biz.dfch.PS.Azure.ServiceBus.Client

1.0.2.20160609

Get-MessageBody.ps1

                                function Get-MessageBody {

<#

.SYNOPSIS

Get the message body from a Service Bus Message.

.DESCRIPTION

Get the message body from a Service Bus Message.

.OUTPUTS

This Cmdlet returns the Body as [String] from the MessageFactory Message object. On failure it returns $null.

.INPUTS

See PARAMETER section for a description of input parameters.

.EXAMPLE

Get the message body from a Service Bus Message.

PS > Get-Message | Get-MessageBody;

I am a message body from ServiceBus with an arbitrary content.

Attention: 

Throws an exception if the body already consumed (called more then once).

Exception: "The message body cannot be read multiple times. To reuse it store the value after reading."

#>

[CmdletBinding(

    HelpURI = 'http://dfch.biz/biz/dfch/PS/AzureServiceBus/Client/'

    ,

    SupportsShouldProcess = $true

    ,

    ConfirmImpact = "Low"

)]

[OutputType([String])]

Param 

(

    # [Required] Service Bus Message

    [Parameter(Mandatory = $true, ValueFromPipeline = $true, Position = 0)]

    [alias("Message")]

    [Microsoft.ServiceBus.Messaging.BrokeredMessage] $InputObject

)

BEGIN 

{

    $datBegin = [datetime]::Now;

    [string] $fn = $MyInvocation.MyCommand.Name;

    Log-Debug $fn ("CALL.") -fac 1;

}

# BEGIN 

PROCESS 

{

[boolean] $fReturn = $false;

try 

{

    # Parameter validation

    #N/A

    # Get ValueFromPipeline

    $OutputObject = @();    

    foreach($Object in $InputObject) {

        if($PSCmdlet.ShouldProcess($Object)) {

            # Retry handling

            $Retry = 2;

            $RetryInterval = 1;

            for($c = 0; $c -le $Retry; $c++)

            {

                try

                {

                    # Get Message Body

                    $OutputParameter = Invoke-GenericMethod -InputObject $Object -MethodName 'GetBody' -GenericType 'String';

                    break;

                }

                catch

                {

                    # Throw execption

                    if ( $_.Exception.Message -match 'The message body cannot be read multiple times.' )

                    {

                        $msg = $_.Exception.Message;

                        $e = New-CustomErrorRecord -m $msg -cat InvalidData -o $Object;

                        $PSCmdlet.ThrowTerminatingError($e);

                    }

                    Log-Debug $fn ("[{0}/{1}] Retrying operation [{2}]" -f $c, $Retry, $fn);

                    Start-Sleep -Seconds $RetryInterval;

                    $RetryInterval *= 2;

                    continue;

                }

            }

            $OutputObject += $OutputParameter;

            $fReturn = $true;

        } # if

    } # foreach

    # Set output depending is ValueFromPipeline

    if ( $OutputObject.Count -gt 1 )

    {

        $OutputParameter = $OutputObject[0];

    }

    else

    {

        $OutputParameter = $OutputObject;

    }

}

catch 

{

    if($gotoSuccess -eq $_.Exception.Message) 

    {

            $fReturn = $true;

    } 

    else 

    {

        [string] $ErrorText = "catch [$($_.FullyQualifiedErrorId)]";

        $ErrorText += (($_ | fl * -Force) | Out-String);

        $ErrorText += (($_.Exception | fl * -Force) | Out-String);

        $ErrorText += (Get-PSCallStack | Out-String);

        if($_.Exception -is [System.Net.WebException]) 

        {

            Log-Critical $fn "Login to Uri '$Uri' with Username '$Username' FAILED [$_].";

            Log-Debug $fn $ErrorText -fac 3;

        }

        else 

        {

            Log-Error $fn $ErrorText -fac 3;

            if($gotoError -eq $_.Exception.Message) 

            {

                Log-Error $fn $e.Exception.Message;

                $PSCmdlet.ThrowTerminatingError($e);

            } 

            elseif($gotoFailure -ne $_.Exception.Message) 

            { 

                Write-Verbose ("$fn`n$ErrorText"); 

            } 

            else 

            {

                # N/A

            }

        }

        $fReturn = $false;

        $OutputParameter = $null;

    }

}

finally 

{

    # Clean up

    # N/A

}

return $OutputParameter;

}

# PROCESS

END 

{

    $datEnd = [datetime]::Now;

    Log-Debug -fn $fn -msg ("RET. fReturn: [{0}]. Execution time: [{1}]ms. Started: [{2}]." -f $fReturn, ($datEnd - $datBegin).TotalMilliseconds, $datBegin.ToString('yyyy-MM-dd HH:mm:ss.fffzzz')) -fac 2;

}

# END

} # function

if($MyInvocation.ScriptName) { Export-ModuleMember -Function Get-MessageBody; } 

# 

# Copyright 2015 d-fens GmbH

# 

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

# 

# http://www.apache.org/licenses/LICENSE-2.0

# 

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

# 

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# SIG # End signature block