} // getComparable()
public int Compare(Object o1, Object o2)
{
if (o1 == null && o2 == null)
{
return(0);
}
if (o1 == null)
{
return(-1);
}
if (o2 == null)
{
return(1);
}
try
{
CsDate dt1 = toDate(o1);
CsDate dt2 = toDate(o2);
return(CsDate.CompareTo(dt1, dt2));
}
catch (Exception e)
{
logger.error("Could not compare {} and {}", o1, o2);
throw new CsSystemException(e.Message);
}
} // Compare()
} // Compare()
public static CsDate toDate(object value)
{
CsDate result = null;
if (value == null)
{
result = null;
}
else if (value is CsDate)
{
result = (CsDate)value;
}
else if (value is Calendar)
{
// https://www.tutorialspoint.com/java/util/calendar_gettime.htm
result = new CsDate(DateTime.Now);
}
else if (value is String)
{
result = convertFromString((String)value);
}
else if (value is CsNumber)
{
result = convertFromNumber((CsNumber)value);
}
if (result == null)
{
logger.warn("Could not convert '{}' to date, returning null", value);
}
return(result);
}
} // convertFromString()
private static CsDate convertFromNumber(CsNumber value)
{
CsNumber numberValue = (CsNumber)value;
long long_value = numberValue.asLong();
CsNumber n = new CsNumber(long_value);
String string_value = n.ToString();
// test if the number is actually a format of the type yyyyMMdd
if (string_value.Length == 8 && (string_value.StartsWith("1") || string_value.StartsWith("2")))
{
try
{
string format = "yyyyMMdd";
DateTimeFormatInfo dtfi = CsDateUtils.createDateFormat(format);
return(new CsDate(string_value, format, dtfi));
}
catch (Exception e)
{
// do nothing, proceed to next method of conversion
}
}
// test if the number is actually a format of the type yyMMdd
if (string_value.Length == 6)
{
try
{
string format = "yyMMdd";
DateTimeFormatInfo dtfi = CsDateUtils.createDateFormat(format);
return(new CsDate(string_value, format, dtfi));
}
#pragma warning disable 0168
catch (Exception e)
{
// do nothing, proceed to next method of conversion
}
#pragma warning restore 0168
}
if (long_value > 5000000)
{
// Java: this number is most probably amount of milliseconds since 1970
// C#: this number is most probably amount of milliseconds since 1900
CsDate d = new CsDate(DateTime.Now);
return(new CsDate(long_value));
}
else
{
// Java: this number is most probably amount of milliseconds since 1970
// C#: this number is most probably amount of milliseconds since 1900
return(new CsDate(long_value * 1000 * 60 * 60 * 24));
}
} // convertFromNumber()
} // _Time_Comparable_Impl_
public static IComparable <object> getComparable(object o)
{
CsDate dt1 = toDate(o);
return(new _Time_Comparable_Impl_(_instance, dt1));
} // getComparable()
public _Time_Comparable_Impl_(IComparer <object> instance_arg, CsDate dt1_arg)
{
_dt1_ = dt1_arg;
_instance_ = instance_arg;
} // constructor
