functions/Copy-DbaDataCollector.ps1

function Copy-DbaDataCollector {
    <#
        .SYNOPSIS
            Migrates user SQL Data Collector collection sets. SQL Data Collector configuration is on the agenda, but it's hard.
 
        .DESCRIPTION
            By default, all data collector objects are migrated. If the object already exists on the destination, it will be skipped unless -Force is used.
 
            The -CollectionSet parameter is auto-populated for command-line completion and can be used to copy only specific objects.
 
        .PARAMETER Source
            Source SQL Server. You must have sysadmin access and server version must be SQL Server version 2008 or higher.
 
        .PARAMETER SourceSqlCredential
            Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential)
 
        .PARAMETER Destination
            Destination Sql Server. You must have sysadmin access and server version must be SQL Server version 2008 or higher.
 
        .PARAMETER DestinationSqlCredential
            Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential)
 
        .PARAMETER CollectionSet
            The collection set(s) to process - this list is auto-populated from the server. If unspecified, all collection sets will be processed.
 
        .PARAMETER ExcludeCollectionSet
            The collection set(s) to exclude - this list is auto-populated from the server
 
        .PARAMETER NoServerReconfig
            Upcoming parameter to enable server reconfiguration
 
        .PARAMETER WhatIf
            Shows what would happen if the command were to run. No actions are actually performed.
 
        .PARAMETER Confirm
            Prompts you for confirmation before executing any changing operations within the command.
 
        .PARAMETER Force
            If collection sets exists on destination server, it will be dropped and recreated.
 
        .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
            Tags: Migration,DataCollection
            Author: Chrissy LeMaire (@cl), netnerds.net
            Requires: sysadmin access on SQL Servers
 
            Website: https://dbatools.io
            Copyright: (C) Chrissy LeMaire, clemaire@gmail.com
            License: MIT https://opensource.org/licenses/MIT
 
        .LINK
            https://dbatools.io/Copy-DbaDataCollector
 
        .EXAMPLE
            PS C:\> Copy-DbaDataCollector -Source sqlserver2014a -Destination sqlcluster
 
            Copies all Data Collector Objects and Configurations from sqlserver2014a to sqlcluster, using Windows credentials.
 
        .EXAMPLE
            PS C:\> Copy-DbaDataCollector -Source sqlserver2014a -Destination sqlcluster -SourceSqlCredential $cred
 
            Copies all Data Collector Objects and Configurations from sqlserver2014a to sqlcluster, using SQL credentials for sqlserver2014a and Windows credentials for sqlcluster.
 
        .EXAMPLE
            PS C:\> Copy-DbaDataCollector -Source sqlserver2014a -Destination sqlcluster -WhatIf
 
            Shows what would happen if the command were executed.
 
        .EXAMPLE
            PS C:\> Copy-DbaDataCollector -Source sqlserver2014a -Destination sqlcluster -CollectionSet 'Server Activity', 'Table Usage Analysis'
 
            Copies two Collection Sets, Server Activity and Table Usage Analysis, from sqlserver2014a to sqlcluster.
    #>

    [CmdletBinding(DefaultParameterSetName = "Default", SupportsShouldProcess = $true)]
    param (
        [parameter(Mandatory)]
        [DbaInstanceParameter]$Source,
        [PSCredential]
        $SourceSqlCredential,
        [parameter(Mandatory)]
        [DbaInstanceParameter[]]$Destination,
        [PSCredential]
        $DestinationSqlCredential,
        [object[]]$CollectionSet,
        [object[]]$ExcludeCollectionSet,
        [switch]$NoServerReconfig,
        [switch]$Force,
        [Alias('Silent')]
        [switch]$EnableException
    )
    begin {
        try {
            Write-Message -Level Verbose -Message "Connecting to $Source"
            $sourceServer = Connect-SqlInstance -SqlInstance $Source -SqlCredential $SourceSqlCredential -MinimumVersion 10
        }
        catch {
            Stop-Function -Message "Failure" -Category ConnectionError -ErrorRecord $_ -Target $Source
            return
        }
        $sourceSqlConn = $sourceServer.ConnectionContext.SqlConnectionObject
        $sourceSqlStoreConnection = New-Object Microsoft.SqlServer.Management.Sdk.Sfc.SqlStoreConnection $sourceSqlConn
        $sourceStore = New-Object Microsoft.SqlServer.Management.Collector.CollectorConfigStore $sourceSqlStoreConnection
        $configDb = $sourceStore.ScriptAlter().GetScript() | Out-String
        $configDb = $configDb -replace [Regex]::Escape("'$source'"), "'$destReplace'"
    }
    process {
        if (Test-FunctionInterrupt) { return }
        foreach ($destinstance in $Destination) {

            try {
                Write-Message -Level Verbose -Message "Connecting to $destinstance"
                $destServer = Connect-SqlInstance -SqlInstance $destinstance -SqlCredential $DestinationSqlCredential -MinimumVersion 10
            }
            catch {
                Stop-Function -Message "Failure" -Category ConnectionError -ErrorRecord $_ -Target $destinstance -Continue
            }
            if ($NoServerReconfig -eq $false) {
                if ($Pscmdlet.ShouldProcess($destinstance, "Server reconfiguration not yet supported. Only Collection Set migration will be migrated at this time.")) {
                    Write-Message -Level Verbose -Message "Server reconfiguration not yet supported. Only Collection Set migration will be migrated at this time."
                    $NoServerReconfig = $true

            <# for future use when this support is added #>
                    $copyServerConfigStatus = [pscustomobject]@{
                        SourceServer = $sourceServer.Name
                        DestinationServer = $destServer.Name
                        Name         = $userName
                        Type         = "Data Collection Server Config"
                        Status       = "Skipped"
                        Notes        = "Not supported at this time"
                        DateTime     = [DbaDateTime](Get-Date)
                    }
                    $copyServerConfigStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject
                }
            }
            $destSqlConn = $destServer.ConnectionContext.SqlConnectionObject
            $destSqlStoreConnection = New-Object Microsoft.SqlServer.Management.Sdk.Sfc.SqlStoreConnection $destSqlConn
            $destStore = New-Object Microsoft.SqlServer.Management.Collector.CollectorConfigStore $destSqlStoreConnection

            if (!$NoServerReconfig) {
                if ($Pscmdlet.ShouldProcess($destinstance, "Attempting to modify Data Collector configuration")) {
                    try {
                        $sql = "Unknown at this time"
                        $destServer.Query($sql)
                        $destStore.Alter()
                    }
                    catch {
                        $copyServerConfigStatus.Status = "Failed"
                        $copyServerConfigStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject
                        Stop-Function -Message "Issue modifying Data Collector configuration" -Target $destServer -ErrorRecord $_
                    }
                }
            }

            if ($destStore.Enabled -eq $false) {
                Write-Message -Level Verbose -Message "The Data Collector must be setup initially for Collection Sets to be migrated. Setup the Data Collector and try again."
                continue
            }

            $storeCollectionSets = $sourceStore.CollectionSets | Where-Object { $_.IsSystem -eq $false }
            if ($CollectionSet) {
                $storeCollectionSets = $storeCollectionSets | Where-Object Name -In $CollectionSet
            }
            if ($ExcludeCollectionSet) {
                $storeCollectionSets = $storeCollectionSets | Where-Object Name -NotIn $ExcludeCollectionSet
            }

            Write-Message -Level Verbose -Message "Migrating collection sets"
            foreach ($set in $storeCollectionSets) {
                $collectionName = $set.Name

                $copyCollectionSetStatus = [pscustomobject]@{
                    SourceServer = $sourceServer.Name
                    DestinationServer = $destServer.Name
                    Name         = $collectionName
                    Type         = "Collection Set"
                    Status       = $null
                    Notes        = $null
                    DateTime     = [DbaDateTime](Get-Date)
                }

                if ($null -ne $destStore.CollectionSets[$collectionName]) {
                    if ($force -eq $false) {
                        if ($Pscmdlet.ShouldProcess($destinstance, "Collection Set '$collectionName' was skipped because it already exists on $destinstance. Use -Force to drop and recreate")) {
                            Write-Message -Level Verbose -Message "Collection Set '$collectionName' was skipped because it already exists on $destinstance. Use -Force to drop and recreate"

                            $copyCollectionSetStatus.Status = "Skipped"
                            $copyCollectionSetStatus.Notes = "Already exists"
                            $copyCollectionSetStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject
                        }
                        continue
                    }
                    else {
                        if ($Pscmdlet.ShouldProcess($destinstance, "Attempting to drop $collectionName")) {
                            Write-Message -Level Verbose -Message "Collection Set '$collectionName' exists on $destinstance"
                            Write-Message -Level Verbose -Message "Force specified. Dropping $collectionName."

                            try {
                                $destStore.CollectionSets[$collectionName].Drop()
                            }
                            catch {
                                $copyCollectionSetStatus.Status = "Failed to drop on destination"
                                $copyCollectionSetStatus.Notes = (Get-ErrorMessage -Record $_)
                                $copyCollectionSetStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject
                                Stop-Function -Message "Issue dropping collection" -Target $collectionName -ErrorRecord $_ -Continue
                            }
                        }
                    }
                }

                if ($Pscmdlet.ShouldProcess($destinstance, "Migrating collection set $collectionName")) {
                    try {
                        $sql = $set.ScriptCreate().GetScript() | Out-String
                        $sql = $sql -replace [Regex]::Escape("'$source'"), "'$destinstance'"
                        Write-Message -Level Debug -Message $sql
                        Write-Message -Level Verbose -Message "Migrating collection set $collectionName"
                        $destServer.Query($sql)

                        $copyCollectionSetStatus.Status = "Successful"
                        $copyCollectionSetStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject
                    }
                    catch {
                        $copyCollectionSetStatus.Status = "Failed to create collection"
                        $copyCollectionSetStatus.Notes = (Get-ErrorMessage -Record $_)

                        Stop-Function -Message "Issue creating collection set" -Target $collectionName -ErrorRecord $_
                    }

                    try {
                        if ($set.IsRunning) {
                            Write-Message -Level Verbose -Message "Starting collection set $collectionName"
                            $destStore.CollectionSets.Refresh()
                            $destStore.CollectionSets[$collectionName].Start()
                        }

                        $copyCollectionSetStatus.Status = "Successful started Collection"
                        $copyCollectionSetStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject
                    }
                    catch {
                        $copyCollectionSetStatus.Status = "Failed to start collection"
                        $copyCollectionSetStatus.Notes = (Get-ErrorMessage -Record $_)
                        $copyCollectionSetStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject

                        Stop-Function -Message "Issue starting collection set" -Target $collectionName -ErrorRecord $_
                    }
                }
            }
        }
    }
    end {
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -EnableException:$false -Alias Copy-SqlDataCollector
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -EnableException:$false -Alias Copy-DbaSqlDataCollector
        if (Test-FunctionInterrupt) { return }
    }
}