/// <summary>
///
/// </summary>
/// <param name="services"></param>
public CrontabService(IServiceProvider services)
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
var options = services.GetService <CrontabOptions>();
if (options == null)
{
options = new CrontabOptions();
}
this.logger = services.GetService <ILogger>();
var types = GetTypeInfos(options);
var list = new List <CrontabExecutor>();
foreach (var type in types)
{
foreach (var method in type.DeclaredMethods)
{
var attribute = method.GetCustomAttribute <CrontabScheduleAttribute>();
if (attribute != null)
{
if (string.IsNullOrEmpty(attribute.Name))
{
throw new CustomAttributeFormatException("Crontab name is empty");
}
var arr = attribute.Schedule.Split('|');
if (arr.Length == 0)
{
throw new CustomAttributeFormatException($"Crontab '{attribute.Name}' does not have any schedule");
}
var schedules = new CrontabSchedule[arr.Length];
for (int i = 0; i < arr.Length; i++)
{
if (CrontabSchedule.TryParse(arr[i], out CrontabSchedule schedule))
{
schedules[i] = schedule;
}
else
{
throw new CustomAttributeFormatException($"Crontab '{attribute.Name}' schedule '{arr[i]}' format error");
}
}
var name = attribute.Name;
if (string.IsNullOrEmpty(name))
{
name = method.Name;
}
var item = new CrontabExecutor(name, services, cts.Token, type, method, schedules, attribute.AllowConcurrentExecution, attribute.RunImmediately);
if (!executorDict.ContainsKey(item.Name))
{
executorDict.Add(item.Name, item);
if (attribute.AutoEnable)
{
item.Enable();
}
}
else
{
throw new CustomAttributeFormatException($"Crontab '{item.Name}' name is duplicate");
}
}
}
}
var dt = DateTime.Now;
dt = new DateTime(dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, 0);
var next = dt.AddMinutes(1);
var due = Convert.ToInt32(Math.Ceiling((next - DateTime.Now).TotalMilliseconds));
Task.Factory.StartNew(async() => {
try {
await Task.Delay(due, cts.Token);
Execute();
}
catch (Exception ex) {
if (logger != null)
{
logger.LogError(ex, "Execute error");
}
}
}, cts.Token);
}
/// <summary>
/// Try to parse the value for the schedule
/// </summary>
/// <param name="value"></param>
/// <param name="schedule"></param>
/// <returns></returns>
public static bool TryParse(string value, out CrontabSchedule schedule)
{
schedule = null;
if (string.IsNullOrEmpty(value))
{
return(false);
}
string[] array = value.Split(Separator, StringSplitOptions.RemoveEmptyEntries);
if (array.Length == 0)
{
return(false);
}
var v1 = array[0];
if (CrontabValueMinute.TryParse(v1, out CrontabValueMinute minute))
{
CrontabValueHour hour = null;
CrontabValueDay day = null;
CrontabValueMonth month = null;
CrontabValueWeek week = null;
if (array.Length >= 2)
{
if (!CrontabValueHour.TryParse(array[1], out hour))
{
return(false);
}
}
if (array.Length >= 3)
{
if (!CrontabValueDay.TryParse(array[2], out day))
{
return(false);
}
}
if (array.Length >= 4)
{
if (!CrontabValueMonth.TryParse(array[3], out month))
{
return(false);
}
}
if (array.Length >= 5)
{
if (!CrontabValueWeek.TryParse(array[4], out week))
{
return(false);
}
}
if (array.Length >= 6)
{
return(false);
}
var timeGroup = new CrontabValueHourMinuteGroup(minute, hour);
var dateGroup = new CrontabValueMonthDayGroup(day, month);
schedule = new CrontabSchedule(value, timeGroup, dateGroup, week);
return(true);
}
else if (CrontabValueTimeRange.TryParse(v1, out CrontabValueTimeRange timeRange))
{
CrontabValueDay day = null;
CrontabValueMonth month = null;
CrontabValueWeek week = null;
if (array.Length >= 2)
{
if (!CrontabValueDay.TryParse(array[1], out day))
{
return(false);
}
}
if (array.Length >= 3)
{
if (!CrontabValueMonth.TryParse(array[2], out month))
{
return(false);
}
}
if (array.Length >= 4)
{
if (!CrontabValueWeek.TryParse(array[3], out week))
{
return(false);
}
}
if (array.Length >= 5)
{
return(false);
}
var timeGroup = new CrontabValueTimeRangeGroup(timeRange);
var dateGroup = new CrontabValueMonthDayGroup(day, month);
schedule = new CrontabSchedule(value, timeGroup, dateGroup, week);
return(true);
}
else
{
return(false);
}
}
