect.height(), rect.width()
path = QPainterPath()
path.addRoundedRect(x - 1, y + 1, w, h, 4, 4)
painter.save()
painter.setRenderHint(QPainter.Antialiasing)
if status_data == node_status['in']: # already in the slice
painter.fillPath(path, QColor("cyan"))
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))
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))
else:
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(option.rect, 0, QString(data))
else:
indent = 16
tag = index.data().toStringList()
data = "%s: %s" % (tag[0], tag[1])
rect.setHeight(rect.height() - 2)
rect.setWidth(fm.width(QString(data)) + 6 + indent)
rect.setX(rect.x() + 4 + indent)
rect.setY(rect.y() - 1)
x, y, h, w = rect.x(), rect.y(), rect.height(), rect.width()
path = QPainterPath()
path.addRoundedRect(x - 1, y + 1, w, h, 4, 4)
painter.save()
painter.setRenderHint(QPainter.Antialiasing)
if status_data == tag_status['in']: # already in the slice
painter.fillPath(path, QColor("cyan"))
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(option.rect, 0, QString(data))
elif status_data == tag_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))
elif status_data == tag_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))
else:
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(option.rect, 0, QString(data))
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 allChildItems(self):
all = []
for c in self.childItems:
all.append(c)
if c.childItems:
all.extend(c.allChildItems())
return all
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 isinstance(item, TreeItem):
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 nodestatus(self, index):
if not index.isValid():
return QVariant()
item = self.getItem(index)
return item.nodestatus(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 = []
self.process = SfiProcess(self)
self.slicename = QLabel("", self)
self.updateSliceName()
self.slicename.setScaledContents(False)
searchlabel = QLabel ("Search: ", self)
searchlabel.setScaledContents(False)
searchbox = QLineEdit(self)
searchbox.setAttribute(Qt.WA_MacShowFocusRect, 0)
toplayout = QHBoxLayout()
toplayout.addWidget(self.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.connect(self.nodeView, SIGNAL('hostnameClicked(QString)'),
self.nodeSelectionChanged)
self.updateView()
def submitFinished(self):
self.setStatus("Slice data submitted.")
QTimer.singleShot(1000, self.refresh)
def refreshFinished(self):
self.setStatus("Slice data updated.", timeout=5000)
self.updateView()
self.parent().signalAll("rspecUpdated")
def readSliceRSpec(self):
rspec_file = config.getSliceRSpecFile()
if os.path.exists(rspec_file):
xml = open(rspec_file).read()
return RSpec(xml)
return None
def setStatus(self, msg, timeout=None):
self.parent().setStatus(msg, timeout)
def checkRunningProcess(self):
if self.process.isRunning():
self.setStatus("There is already a process running. Please wait.")
return True
return False
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 levels_down(self, item):
if item == self.nodeModel.rootItem:
return 0
else:
return self.levels_down(item.parent()) + 1
def submit(self):
if self.checkRunningProcess():
return
rspec = self.readSliceRSpec()
no_change = True
all_child = self.nodeModel.rootItem.allChildItems()
for c in all_child:
testbed, name, status = c.itemData
if isinstance(status, QVariant):
status = status.toString()
treelevel = self.levels_down(c)
if treelevel == 2:
testbed = c.parent().itemData[0]
if status == node_status['add']:
#print "Add hostname: %s" % name
rspec.add_sliver(name, testbed)
no_change = False
elif status == node_status['remove']:
#print "Remove hostname: %s" % name
rspec.remove_sliver(name, testbed)
no_change = False
elif treelevel == 3:
# A tag entry
tag, value = name
tag = "%s" % tag # Prevent weird error from lxml
node = c.parent().itemData[1]
testbed = c.parent().parent().itemData[0]
if status == tag_status['add']:
#print "Add tag: %s/%s " % (tag, value)
if node.startswith(default_tags):
rspec.add_default_sliver.attribute(tag, value, testbed)
else:
rspec.add_sliver_attribute(tag, value, node, testbed)
no_change = False
elif status == node_status['remove']:
#print "Remove tag: %s/%s" % (tag, value)
if node.startsWith(default_tags):
rspec.remove_default_sliver_attribute(tag, value, testbed)
else:
rspec.remove_sliver_attribute(node, tag, value, testbed)
no_change = False
if no_change:
self.setStatus("No change in slice data. Not submitting!", timeout=3000)
return
self.disconnect(self.process, SIGNAL('finished()'), self.refreshFinished)
self.connect(self.process, SIGNAL('finished()'), self.submitFinished)
self.process.applyRSpec(rspec)
self.setStatus("Sending slice data (RSpec). This will take some time...")
def refresh(self):
if not config.getSlice():
self.setStatus("Slice not set yet!")
return
if self.process.isRunning():
self.setStatus("There is already a process running. Please wait.")
return
self.disconnect(self.process, SIGNAL('finished()'), self.submitFinished)
self.connect(self.process, SIGNAL('finished()'), self.refreshFinished)
self.process.getRSpecFromSM()
self.setStatus("Updating slice data. This will take some time...")
def updateView(self):
global already_in_nodes
already_in_nodes = []
self.network_names = []
self.nodeModel.clear()
rspec = self.readSliceRSpec()
if not rspec:
return None
networks = rspec.get_network_list()
for network in networks:
self.network_names.append(network)
data = [QString(network), QString(""), QString("")]
networkItem = TreeItem(data, self.nodeModel.rootItem)
all_nodes = rspec.get_node_list(network)
sliver_nodes = rspec.get_sliver_list(network)
available_nodes = filter(lambda x:x not in sliver_nodes, all_nodes)
already_in_nodes += sliver_nodes
# Add default slice tags
data = [QString(""), QString("%s for %s" % (default_tags, network)),
QString("")]
nodeItem = TreeItem(data, networkItem)
networkItem.appendChild(nodeItem)
attrs = rspec.get_default_sliver_attributes(network)
for (name, value) in attrs:
tagstring = QStringList([name, value])
data = [QString(""), tagstring, QString(tag_status['in'])]
tagItem = TreeItem(data, nodeItem)
nodeItem.appendChild(tagItem)
for node in sliver_nodes:
data = [QString(""), QString(node), QString(node_status['in'])]
nodeItem = TreeItem(data, networkItem)
networkItem.appendChild(nodeItem)
attrs = rspec.get_sliver_attributes(node, network)
for (name, value) in attrs:
tagstring = QStringList([name, value])
data = [QString(""), tagstring, QString(tag_status['in'])]
tagItem = TreeItem(data, nodeItem)
nodeItem.appendChild(tagItem)
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)
def updateSliceName(self):
self.slicename.setText("Slice : %s" % (config.getSlice() or "None"))
def nodeSelectionChanged(self, hostname):
self.parent().nodeSelectionChanged(hostname)
class MainScreen(SfaScreen):
def __init__(self, parent):
SfaScreen.__init__(self, parent)
slice = SliceWidget(self)
self.init(slice, "Main Window", "OneLab Federation GUI")
def rspecUpdated(self):
self.mainwin.rspecWindow.updateView()
def configurationChanged(self):
self.widget.updateSliceName()
self.widget.updateView()
self.mainwin.rspecWindow.updateView()
def nodeSelectionChanged(self, hostname):
self.mainwin.nodeSelectionChanged(hostname)