functions/Get-DbaCmConnection.ps1

function Get-DbaCmConnection {
    <#
    .SYNOPSIS
    Retrieves windows management connections from the cache
 
    .DESCRIPTION
    Retrieves windows management connections from the cache
 
    .PARAMETER ComputerName
    The computername to ComputerName for.
 
    .PARAMETER UserName
    Username on credentials to look for. Will not find connections using the default windows credentials.
 
    .PARAMETER EnableException
    By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.
    This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting.
    Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch.
     
    .NOTES
    Author: Fred Winmann (@FredWeinmann)
    Tags: ComputerManagement
 
    Website: https://dbatools.io
    Copyright: (C) Chrissy LeMaire, clemaire@gmail.com
    License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0
 
    .LINK
    https://dbatools.io/Get-DbaCmConnection
 
    .EXAMPLE
    Get-DbaCmConnection
 
    List all cached connections.
 
    .EXAMPLE
    Get-DbaCmConnection sql2014
 
    List the cached connection - if any - to the server sql2014.
 
    .EXAMPLE
    Get-DbaCmConnection -UserName "*charles*"
 
    List all cached connection that use a username containing "charles" as default or override credentials.
    #>


    [CmdletBinding()]
    param
    (
        [Parameter(Position = 0, ValueFromPipeline = $true)]
        [Alias('Filter')]
        [String[]]
        $ComputerName = "*",

        [String]
        $UserName = "*",

        [switch]
        [Alias('Silent')]$EnableException
    )

    BEGIN {
        Write-Message -Level InternalComment -Message "Starting"
        Write-Message -Level Verbose -Message "Bound parameters: $($PSBoundParameters.Keys -join ", ")"
    }
    PROCESS {
        foreach ($name in $ComputerName) {
            Write-Message -Level VeryVerbose -Message "Processing search. ComputerName: '$name' | Username: '$UserName'"
            ([Sqlcollaborative.Dbatools.Connection.ConnectionHost]::Connections.Values | Where-Object { ($_.ComputerName -like $name) -and ($_.Credentials.UserName -like $UserName) })
        }
    }
    END {
        Write-Message -Level InternalComment -Message "Ending"
    }
}