Class: Invoracle::Infra::IostatParser

Inherits:
Object
  • Object
show all
Defined in:
lib/invoracle/infra/iostat_parser.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ IostatParser

Returns a new instance of IostatParser.



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# File 'lib/invoracle/infra/iostat_parser.rb', line 3

def initialize()
  sIostatx = ''
  dIostatx = {}
end

Instance Method Details

#getDeviceNames ⇒ Object 



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# File 'lib/invoracle/infra/iostat_parser.rb', line 7

def getDeviceNames()
  dDeviceNames = {}
  if @dIostatx.has_key?('devices')
    @dIostatx['devices'].each do |dDevice|
      if dDevice.has_key?('Id')
        sDevice = dDevice['Id']
        dDeviceNames[sDevice] = 1
      end
    end
  end
  aDeviceNames = dDeviceNames.keys.sort
  return aDeviceNames
end

#getIostatValue(sType = nil, sField = nil, sAggregateFirst = nil, sAggregateSecond = nil) ⇒ Object 



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# File 'lib/invoracle/infra/iostat_parser.rb', line 20

def getIostatValue(sType=nil,sField=nil,sAggregateFirst=nil,sAggregateSecond=nil)
  if sType == 'device'
    aDevices = @dIostatx['devices']
    return self.getItemsValue(aDevices,sField,sAggregateFirst,sAggregateSecond)
  elsif sType == 'cpu'
    aCpus = @dIostatx['cpus']
    return self.getItemsValue(aCpus,sField,sAggregateFirst,sAggregateSecond)  
  end
  return -1.0
end

#getItemsValue(aItems = [], sField = nil, sAggregateFirst = nil, sAggregateSecond = nil) ⇒ Object 



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# File 'lib/invoracle/infra/iostat_parser.rb', line 30

def getItemsValue(aItems=[],sField=nil,sAggregateFirst=nil,sAggregateSecond=nil)
  dItemsData  = {}
  aItems.each do |dItem|
    sItemName = dItem['Id']
    dItem.each do |sKey,fVal|
      dItemsData[sItemName]       ||= {}
      dItemsData[sItemName][sKey] ||= {}
      dKeyInfo = dItemsData[sItemName][sKey]
      if ! dKeyInfo.has_key?('min') || fVal < dKeyInfo['min']
        dKeyInfo['min'] = fVal
      end
      if ! dKeyInfo.has_key?('max') || fVal > dKeyInfo['max']
        dKeyInfo['max'] = fVal
      end
      if ! dKeyInfo.has_key?('sum')
        dKeyInfo['sum'] = fVal
      else
        dKeyInfo['sum'] += fVal
      end
      if ! dKeyInfo.has_key?('num')
        dKeyInfo['num'] = 1
      else
        dKeyInfo['num'] += 1
      end
      dItemsData[sItemName][sKey] = dKeyInfo
    end
  end
  bValReturn = false
  fValReturn = 0.0
  if sAggregateFirst == 'max' && sAggregateSecond == 'max'
    dItemsData.each do |sItemName,dItemInfo|
      if dItemInfo.has_key?(sField)
        if dItemInfo[sField].has_key?('max')
          if dItemInfo[sField]['max'] > fValReturn
            fValReturn = dItemInfo[sField]['max']
          end
        end
      end
    end
  elsif sAggregateFirst == 'min' && sAggregateSecond == 'min'
    dItemsData.each do |sItemName,dItemInfo|
      if dItemInfo[sField].has_key?('min')
        if ! bValReturn
          fValReturn = dItemInfo[sField]['min']
          bValReturn = true
        elsif dItemInfo[sField]['min'] < fValReturn
          fValReturn = dItemInfo[sField]['min']
        end
      end
    end
  end
  return fValReturn
end

#loadIostatxRaw(sIostatx = nil) ⇒ Object 



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# File 'lib/invoracle/infra/iostat_parser.rb', line 83

def loadIostatxRaw(sIostatx=nil)
  aCpus     = []
  aDevices  = []
  aIostatx  = sIostatx.split("\n")
  sStage    = ''
  aCols     = []
  iLine     = 0
  iCpuCount = 0
  sDevName  = ''
  aIostatx.each do |sLine|
    sLine.strip!
    next unless sLine.length>0
    iLine += 1
    aItems = sLine.split(" ")
    if sLine =~ /^avg-cpu:/
      aItems.shift
      aCols  = aItems
      sStage = 'cpu'
      iCpuCount += 1
      next
    elsif sLine =~ /^Device:/
      aItems.shift
      aCols  = aItems
      sStage = 'device'
      next
    elsif sStage == ''
      next
    elsif sStage == 'cpu'
      if aItems.length == aCols.length
        dCpu = {'Id' => 'cpu' + iCpuCount.to_s}
        aCols.each_with_index do |sCol,iIdx|
          dCpu[sCol] = aItems[iIdx].to_f
        end
        aCpus.push(dCpu)
      else
        raise ArgumentError, "E_BAD_MATCH_CPU"
      end
    elsif sStage == 'device'
      if aItems.length == aCols.length + 1
        sDevice = aItems.shift
        dDevice = {'Id' => sDevice}
        aCols.each_with_index do |sCol,iIdx|
          dDevice[sCol] = aItems[iIdx].to_f
        end
        aDevices.push(dDevice)
        sDevName = ''
      elsif aItems.length == 1
        sDevName = aItems[0]
        next
      elsif aItems.length == aCols.length && sDevName.length > 0
        dDevice = {'Id' => sDevName}
        aCols.each_with_index do |sCol,iIdx|
          dDevice[sCol] = aItems[iIdx].to_f
        end
        aDevices.push(dDevice)
        sDevName = ''
      else
        raise ArgumentError, "E_BAD_MATCH_DEVICE"
      end
    end
  end
  dIostatx    =  {
    'cpus'    => aCpus,
    'devices' => aDevices
  }
  @dIostatx = dIostatx
  return dIostatx
end