/// <summary>
/// Validates the pattern.
/// </summary>
/// <param name="pattern">The pattern to validate.</param>
private static void ValidatePattern(string pattern)
{
ExceptionUtils.CheckArgumentStringNotNullOrEmpty(pattern, "pattern");
string patternWithoutMinusSign = pattern;
RemoveExcludeOperator(ref patternWithoutMinusSign);
if (patternWithoutMinusSign == WildCard)
{
return;
}
string[] segments = patternWithoutMinusSign.Split(NamespaceSeparator);
int segmentCount = segments.Length;
if (segmentCount == 1)
{
throw new ArgumentException(Strings.AnnotationFilterPattern_InvalidPatternMissingDot(pattern));
}
for (int idx = 0; idx < segmentCount; idx++)
{
string currentSegment = segments[idx];
if (string.IsNullOrEmpty(currentSegment))
{
throw new ArgumentException(Strings.AnnotationFilterPattern_InvalidPatternEmptySegment(pattern));
}
if (currentSegment != WildCard && currentSegment.Contains(WildCard))
{
throw new ArgumentException(Strings.AnnotationFilterPattern_InvalidPatternWildCardInSegment(pattern));
}
bool isLastSegment = idx + 1 == segmentCount;
if (currentSegment == WildCard && !isLastSegment)
{
throw new ArgumentException(Strings.AnnotationFilterPattern_InvalidPatternWildCardMustBeInLastSegment(pattern));
}
}
}
