Mijalko

Cloudfoundry installation problem

2012-02-03T15:34:00.002+01:00

Installation of Cloudfoundry described at https://github.com/cloudfoundry/vcap currently (2012-03-02) does not work.
I found that following steps can help to install cloudfoundry:

echo "------------installing ruby---------"
apt-get -y install ruby1.9.1-full build-essential
ln -sf /usr/bin/ruby1.9.1 /usr/bin/ruby
apt-get -y install rubygems rubygems1.9.1

echo "------------installing rvm---------"
apt-get -y install build-essential
apt-get -y install curl
apt-get -y install zlib1g-dev libreadline5-dev libssl-dev libxml2-dev
bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer)
source /home/CurrentUsername/.profile


#change CurrentUsername with your username in prev command

echo "------------installing cloudfoudry---------"
bash < <(curl -s -k -B https://raw.github.com/cloudfoundry/vcap/master/setup/install)

gem uninstall rake -v 0.9.2.2

Total Commander and SVN folders synchronization

2012-02-03T14:14:00.000+01:00

Add button to show ignore list

Fill ignore list and turn it on.

Synchronize folders

Add Item to collection if item not exist

2012-01-09T12:55:00.001+01:00

Tnx to Miroslav

So, this is extension methods that enables you to add item in collection if item does not exist already

 public static class CollectionsExtensions
    {
        /// 
        /// Adds item to collection if not exist already.
        /// 
        /// The type of the source.
        /// 
The collection.
        /// 
The element.
        /// 
The comparer.
        /// true if item is added to collection.
        public static bool AddIfNotExist(this ICollection collection, TSource element, Func comparer)
        {
            if (collection == null)
            {
                return false;
            }

            if (collection.Any(comparer))
            {
                return false;
            }
            else
            {
                collection.Add(element);
                return true;
            }
        }

        /// 
        /// Adds item to collection if not exist already.
        /// 
        /// The type of the source.
        /// 
The collection.
        /// 
The element.
        /// true if item is added to collection
        public static bool AddIfNotExist(this ICollection collection, TSource element)
        {
            if (collection == null)
            {
                return false;
            }

            if (collection.Contains(element))
            {
                return false;
            }
            else
            {
                collection.Add(element);
                return true;
            }
        }
    }

Powershell and Atomia Automation Server

2011-12-19T12:51:00.004+01:00

First you need to create class library for CoreApiBasicAuth endpoint (use http://rkeithhill.wordpress.com/2006/11/08/calling-a-wcf-service-from-powershell/ as a help how to do this)

Using this library (for example CoreApiBasicAuth.dll) you can connect to Atomia Automation Server. In following example I created powershell script to list Windows Websites for specific account.

[Reflection.Assembly]::LoadFrom("c:\CoreApiBasicAuth.dll")
$wsHttpBinding = new-object System.ServiceModel.BasicHttpBinding
$wsHttpBinding.Security.Message.ClientCredentialType = [System.ServiceModel.BasicHttpMessageCredentialType]::UserName
$wsHttpBinding.Security.Mode = [System.ServiceModel.BasicHttpSecurityMode]::TransportWithMessageCredential
$endpoint = new-object System.ServiceModel.EndpointAddress("https://provisioning.test.com/CoreAPIBasicAuth.svc")

$coreAPI = new-object CoreApiClient($wsHttpBinding, $endpoint)
$coreAPI.ClientCredentials.UserName.set_UserName("Admin")
$coreAPI.ClientCredentials.UserName.set_Password("Admin")

$Acc = $coreAPI.GetAccount("123456")

#find websites for this account
$pageInfo = New-Object Atomia.Provisioning.Base.PagingInfo 
$strNames = @("CsWindowsWebsite")
$pageInfo.PageSize = 10
$pageInfo.PageNumber = 0
$res = $coreAPI.FindServicesByNamesForAccount($Acc.AccountId, $strNames, [ref] $pageInfo)
$sites = $res | ForEach-Object {$_.properties} | Where-Object {$_.Name -eq "Hostname"} | Select-Object propStringValue
Write-Output $sites

$coreAPI.Close()

Using powershell to get IIS worker process

2011-11-23T14:44:00.001+01:00

Preparation:

Enable execution of powershell scripts with command:

 Set-ExecutionPolicy RemoteSigned

Import module for IIS

  import-module webadministration

Now you should be able to see new drive (IIS)

  get-psdrive

Now, to see worker process for specific pool you only need to execute:

   dir 'IIS:\AppPools\myAppPoolName\WorkerProcesses'

To list all process IDs use:

   dir IIS:\AppPools | Get-ChildItem | Get-ChildItem | Format-Table -AutoSize  processId, appPoolName

Free SQL profiler for SQL Express

2011-10-12T07:49:00.002+01:00

http://anjlab.com/en/projects/opensource/sqlprofiler

Export Certificates using Powershell

2011-09-07T09:49:00.003+01:00

dir cert:\LocalMachine\My | Where-Object { $_.hasPrivateKey } | Foreach-Object { [system.IO.file]::WriteAllBytes("$home\$($_.SubjectName).pfx", ($_.Export('PFX', '')) ) }

Free partition magic tool

2011-09-07T09:48:00.000+01:00

http://gparted.sourceforge.net/

Convert amr file to mp3

2011-09-01T15:56:00.002+01:00

Some android applications may save audio files in amr format. To convert amr file to mp3 file you can use this tool

gitignore for c# projects:

2011-06-24T19:40:00.000+01:00

https://gist.github.com/893266

ID4175: The issuer of the security token was not recognized...

2011-04-11T08:37:00.000+01:00

This error is thrown by sts.
Obviously, it is error in this section:

<issuerNameRegistry type="Microsoft.IdentityModel.Tokens.ConfigurationBasedIssuerNameRegistry, Microsoft.IdentityModel, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
<trustedIssuers>
  <add name="CN = test" thumbprint="12 34 56 78 89 45 45 45 45 45 44 44 44" />
</trustedIssuers>
</issuerNameRegistry>

At first look thubprint of certificate was OK. But when I open it in hex editor there was some characters that was not visible in text editor. I fix this and everything was OK. :)

Sql Server Management Studio extensions

2011-04-06T13:34:00.000+01:00

Great management studio extensions:

http://www.ssmstoolspack.com/

Flatten objects tree structure

2011-03-29T13:09:00.000+01:00

Flatten objects tree structure:

protected IEnumerable<T> Flatten<T>(IEnumerable<T> elements, Func<T, IEnumerable<T>> childrenFunc)
        {
            List<T> result = new List<T>();
            result.AddRange(elements);
            
            IEnumerable<T> children = elements.SelectMany(childrenFunc);
            
            if (children.Count() == 0)
            {
                return result;
            }

            result.AddRange(this.Flatten<T>(children, childrenFunc));

            return result;
        }

Free alternative for .NET Reflector

2011-03-07T12:27:00.002+01:00

http://wiki.sharpdevelop.net/ilspy.ashx

Powershell: Find certificate by thumbprint

2010-12-07T10:14:00.001+01:00

cd cert:
dir -recurse | where {$_.Thumbprint -eq "84e2c011ad0c1b3f6d32f651069bba184c426158"} | Format-List -property *

Check how many open DB connection we have

2010-10-18T08:59:00.000+01:00

SELECT SPID, STATUS, PROGRAM_NAME, LOGINAME=RTRIM(LOGINAME), HOSTNAME, CMD
FROM MASTER.DBO.SYSPROCESSES
WHERE DB_NAME(DBID) = 'MyDb' AND DBID != 0

Unlock locked android

2010-09-04T21:29:00.004+01:00

My child was playing with my HTC tattoo and he was try too many unsuccessful unlock patterns. When I try to unlock my phone it was asked for Google account credentials. But whatever I have try to enter I got a message:
"too many pattern attempts" and "invalid username or password"
The only solution that left was to do a factory reset :,(
And finally I found solution:
Enter your google username (with @gmail.com) and "null" as a password

Letujete na Tasosu?

2010-07-01T00:00:00.002+01:00

Ukoliko planirate letovanje na Tasosu obavezno posetite sajt:

http://booking-thassos.com/

See cookie size in fiddler

2010-05-05T13:44:00.003+01:00

To see cookie size in fiddler do the following:

Choose from menu: Rules | Customize Rules
Add "oSession["ui-customcolumn"] = oSession.oRequest["Cookie"].Length.ToString();" as the last line in method OnBeforeRequest

Cookie size will be the last column

SQL query optimization tip

2010-04-08T14:18:00.003+01:00

If you change your query in management studio query window like this:


SET STATISTICS TIME ON

Go

SET STATISTICS IO ON

Go

[Your query]

you can check Messages. There are lot of useful information there (timers, seeks for each table). Using this and using execution plan you can better optimize your sql queries.

C# Expression trees

2010-03-05T15:24:00.001+01:00

Here you can find excellent article about expression trees

WCF and Performance Counters

2010-02-10T13:58:00.004+01:00

To enable counters for WCF services add following line


<diagnostics performanceCounters="All" />

at the xml element


<system.serviceModel>

in web.config file or in machine config file (for all services on your machine).

To see counters data start from command line:


perfmon.exe

Open performance monitor and add counter from: ServiceModelService

Fiddler and ASP.NET Development Server

2010-01-18T13:12:00.002+01:00

ASP.NET development server only accept urls that starts with localhost. Therefor when your request comes from fiddler it become 127.0.0.1 and ASP.NET development server will reject it.
To enable fiddler to work open from menu TOOLS | Hosts and enter


127.0.0.1 localhost

Now, every address from 127.0.0.1 will become localhost just what ASP.NET development servers like :)

Write c# code instead of JavaScript

2010-01-15T18:29:00.000+01:00

Very, very interesting

http://sharpkit.net/

Flatten array of arrays using linq

2009-12-23T16:47:00.010+01:00

If you have list of object that contains list of other objects and you want to collect all children in one list linq can make it simple. For example:


List<int> listOfInt = new List<int>();
List<List<int>> listOfListOfInts = new List<List<int>>();
foreach (List<int> ints in listOfListOfInts)
{
    foreach (int i in ints)
    {
        listOfInt.Add(i);
    }
}

but using linq the following statements become:


List<int> listOfInt = listOfListOfInts.SelectMany(ints => ints).ToList();