private static ScheduleCommandData ParseScheduleInput(string input, out string[] commandUserInput)
{
if (string.IsNullOrEmpty(input) || string.IsNullOrEmpty(ScheduleJobCommand) || AvailableJobsToSchedule == null)
{
throw new ParseCommandException("missing arguments");
}
ScheduleCommandData output = new ScheduleCommandData();
commandUserInput = input.Split(' ');
if (commandUserInput.Length > 4 || commandUserInput.Length < 2)
{
throw new ParseCommandException($"unsupported number of arguments: {commandUserInput.Length - 1}");
}
if (commandUserInput[0] != ScheduleJobCommand)
{
throw new ParseCommandException($"unknown command: {commandUserInput[0]}");
}
if (!AvailableJobsToSchedule.ContainsKey(commandUserInput[1]))
{
throw new ParseCommandException($"unsupported job type: {commandUserInput[1]}");
}
output.JobName = AvailableJobsToSchedule[commandUserInput[1]];
output.Argument = string.Empty;
output.Priority = JobPriority.Normal;
if (commandUserInput.Length == 3)
{
JobPriority?priority = GetPriority(commandUserInput[2]);
if (priority.HasValue)
{
output.Priority = priority.Value;
return(output);
}
}
if (commandUserInput.Length > 2)
{
output.Argument = commandUserInput[2];
}
if (commandUserInput.Length > 3)
{
JobPriority?priority = GetPriority(commandUserInput[3]);
if (priority.HasValue)
{
output.Priority = priority.Value;
}
else
{
throw new ParseCommandException($"unknown priority: {commandUserInput[3]}");
}
}
return(output);
}
/// <summary>
/// Schedules job extracted from user input
/// (in case of incorrect format, error message should be displyed in console)
/// </summary>
/// <param name="lowerCaseInput">user input</param>
public static void ProcessScheduleCommand(string lowerCaseInput)
{
try
{
string[] commandUserInput;
ScheduleCommandData data = ParseScheduleInput(lowerCaseInput, out commandUserInput);
ScheduleParams param = new ScheduleParams(data.Priority, data.Argument, commandUserInput);
Job processedJob = JobResolver.Resolve(param, data.JobName);
JobScheduler.ScheduleJob(processedJob);
}
catch (ParseCommandException ex)
{
Console.WriteLine(ex.Message);
}
}