branching: if-else

CreateJobV4.cs

private Job CreateJob(order order)
{
    var errorMessage = ValidateComputer(order.ComputerName);
    if (errorMessage != "") 
    {
        return new Job()
        {
            ActivationTime = order.ClientLocalStartTime,
            ComputerName = order.ComputerName,
            orderId = order.Id,
	    Status = errorMessage,
        };
    }
    
    var computer = GetComputer(order.ComputerName, order.CustomerId);
    computer.CustomerId = GetCustomerId(order.CustomerId, computer.CustomerId);
    var serverAddress = GetServerAddress(order.ComputerName, computer.CustomerId);
    var deploymentType = GetDeploymentType(order.MaterialNumber, computer.CustomerId);

    return new Job()
    {
        ActivationTime = order.ClientLocalStartTime,
        ComputerName = order.ComputerName,
        OrderId = order.Id,
    	JobActions = CreateJobActions(deploymentType, order, serverAddress, computer),
        Status = "created",
    }
}