GetDatalakeStoreBetter.ps1

#run once then comment out
#Login-AzureRmAccount

$subscriptionName = ""
$ResourceGroupName = ""
$location = ""
$dataLakeStoreName = ""
$ErrorActionPreference = 'Continue'

Select-AzureRmSubscription -SubscriptionName $subscriptionName

Write-Host "Step 2 - Configure Resource Group" -ForegroundColor White -BackgroundColor DarkGreen
try {
    $CheckResourceGroupExists = Get-AzureRmResourceGroup -Name $ResourceGroupName
}
catch {
    Write-Host "oh dear" -ForegroundColor Black -BackgroundColor DarkRed
    throw
}
if ($CheckResourceGroupExists -eq $false) {
    "Resource Group doesn't exist. Creating..."
    New-AzureRmResourceGroup -Name $ResourceGroupName -Location $location
}
elseif ($CheckResourceGroupExists -eq $true) {
    "Resource Group exists."
}
Write-Host "Step 3 - Configure Data Lake Store Account" -ForegroundColor White -BackgroundColor DarkGreen
 try {
        $CheckDataLakeStoreAccountExists = Test-AzureRmDataLakeStoreAccount -Name $dataLakeStoreName -ErrorAction $ErrorActionPreference
    }
    catch { 
        if ($Error[0].Exception.Message -like "% reference not set to an instance of an %") { 
            Write-Host ("DataLakeStore Account {0} not found, creating" -f $dataLakeStoreName)
        }
        else {
            throw ("Could not determine if Datalake Store Account already exists`n{0}" -f $Error[0])
        }
    }
    if (($null -eq $CheckDataLakeStoreAccountExists) -or ($CheckDataLakeStoreAccountExists -eq $false)) {
		try{
        Write-Host "Creating Azure Data Lake Store Account" -ForegroundColor White -BackgroundColor DarkCyan
        New-AzureRmDataLakeStoreAccount -ResourceGroupName $resourceGroupName -Name $dataLakeStoreName -Location $Location -ErrorAction Stop
			}
		catch{
			Write-Host "Failed to deploy Data Lake Store."
			throw $_.Exception
		}
    }

    else {
        Write-Host ("Data Lake Store {0} already exists" -f $dataLakeStoreName)
    }