Exemple #1
0
        public virtual VirtualPathData GetVirtualPath(VirtualPathContext context)
        {
            var values = _binder.GetValues(context.AmbientValues, context.Values);

            if (values == null)
            {
                // We're missing one of the required values for this route.
                return(null);
            }

            EnsureLoggers(context.Context);
            if (!RouteConstraintMatcher.Match(Constraints,
                                              values.CombinedValues,
                                              context.Context,
                                              this,
                                              RouteDirection.UrlGeneration,
                                              _constraintLogger))
            {
                return(null);
            }

            // Validate that the target can accept these values.
            var childContext = CreateChildVirtualPathContext(context, values.AcceptedValues);

            var pathData = _target.GetVirtualPath(childContext);

            if (pathData != null)
            {
                // If the target generates a value then that can short circuit.
                return(pathData);
            }

            // If we can produce a value go ahead and do it, the caller can check context.IsBound
            // to see if the values were validated.

            // When we still cannot produce a value, this should return null.
            var tempPath = _binder.BindValues(values.AcceptedValues);

            if (tempPath == null)
            {
                return(null);
            }

            pathData = new VirtualPathData(this, tempPath);
            if (DataTokens != null)
            {
                foreach (var dataToken in DataTokens)
                {
                    pathData.DataTokens.Add(dataToken.Key, dataToken.Value);
                }
            }

            context.IsBound = childContext.IsBound;

            return(pathData);
        }
Exemple #2
0
        public virtual string GetVirtualPath(VirtualPathContext context)
        {
            var values = _binder.GetValues(context.AmbientValues, context.Values);

            if (values == null)
            {
                // We're missing one of the required values for this route.
                return(null);
            }

            EnsureLoggers(context.Context);
            if (!RouteConstraintMatcher.Match(Constraints,
                                              values.CombinedValues,
                                              context.Context,
                                              this,
                                              RouteDirection.UrlGeneration,
                                              _constraintLogger))
            {
                return(null);
            }

            // Validate that the target can accept these values.
            var childContext = CreateChildVirtualPathContext(context, values.AcceptedValues);
            var path         = _target.GetVirtualPath(childContext);

            if (path != null)
            {
                // If the target generates a value then that can short circuit.
                context.IsBound = true;
                return(path);
            }
            else if (!childContext.IsBound)
            {
                // The target has rejected these values.
                return(null);
            }

            path = _binder.BindValues(values.AcceptedValues);
            if (path != null)
            {
                context.IsBound = true;
            }

            return(path);
        }