public static async Task CreateBatchPoolIfNotExist()

in SQL-Hybrid-Cloud-Toolkit/Components/ADP/ADPControl/BatchActivity.cs [103:156]
43 lines of code
4 McCabe index (conditional complexity)

        public static async Task CreateBatchPoolIfNotExist(BatchClient batchClient, VirtualMachineConfiguration vmConfiguration, string vnetSubnetId)
        {
            Console.WriteLine("Creating pool [{0}]...", PoolId);

            try
            {
                CloudPool pool = batchClient.PoolOperations.CreatePool(
                    poolId: PoolId,
                    targetDedicatedComputeNodes: PoolNodeCount,
                    virtualMachineSize: PoolVMSize,
                    virtualMachineConfiguration: vmConfiguration);

                // Specify the application and version to install on the compute nodes
                pool.ApplicationPackageReferences = new List<ApplicationPackageReference>
                {
                    new ApplicationPackageReference {
                        ApplicationId = AppPackageName,
                        Version = AppPackageVersion }
                };

                // Initial the first data disk for each VM in the pool
                StartTask startTask = new StartTask("cmd /c Powershell -command \"Get-Disk | Where partitionstyle -eq 'raw' | sort number | Select-Object -first 1 |" +
                    " Initialize-Disk -PartitionStyle MBR -PassThru | New-Partition -UseMaximumSize -DriveLetter F |" +
                    " Format-Volume -FileSystem NTFS -NewFileSystemLabel data1 -Confirm:$false -Force\"");

                startTask.MaxTaskRetryCount = 1;
                startTask.UserIdentity = new UserIdentity(new AutoUserSpecification(AutoUserScope.Pool, ElevationLevel.Admin));
                startTask.WaitForSuccess = true;

                pool.StartTask = startTask;

                // Create the Pool within the vnet subnet if it's specified.
                if (vnetSubnetId != null)
                {
                    pool.NetworkConfiguration = new NetworkConfiguration();
                    pool.NetworkConfiguration.SubnetId = vnetSubnetId;
                }

                await pool.CommitAsync();
                await pool.RefreshAsync();
            }
            catch (BatchException be)
            {
                // Accept the specific error code PoolExists as that is expected if the pool already exists
                if (be.RequestInformation?.BatchError?.Code == BatchErrorCodeStrings.PoolExists)
                {
                    Console.WriteLine("The pool {0} already existed when we tried to create it", PoolId);
                }
                else
                {
                    throw; // Any other exception is unexpected
                }
            }
        }