import datetime
import os
from PyQt4.QtCore import *
from PyQt4.QtGui import *
#from sfa.util.rspecHelper import RSpec
from sfa.rspecs.rspec_parser import parse_rspec
from sface.config import config
from sface.sfirenew import RenewWindow
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']
NAME_COLUMN = 0
NODE_STATUS_COLUMN = 1
MEMBERSHIP_STATUS_COLUMN = 2
KIND_COLUMN = 3
# maximum length of a name to display before clipping
NAME_MAX_LEN = 48
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. Right click on a host to add a tag.")
def keyPressEvent(self, event):
if (event.key() == Qt.Key_Space):
self.toggleSelection()
else:
QTreeView.keyPressEvent(self, event)
def mouseDoubleClickEvent(self, event):
self.toggleSelection()
def toggleSelection(self):
index = self.currentIndex()
model = index.model()
status_index = model.index(index.row(), MEMBERSHIP_STATUS_COLUMN, index.parent())
status_data = status_index.data().toString()
node_index = model.index(index.row(), NAME_COLUMN, index.parent())
node_data = node_index.data().toString()
if itemType(node_index) == "tag":
data = node_index.data().toString()
tagname, value = data.split(": ")
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 mousePressEvent(self, event):
QTreeView.mousePressEvent(self, event)
if event.button() == Qt.LeftButton:
return
# Right click
index = self.currentIndex()
model = index.model()
status_index = model.index(index.row(), 1, index.parent())
status_data = status_index.data().toString()
node_index = model.index(index.row(), 0, index.parent())
node_data = node_index.data().toString()
if itemType(node_index) == "node":
# This is a hostname
if status_data in (node_status['in'], node_status['add'], ""):
# Pop up a dialog box for adding a new attribute
tagname, ok = QInputDialog.getItem(self, "Add tag",
"Tag name:", settable_tags)
if ok:
value, ok = QInputDialog.getText(self, "Add tag",
"Value for tag '%s'" % tagname)
if ok:
# Add a new row to the model for the tag
# For testing with the QStandardItemModel
#nodeItem = model.itemFromIndex(index)
#tagstring = QString("%s: %s" % (tagname, value))
#tagItem = QStandardItem(tagstring)
#status = QStandardItem(QString(tag_status['add']))
#nodeItem.appendRow([tagItem, status])
# We're using the QSortFilterProxyModel here
src_index = model.mapToSource(index)
src_model = src_index.model()
nodeItem = src_model.itemFromIndex(src_index)
tagstring = QString("%s: %s" % (tagname, value))
tagItem = QStandardItem(tagstring)
status = QStandardItem(QString(tag_status['add']))
nodeItem.appendRow([tagItem, QStandardItem(QString("")), status])
elif status_data in (node_status['out'], node_status['remove']):
QMessageBox.warning(self, "Not selected", "Can only add tags to selected nodes")
return
model.emit(SIGNAL("dataChanged(QModelIndex, QModelIndex)"), node_index, node_index)
def currentChanged(self, current, previous):
model = current.model()
node_index = model.index(current.row(), 0, 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 displayText(self, value, locale):
data = str(QStyledItemDelegate.displayText(self, value, locale))
if (len(data)>NAME_MAX_LEN):
data = data[:(NAME_MAX_LEN-3)] + "..."
return QString(data)
def paint(self, painter, option, index):
model = index.model()
data = str(self.displayText(index.data(), QLocale()))
status_index = model.index(index.row(), MEMBERSHIP_STATUS_COLUMN, index.parent())
status_data = status_index.data().toString()
fm = QFontMetrics(option.font)
rect = QRect(option.rect)
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 option.state & QStyle.State_Selected:
painter.fillRect(option.rect, option.palette.color(QPalette.Active, QPalette.Highlight))
if itemType(index) == "node":
if status_data == node_status['in']: # already in the slice
painter.fillPath(path, QColor.fromRgb(0, 250, 250))
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(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(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(rect, 0, QString(data))
else:
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(rect, 0, QString(data))
else:
if status_data == tag_status['in']: # already in the slice
painter.fillPath(path, QColor.fromRgb(0, 250, 250))
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(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(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(rect, 0, QString(data))
else:
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(rect, 0, QString(data))
painter.restore()
class NodeStatusDelegate(QStyledItemDelegate):
def __init__(self, parent):
QStyledItemDelegate.__init__(self, parent)
def paint(self, painter, option, index):
model = index.model()
nodestatus_index = model.index(index.row(), NODE_STATUS_COLUMN, index.parent())
nodestatus_data = nodestatus_index.data().toString()
fm = QFontMetrics(option.font)
rect = QRect(option.rect)
data = index.data().toString()
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 option.state & QStyle.State_Selected:
painter.fillRect(option.rect, option.palette.color(QPalette.Active, QPalette.Highlight))
if (nodestatus_data == ""):
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(rect, 0, QString(data))
elif (nodestatus_data == "boot"):
painter.fillPath(path, QColor.fromRgb(0, 250, 0))
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(rect, 0, QString(data))
else:
painter.fillPath(path, QColor.fromRgb(250, 0, 0))
painter.setPen(QColor.fromRgb(0, 0, 0))
painter.drawText(rect, 0, QString(data))
painter.restore()
class NodeFilterProxyModel(QSortFilterProxyModel):
def __init__(self, parent=None):
QSortFilterProxyModel.__init__(self, parent)
self.hostname_filter_regex = None
self.nodestatus_filter = None
def setHostNameFilter(self, hostname):
self.hostname_filter_regex = QRegExp(hostname)
self.invalidateFilter()
def setNodeStatusFilter(self, status):
if (status == "all"):
self.nodestatus_filter = None
else:
self.nodestatus_filter = status
self.invalidateFilter()
def filterAcceptsRow(self, sourceRow, source_parent):
kind_data = self.sourceModel().index(sourceRow, KIND_COLUMN, source_parent).data().toString()
if (kind_data == "node"):
if self.hostname_filter_regex:
name_data = self.sourceModel().index(sourceRow, NAME_COLUMN, source_parent).data().toString()
if (self.hostname_filter_regex.indexIn(name_data) < 0):
return False
if self.nodestatus_filter:
nodestatus_data = self.sourceModel().index(sourceRow, NODE_STATUS_COLUMN, source_parent).data().toString()
if (nodestatus_data != self.nodestatus_filter):
return False
return True
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)
filterlabel = QLabel ("Filter: ", self)
filterbox = QComboBox(self)
filterbox.addItems(["all", "boot", "disabled", "reinstall", "safeboot"])
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(filterlabel, 0, Qt.AlignRight)
toplayout.addWidget(filterbox, 0, Qt.AlignRight)
toplayout.addWidget(searchlabel, 0, Qt.AlignRight)
toplayout.addWidget(searchbox, 0, Qt.AlignRight)
self.nodeView = NodeView(self)
self.nodeModel = QStandardItemModel(0, 4, self)
self.filterModel = NodeFilterProxyModel(self)
self.nodeNameDelegate = NodeNameDelegate(self)
self.nodeStatusDelegate = NodeStatusDelegate(self)
refresh = QPushButton("Refresh Slice Data", self)
refresh.setSizePolicy(QSizePolicy.Maximum, QSizePolicy.Maximum)
renew = QPushButton("Renew Slice", self)
renew.setSizePolicy(QSizePolicy.Maximum, QSizePolicy.Maximum)
submit = QPushButton("Submit", self)
submit.setSizePolicy(QSizePolicy.Maximum, QSizePolicy.Maximum)
bottomlayout = QHBoxLayout()
bottomlayout.addWidget(refresh, 0, Qt.AlignLeft)
bottomlayout.addWidget(renew, 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(renew, SIGNAL('clicked()'), self.renew)
self.connect(submit, SIGNAL('clicked()'), self.submit)
self.connect(searchbox, SIGNAL('textChanged(QString)'), self.search)
self.connect(filterbox, SIGNAL('currentIndexChanged(QString)'), self.filter)
self.connect(self.nodeView, SIGNAL('hostnameClicked(QString)'),
self.nodeSelectionChanged)
self.updateView()
def submitFinished(self):
faultString = self.process.getFaultString()
if not faultString:
self.setStatus("Slice data submitted.")
else:
self.setStatus("Slice submit failed: %s" % (faultString))
# no need to do that anymore
# QTimer.singleShot(1000, self.refresh)
self.updateView()
self.parent().signalAll("rspecUpdated")
def refreshFinished(self):
self.setStatus("Slice data refreshed.", 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 parse_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 search(self, search_string):
self.filterModel.setHostNameFilter(str(search_string))
def filter(self, filter_string):
self.filterModel.setNodeStatusFilter(str(filter_string))
def itemStatus(self, item):
statusItem = item.parent().child(item.row(), MEMBERSHIP_STATUS_COLUMN)
return statusItem.data(Qt.DisplayRole).toString()
def itemText(self, item):
return item.data(Qt.DisplayRole).toString()
# Recursively walk the tree, making changes to the RSpec
def process_subtree(self, rspec, item, depth = 0):
change = False
model = self.nodeModel
if depth in [0, 1]:
pass
elif depth == 2: # Hostname
hostname = self.itemText(item)
testbed = self.itemText(item.parent())
status = self.itemStatus(item)
if status == node_status['add']:
print "Add hostname: %s" % hostname
rspec.add_slivers(str(hostname), testbed)
change = True
elif status == node_status['remove']:
print "Remove hostname: %s" % hostname
rspec.remove_slivers(str(hostname), testbed)
change = True
elif depth == 3: # Tag
tag, value = self.itemText(item).split(": ")
status = self.itemStatus(item)
tag = "%s" % tag # Prevent weird error from lxml
value = "%s" % value # Prevent weird error from lxml
node = self.itemText(item.parent())
testbed = self.itemText(item.parent().parent())
if status == tag_status['add']:
print "Add tag to (%s, %s): %s/%s " % (testbed, node, tag, value)
if node.startsWith(default_tags):
rspec.add_default_sliver_attribute(tag, value, testbed)
else:
rspec.add_sliver_attribute(node, tag, value, testbed)
change = True
elif status == tag_status['remove']:
print "Remove tag from (%s, %s): %s/%s " % (testbed, node, tag, value)
if node.startsWith(default_tags):
rspec.remove_default_sliver_attribute(tag, value, testbed)
else:
rspec.remove_sliver_attribute(node, tag, value, testbed)
change = True
children = item.rowCount()
for row in range(0, children):
status = self.process_subtree(rspec, item.child(row), depth + 1)
change = change or status
return change
def submit(self):
if self.checkRunningProcess():
return
rspec = self.readSliceRSpec()
change = self.process_subtree(rspec, self.nodeModel.invisibleRootItem())
if not 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 renew(self):
dlg = RenewWindow(parent=self)
dlg.exec_()
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.retrieveRspec()
self.setStatus("Refreshing 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
rootItem = self.nodeModel.invisibleRootItem()
#networks = sorted(rspec.get_network_list())
networks = rspec.get_networks()
for network in networks:
self.network_names.append(network)
#all_nodes = rspec.get_node_list(network)
#sliver_nodes = rspec.get_sliver_list(network)
all_nodes = rspec.get_nodes(network)
sliver_nodes = rspec.get_nodes_with_slivers(network)
available_nodes = [ node for node in all_nodes if node not in sliver_nodes ]
networkItem = QStandardItem(QString(network))
msg = "%s Nodes\t%s Selected" % (len(all_nodes), len(sliver_nodes))
rootItem.appendRow([networkItem, QStandardItem(QString("")), QStandardItem(QString(msg)), QStandardItem(QString("network"))])
already_in_nodes += sliver_nodes
# Add default slice tags
nodeItem = QStandardItem(QString("%s for %s" % (default_tags, network)))
statusItem = QStandardItem(QString(""))
nodeStatus = QStandardItem(QString(""))
networkItem.appendRow([nodeItem, nodeStatus, statusItem, QStandardItem(QString("defaults"))])
attrs = rspec.get_default_sliver_attributes(network)
for (name, value) in attrs:
tagstring = QString("%s: %s" % (name, value))
tagItem = QStandardItem(tagstring)
status = QStandardItem(QString(tag_status['in']))
nodeStatus = QStandardItem(QString(""))
nodeItem.appendRow([tagItem, nodeStatus, status, QStandardItem(QString("attribute"))])
for node in sliver_nodes:
nodeItem = QStandardItem(QString(node))
statusItem = QStandardItem(QString(node_status['in']))
nodeStatus = QStandardItem(QString(rspec.get_node_element(node, network).attrib.get("boot_state","")))
networkItem.appendRow([nodeItem, nodeStatus, statusItem, QStandardItem(QString("node"))])
attrs = rspec.get_sliver_attributes(node, network)
for (name, value) in attrs:
tagstring = QString("%s: %s" % (name, value))
tagItem = QStandardItem(tagstring)
statusItem = QStandardItem(QString(tag_status['in']))
nodeStatus = QStandardItem(QString(""))
nodeItem.appendRow([tagItem, nodeStatus, statusItem, QStandardItem(QString("attribute"))])
for node in available_nodes:
nodeItem = QStandardItem(QString(node))
statusItem = QStandardItem(QString(node_status['out']))
nodeStatus = QStandardItem(QString(rspec.get_node_element(node, network).attrib.get("boot_state","")))
networkItem.appendRow([nodeItem, nodeStatus, statusItem, QStandardItem(QString("node"))])
self.filterModel.setSourceModel(self.nodeModel)
self.filterModel.setDynamicSortFilter(True)
headers = QStringList() << "Hostname or Tag" << "Node Status" << "Membership Status" << "Kind"
self.nodeModel.setHorizontalHeaderLabels(headers)
self.nodeView.setItemDelegateForColumn(0, self.nodeNameDelegate)
self.nodeView.setItemDelegateForColumn(1, self.nodeStatusDelegate)
self.nodeView.setModel(self.filterModel)
self.nodeView.hideColumn(KIND_COLUMN)
self.nodeView.expandAll()
self.nodeView.resizeColumnToContents(0)
self.nodeView.collapseAll()
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, "Nodes", "OneLab SFA crawler")
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)