83 lines
3.0 KiB
C#
83 lines
3.0 KiB
C#
// Copyright (c) Microsoft Open Technologies, Inc.
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// All Rights Reserved
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
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// WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF
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// TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR
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// NON-INFRINGEMENT.
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// See the Apache 2 License for the specific language governing
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// permissions and limitations under the License.
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using System;
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using System.Collections.Generic;
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namespace Microsoft.AspNet.Routing
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{
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public class RouteConstraintBuilder
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{
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public static IDictionary<string, IRouteConstraint>
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BuildConstraints(IDictionary<string, object> inputConstraints)
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{
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return BuildConstraintsCore(inputConstraints, routeTemplate: null);
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}
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public static IDictionary<string, IRouteConstraint>
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BuildConstraints(IDictionary<string, object> inputConstraints, [NotNull] string routeTemplate)
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{
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return BuildConstraintsCore(inputConstraints, routeTemplate);
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}
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private static IDictionary<string, IRouteConstraint>
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BuildConstraintsCore(IDictionary<string, object> inputConstraints, string routeTemplate)
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{
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if (inputConstraints == null || inputConstraints.Count == 0)
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{
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return null;
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}
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var constraints = new Dictionary<string, IRouteConstraint>(inputConstraints.Count, StringComparer.OrdinalIgnoreCase);
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foreach (var kvp in inputConstraints)
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{
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var constraint = kvp.Value as IRouteConstraint;
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if (constraint == null)
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{
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var regexPattern = kvp.Value as string;
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if (regexPattern == null)
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{
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if (routeTemplate != null)
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{
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throw new InvalidOperationException(
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Resources.FormatTemplateRoute_ValidationMustBeStringOrCustomConstraint(
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kvp.Key, routeTemplate, typeof(IRouteConstraint)));
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}
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else
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{
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throw new InvalidOperationException(
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Resources.FormatGeneralConstraints_ValidationMustBeStringOrCustomConstraint(
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kvp.Key, typeof(IRouteConstraint)));
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}
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}
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var constraintsRegEx = "^(" + regexPattern + ")$";
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constraint = new RegexConstraint(constraintsRegEx);
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}
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constraints.Add(kvp.Key, constraint);
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}
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return constraints;
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}
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}
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}
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