functions/Switch-JS7ControllerInstance.ps1

function Switch-JS7ControllerInstance
{
<#
.SYNOPSIS
Switches the roles of the active and standby JS7 Controller instances in a cluster
 
.DESCRIPTION
During switch-over the active Controller instance switches to standby mode and vice versa.
 
The following REST Web Service API resources are used:
 
* /controller/cluster/switchover
 
.PARAMETER AuditComment
Specifies a free text that indicates the reason for the current intervention, e.g. "business requirement", "maintenance window" etc.
 
The Audit Comment is visible from the Audit Log view of the JOC Cockpit.
This parameter is not mandatory. However, the JOC Cockpit can be configured to require Audit Log comments for all interventions.
 
.PARAMETER AuditTimeSpent
Specifies the duration in minutes that the current intervention required.
 
This information is shown in the Audit Log view. It can be useful when integrated
with a ticket system that logs the time spent on interventions with JS7.
 
.PARAMETER AuditTicketLink
Specifies a URL to a ticket system that keeps track of any interventions performed for JS7.
 
This information is shown in the Audit Log view of JOC Cockpit.
It can be useful when integrated with a ticket system that logs interventions with JS7.
 
.EXAMPLE
Switch-JS7ControllerInstance
 
Switches the roles of the active and standby JS7 Controller instances:
The active instance switches to standby mode and vice versa.
 
.LINK
about_JS7
 
#>

param
(
    [Parameter(Mandatory=$False,ValueFromPipeline=$False,ValueFromPipelinebyPropertyName=$True)]
    [string] $AuditComment,
    [Parameter(Mandatory=$False,ValueFromPipeline=$False,ValueFromPipelinebyPropertyName=$True)]
    [int] $AuditTimeSpent,
    [Parameter(Mandatory=$False,ValueFromPipeline=$False,ValueFromPipelinebyPropertyName=$True)]
    [Uri] $AuditTicketLink
)
    Begin
    {
        Approve-JS7Command $MyInvocation.MyCommand
        $stopWatch = Start-JS7StopWatch

        if ( !$AuditComment -and ( $AuditTimeSpent -or $AuditTicketLink ) )
        {
            throw "$($MyInvocation.MyCommand.Name): Audit Log comment required, use parameter -AuditComment if one of the parameters -AuditTimeSpent or -AuditTicketLink is used"
        }
    }

    Process
    {
        $body = New-Object PSObject
        Add-Member -Membertype NoteProperty -Name 'controllerId' -value $script:jsWebService.ControllerId -InputObject $body

        if ( $AuditComment -or $AuditTimeSpent -or $AuditTicketLink )
        {
            $objAuditLog = New-Object PSObject
            Add-Member -Membertype NoteProperty -Name 'comment' -value $AuditComment -InputObject $objAuditLog

            if ( $AuditTimeSpent )
            {
                Add-Member -Membertype NoteProperty -Name 'timeSpent' -value $AuditTimeSpent -InputObject $objAuditLog
            }

            if ( $AuditTicketLink )
            {
                Add-Member -Membertype NoteProperty -Name 'ticketLink' -value $AuditTicketLink -InputObject $objAuditLog
            }

            Add-Member -Membertype NoteProperty -Name 'auditLog' -value $objAuditLog -InputObject $body
        }

        [string] $requestBody = $body | ConvertTo-Json -Depth 100
        $response = Invoke-JS7WebRequest -Path '/controller/cluster/switchover' -Body $requestBody

        if ( $response.StatusCode -eq 200 )
        {
            $requestResult = ( $response.Content | ConvertFrom-JSON )

            if ( !$requestResult.ok )
            {
                throw ( $response | Format-List -Force | Out-String )
            }

            Write-Verbose ".. $($MyInvocation.MyCommand.Name): command resource for JS7 Controller: $resource"
        } else {
            throw ( $response | Format-List -Force | Out-String )
        }
    }

    End
    {
        Trace-JS7StopWatch -CommandName $MyInvocation.MyCommand.Name -StopWatch $stopWatch
        Update-JS7Session
    }
}