public Range getRange()
{
if (null != _range)
{
return _range;
}
if (!_headers.ContainsKey("range"))
{
return null;
}
String rangeValue = _headers["range"];
_range = Range.buildFromString(rangeValue);
return _range;
}
public static Range buildFromString(String value)
{
Range answer = new Range(value);
string[] tokens = value.Split(new char[] { '=', ',' });
if (2 != tokens.Length)
{
String technicalError = String.Format("2 != tokens.Length; only support simple range values; value = '{0}'", value);
throw new BaseException( typeof(Range), technicalError);
}
String bytes = tokens[0];
if (!"bytes".Equals(bytes))
{
String technicalError = String.Format("!\"bytes\".Equals(bytes); bytes = '{0}'; value = '{1}'", bytes, value );
throw new BaseException(typeof(Range), technicalError);
}
String range = tokens[1];
log.debug(range, "range");
int indexOfHyphen = range.IndexOf('-');
if (-1 == indexOfHyphen)
{
String technicalError = String.Format("-1 == indexOfHyphen; range = '{0}'; value = '{1}'", range, value);
throw new BaseException(typeof(Range), technicalError);
}
int secondHyphen = range.IndexOf('-', indexOfHyphen + 1);
if (-1 != secondHyphen)
{
String technicalError = String.Format("-1 != secondHyphen; range = '{0}'; value = '{1}'", range, value);
throw new BaseException(typeof(Range), technicalError);
}
// "bytes=-500"
if (0 == indexOfHyphen)
{
long firstBytePosition = System.Int64.Parse(range);
answer._firstBytePosition = new BytePosition(firstBytePosition);
return answer;
}
// "bytes=9500-"
int rangeLength = range.Length;
if ('-' == range[rangeLength - 1])
{
range = range.Substring(0, rangeLength - 1);
long firstBytePosition = System.Int64.Parse(range);
answer._firstBytePosition = new BytePosition(firstBytePosition);
return answer;
}
// "bytes=500-999"
String startPosition = range.Substring(0, indexOfHyphen);
// long firstBytePosition = System.Int64.Parse(startPosition); // c-sharp does not like this ... Error 1 Elements defined in a namespace cannot be explicitly declared as private, protected, or protected internal H:\projects.windows\c-sharp\vlc_amigo.solution\jsonbroker.library\common\http\headers\request\Range.cs 11 21 jsonbroker.library
answer._firstBytePosition = new BytePosition(System.Int64.Parse(startPosition));
String endPosition = range.Substring(indexOfHyphen + 1);
answer._lastBytePosition = new BytePosition(System.Int64.Parse(endPosition));
return answer;
}
