public bool IsMatch(string title, string classname)
{
if (TitlePattern != null && !TitlePattern.IsMatch(title))
{
return(false);
}
if (ClassPattern != null && !ClassPattern.IsMatch(classname))
{
return(false);
}
return(true);
}
/// <summary>
/// Wendet die Fiterbedingung an.
/// </summary>
/// <param name="entries">Eine Liste von Einträgen.</param>
/// <returns>Die gefilterte Liste.</returns>
public IEnumerable <ProgramGuideEntry> Filter(IEnumerable <ProgramGuideEntry> entries)
{
// Only use sources available to the target profile
var entrySet = entries
.Select(entry => new { e = entry, s = VCRProfiles.FindSource(ProfileName, entry.Source) })
.Where(entry => entry.s != null)
.Select(entry => new { e = entry.e, s = (Station)entry.s.Source });
// Name of the station - best filter first
if (Source != null)
{
// One source - no more filters
entrySet = entrySet.Where(entry => Source.Equals(entry.e.Source));
}
else
{
// Apply source type filter
if (SourceType == GuideSourceFilter.Television)
{
entrySet = entrySet.Where(entry => entry.s.SourceType == SourceTypes.TV);
}
else if (SourceType == GuideSourceFilter.Radio)
{
entrySet = entrySet.Where(entry => entry.s.SourceType == SourceTypes.Radio);
}
// Apply encryption filter
if (SourceEncryption == GuideEncryptionFilter.Free)
{
entrySet = entrySet.Where(entry => !entry.s.IsEncrypted);
}
else if (SourceEncryption == GuideEncryptionFilter.Encrypted)
{
entrySet = entrySet.Where(entry => entry.s.IsEncrypted);
}
}
// Start time
if (Start.HasValue)
{
// Later
entrySet = entrySet.Where(entry => entry.e.StartTime >= Start.Value);
}
else
{
// Current
var now = DateTime.UtcNow;
// Still active
entrySet = entrySet.Where(entry => entry.e.EndTime > now);
}
// Matcher on content
Func <ProgramGuideEntry, bool> matchTitle = null;
Func <ProgramGuideEntry, bool> matchContent = null;
// Title
if (!string.IsNullOrEmpty(TitlePattern))
{
var title = TitlePattern.Substring(1);
switch (TitlePattern[0])
{
case '=': matchTitle = entry => (entry.Name ?? string.Empty).Equals(title, StringComparison.InvariantCultureIgnoreCase); break;
case '*': matchTitle = entry => (entry.Name ?? string.Empty).IndexOf(title, StringComparison.InvariantCultureIgnoreCase) >= 0; break;
}
}
// Both descriptions
if (!string.IsNullOrEmpty(ContentPattern))
{
var content = ContentPattern.Substring(1);
switch (ContentPattern[0])
{
case '=': matchContent = entry => (entry.Description ?? string.Empty).Equals(content, StringComparison.InvariantCultureIgnoreCase) || (entry.ShortDescription ?? string.Empty).Equals(content, StringComparison.InvariantCultureIgnoreCase); break;
case '*': matchContent = entry => ((entry.Description ?? string.Empty).IndexOf(content, StringComparison.InvariantCultureIgnoreCase) >= 0) || ((entry.ShortDescription ?? string.Empty).IndexOf(content, StringComparison.InvariantCultureIgnoreCase) >= 0); break;
}
}
// Apply content filter
if (matchTitle != null)
{
if (matchContent != null)
{
entrySet = entrySet.Where(entry => matchTitle(entry.e) || matchContent(entry.e));
}
else
{
entrySet = entrySet.Where(entry => matchTitle(entry.e));
}
}
else if (matchContent != null)
{
entrySet = entrySet.Where(entry => matchContent(entry.e));
}
// Back mapping
entries = entrySet.Select(entry => entry.e);
// Caller will get it all
if (PageSize < 1)
{
return(entries);
}
// Copy local
var matches = entries.ToList();
// Sort in list to improve overall performance
matches.Sort(Comparer);
// Adjust extract - report one more if possible to indicate that there is more available
return(matches.Skip(PageIndex * PageSize).Take(PageSize + 1));
}
