ovsdb/ovsdbmonitor/OVEMainWindow.py

   1 # Copyright (c) 2010 Citrix Systems, Inc.
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at:
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 from OVEStandard import *
  16 from OVEConfig import *
  17 from OVEFetch import *
  18 from OVELogger import *
  19 from OVEUtil import *
  20
  21 from OVECommonWindow import *
  22
  23 from Ui_MainWindow import *
  24
  25 class OVEMainWindow(QtGui.QMainWindow, OVECommonWindow):
  26     LOAD_KEY = 'MainWindow/window'
  27     BASE_REF=100000
  28
  29     def __init__(self, app, loadIndex = None):
  30         QtGui.QMainWindow.__init__(self)
  31         self.ui = Ui_MainWindow()
  32         OVECommonWindow.__init__(self, app, loadIndex)
  33
  34     def xon_tabWidget_currentChanged(self, value):
  35         self.deleteCurrentTable()
  36         OVECommonWindow.xon_tabWidget_currentChanged(self, value)
  37
  38     def updateTable(self):
  39         if self.hostUuid == '':
  40             self.setWindowTitle('OVS Database')
  41             self.deleteCurrentTable()
  42             self.statusBar().showMessage('No host selected.  Choose File->Preferences to add a host')
  43         else:
  44             config = OVEConfig.Inst().hostFromUuid(self.hostUuid)
  45             self.setWindowTitle('OVS Database - '+config.get('address', ''))
  46             self.invalidateCurrentTable('Fetching data...')
  47             tabName = self.ui.tabWidget.currentWidget().objectName()
  48             try:
  49                 self.setFetchSkip()
  50                 self.currentRef += 1
  51                 OVEFetch.Inst(self.hostUuid).getTable(self, tabName, self.currentRef)
  52             except Exception, e:
  53                 OVELog("Error fetching data: "+str(e))
  54                 self.invalidateCurrentTable(str(e))
  55
  56     def timerEvent(self, event):
  57         OVECommonWindow.timerEvent(self, event)
  58
  59     def customEvent(self, event):
  60         OVECommonWindow.customEvent(self, event)
  61
  62     def handleFetchEvent(self, ref, values):
  63         tabName = self.ui.tabWidget.currentWidget().objectName()
  64         self.structToTable(getattr(self.ui, str(tabName)+'Table'), values)
  65
  66     def handleFetchFailEvent(self, ref, message):
  67         self.invalidateCurrentTable(str(message))
  68
  69     def structToTable(self, table, values):
  70
  71         table.setUpdatesEnabled(False)
  72         table.setSortingEnabled(False)
  73
  74         for result in values:
  75             rowNum = 0
  76             table.setRowCount(len(result['rows']))
  77             for row in result['rows']:
  78                 table.setColumnCount(len(row))
  79                 colNum=0
  80                 for k in sorted(row.keys()):
  81                     v = row[k]
  82                     headerItem = QtGui.QTableWidgetItem(k)
  83                     table.setHorizontalHeaderItem(colNum, headerItem)
  84                     text = OVEUtil.paramToString(v)
  85                     item = QtGui.QTableWidgetItem(text)
  86                     longText = OVEUtil.paramToLongString(v)
  87                     item.setToolTip(longText)
  88
  89                     table.setItem(rowNum, colNum, item)
  90                     colNum+=1
  91
  92                 rowNum+=1
  93
  94         for i in range(0, table.columnCount()):
  95             table.resizeColumnToContents(i)
  96         for i in range(0, table.rowCount()):
  97             table.resizeRowToContents(i)
  98
  99         # table.setSortingEnabled(True)
 100         table.setUpdatesEnabled(True)
 101
 102         message = 'Updated at '+str(QtCore.QTime.currentTime().toString())
 103         if table.rowCount() == 0:
 104             message += ' - Table is empty'
 105         self.statusBar().showMessage(message)
 106
 107     def invalidateCurrentTable(self, message):
 108         tabName = self.ui.tabWidget.currentWidget().objectName()
 109         self.invalidateTable(getattr(self.ui, str(tabName)+'Table'), message)
 110
 111     def invalidateTable(self, table, message):
 112         table.setUpdatesEnabled(False)
 113         table.setSortingEnabled(False)
 114
 115         for rowNum in range(0, table.rowCount()):
 116             for colNum in range(0, table.columnCount()):
 117                 item = table.takeItem(rowNum, colNum)
 118                 if item is not None:
 119                     item.setForeground(Qt.darkGray)
 120                     table.setItem(rowNum, colNum, item)
 121         self.statusBar().showMessage(message)
 122         # table.setSortingEnabled(True)
 123         table.setUpdatesEnabled(True)
 124
 125     def deleteCurrentTable(self):
 126         tabName = self.ui.tabWidget.currentWidget().objectName()
 127         self.deleteTable(getattr(self.ui, str(tabName)+'Table'))
 128
 129     def deleteTable(self, table):
 130         table.clear()
 131         table.setRowCount(0)
 132         table.setColumnCount(0)
 133
 134     def saveSettings(self, index):
 135         settings = OVECommonWindow.saveSettings(self, index)
 136
 137     def loadSettings(self, index):
 138         settings = OVECommonWindow.loadSettings(self, index)