Public/ConvertTo-MemoryStream.ps1

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<#
    .SYNOPSIS
        Converts an object to a MemoryStream object.
     
    .DESCRIPTION
        Converts an object to a MemoryStream object.
     
    .PARAMETER String
        A string object for conversion.
     
    .EXAMPLE
        $string = 'A string'
        $stream = ConvertTo-MemoryStream -String $string
        $stream.GetType()
 
        IsPublic IsSerial Name BaseType
        -------- -------- ---- --------
        True True MemoryStream System.IO.Stream
 
    .EXAMPLE
        $string = 'A string'
        $stream = $string | ConvertTo-MemoryStream
        $stream.GetType()
 
        IsPublic IsSerial Name BaseType
        -------- -------- ---- --------
        True True MemoryStream System.IO.Stream
 
    .EXAMPLE
        $string1 = 'A string'
        $string2 = 'Another string'
         
        $streams = ConvertTo-MemoryStream -String $string1,$string2
        $streams.GetType()
 
        IsPublic IsSerial Name BaseType
        -------- -------- ---- --------
        True True Object[] System.Array
 
        $streams[0].GetType()
 
        IsPublic IsSerial Name BaseType
        -------- -------- ---- --------
        True True MemoryStream System.IO.Stream
 
    .EXAMPLE
        $string1 = 'A string'
        $string2 = 'Another string'
         
        $streams = $string1,$string2 | ConvertTo-MemoryStream
        $streams.GetType()
 
        IsPublic IsSerial Name BaseType
        -------- -------- ---- --------
        True True Object[] System.Array
 
        $streams[0].GetType()
 
        IsPublic IsSerial Name BaseType
        -------- -------- ---- --------
        True True MemoryStream System.IO.Stream
 
    .OUTPUTS
        [System.IO.MemoryStream[]]
 
    .LINK
        http://convert.readthedocs.io/en/latest/functions/ConvertTo-MemoryStream/
#>

function ConvertTo-MemoryStream
{
    [CmdletBinding(
        DefaultParameterSetName = 'String',
        HelpUri = 'http://convert.readthedocs.io/en/latest/functions/ConvertTo-MemoryStream/')]
    param
    (
        [Parameter(
            Mandatory = $true,
            ValueFromPipeline = $true,
            ValueFromPipelineByPropertyName = $true,
            ParameterSetName = 'String')]
        [ValidateNotNullOrEmpty()]
        [String[]]
        $String
    )

    begin
    {
        $userErrorActionPreference = $ErrorActionPreference
    }
    
    process
    {
        switch ($PSCmdlet.ParameterSetName)
        {
            'String'
            {
                foreach ($s in $string)
                {
                    ConvertFrom-StringToMemoryStream -String $s -ErrorAction $userErrorActionPreference
                }
                break
            }

            default
            {
                Write-Error -Message 'Invalid ParameterSetName' -ErrorAction $userErrorActionPreference
                break
            }
        }
    }
}