static bool FindAndAddSegmentMatch(RouteRequestBuilder possibleRoutePath, string[] routeKeys)
{
// First search by collapsing global routes if user is registering routes like "route1/route2/route3"
foreach (var routeKey in routeKeys)
{
var collapsedRoutes = CollapsePath(routeKey, possibleRoutePath.SegmentsMatched, true);
var collapsedRoute = String.Join(_pathSeparator, collapsedRoutes);
if (routeKey.StartsWith("//"))
{
var routeKeyPaths =
routeKey.Split(_pathSeparators, StringSplitOptions.RemoveEmptyEntries);
if (routeKeyPaths[0] == collapsedRoutes[0])
{
collapsedRoute = "//" + collapsedRoute;
}
}
string collapsedMatch = possibleRoutePath.GetNextSegmentMatch(collapsedRoute);
if (!String.IsNullOrWhiteSpace(collapsedMatch))
{
possibleRoutePath.AddGlobalRoute(routeKey, collapsedMatch);
return(true);
}
// If the registered route is a combination of shell items and global routes then we might end up here
// without the previous tree search finding the correct path
if ((possibleRoutePath.Shell != null) &&
(possibleRoutePath.Item == null || possibleRoutePath.Section == null || possibleRoutePath.Content == null))
{
var nextNode = possibleRoutePath.GetNodeLocation().WalkToNextNode();
while (nextNode != null)
{
// This means we've jumped to a branch that no longer corresponds with the route path we are searching
if ((possibleRoutePath.Item != null && nextNode.Item != possibleRoutePath.Item) ||
(possibleRoutePath.Section != null && nextNode.Section != possibleRoutePath.Section) ||
(possibleRoutePath.Content != null && nextNode.Content != possibleRoutePath.Content))
{
nextNode = nextNode.WalkToNextNode();
continue;
}
var leafSearch = new RouteRequestBuilder(possibleRoutePath);
if (!leafSearch.AddMatch(nextNode))
{
nextNode = nextNode.WalkToNextNode();
continue;
}
var collapsedLeafRoute = String.Join(_pathSeparator, CollapsePath(routeKey, leafSearch.SegmentsMatched, true));
if (routeKey.StartsWith("//"))
{
collapsedLeafRoute = "//" + collapsedLeafRoute;
}
string segmentMatch = leafSearch.GetNextSegmentMatch(collapsedLeafRoute);
if (!String.IsNullOrWhiteSpace(segmentMatch))
{
possibleRoutePath.AddMatch(nextNode);
possibleRoutePath.AddGlobalRoute(routeKey, segmentMatch);
return(true);
}
nextNode = nextNode.WalkToNextNode();
}
}
}
// check for exact matches
if (routeKeys.Contains(possibleRoutePath.NextSegment))
{
possibleRoutePath.AddGlobalRoute(possibleRoutePath.NextSegment, possibleRoutePath.NextSegment);
return(true);
}
return(false);
}
