/// <summary>
/// Converts DateTime to String.
/// </summary>
internal static String ToString(DateTime value, JSonWriterDateFormat format)
{
DateTime valueAsUniversal = value.ToUniversalTime();
long milliseconds = 0;
switch (format)
{
case JSonWriterDateFormat.Default:
return(valueAsUniversal.ToString("u", CultureInfo.InvariantCulture));
case JSonWriterDateFormat.JavaScript:
milliseconds = (valueAsUniversal.Ticks - DateTimeHelper.TicksAt1970) / TimeSpan.TicksPerMillisecond;
// is before 1970-01-01?
if (milliseconds < 0)
{
// use a direct year-month-day constructor, if no hour-minute-second-millisecond set:
if ((valueAsUniversal.Ticks % TimeSpan.TicksPerDay) == 0)
{
return(string.Concat("\\/Date(", valueAsUniversal.Year, ",", valueAsUniversal.Month, ",", valueAsUniversal.Day, ")\\/"));
}
// or full date+time:
return(string.Concat("\\/Date(", valueAsUniversal.Year, ",", valueAsUniversal.Month, ",", valueAsUniversal.Day, ",",
valueAsUniversal.Hour, ",", valueAsUniversal.Minute, ",", valueAsUniversal.Second, ",", valueAsUniversal.Millisecond, ")\\/"));
}
// or by default only miliseconds if date >= 1970-01-01:
return(string.Concat("\\/Date(", milliseconds, ")\\/"));
case JSonWriterDateFormat.UnixEpochSeconds:
// is before 1970-01-01?
if (valueAsUniversal.Ticks < DateTimeHelper.TicksAt1970)
{
throw new FormatException("Date is too early, should be after 1970-01-01");
}
long seconds = (valueAsUniversal.Ticks - DateTimeHelper.TicksAt1970) / TimeSpan.TicksPerSecond;
return(seconds.ToString());
case JSonWriterDateFormat.UnixEpochMilliseconds:
// is before 1970-01-01?
if (valueAsUniversal.Ticks < DateTimeHelper.TicksAt1970)
{
throw new FormatException("Date is too early, should be after 1970-01-01");
}
milliseconds = (valueAsUniversal.Ticks - DateTimeHelper.TicksAt1970) / TimeSpan.TicksPerMillisecond;
return(milliseconds.ToString());
case JSonWriterDateFormat.Ticks:
return(valueAsUniversal.Ticks.ToString());
default:
throw new FormatException(string.Concat("Unsupported format specified (", format, ")"));
}
}
public void WriteMember(string name, DateTime value, JSonWriterDateFormat format)
{
_output.WriteMember(name, value, format);
}
public void WriteValue(DateTime value, JSonWriterDateFormat format)
{
_output.WriteValue(value, format);
}
/// <summary>
/// Gets an indication, if given data-time format requires to be serialized as number or quoted string.
/// </summary>
internal static bool ToQuoteValue(JSonWriterDateFormat format)
{
return format == JSonWriterDateFormat.Default || format == JSonWriterDateFormat.JavaScript;
}
/// <summary>
/// Converts DateTime to String.
/// </summary>
internal static String ToString(DateTime value, JSonWriterDateFormat format)
{
DateTime valueAsUniversal = value.ToUniversalTime();
long milliseconds = 0;
switch (format)
{
case JSonWriterDateFormat.Default:
return valueAsUniversal.ToString("u", CultureInfo.InvariantCulture);
case JSonWriterDateFormat.JavaScript:
milliseconds = (valueAsUniversal.Ticks - DateTimeHelper.TicksAt1970) / TimeSpan.TicksPerMillisecond;
// is before 1970-01-01?
if (milliseconds < 0)
{
// use a direct year-month-day constructor, if no hour-minute-second-millisecond set:
if ((valueAsUniversal.Ticks % TimeSpan.TicksPerDay) == 0)
return string.Concat("\\/Date(", valueAsUniversal.Year, ",", valueAsUniversal.Month, ",", valueAsUniversal.Day, ")\\/");
// or full date+time:
return string.Concat("\\/Date(", valueAsUniversal.Year, ",", valueAsUniversal.Month, ",", valueAsUniversal.Day, ",",
valueAsUniversal.Hour, ",", valueAsUniversal.Minute, ",", valueAsUniversal.Second, ",", valueAsUniversal.Millisecond, ")\\/");
}
// or by default only miliseconds if date >= 1970-01-01:
return string.Concat("\\/Date(", milliseconds, ")\\/");
case JSonWriterDateFormat.UnixEpochSeconds:
// is before 1970-01-01?
if (valueAsUniversal.Ticks < DateTimeHelper.TicksAt1970)
throw new FormatException("Date is too early, should be after 1970-01-01");
long seconds = (valueAsUniversal.Ticks - DateTimeHelper.TicksAt1970) / TimeSpan.TicksPerSecond;
return seconds.ToString();
case JSonWriterDateFormat.UnixEpochMilliseconds:
// is before 1970-01-01?
if (valueAsUniversal.Ticks < DateTimeHelper.TicksAt1970)
throw new FormatException("Date is too early, should be after 1970-01-01");
milliseconds = (valueAsUniversal.Ticks - DateTimeHelper.TicksAt1970) / TimeSpan.TicksPerMillisecond;
return milliseconds.ToString();
case JSonWriterDateFormat.Ticks:
return valueAsUniversal.Ticks.ToString();
default:
throw new FormatException(string.Concat("Unsupported format specified (", format, ")"));
}
}
/// <summary>
/// Writes DateTime value.
/// It can be used only as an array element or value for object member.
/// Before writing, the date is converted into universal time representation and written as string.
/// </summary>
public void WriteValue(DateTime value, JSonWriterDateFormat format)
{
WriteValueInternal(ToString(value, format), ToQuoteValue(format));
}
/// <summary>
/// Writes a member with a value.
/// It requires to be put inside an object.
/// Before writing, the date is converted into universal time representation and written as string.
/// </summary>
public void WriteMember(string name, DateTime value, JSonWriterDateFormat format)
{
WriteMemberInternal(name, ToString(value, format), ToQuoteValue(format));
}
public void WriteMember(string name, DateTime value, JSonWriterDateFormat format)
{
throw new NotImplementedException();
}
public void WriteValue(DateTime value, JSonWriterDateFormat format)
{
throw new NotImplementedException();
}
public void WriteMember(string name, DateTime value, JSonWriterDateFormat format)
{
throw new NotImplementedException();
}
public void WriteValue(DateTime value, JSonWriterDateFormat format)
{
throw new NotImplementedException();
}
/// <summary>
/// Gets an indication, if given data-time format requires to be serialized as number or quoted string.
/// </summary>
internal static bool ToQuoteValue(JSonWriterDateFormat format)
{
return(format == JSonWriterDateFormat.Default || format == JSonWriterDateFormat.JavaScript);
}
/// <summary>
/// Writes DateTime value.
/// It can be used only as an array element or value for object member.
/// Before writing, the date is converted into universal time representation and written as string.
/// </summary>
public void WriteValue(DateTime value, JSonWriterDateFormat format)
{
WriteValueInternal(ToString(value, format), ToQuoteValue(format));
}
/// <summary>
/// Writes a member with a value.
/// It requires to be put inside an object.
/// Before writing, the date is converted into universal time representation and written as string.
/// </summary>
public void WriteMember(string name, DateTime value, JSonWriterDateFormat format)
{
WriteMemberInternal(name, ToString(value, format), ToQuoteValue(format));
}
public void WriteMember(string name, DateTime value, JSonWriterDateFormat format)
{
_output.WriteMember(name, value, format);
}
public void WriteValue(DateTime value, JSonWriterDateFormat format)
{
_output.WriteValue(value, format);
}
