sface/screens/userscreen.py

   1
   2 import datetime
   3 import os
   4 import pickle
   5 from PyQt4.QtCore import *
   6 from PyQt4.QtGui import *
   7
   8 from sfa.util.record import SfaRecord, SliceRecord, AuthorityRecord, UserRecord
   9 from sface.config import config
  10 from sface.sfiprocess import SfiProcess
  11 from sface.screens.sfascreen import SfaScreen
  12
  13 NAME_COLUMN = 0
  14 #ROLE_COLUMN = 1
  15 MEMBERSHIP_STATUS_COLUMN = 1
  16 SERVER_MEMBERSHIP_STATUS_COLUMN = 2
  17
  18 user_status = { "in": "Already Selected",
  19                 "out": "Not Selected",
  20                 "add": "To be Added",
  21                 "remove": "To be Removed"}
  22
  23 class UserView(QTableView):
  24     def __init__(self, parent=None):
  25         QTableView.__init__(self, parent)
  26
  27         self.setSelectionBehavior(QAbstractItemView.SelectRows)
  28         self.setSelectionMode(QAbstractItemView.SingleSelection)
  29         self.setAlternatingRowColors(True)
  30         self.setAttribute(Qt.WA_MacShowFocusRect, 0)
  31         self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
  32         self.setToolTip("Double click on a row to change its status.")
  33
  34     def mouseDoubleClickEvent(self, event):
  35         index = self.currentIndex()
  36         model = index.model()
  37         status_index = model.index(index.row(), MEMBERSHIP_STATUS_COLUMN, index.parent())
  38         status_data = status_index.data().toString()
  39         server_status_data = model.index(index.row(), SERVER_MEMBERSHIP_STATUS_COLUMN, index.parent()).data().toString()
  40         node_index = model.index(index.row(), NAME_COLUMN, index.parent())
  41         node_data = node_index.data().toString()
  42
  43         # This is a hostname
  44         if status_data == user_status['in']:
  45             model.setData(status_index, QString(user_status['remove']))
  46         elif status_data == user_status['out']:
  47             model.setData(status_index, QString(user_status['add']))
  48         elif status_data in (user_status['add'], user_status['remove']):
  49             if server_status_data == user_status["in"]:
  50                 model.setData(status_index, QString(user_status['in']))
  51             else:
  52                 model.setData(status_index, QString(user_status['out']))
  53
  54         model.emit(SIGNAL("dataChanged(QModelIndex, QModelIndex)"), node_index, node_index)
  55
  56     def currentChanged(self, current, previous):
  57         model = current.model()
  58         node_index = model.index(current.row(), 0, current.parent())
  59         node_data = node_index.data().toString()
  60         self.emit(SIGNAL('hostnameClicked(QString)'), node_data)
  61
  62 class UserModel(QStandardItemModel):
  63     def __init__(self, rows=0, columns=4, parent=None):
  64          QStandardItemModel.__init__(self, rows, columns, parent)
  65
  66     def updateModel(self, sliceRec):
  67         self.clear()
  68
  69         added_persons = []
  70         slice_persons = []
  71
  72         if sliceRec:
  73             #for pi in sliceRec.get_field("PI", default=[]):
  74             #    name = str(pi)
  75             #    if not name in added_persons:
  76             #         slice_persons.append({"name": name, "role": "PI", "member": user_status["in"]})
  77             #         added_persons.append(name)
  78
  79             for researcher in sliceRec.get_field("researcher", default=[]):
  80                 name = str(researcher)
  81                 if not name in added_persons:
  82                      slice_persons.append({"name": name, "role": "researcher", "member": user_status["in"]})
  83                      added_persons.append(name)
  84
  85         i=1
  86         while (os.path.exists(config.getAuthorityListFile(i))):
  87             rec = self.readUserRecord(i)
  88             if rec:
  89                 name = str(rec.get_name())
  90                 if not name in added_persons:
  91                     slice_persons.append({"name": name, "role": "", "member": user_status["out"]})
  92                     added_persons.append(name)
  93             i=i+1
  94
  95         rootItem = self.invisibleRootItem()
  96
  97         for person in slice_persons:
  98             rootItem.appendRow([QStandardItem(QString(person["name"])),
  99                                #QStandardItem(QString(person["role"])),
 100                                QStandardItem(QString(person["member"])),
 101                                QStandardItem(QString(person["member"]))])
 102
 103         headers = QStringList() << "User Name" << "Status" << "ServerStatus"
 104         self.setHorizontalHeaderLabels(headers)
 105
 106     def updateRecord(self, slicerec):
 107         change = False
 108
 109         item = self.invisibleRootItem()
 110         children = item.rowCount()
 111         for row in range(0, children):
 112             childName = str(item.child(row, NAME_COLUMN).data(Qt.DisplayRole).toString())
 113             childStatus = str(item.child(row, MEMBERSHIP_STATUS_COLUMN).data(Qt.DisplayRole).toString())
 114
 115             if (childStatus == user_status['add']):
 116                 researcher = slicerec.get_field("researcher", [])
 117                 researcher.append(childName)
 118                 slicerec["researcher"] = researcher
 119                 change = True
 120             elif (childStatus == user_status['remove']):
 121                 if childName in slicerec.get_field("PI"):
 122                      slicerec.get_field("PI").remove(childName)
 123                 if childName in slicerec.get_field("researcher"):
 124                      slicerec.get_field("researcher").remove(childName)
 125                 change = True
 126
 127         return change
 128
 129     def readUserRecord(self, i):
 130         rec_file = config.getAuthorityListFile(i)
 131         if os.path.exists(rec_file):
 132             xml = open(rec_file).read()
 133             rec = UserRecord()
 134             rec.load_from_string(xml)
 135             return rec
 136         return None
 137
 138 class UsersWidget(QWidget):
 139     def __init__(self, parent):
 140         QWidget.__init__(self, parent)
 141
 142         self.process = SfiProcess(self)
 143
 144         self.slicename = QLabel("", self)
 145         self.updateSliceName()
 146         self.slicename.setScaledContents(False)
 147         searchlabel = QLabel ("Search: ", self)
 148         searchlabel.setScaledContents(False)
 149         searchbox = QLineEdit(self)
 150         searchbox.setAttribute(Qt.WA_MacShowFocusRect, 0)
 151
 152         toplayout = QHBoxLayout()
 153         toplayout.addWidget(self.slicename, 0, Qt.AlignLeft)
 154         toplayout.addStretch()
 155         toplayout.addWidget(searchlabel, 0, Qt.AlignRight)
 156         toplayout.addWidget(searchbox, 0, Qt.AlignRight)
 157
 158         self.userView = UserView()
 159
 160         refresh = QPushButton("Refresh", self)
 161         refresh.setSizePolicy(QSizePolicy.Maximum, QSizePolicy.Maximum)
 162         submit = QPushButton("Submit", self)
 163         submit.setSizePolicy(QSizePolicy.Maximum, QSizePolicy.Maximum)
 164
 165         bottomlayout = QHBoxLayout()
 166         bottomlayout.addWidget(refresh, 0, Qt.AlignLeft)
 167         bottomlayout.addStretch()
 168         bottomlayout.addWidget(submit, 0, Qt.AlignRight)
 169
 170         layout = QVBoxLayout()
 171         layout.addLayout(toplayout)
 172         layout.addWidget(self.userView)
 173         layout.addLayout(bottomlayout)
 174         self.setLayout(layout)
 175         self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
 176
 177         self.userModel = UserModel(parent=self)
 178
 179         self.connect(refresh, SIGNAL('clicked()'), self.refresh)
 180         self.connect(submit, SIGNAL('clicked()'), self.submit)
 181
 182         self.updateView()
 183
 184     def submitFinished(self):
 185         self.setStatus("<font color='green'>Slice data submitted.</font>")
 186         QTimer.singleShot(1000, self.refresh)
 187
 188     def getSliceRecordFinished(self):
 189         self.setStatus("<font color='green'>Authority data refreshed.</font>", timeout=5000)
 190         self.refreshAuthority()
 191
 192     def getAuthorityRecordFinished(self):
 193         self.setStatus("<font color='green'>Slice data refreshed.</font>", timeout=5000)
 194         self.updateView()
 195         #self.parent().signalAll("usersUpdated")
 196
 197     def readSliceRecord(self):
 198         rec_file = config.getSliceRecordFile()
 199         if os.path.exists(rec_file):
 200             xml = open(rec_file).read()
 201             rec = SliceRecord()
 202             rec.load_from_string(xml)
 203             return rec
 204         return None
 205
 206     def readAuthorityRecord(self):
 207         rec_file = config.getAuthorityRecordFile()
 208         if os.path.exists(rec_file):
 209             xml = open(rec_file).read()
 210             rec = AuthorityRecord()
 211             rec.load_from_string(xml)
 212             return rec
 213         return None
 214
 215     def setStatus(self, msg, timeout=None):
 216         self.parent().setStatus(msg, timeout)
 217
 218     def checkRunningProcess(self):
 219         if self.process.isRunning():
 220             self.setStatus("<font color='red'>There is already a process running. Please wait.</font>")
 221             return True
 222         return False
 223
 224     def submit(self):
 225         if self.checkRunningProcess():
 226             return
 227
 228         rec = self.readSliceRecord()
 229         change = self.userModel.updateRecord(rec)
 230
 231         if not change:
 232             self.setStatus("<font color=red>No change in slice data. Not submitting!</font>", timeout=3000)
 233             return
 234
 235         rec_file = config.getSliceRecordFile()
 236         file(rec_file, "w").write(rec.save_to_string())
 237
 238         self.disconnect(self.process, SIGNAL('finished()'), self.getAuthorityRecordFinished)
 239         self.connect(self.process, SIGNAL('finished()'), self.submitFinished)
 240
 241         self.process.updateRecord(rec_file)
 242         self.setStatus("Sending slice record. This will take some time...")
 243
 244     def refresh(self):
 245         if not config.getSlice():
 246             self.setStatus("<font color='red'>Slice not set yet!</font>")
 247             return
 248
 249         if self.process.isRunning():
 250             self.setStatus("<font color='red'>There is already a process running. Please wait.</font>")
 251             return
 252
 253         self.disconnect(self.process, SIGNAL('finished()'), self.submitFinished)
 254         self.connect(self.process, SIGNAL('finished()'), self.getSliceRecordFinished)
 255
 256         self.process.getSliceRecord()
 257         self.setStatus("Refreshing slice record. This will take some time...")
 258
 259     def refreshAuthority(self):
 260         self.disconnect(self.process, SIGNAL('finished()'), self.getSliceRecordFinished)
 261         self.connect(self.process, SIGNAL('finished()'), self.getAuthorityRecordFinished)
 262
 263         self.process.listRecords(config.getAuthority(), "user", config.getAuthorityListFile())
 264         self.setStatus("Refreshing user records. This will take some time...")
 265
 266     def updateView(self):
 267         sliceRec = self.readSliceRecord()
 268
 269         if not sliceRec:
 270             # wait until we've resolved the slicerecord before displaying
 271             # anything to the user.
 272             self.userModel.clear()
 273         else:
 274             self.userModel.updateModel(sliceRec)
 275
 276         self.userView.setModel(self.userModel)
 277         self.userView.hideColumn(SERVER_MEMBERSHIP_STATUS_COLUMN)
 278         self.userView.resizeColumnToContents(0)
 279
 280     def updateSliceName(self):
 281         self.slicename.setText("Slice : %s" % (config.getSlice() or "None"))
 282
 283
 284
 285
 286 class UserScreen(SfaScreen):
 287     def __init__(self, parent):
 288         SfaScreen.__init__(self, parent)
 289
 290         slice = UsersWidget(self)
 291         self.init(slice, "Users", "OneLab SFA crawler")
 292
 293     def configurationChanged(self):
 294         self.widget.updateSliceName()
 295         self.widget.updateView()
 296
 297