public IntCronField(CronFieldType type, CronFieldKind kind, DateField dateField, string spec, params int[] values)
: base(type, kind, dateField, spec)
{
Values = values;
// For day field 31 matches last day of the month
_matchLastDay = type == CronFieldType.Day && kind != CronFieldKind.AnyValue && values.Contains(31);
}
public CronFieldListItem(int fieldPos, string part)
{
FieldPos = fieldPos;
this.part = part;
values = new int[2] {
-1, -1
};
if (part.IndexOf("0/") == 0)
{
Type = CronFieldType.Periodic;
string s = part.Replace("0/", "");
if (!int.TryParse(s, out values[0]))
{
throw new ArgumentException("Periodic value assigned is not numeric");
}
}
else if (part.IndexOf('-') > 0)
{
Type = CronFieldType.Range;
string[] array = part.Split('-');
values[0] = CronUtils.ConvertCronFieldToNumber(fieldPos, array[0]);
values[1] = CronUtils.ConvertCronFieldToNumber(fieldPos, array[1]);
}
else if (part == "*")
{
Type = CronFieldType.Wildcard;
values[0] = 0;
}
else
{
Type = CronFieldType.Single;
values[0] = CronUtils.ConvertCronFieldToNumber(fieldPos, part);
}
}
public CronField(CronFieldType type, CronFieldKind kind, DateField dateField, string spec)
{
Type = type;
Kind = kind;
DateField = dateField;
Spec = spec;
}
public static DateField GetDateField(CronFieldType cronType)
{
_dateFieldsByCronFieldType = _dateFieldsByCronFieldType ??
new DateField[] { DateFields.Year, DateFields.Month, DateFields.Day, DateFields.Day,
DateFields.Hour, DateFields.Minute };
return(_dateFieldsByCronFieldType[(int)cronType]);
}
static string[][] GetNameLists(CronFieldType type)
{
switch (type)
{
case CronFieldType.DayOfWeek: return(new[] { _dayNames, _dayNamesShort });
case CronFieldType.Month: return(new[] { _monthNames, _monthNamesShort });
default: return(null);
}
}
private static int[] GetListForDivisor(CronFieldType type, int div)
{
switch (type)
{
case CronFieldType.Day: return(GetDivisibles(1, 31, div));
case CronFieldType.Hours: return(GetDivisibles(0, 23, div));
case CronFieldType.Minutes: return(GetDivisibles(0, 59, div));
case CronFieldType.Month: return(GetDivisibles(1, 12, div));
case CronFieldType.Year: return(GetDivisibles(2001, 2100, div));
default:
Check(false, "Invalid CRON field, / is not allowed for field type " + type);
return(null); //never happens
}
}
public static IntCronField ParseIntField(CronFieldType type, string spec)
{
try {
var dateField = GetDateField(type);
var nameLists = GetNameLists(type);
if (spec == "*")
{
return(new IntCronField(type, CronFieldKind.AnyValue, dateField, spec));
}
if (spec.Contains(','))
{
var values = spec.Split(',').Select(s => ParseValue(s, nameLists)).ToArray();
return(new IntCronField(type, CronFieldKind.List, dateField, spec, values));
}
if (spec.Contains('-'))
{
var values = spec.Split('-').Select(s => ParseValue(s, nameLists)).ToArray();
Check(values.Length == 2, "Invalid cron list spec: '{0}', expected only 2 values separated by dash.", spec);
Check(values[0] < values[1], "Invalid cron range spec: '{0}', first item must less than the second.", spec);
return(new IntCronField(type, CronFieldKind.Range, dateField, spec, values[0], values[1]));
}
if (spec.Contains("/"))
{
var parts = spec.Split('/');
Check(parts.Length == 2, "Invalid '/' CRON field: " + spec);
var p0 = parts[0];
Check(p0 == string.Empty || p0 == "*", "Invalid '/' CRON field, expected * as first symbol: " + spec);
int div;
Check(int.TryParse(parts[1], out div), "Invalid CRON field, expected int after / :" + spec);
Check(div > 1 && div < 30, "Invalid divisor value in / CRON field, expected 2..30 :" + spec);
var values = GetListForDivisor(type, div);
return(new IntCronField(type, CronFieldKind.List, dateField, spec, values));
}
var value = ParseValue(spec, nameLists);
return(new IntCronField(type, CronFieldKind.Value, dateField, spec, value));
} catch (Exception ex) {
ex.Data["CronField"] = spec;
ex.Data["CronFieldType"] = type;
throw;
}
}//method
public bool Validate(CronFieldType cft)
{
switch (cft)
{
case CronFieldType.Minutes:
return(Array.TrueForAll <int>(vals, delegate(int i) { return i >= 0 && i <= 59; }));
case CronFieldType.Hours:
return(Array.TrueForAll <int>(vals, delegate(int i) { return i >= 0 && i <= 23; }));
case CronFieldType.Days:
return(Array.TrueForAll <int>(vals, delegate(int i) { return i >= 1 && i <= 31; }));
case CronFieldType.Months:
return(Array.TrueForAll <int>(vals, delegate(int i) { return i >= 1 && i <= 12; }));
case CronFieldType.DaysOfWeek:
return(Array.TrueForAll <int>(vals, delegate(int i) { return i >= 0 && i <= 6; }));
default:
break;
}
return(false);
}
private FieldVal ParseCronField(string str, CronFieldType cft)
{
FieldVal res = new FieldVal();
if (string.IsNullOrEmpty(str))
{
throw new ArgumentNullException("A crontab field value cannot be empty.");
}
// Look first for a list of values (e.g. 1,2,3).
if (str.IndexOf(",") > 0)
{
res.vals = Array.ConvertAll <string, int>(str.Split(','), delegate(string s) { return(ParseInt(s)); });
res.Validate(cft);
return(res);
}
// Look for stepping (e.g. */2 = every 2nd).
res.step = 1;
var slashIndex = str.IndexOf("/");
if (slashIndex > 0)
{
res.step = ParseInt(str.Substring(slashIndex + 1));
str = str.Substring(0, slashIndex);
}
// Next, look for wildcard (*).
if (str.Length == 1 && str[0] == '*')
{
res.vals = new int[0];
res.repeating = true;
return(res);
}
// Next, look for a range of values (e.g. 2-10).
var dashIndex = str.IndexOf("-");
if (dashIndex > 0)
{
var first = ParseInt(str.Substring(0, dashIndex));
var last = ParseInt(str.Substring(dashIndex + 1));
if (first >= last)
{
throw new ArgumentException("A crontab field value range must begin with a lower number");
}
res.range = true;
res.vals = new int[] { first, last };
res.Validate(cft);
return(res);
}
// Check for "?" and substitute current time
if (str.Length == 1 && str[0] == '?')
{
DateTime now = DateTime.Now;
int nval = 0;
switch (cft)
{
case CronFieldType.Minutes:
nval = now.Minute;
break;
case CronFieldType.Hours:
nval = now.Hour;
break;
case CronFieldType.Days:
nval = now.Day;
break;
case CronFieldType.Months:
nval = now.Month;
break;
case CronFieldType.DaysOfWeek:
throw new ArgumentException("The fifth parameter representing the day of the week cannot be a '?'.");
default:
break;
}
res.vals = new int[] { nval };
res.step = 0;
res.Validate(cft);
return(res);
}
// Finally, handle the case where there is only one number.
var value = ParseInt(str);
res.vals = new int[] { value };
res.step = 0;
res.Validate(cft);
return(res);
}
private CronFieldBase GetField(CronFieldType type)
{
return(this.fields.First(f => f.CronFieldType == type));
}
public bool Validate(CronFieldType cft)
{
switch (cft)
{
case CronFieldType.Minutes:
return Array.TrueForAll<int>(vals, delegate(int i) { return i >= 0 && i <= 59; });
case CronFieldType.Hours:
return Array.TrueForAll<int>(vals, delegate(int i) { return i >= 0 && i <= 23; });
case CronFieldType.Days:
return Array.TrueForAll<int>(vals, delegate(int i) { return i >= 1 && i <= 31; });
case CronFieldType.Months:
return Array.TrueForAll<int>(vals, delegate(int i) { return i >= 1 && i <= 12; });
case CronFieldType.DaysOfWeek:
return Array.TrueForAll<int>(vals, delegate(int i) { return i >= 0 && i <= 6; });
default:
break;
}
return false;
}
private FieldVal ParseCronField(string str, CronFieldType cft)
{
FieldVal res = new FieldVal();
if (string.IsNullOrEmpty(str))
throw new ArgumentNullException("A crontab field value cannot be empty.");
// Look first for a list of values (e.g. 1,2,3).
if (str.IndexOf(",") > 0)
{
res.vals = Array.ConvertAll<string, int>(str.Split(','), delegate(string s) { return ParseInt(s); });
res.Validate(cft);
return res;
}
// Look for stepping (e.g. */2 = every 2nd).
res.step = 1;
var slashIndex = str.IndexOf("/");
if (slashIndex > 0)
{
res.step = ParseInt(str.Substring(slashIndex + 1));
str = str.Substring(0, slashIndex);
}
// Next, look for wildcard (*).
if (str.Length == 1 && str[0] == '*')
{
res.vals = new int[0];
res.repeating = true;
return res;
}
// Next, look for a range of values (e.g. 2-10).
var dashIndex = str.IndexOf("-");
if (dashIndex > 0)
{
var first = ParseInt(str.Substring(0, dashIndex));
var last = ParseInt(str.Substring(dashIndex + 1));
if (first >= last)
throw new ArgumentException("A crontab field value range must begin with a lower number");
res.range = true;
res.vals = new int[] { first, last };
res.Validate(cft);
return res;
}
// Check for "?" and substitute current time
if (str.Length == 1 && str[0] == '?')
{
DateTime now = DateTime.Now;
int nval = 0;
switch (cft)
{
case CronFieldType.Minutes:
nval = now.Minute;
break;
case CronFieldType.Hours:
nval = now.Hour;
break;
case CronFieldType.Days:
nval = now.Day;
break;
case CronFieldType.Months:
nval = now.Month;
break;
case CronFieldType.DaysOfWeek:
throw new ArgumentException("The fifth parameter representing the day of the week cannot be a '?'.");
default:
break;
}
res.vals = new int[] { nval };
res.step = 0;
res.Validate(cft);
return res;
}
// Finally, handle the case where there is only one number.
var value = ParseInt(str);
res.vals = new int[] { value };
res.step = 0;
res.Validate(cft);
return res;
}
