private static IList <TemplateInfo> AppendFunctionTemplate(IList <TemplateInfo> templates, FunctionSegmentTemplate segment, ODataRouteOptions options)
{
Contract.Assert(segment != null);
Contract.Assert(options != null);
string qualified = segment.GetDisplayName(true);
string unqulified = segment.GetDisplayName(false);
if (options.EnableQualifiedOperationCall && options.EnableUnqualifiedOperationCall)
{
return(CombinateTemplates(templates, (segment.Literal, qualified), (segment.UnqualifiedIdentifier, unqulified)));
}
else if (options.EnableQualifiedOperationCall)
{
return(CombinateTemplate(templates, (segment.Literal, qualified)));
}
else if (options.EnableUnqualifiedOperationCall)
{
return(CombinateTemplate(templates, (segment.UnqualifiedIdentifier, unqulified)));
}
else
{
throw new ODataException(Error.Format(SRResources.RouteOptionDisabledOperationSegment, "function"));
}
}
private static IList <TemplateInfo> AppendKeyTemplate(IList <TemplateInfo> templates, KeySegmentTemplate segment, ODataRouteOptions options)
{
Contract.Assert(segment != null);
Contract.Assert(options != null);
string displayName = GetDisplayName(segment);
if (options.EnableKeyInParenthesis && options.EnableKeyAsSegment)
{
return(CombinateTemplates(templates, ($"({segment.Literal})", $"({displayName})"), ($"/{segment.Literal}", $"/{displayName}")));
}
else if (options.EnableKeyInParenthesis)
{
return(CombinateTemplate(templates, ($"({segment.Literal})", $"({displayName})")));
}
else if (options.EnableKeyAsSegment)
{
return(CombinateTemplate(templates, ($"/{segment.Literal}", $"/{displayName}")));
}
else
{
throw new ODataException(SRResources.RouteOptionDisabledKeySegment);
}
}
/// <summary>
/// Generates all templates for the given <see cref="ODataPathTemplate"/>.
/// All templates mean:
/// 1) for key segment, we have key in parenthesis and key as segment.
/// 2) for bound function segment, we have qualified function call and unqualified function call.
/// </summary>
/// <param name="path">The given path template.</param>
/// <param name="options">The route options.</param>
/// <returns>All path template and its display name..</returns>
public static IEnumerable <(string, string)> GetTemplates(this ODataPathTemplate path, ODataRouteOptions options = null)
{
if (path == null)
{
throw Error.ArgumentNull(nameof(path));
}
options = options ?? ODataRouteOptions.Default;
IList <TemplateInfo> templates = new List <TemplateInfo>
{
new TemplateInfo
{
Template = new StringBuilder(),
Display = new StringBuilder()
}
};
int count = path.Segments.Count;
for (int index = 0; index < count; index++)
{
ODataSegmentTemplate segment = path.Segments[index];
if (segment.Kind == ODataSegmentKind.Key)
{
// for key segment, if it's single key, let's add key as segment template also
// otherwise, we only add the key in parenthesis template.
KeySegmentTemplate keySg = segment as KeySegmentTemplate;
templates = AppendKeyTemplate(templates, keySg, options);
continue;
}
if (index != 0)
{
templates = CombinateTemplate(templates, ("/", "/"));
}
// create => ~.../navigation/{key}/$ref
if (segment.Kind == ODataSegmentKind.NavigationLink)
{
NavigationLinkSegmentTemplate navigationLinkSegment = (NavigationLinkSegmentTemplate)segment;
if (index == count - 1)
{
// we don't have the other segment
string refTemp = $"{navigationLinkSegment.Segment.NavigationProperty.Name}/$ref";
templates = CombinateTemplates(templates, (refTemp, refTemp));
}
else
{
ODataSegmentTemplate nextSegment = path.Segments[index + 1];
if (nextSegment.Kind == ODataSegmentKind.Key)
{
// append "navigation property"
string navTemp = navigationLinkSegment.Segment.NavigationProperty.Name;
templates = CombinateTemplates(templates, (navTemp, navTemp));
// append "key"
KeySegmentTemplate keySg = nextSegment as KeySegmentTemplate;
templates = AppendKeyTemplate(templates, keySg, options);
// append $ref
templates = CombinateTemplates(templates, ("/$ref", "/$ref"));
index++; // skip the key segment after $ref.
}
else
{
string refTemp = $"{navigationLinkSegment.Segment.NavigationProperty.Name}/$ref";
templates = CombinateTemplates(templates, (refTemp, refTemp));
}
}
continue;
}
if (segment.Kind == ODataSegmentKind.Action)
{
ActionSegmentTemplate action = (ActionSegmentTemplate)segment;
templates = AppendActionTemplate(templates, action, options);
}
else if (segment.Kind == ODataSegmentKind.Function)
{
FunctionSegmentTemplate function = (FunctionSegmentTemplate)segment;
templates = AppendFunctionTemplate(templates, function, options);
}
else
{
templates = CombinateTemplate(templates, (segment.Literal, segment.Literal));
}
}
foreach (var template in templates)
{
yield return(template.Template.ToString(), template.Display.ToString());
}
//return templates.Select(t => t.ToString());
}