public PathData Find(string path, IStartPage root, ITargetingFilter targetingFilter, IHeadUrlResolver urlResolver)
{
path = urlResolver.SanitizeUrl(path);
var tokens = path.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
if (tokens.Length == 0)
{
return(new PathData(root, path));
}
IAbstractItem stopItem = root;
IAbstractItem node = root;
string remainingPath = path;
int index = 0;
foreach (var token in tokens)
{
if (StopCondition != null && StopCondition(node))
{
break;
}
node = node.GetChildPageByAlias(token, targetingFilter);
if (node == null)
{
break;
}
index++;
stopItem = node;
remainingPath = $"/{string.Join("/", tokens.Select((x, i) => i < index ? (string)null : x).Where(x => x != null))}";
}
return(new PathData(stopItem, remainingPath));
}
public TAbstractItem GetStartPage <TAbstractItem>(string host, ITargetingFilter filter = null) where TAbstractItem : class, IAbstractItem
{
var startPage = GetStartPage(host, filter);
return(startPage != null ?
startPage as TAbstractItem :
null);
}
/// <summary>
/// Конструктор
/// </summary>
/// <param name="factory">фабрика дополнительных параметров</param>
/// <param name="filter">общий фильтр</param>
/// <param name="matchFilter">фильтр для поискового условия</param>
public RecursiveVisitorAlgorithm(
Func <IAbstractItem, int, V> factory,
ITargetingFilter filter,
ITargetingFilter matchFilter)
{
_factory = factory ?? throw new ArgumentNullException(nameof(factory));
_filter = filter;
_matchFilter = matchFilter;
}
public IAbstractItem GetStartPage(string host, ITargetingFilter filter = null)
{
var bindings = new List <string>();
foreach (var startPage in Root.GetChildren(filter).OfType <IStartPage>())
{
var dns = startPage.GetDNSBindings();
bindings.AddRange(dns);
}
var matcher = new WildcardMatcher(WildcardMatchingOption.FullMatch, bindings);
var pattern = matcher.MatchLongest(host);
return(pattern != null ? _startPageByDnsPatternMappings[pattern] : null);
}
private static void VisitNodes(StringBuilder sb, IAbstractItem node, ITargetingFilter filter, ITargetingUrlTransformator urlTransformator)
{
if (node.IsPage)
{
sb.Append($"<li> <a href = {node.GetUrl(urlTransformator)}> {node.Title} </a></li>");
}
else
{
sb.Append($"<li> {node.Title} </li>");
}
var children = node.GetChildren(filter);
if (children.Any())
{
sb.Append("<ul>");
foreach (var item in children)
{
VisitNodes(sb, item, filter, urlTransformator);
}
sb.Append("</ul>");
}
}
public override IEnumerable <TAbstractItem> GetChildren <TAbstractItem>(ITargetingFilter filter = null)
{
return(GetChildren(filter).OfType <TAbstractItem>());
}
/// <summary>
/// Получение дочерних элементов
/// </summary>
/// <param name="filter">Опционально. Фильтр таргетирования</param>
/// <returns></returns>
public override IEnumerable <IAbstractItem> GetChildren(ITargetingFilter filter = null)
{
return(filter == null ? Children : Children.Pipe(filter));
}
public static IEnumerable <T> Pipe <T>(this IEnumerable <T> items, ITargetingFilter filter) where T : IAbstractItem
{
return(filter.Pipe(items));
}
/// <summary> /// Получение дочерних элементов /// </summary> /// <param name="filter">Опционально. Фильтр таргетирования</param> /// <returns></returns> public abstract IEnumerable <TAbstractItem> GetChildren <TAbstractItem>(ITargetingFilter filter = null) where TAbstractItem : class, IAbstractItem;
/// <summary> /// Получение дочерних элементов /// </summary> /// <param name="filter">Опционально. Фильтр таргетирования</param> /// <returns></returns> public abstract IEnumerable <IAbstractItem> GetChildren(ITargetingFilter filter = null);
/// <summary>
/// Получение дочернего элемента (только IsPage) по алиасу
/// </summary>
/// <param name="alias">Алиас искомого элемента</param>
/// <param name="filter">Опционально. Фильтр таргетирования</param>
/// <returns></returns>
public virtual IAbstractItem GetChildPageByAlias(string alias, ITargetingFilter filter = null)
{
return(GetChildren(filter)
.FirstOrDefault(children => string.Equals(children.Alias, alias, StringComparison.InvariantCultureIgnoreCase) && children.IsPage));
}
