public IEnumerable <Endpoint> FindEndpoints(RouteValuesAddress address)
{
IList <OutboundMatchResult> matchResults = null;
if (string.IsNullOrEmpty(address.RouteName))
{
matchResults = _allMatchesLinkGenerationTree.GetMatches(
address.ExplicitValues,
address.AmbientValues);
}
else if (_namedMatchResults.TryGetValue(address.RouteName, out var namedMatchResults))
{
matchResults = namedMatchResults;
}
if (matchResults != null)
{
var matchCount = matchResults.Count;
if (matchCount > 0)
{
if (matchResults.Count == 1)
{
// Special case having a single result to avoid creating iterator state machine
return(new[] { (RouteEndpoint)matchResults[0].Match.Entry.Data });
}
else
{
// Use separate method since one cannot have regular returns in an iterator method
return(GetEndpoints(matchResults, matchCount));
}
}
}
return(Array.Empty <Endpoint>());
}
/// <inheritdoc />
public VirtualPathData GetVirtualPath(VirtualPathContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
// If it's a named route we will try to generate a link directly and
// if we can't, we will not try to generate it using an unnamed route.
if (context.RouteName != null)
{
return(GetVirtualPathForNamedRoute(context));
}
// The decision tree will give us back all entries that match the provided route data in the correct
// order. We just need to iterate them and use the first one that can generate a link.
var matches = _linkGenerationTree.GetMatches(context);
foreach (var match in matches)
{
var path = GenerateVirtualPath(context, match.Entry);
if (path != null)
{
context.IsBound = true;
return(path);
}
}
return(null);
}
public void SelectMultipleEntries_BothMatch_OrderedByTemplate()
{
// Arrange
var entries = new List <OutboundMatch>();
var entry1 = CreateMatch(new { controller = "Store", action = "Buy" });
entry1.Entry.RouteTemplate = TemplateParser.Parse("a");
entries.Add(entry1);
var entry2 = CreateMatch(new { controller = "Store", action = "Buy" });
entry2.Entry.RouteTemplate = TemplateParser.Parse("b");
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context.Values, context.AmbientValues).Select(m => m.Match).ToList();
// Assert
Assert.Equal(entries, matches);
}
public void SelectMultipleEntries_BothMatch_CriteriaSubset()
{
// Arrange
var entries = new List <OutboundMatch>();
var entry1 = CreateMatch(new { controller = "Store", action = "Buy" });
entries.Add(entry1);
var entry2 = CreateMatch(new { controller = "Store" });
entry2.Entry.Order = 1;
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(
values: new { controller = "Store" },
ambientValues: new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context.Values, context.AmbientValues).Select(m => m.Match).ToList();
// Assert
Assert.Equal(entries, matches);
}
public void SelectMultipleEntries_BothMatch_OrderedByPrecedence()
{
// Arrange
var entries = new List <TreeRouteLinkGenerationEntry>();
var entry1 = CreateEntry(new { controller = "Store", action = "Buy" });
entry1.GenerationPrecedence = 1;
entries.Add(entry1);
var entry2 = CreateEntry(new { controller = "Store", action = "Buy" });
entry2.GenerationPrecedence = 0;
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context).Select(m => m.Entry).ToList();
// Assert
Assert.Equal(entries, matches);
}
public void GetMatches_LinkToPageFromController_WithActionValueAmbiguous()
{
// Arrange
var entries = new List <OutboundMatch>();
var entry1 = CreateMatch(new { controller = "Home", action = "Index", area = (string)null, page = (string)null, });
entry1.Entry.RouteTemplate = TemplateParser.Parse("a");
entries.Add(entry1);
var entry2 = CreateMatch(new { page = "/Store/Buy", area = (string)null, controller = (string)null, action = (string)null, });
entry2.Entry.RouteTemplate = TemplateParser.Parse("b");
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { page = "/Store/Buy", action = "Index", }, new { controller = "Home", action = "Index", page = "16", });
// Act
var matches = tree.GetMatches(context.Values, context.AmbientValues).Select(m => m.Match).ToList();
// Assert
Assert.Empty(matches);
}
public void GetMatches_PagesWithArea_AllValuesAmbient()
{
// Arrange
var entries = new List <OutboundMatch>();
var entry1 = CreateMatch(new { page = "/Store/Buy", area = (string)null, });
entry1.Entry.RouteTemplate = TemplateParser.Parse("a");
entries.Add(entry1);
var entry2 = CreateMatch(new { page = "/Store/Buy", area = "Admin" });
entry2.Entry.RouteTemplate = TemplateParser.Parse("b");
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { }, new { page = "/Store/Buy", area = "Admin", });
// Act
var matches = tree.GetMatches(context.Values, context.AmbientValues).Select(m => m.Match).ToList();
// Assert
Assert.Collection(
matches,
m => { Assert.Same(entry2, m); },
m => { Assert.Same(entry1, m); });
}
/// <inheritdoc />
public VirtualPathData GetVirtualPath(VirtualPathContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
// If it's a named route we will try to generate a link directly and
// if we can't, we will not try to generate it using an unnamed route.
if (context.RouteName != null)
{
return(GetVirtualPathForNamedRoute(context));
}
// The decision tree will give us back all entries that match the provided route data in the correct
// order. We just need to iterate them and use the first one that can generate a link.
var matches = _linkGenerationTree.GetMatches(context.Values, context.AmbientValues);
if (matches == null)
{
return(null);
}
for (var i = 0; i < matches.Count; i++)
{
var path = GenerateVirtualPath(context, matches[i].Match.Entry, matches[i].Match.TemplateBinder);
if (path != null)
{
return(path);
}
}
return(null);
}
public void SelectMultipleEntries_OneDoesntMatch()
{
// Arrange
var entries = new List <OutboundMatch>();
var entry1 = CreateMatch(new { controller = "Store", action = "Buy" });
entries.Add(entry1);
var entry2 = CreateMatch(new { controller = "Store", action = "Cart" });
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(
values: new { controller = "Store" },
ambientValues: new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context.Values, context.AmbientValues);
// Assert
Assert.Same(entry1, Assert.Single(matches).Match);
}
public void SelectSingleEntry_MultipleCriteria()
{
// Arrange
var entries = new List<AttributeRouteLinkGenerationEntry>();
var entry = CreateEntry(new { controller = "Store", action = "Buy" });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context);
// Assert
Assert.Same(entry, Assert.Single(matches).Entry);
}
public void SelectSingleEntry_NoCriteria()
{
// Arrange
var entries = new List<TreeRouteLinkGenerationEntry>();
var entry = CreateEntry(new { });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { });
// Act
var matches = tree.GetMatches(context);
// Assert
Assert.Same(entry, Assert.Single(matches).Entry);
}
public void SelectSingleEntry_NoCriteria()
{
// Arrange
var entries = new List <OutboundMatch>();
var entry = CreateMatch(new { });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { });
// Act
var matches = tree.GetMatches(context);
// Assert
Assert.Same(entry, Assert.Single(matches).Match);
}
public void SelectSingleEntry_MultipleCriteria()
{
// Arrange
var entries = new List <TreeRouteLinkGenerationEntry>();
var entry = CreateEntry(new { controller = "Store", action = "Buy" });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context);
// Assert
Assert.Same(entry, Assert.Single(matches).Entry);
}
public void GetMatches_AllowsNullAmbientValues()
{
// Arrange
var entries = new List <OutboundMatch>();
var entry = CreateMatch(new { });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { });
// Act
var matches = tree.GetMatches(context.Values, ambientValues: null);
// Assert
Assert.Same(entry, Assert.Single(matches).Match);
}
public void SelectSingleEntry_MultipleCriteria_NoMatch()
{
// Arrange
var entries = new List <OutboundMatch>();
var entry = CreateMatch(new { controller = "Store", action = "Buy" });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { controller = "Store", action = "AddToCart" });
// Act
var matches = tree.GetMatches(context);
// Assert
Assert.Empty(matches);
}
public void SelectSingleEntry_MultipleCriteria()
{
// Arrange
var entries = new List <OutboundMatch>();
var entry = CreateMatch(new { controller = "Store", action = "Buy" });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context.Values, context.AmbientValues);
// Assert
Assert.Same(entry, Assert.Single(matches).Match);
}
public void SelectSingleEntry_MultipleCriteria_AmbientValues()
{
// Arrange
var entries = new List<AttributeRouteLinkGenerationEntry>();
var entry = CreateEntry(new { controller = "Store", action = "Buy" });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(values: null, ambientValues: new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context);
// Assert
var match = Assert.Single(matches);
Assert.Same(entry, match.Entry);
Assert.False(match.IsFallbackMatch);
}
public void SelectSingleEntry_MultipleCriteria_AmbientValue_NoMatch()
{
// Arrange
var entries = new List <TreeRouteLinkGenerationEntry>();
var entry = CreateEntry(new { controller = "Store", action = "Buy" });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(
values: new { controller = "Store" },
ambientValues: new { controller = "Store", action = "Cart" });
// Act
var matches = tree.GetMatches(context);
// Assert
Assert.Empty(matches);
}
public void SelectSingleEntry_MultipleCriteria_AmbientValues()
{
// Arrange
var entries = new List <TreeRouteLinkGenerationEntry>();
var entry = CreateEntry(new { controller = "Store", action = "Buy" });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(values: null, ambientValues: new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context);
// Assert
var match = Assert.Single(matches);
Assert.Same(entry, match.Entry);
Assert.False(match.IsFallbackMatch);
}
public void SelectSingleEntry_MultipleCriteria_Replaced()
{
// Arrange
var entries = new List <OutboundMatch>();
var entry = CreateMatch(new { controller = "Store", action = "Buy" });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(
values: new { action = "Buy" },
ambientValues: new { controller = "Store", action = "Cart" });
// Act
var matches = tree.GetMatches(context.Values, context.AmbientValues);
// Assert
var match = Assert.Single(matches);
Assert.Same(entry, match.Match);
Assert.False(match.IsFallbackMatch);
}
public void SelectMultipleEntries_BothMatch_NonOverlappingCriteria()
{
// Arrange
var entries = new List <TreeRouteLinkGenerationEntry>();
var entry1 = CreateEntry(new { controller = "Store", action = "Buy" });
entries.Add(entry1);
var entry2 = CreateEntry(new { slug = "1234" });
entry2.Order = 1;
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { controller = "Store", action = "Buy", slug = "1234" });
// Act
var matches = tree.GetMatches(context).Select(m => m.Entry).ToList();
// Assert
Assert.Equal(entries, matches);
}
public IEnumerable <Endpoint> FindEndpoints(RouteValuesAddress address)
{
IEnumerable <OutboundMatchResult> matchResults = null;
if (string.IsNullOrEmpty(address.RouteName))
{
matchResults = _allMatchesLinkGenerationTree.GetMatches(
address.ExplicitValues,
address.AmbientValues);
}
else if (_namedMatchResults.TryGetValue(address.RouteName, out var namedMatchResults))
{
matchResults = namedMatchResults;
}
if (matchResults == null || !matchResults.Any())
{
return(Array.Empty <Endpoint>());
}
return(matchResults
.Select(matchResult => matchResult.Match)
.Select(match => (MatcherEndpoint)match.Entry.Data));
}
public void SelectMultipleEntries_BothMatch_CriteriaSubset()
{
// Arrange
var entries = new List<TreeRouteLinkGenerationEntry>();
var entry1 = CreateEntry(new { controller = "Store", action = "Buy" });
entries.Add(entry1);
var entry2 = CreateEntry(new { controller = "Store" });
entry2.Order = 1;
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(
values: new { controller = "Store" },
ambientValues: new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context).Select(m => m.Entry).ToList();
// Assert
Assert.Equal(entries, matches);
}
public void SelectMultipleEntries_BothMatch_OrderedByTemplate()
{
// Arrange
var entries = new List<AttributeRouteLinkGenerationEntry>();
var entry1 = CreateEntry(new { controller = "Store", action = "Buy" });
entry1.TemplateText = "a";
entries.Add(entry1);
var entry2 = CreateEntry(new { controller = "Store", action = "Buy" });
entry2.TemplateText = "b";
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context).Select(m => m.Entry).ToList();
// Assert
Assert.Equal(entries, matches);
}
public void SelectMultipleEntries_BothMatch_NonOverlappingCriteria()
{
// Arrange
var entries = new List<AttributeRouteLinkGenerationEntry>();
var entry1 = CreateEntry(new { controller = "Store", action = "Buy" });
entries.Add(entry1);
var entry2 = CreateEntry(new { slug = "1234" });
entry2.Order = 1;
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(new { controller = "Store", action = "Buy", slug = "1234" });
// Act
var matches = tree.GetMatches(context).Select(m => m.Entry).ToList();
// Assert
Assert.Equal(entries, matches);
}
public void SelectMultipleEntries_OneDoesntMatch()
{
// Arrange
var entries = new List<AttributeRouteLinkGenerationEntry>();
var entry1 = CreateEntry(new { controller = "Store", action = "Buy" });
entries.Add(entry1);
var entry2 = CreateEntry(new { controller = "Store", action = "Cart" });
entries.Add(entry2);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(
values: new { controller = "Store" },
ambientValues: new { controller = "Store", action = "Buy" });
// Act
var matches = tree.GetMatches(context);
// Assert
Assert.Same(entry1, Assert.Single(matches).Entry);
}
public void SelectSingleEntry_MultipleCriteria_AmbientValue_NoMatch()
{
// Arrange
var entries = new List<AttributeRouteLinkGenerationEntry>();
var entry = CreateEntry(new { controller = "Store", action = "Buy" });
entries.Add(entry);
var tree = new LinkGenerationDecisionTree(entries);
var context = CreateContext(
values: new { controller = "Store" },
ambientValues: new { controller = "Store", action = "Cart" });
// Act
var matches = tree.GetMatches(context);
// Assert
Assert.Empty(matches);
}
