Use of hash Tables

Similar Questions

• ListField using the hash table

  Hi guys, new here so please, be gentle.

  I was wondering if there is way to a ListField (or something similar) but using a hash instead of a vector table. I searched through the forums without success. And if it is would it be possible to display the incredible list. (List in the hash table and sort by alphabetical order, via the keys)

  The hash table structure K = String (name of player), V = object reader.

  If this can be done using a hash table, is there a way to do this using a vector. So that I could search the data structure for a players name and return the object.

  Sorry if it's confusing or vague. I'm not not used to describe my problems!

  Thank you very much for the help.

  You can also move forward and persist in the hash table, and then build an index using a few stores of SimpleSortingVector who keys in order.

  There are a lot of options... you just need to decide which is best for you.

• Asynchronous tasks, hash tables, and berries - best way to do this!

  I'm working with a colleague on a script that will deploy a very large number of virtual machines to a CSV file.  We started with a purely synchronous process that was very slow by using a simple foreach loop to deploy a virtual machine, configure, a technique of customization and start all this according to the CSV data.

  The obvious bottleneck in the process is waiting for the clone operation is completed before you perform the remaining tasks.  The synchronous line of New - VM in a foreach loop, it is very slow.

  We have since changed to deploy an asynchronous virtual machine using the foreach loop according to the CSV data in a table.  Once the foreach loop started all clonings, he finishes and then a monitoring task loop 'while' kickoff and then perform the rest tasks.  The while loop is based on code from the LucD found here: http://www.lucd.info/2010/02/21/about-async-tasks-the-get-task-cmdlet-and-a-hash-table/ (thanks Luke!).

  Now code Luke used a hash table, so it had to be modified to use the CSV table at best.  Table CSV contained information to perform the configuration and customization of the virtual machine.  I couldn't really find a way for this very cleanly, I'm looking for suggestions on making it a little better.

  Right now I use a simple counting mechanism to browse table to determine if the cloning operation is complete or not.  The problem with this is that if there are 100 VM being cloned, and I walk through the table one row at a time so he could take a long time between the success of the clone operation and monitoring loop actually pick up on it.  It would be nice to have a way to identify which line in the table has data customization and configuration required without walking through it in a loop, rather referring to an item in the table (TaskID) using another method (is this one?-still find such things powershell).

  Here is the modified version of the code of Luke:

  # $csv is the array in question with the required data.
   
  # Used to count which line in the array
  $csvline = 0
   
  # Count all the running tasks to feed into the while loop
  $tasks = $csv | %{$_.TaskID} | ?{$_ -match "Task"}
  $runningTasks = $tasks | measure | %{$_.count}
   
  while($runningTasks -gt 0){
   
  # Completion Meter
  $percomplete = (1 / $runningTasks)*100
  Write-Progress -activity 'Waiting for cloning operation to complete' -status 'Please wait...' -percentComplete ($percomplete)
   
  # Here is where it starts to get messy, there has to be a better way than using $csv[$csvline] and walking though
  if ((get-task | select id,state | ?{$_.id -eq $csv[$csvline].TaskId}).state -eq "Success"){
  Set-VM $csv[$csvline].name -NumCpu $csv[$csvline].vcpu -MemoryMB $csv[$csvline].MemoryMB -Description $csv[$csvline].Notes -Confirm:$false
  Get-vm -name $csv[$csvline].name | Get-NetworkAdapter | Set-NetworkAdapter -NetworkName $csv[$csvline].Network -StartConnected:$true -Confirm:$false
  Get-VM $csv[$csvline].name | Start-VM -RunAsync -Confirm:$false
  $csv[$csvline].TaskId = ""
  $runningTasks--
  }
  elseif ((get-task | select id,state | ?{$_.id -eq $csv[$csvline].TaskId}).state -eq "Error"){
  $csv[$csvline].TaskId = ""
  $runningTasks--
  }
   
   
  # Increment $csvline
  $csvline++
   
  # Wash rinse repeat over and over (not very pretty)
  # Reset $CSV array line counter when greater than count of lines (minus 1 because the array/count starts at zero).
  if ($csvline -gt ($csv.count - 1)){
  $csvline = 0
  }
   
  # Slow down the runningTasks loop since we are waiting for cloning operations to complete.
  # IMPACT: If you deploy 100 VM's it could take up to 200 seconds AFTER a VM is finished cloning before being noticed by the while loop
  Start-Sleep -Seconds 2
  }
  
  
  

  It would be nice to create a Get-task monitoring loop who does not walk in the table.  But shoot any 'Sucess' ful tasknames and determine which line in the table of $csv it is (using the TaskId element).

  Is it possible to do another nesting a foreach ($line in $csv) inside the Get task monitoring loop and compare the TaskId values?  (It's perhaps faster without worrying - have not yet tested).

  I hope that I have explained things clearly enough.

  Thanks for your time.

  Andy

  Andy, have a look at the thread called error with Get-OsCutomizationNicMapping, he does something similar to what you want to do I guess.

  Inside the loop of Import-Csv, the new virtual machine is created in Async and the Id of the task as well as some specific values of the CSV stored in the part of the value of the hash table.

  Later, these values are used to configure the new virtual machine further.

• Possible to develop a chain of the variable inside a literal hash table?

  Attempt to run together-qadcomputer

  together-qadcomputer $adserver - ObjectAttributes @{$VARIABLENAME}

  When I do that - I get the error: Missing '=' operator after the literal hash key.

  
  The string variable contains the equivalent of the data pairs = of value that works when the entries manually.

  $VARIABLENAME = "' edsvaVar1"= $valeur1;"edsvaVar2"= $valeur2;"edsvaVar3'= $Value3 '.

  When I read the $VARIABLENAME, I see the values that I expect.  I want the same effect of in the literal hash required for the cmdlet set-qadcomputer when you use the @ {BOM} that supports several pairs of value.

  Possible?

  ARS 6.9

  There are two ways to do this.  Add command-line string and then use invoke-expression not at my peak, I think it is the correct command, I used this in a prior cultures and when just debugging print any line to ensure that the expansion works well.  The other option is to use a hash table to store the settings of command and a third, I just thought that everything is instead of create a variable string place the attribute pairs in a table, I'm sure it will work also.  If you can only use a string and then use the invoke-expression cmdlet.

• How to create a table of tree using a hash map

  Hi, let's say that I have given, I have a hash map as below
  
  HashMap < String, arraylist < String > > data = new HashMap < String, arraylist < String > > ();
  
  
  How to recover the data on the user interface of the page using the tree map
  
  view shud be somethug as
  

  APAC
  EUROPEAN UNION
  USA

  if I click on APAC it shud show me the list of countries in APAC, even for remaiing.
  
  can someone help me please in this requirement with a code example
  
  Thank you very much

  Hello

  you create a tree model, not a hash table. Take a look at this: http://myfaces.apache.org/trinidad/trinidad-api/apidocs/org/apache/myfaces/trinidad/model/ChildPropertyTreeModel.html. If you have a hashMap then this will show you how to convert it to a template which can be used with a map of the tree

  Frank

• PageContext.forwardimmediatly works not when the hash table is used.

  Hello
  
  I try to use as below:
  
  HashMap hm = new HashMap (1);
  HM.put ("conc_called", "Yes");
  
  pageContext.forwardImmediately ("OA.jsp?page=/XXX/xxPG",
  NULL,
  OAWebBeanConstants.KEEP_MENU_CONTEXT,
  NULL,
  GMC
  true,
  "N");
  
  But I get an error message indicating that the method does not exist. Any suggestion would be appreciated.
  
  Thank you
  PK

  Make sure the hash table is of the type com.sun.java.util.collections.HashMap and not java.util.HashMap

• Hash table returns null

  It's the stumping me. I add a key and a value in a hash table, pass in the key and retrieve the value. Basic enough, but when I go to retrieve the value a second time (after the restart of the application), it returns null.

  If it isn't exactly the code that would be the basic scheme:

  class A
  {
       private static Hashtable table = new Hashtable();
  
       public static Object getObject(Class clazz)
       }
            return A.table.get(clazz);
       }
  
       public static void setObject(Class clazz, Object obj)
       }
            A.table.put(clazz, obj);
       }
  
       //Code stuff...
  }
  
  class B
  {
       public static void main(String[] args)
       {
            A.setObject(C.class, new C());
            Object obj = A.getObject(C.class); //This works
       }
  
       //Code stuff...
  }
  
  class C
  {
       //Code stuff...
  }
  

  What happens on the 9550 Simulator and is fixed after restarting the Simulator but work always and only the first time through. If the app is closed, then reopened, then it returns null, even if the hash table was always the same items.

  Ah. When you run the application a second time, he rebuilt serializers to persistent store. Unfortunately, your objects of the class are new instances, so that they cannot be used as persistent hash keys. I suggest you use class names as keys rather than objects of class themselves.

• Returns a copy of the hash table

  I have problems by returning a copy of a hash that is normally stored in the persistent store table.

  final class SyncCentres {
      private static Hashtable syncCentres;
      private static PersistentObject persist;
      private static final long ID=0xdfeab99e040a223aL;
  
      static{
          persist=PersistentStore.getPersistentObject(ID);
          syncCentres=(Hashtable)persist.getContents();
          synchronized(persist){
              if(syncCentres==null){
                  syncCentres=new Hashtable(4);
                  persist.setContents(syncCentres);
                  persist.commit();
              }
          }
      }
  
      static Hashtable getSyncCentres(){
          return syncCentres;
      }
  
  } // Class
  

  When I get the hash table in another class by using the static method.

  Hashtable hash=SyncCentres.getSyncCentres();
  

  It turns out that it is not a copy. Change the hash variable will edit the SyncCentres class as well. Is this normal? How can I get a copy of it?

  Java, copy and pass the reference by value, not the object.
  See
  http://www.Yoda.arachsys.com/Java/passing.html
  or
  http://www.JavaWorld.com/JavaWorld/javaqa/2000-05/03-QA-0526-pass.html
  If you want a true copy of the hash table you need to clone and each of its objects.
  You can also copy all objects to a new hash table, but these are always references to the same objects as in the first hash table.

• Hash table type

  Hello

  I'm trying to sort a hastable that contains the key and values.

  The keys are New york, los angles, Texas, port Aerizona

  And values are 60.123, 34.3434, 56.4544, 67.565, 56.7878

  Now, I want to sort the hash table based on the values which is lesser in value.

  I tried comparer class using vector simplesorting, but I can only adjust the values but the keys remains unchanged in its position.

  Please help me how to sort hastable with keys and values

  I want the output of this title

  34,3434 losangles

  Texas 56.4544

  port 56.7878

  nwyork 60.123

  aerizona 67.565

  Thanks in advance

  I suggest that you check out all the hastable keys and add to a SimpleSortingVector. You can them iterate thought the sorted keys, by using the keys to retrieve objects from the hash table.

• Defeated by tri-objet in the hash Table

  Hi guys, I need someone who is smarter than me to help please, suck for 3 days now.

  The Script below uses a CSV file as a database to pull total VMs in my vcenter in a bar chart, showing the trend upward. . My boss wants it as soon as possible.

  I can not however the $HT variable to sort by date (sorting and tri-objet doesn't seem to work, sort of NAME or WEEK)

  Need help please, I'm stumped.

  Note, tips cut off when I pasted it, like}'s and impossible.

  # Created by ELMO

  Add-pssnapin VMware.VimAutomation.Core -ErrorAction SilentlyContinue

  $Date = Get-Date -Format yyyy/MM/dd

  $VCRUN = ' Ma Blanked to vCenter '

  $Report = @()

  $USER = "Ma Blanked user"

  $PWD = "Ma Blanked on pwd"

  Write-Host ' Connection to $VCRUN"" "".

  VIserver disconnect -Confirm:$false

  Se connect-VIServer -Server $VCRUN -User $USER -Password $PWD -wa 0

  $VMsON = Get-VM | Where-Object {$_. PowerState -eq "PoweredOn"}

  $VMsTotal = $VMsON. County

     $Row = "" | Select Week, VMsTotal

     $Row . Week = $Date

     $Row . VMsTotal = $VMsTotal

     $Report += $Row

     $ReportView = $Report | Export-Csv -Path C:\PS\Output\VMTrendDB.csv -Append -NoTypeInformation #-Append the data at the bottom of the existing file

  $MyData = Import-Csv C:\PS\Output\VMTrendDB.csv | Select-Object week ,VMsTotal

  $HT = @{}

  foreach ($Data in $MyData) {

  $HT. Add($Data. Week , $Data . VMsTotal)

  }

  $HT = $HT | Tri # read on the Technet site as tri-objet does not change the actual table, but only the output. Thus uses only sort. $HT = HT Triedd | Sort = Name object AND object week type, they do not change my picture on the order of dates

   

  Function Créer-Chart() {

  Param(

    [String] $ChartType ,

  [String]$ChartTitle,

    [String] $FileName ,

  [,String]$XAxisName,

    [String] $YAxisName ,

  [Int]$ChartWidth,

  [Int]$ChartHeight,

  [HashTable]$DataHashTable

  [Sub] [Reflection.Assembly]:LoadWithPartialName ("System.Windows.Forms"( )

  [Sub] [Reflection.Assembly]:LoadWithPartialName ('System.Windows.Forms.DataVisualization'( )

  #Create our graphic object

  $Chart = new-object System.Windows.Forms.DataVisualization.Charting.Chart

  $Chart. Width = $ChartWidth

  $Chart. Height = $ChartHeight

  $Chart. Left = 10

  $Chart. Top = 10

  #Create a chartarea to profit and add this to the table

  $ChartArea = New-Object System.Windows.Forms.DataVisualization.Charting.ChartArea

  $Chart. ChartAreas . Add ($ChartArea)

  [void]$Chart. Series . Add("Data")

  $Chart. ChartAreas [0]. AxisX . Interval of = '1' #Set to 1 (default is auto) and allows all the values of the X axis appears correctly

  $Chart. ChartAreas [0]. AxisX . IsLabelAutoFit = $false;

  $Chart. ChartAreas [0]. AxisX . LabelStyle . Angle = "-45"

  #Add real data to our table

  $Chart. Series ["Data"]. Points . DataBindXY ($DataHashTable. ) Key , $DataHashTable. Values)

  if (($ChartType -eq "Pie") -or ($ChartType -eq "pie")) {

  $ChartArea. AxisX . Title = $XAxisName

  $ChartArea. AxisY . Title = $YAxisName

  $Chart. Series ["Data"]. ChartType = [System.Windows.Forms.DataVisualization.Charting.SeriesChartType]:Pie

  $Chart. Series ['Data'] ['PieLabelStyle'] = "Outside"

  $Chart. Series [« Data »] [« PieLineColor »] = "Black"

  $Chart. Series ['Data'] ['PieDrawingStyle'] = "Concave"

  ($Chart. Series ["Data"]. Points . FindMaxByValue()) ["Exploded"] = $true

  $Chart. Series ["Data"]. Label = ' #VALX = #VALY\n ' # make a X & Y Label of the data in the (useful for Pie chart) plot area (display the axis labels, use: Y = # ControlChars.LF = #VALX)

  elseif (($ChartType -eq "Bar") -or ($ChartType -eq "bar")) {

  #$Chart.Series ["Data"]. Sort ([System.Windows.Forms.DataVisualization.Charting.PointSortOrder]: descendant, "Y")

  $ChartArea. AxisX . Title = $XAxisName

  $ChartArea. AxisY . Title = $YAxisName

  # Find point with max/min values and change color

  $maxValuePoint = $Chart. Series ["Data"]. Points . FindMaxByValue()

  $maxValuePoint. Color = [System.Drawing.Color]:Red

  $minValuePoint = $Chart. Series ["Data"]. Points . FindMinByValue()

  $minValuePoint. Color = [System.Drawing.Color]:Green

  # make the bars in the 3d cylinders

  $Chart. Series [« Data »] [« DrawingStyle »] = "Cylinder"

  $Chart. Series ["Data"]. Label = '#VALY' # Label Y to the data in the plot (useful for the diagram bar) area

  else {

  Write-Host "no Chart Type has been defined. Try again and enter Pie or Bar for the ChartType parameter. The table will be created in the form of standard bar graphic chart for now. " -ForegroundColor Cyan

   

  #Set the title of the chart for the date and time

  $Title = new System.Windows.Forms.DataVisualization.Charting.Title

  $Chart. Titles . Add($Title)

  $Chart. Titles [0]. Text = $ChartTitle

  Graphic to a file #Save

  $FullPath = ($FileName + ".png")

  $Chart. SaveImage ($FullPath 'png'( )

  Write-Host ' saved chart in $FullPath"" " -ForegroundColor Green .

  back $FullPath

   

  Create Chart -ChartType bar ChartTitle - "machines virtual VMware in DC1" -FileName C:\inetpub\ELMO\Graphic\VMsTrendChart -XAxisName 'Date' -YAxisName 'number of VMs' -ChartWidth 800 -ChartHeight 800 -DataHashTable $HT

  All by setting the variable $HT, you define it as a Table of hash, sort or Sort-Object does not work on hash Tables, they work on arrays. Your definition is

  $HT = @ {}

  Use $HT = @)

  Instead, which will create a table and you would be able to define objects and then use the Sort-Object there. With Hash Tables, since they hold any objects you can not sort using Sort-Object.

• Removal of the strings in a hash table

  Hello to all PowerCLI'ers out there.  This is what, I hope, will be an easy one for you guys.

  I built a hash named $hostInfo table that contains information about our VMHosts.  According to the information when displayed in a table format Name, UsedMemoryGB, TotalMemoryGB, FreeMemoryPct.

  The release of "Format-Table" looks like this:

  Name UsedMemoryGB TotalMemoryGB FreeMemoryPct
  ---------                                                               -----------------------             ------------------------                        -----------------------
  us1esx0201.company.local 89.07421875 95.989414215087890625 92.79587700202785441462201182
  us1esx0209.company.local 84.8193359375 95.989414215087890625 88.36321862267168020854706439
  us1esx0211.company.local 83.681640625 95.989414215087890625 87.17798864517570982753322143
  us1esx0205.company.local 83.3310546875 95.989414215087890625 86.81275468644519191613067240
  us1esx0403.company.local 96.3408203125 111.989383697509765625 86.02674390344222204017427325
  us1esx0401.company.local 95.689453125 111.989383697509765625 85.44511092539192491691602221
  US1-vmhesx - p0515.company.local 81.6171875 95.989383697509765625 85.02730651672824441211219264
  us1esx0303.company.local 95.1884765625 111.989383697509765625 84.99776802023479984310570319
  US1-vmhesx - p0512.company.local 81.4462890625 95.9893798828125 84.84927099428367955541142883
  us1esx0113.company.local 81.3212890625 95.98944091796875 84.71899438605549341860543489

  Here is the code snippet that generates the hash table:

  $hostInfo = get-VMHost |

  Select name "

  @{N = "UsedMemoryGB"; E={$_. MemoryUsageGB}} '

  @{N = "TotalMemoryGB"; E={$_. MemoryTotalGB}} '

  @{N = "FreeMemoryPct"; E={(($_. MemoryUsageGB / $_. {{(MemoryTotalGB) * 100)}} |

  Sort-Object-descending - property 'FreeMemoryPct ' | Select - 10 first

  Here is my challenge... I want to remove the '. '. company.local"of all entries in the"Name"column and only let the real host name.  How would I go about iterate the key 'Name' and deleting only this part of the chain?

  Any help is appreciated as always!

  -jSun311

  You can create the table in the right format with just the name of the host if you change the second line of your script in:

  Select @{N = "Name"; E={$_. Name.Split('.') [0]}},

  If you want to change the variable $hostinfo, then you can use:

  $NewHostinfo = $hostinfo | Select-Object - property @{N = "Name"; E={$_. Name.Split('.') [0]}}, UsedMemoryGB, TotalMemoryGB, FreeMemoryPct

• Question on hash tables

  Hello

  I have two questions (single). Maybe someone can give me an answer (single) :-)

  This is the statement:

  $vm | Select Name, @{N = 'IP address'; E={ $_ | Get-VMGuest | {{Select - ExpandProperty IP *}}

  The Questions.

  1. why should I use E in the middle of the statement?

  2 What does E stand for?

  Thank you!

  With @ {} you create a hash table. The N means name and E for the Expression. For example, you could also write:

  $vm | Select Name, @{Name = 'IP address'; Expression = {$_ |} Get-VMGuest | {{Select - ExpandProperty IP *}}

  Best regards, Robert

• With Berkeley DB hash table?

  Hello
  
  I have an application that many key/value in read/write.
  I use a simple Hashmap (ROM) or BDB I (disk/memory).
  Performance with BDB are 5 to 10 or 20 x less than with the Java card.
  Is it possible to have a hash as with Berkeley DB structure (not the I)? The only structure that I use is StoredSortMap.
  
  Thank you
  
  (Sorry for my English ;-)...)

  Hello

  A database of General fresh adds compared to a hash table, it is expected and inevitable.

  No, there is no access based on the EI hash method. You should just use a database, a PrimaryIndex or a StoredSortedMap.

  -mark

• Hash table in Bridge?

  Hello

  will there be any implementation of hash in the script of the bridge that can be used? I looked on the forum and the "Big G", but were all I found a few words on an old AdobeLibrary2.jsx that I can not find in my installation of CS5.

  Thank you

  Konrad

  I thing it has been updated to WasScriptLibrary, I downloaded it here and there not a hash table...

  http://wikisend.com/download/722630/WasScriptLibrary.zip

• Custom hash table object

  Hi I have the following script which should provide an array with the names of vm and the datastorecluster they are on: -.

  $hashT = @ {}

  $vmlist = import-Csv "C:\vmMove\vm3.csv".

  foreach ($vm to $vmlist)

  {

  $vmname = get - vm $vm.name

  $dscname = get-datastorecluster - vm $vm.name

  $hashT = @ {}

  VMNAME = $vmname

  DSCLUSTER = $dscname

  }

  }

  $props = New-Object psobject-property $hashT

  $props | FT - AutoSize

  There are four hosts listed in the csv file, but when I run this table only wrote a line for the last host does not include the first three hosts.  What I am doing wrong? Why can't that get the hash table to view details for all hosts contained in csv.

  I have spent the better part of a day on this and just can't see where I'm wrong - thank you

  If you want just a table with these objects in there, you could do

  $hashT = @)

  $vmlist = import-Csv "C:\vmMove\vm3.csv".

  foreach ($vm to $vmlist)

  {

  $vmname = get - vm $vm.name

  $dscname = get-datastorecluster - vm $vm.name

  $hashT += new-Object PSObject - property @ {}

  VMName = $vm. Name

  DscCluster = $dscname

  }

  }

  $hashT