using HH.WMS.WebApi.Areas.HelpPage.Models;
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Diagnostics.CodeAnalysis;
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using System.Globalization;
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using System.Linq;
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using System.Net.Http.Headers;
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using System.Web.Http;
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using System.Web.Http.Description;
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namespace HH.WMS.WebApi.Areas.HelpPage
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{
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public static class HelpPageConfigurationExtensions
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{
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private const string ApiModelPrefix = "MS_HelpPageApiModel_";
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/// <summary>
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/// Sets the documentation provider for help page.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="documentationProvider">The documentation provider.</param>
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public static void SetDocumentationProvider(this HttpConfiguration config, IDocumentationProvider documentationProvider)
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{
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config.Services.Replace(typeof(IDocumentationProvider), documentationProvider);
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}
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/// <summary>
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/// Sets the objects that will be used by the formatters to produce sample requests/responses.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="sampleObjects">The sample objects.</param>
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public static void SetSampleObjects(this HttpConfiguration config, IDictionary<Type, object> sampleObjects)
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{
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config.GetHelpPageSampleGenerator().SampleObjects = sampleObjects;
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}
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/// <summary>
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/// Sets the sample request directly for the specified media type and action.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="sample">The sample request.</param>
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/// <param name="mediaType">The media type.</param>
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/// <param name="controllerName">Name of the controller.</param>
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/// <param name="actionName">Name of the action.</param>
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public static void SetSampleRequest(this HttpConfiguration config, object sample, MediaTypeHeaderValue mediaType, string controllerName, string actionName)
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{
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config.GetHelpPageSampleGenerator().ActionSamples.Add(new HelpPageSampleKey(mediaType, SampleDirection.Request, controllerName, actionName, new[] { "*" }), sample);
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}
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/// <summary>
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/// Sets the sample request directly for the specified media type and action with parameters.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="sample">The sample request.</param>
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/// <param name="mediaType">The media type.</param>
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/// <param name="controllerName">Name of the controller.</param>
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/// <param name="actionName">Name of the action.</param>
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/// <param name="parameterNames">The parameter names.</param>
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public static void SetSampleRequest(this HttpConfiguration config, object sample, MediaTypeHeaderValue mediaType, string controllerName, string actionName, params string[] parameterNames)
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{
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config.GetHelpPageSampleGenerator().ActionSamples.Add(new HelpPageSampleKey(mediaType, SampleDirection.Request, controllerName, actionName, parameterNames), sample);
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}
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/// <summary>
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/// Sets the sample request directly for the specified media type of the action.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="sample">The sample response.</param>
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/// <param name="mediaType">The media type.</param>
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/// <param name="controllerName">Name of the controller.</param>
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/// <param name="actionName">Name of the action.</param>
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public static void SetSampleResponse(this HttpConfiguration config, object sample, MediaTypeHeaderValue mediaType, string controllerName, string actionName)
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{
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config.GetHelpPageSampleGenerator().ActionSamples.Add(new HelpPageSampleKey(mediaType, SampleDirection.Response, controllerName, actionName, new[] { "*" }), sample);
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}
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/// <summary>
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/// Sets the sample response directly for the specified media type of the action with specific parameters.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="sample">The sample response.</param>
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/// <param name="mediaType">The media type.</param>
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/// <param name="controllerName">Name of the controller.</param>
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/// <param name="actionName">Name of the action.</param>
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/// <param name="parameterNames">The parameter names.</param>
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public static void SetSampleResponse(this HttpConfiguration config, object sample, MediaTypeHeaderValue mediaType, string controllerName, string actionName, params string[] parameterNames)
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{
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config.GetHelpPageSampleGenerator().ActionSamples.Add(new HelpPageSampleKey(mediaType, SampleDirection.Response, controllerName, actionName, parameterNames), sample);
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}
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/// <summary>
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/// Sets the sample directly for all actions with the specified type and media type.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="sample">The sample.</param>
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/// <param name="mediaType">The media type.</param>
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/// <param name="type">The parameter type or return type of an action.</param>
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public static void SetSampleForType(this HttpConfiguration config, object sample, MediaTypeHeaderValue mediaType, Type type)
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{
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config.GetHelpPageSampleGenerator().ActionSamples.Add(new HelpPageSampleKey(mediaType, type), sample);
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}
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/// <summary>
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/// Specifies the actual type of <see cref="System.Net.Http.ObjectContent{T}"/> passed to the <see cref="System.Net.Http.HttpRequestMessage"/> in an action.
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/// The help page will use this information to produce more accurate request samples.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="type">The type.</param>
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/// <param name="controllerName">Name of the controller.</param>
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/// <param name="actionName">Name of the action.</param>
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public static void SetActualRequestType(this HttpConfiguration config, Type type, string controllerName, string actionName)
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{
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config.GetHelpPageSampleGenerator().ActualHttpMessageTypes.Add(new HelpPageSampleKey(SampleDirection.Request, controllerName, actionName, new[] { "*" }), type);
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}
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/// <summary>
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/// Specifies the actual type of <see cref="System.Net.Http.ObjectContent{T}"/> passed to the <see cref="System.Net.Http.HttpRequestMessage"/> in an action.
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/// The help page will use this information to produce more accurate request samples.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="type">The type.</param>
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/// <param name="controllerName">Name of the controller.</param>
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/// <param name="actionName">Name of the action.</param>
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/// <param name="parameterNames">The parameter names.</param>
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public static void SetActualRequestType(this HttpConfiguration config, Type type, string controllerName, string actionName, params string[] parameterNames)
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{
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config.GetHelpPageSampleGenerator().ActualHttpMessageTypes.Add(new HelpPageSampleKey(SampleDirection.Request, controllerName, actionName, parameterNames), type);
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}
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/// <summary>
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/// Specifies the actual type of <see cref="System.Net.Http.ObjectContent{T}"/> returned as part of the <see cref="System.Net.Http.HttpRequestMessage"/> in an action.
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/// The help page will use this information to produce more accurate response samples.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="type">The type.</param>
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/// <param name="controllerName">Name of the controller.</param>
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/// <param name="actionName">Name of the action.</param>
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public static void SetActualResponseType(this HttpConfiguration config, Type type, string controllerName, string actionName)
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{
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config.GetHelpPageSampleGenerator().ActualHttpMessageTypes.Add(new HelpPageSampleKey(SampleDirection.Response, controllerName, actionName, new[] { "*" }), type);
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}
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/// <summary>
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/// Specifies the actual type of <see cref="System.Net.Http.ObjectContent{T}"/> returned as part of the <see cref="System.Net.Http.HttpRequestMessage"/> in an action.
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/// The help page will use this information to produce more accurate response samples.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="type">The type.</param>
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/// <param name="controllerName">Name of the controller.</param>
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/// <param name="actionName">Name of the action.</param>
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/// <param name="parameterNames">The parameter names.</param>
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public static void SetActualResponseType(this HttpConfiguration config, Type type, string controllerName, string actionName, params string[] parameterNames)
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{
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config.GetHelpPageSampleGenerator().ActualHttpMessageTypes.Add(new HelpPageSampleKey(SampleDirection.Response, controllerName, actionName, parameterNames), type);
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}
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/// <summary>
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/// Gets the help page sample generator.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <returns>The help page sample generator.</returns>
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public static HelpPageSampleGenerator GetHelpPageSampleGenerator(this HttpConfiguration config)
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{
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return (HelpPageSampleGenerator)config.Properties.GetOrAdd(
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typeof(HelpPageSampleGenerator),
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k => new HelpPageSampleGenerator());
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}
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/// <summary>
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/// Sets the help page sample generator.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="sampleGenerator">The help page sample generator.</param>
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public static void SetHelpPageSampleGenerator(this HttpConfiguration config, HelpPageSampleGenerator sampleGenerator)
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{
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config.Properties.AddOrUpdate(
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typeof(HelpPageSampleGenerator),
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k => sampleGenerator,
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(k, o) => sampleGenerator);
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}
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/// <summary>
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/// Gets the model that represents an API displayed on the help page. The model is initialized on the first call and cached for subsequent calls.
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/// </summary>
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/// <param name="config">The <see cref="HttpConfiguration"/>.</param>
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/// <param name="apiDescriptionId">The <see cref="ApiDescription"/> ID.</param>
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/// <returns>
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/// An <see cref="HelpPageApiModel"/>
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/// </returns>
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public static HelpPageApiModel GetHelpPageApiModel(this HttpConfiguration config, string apiDescriptionId)
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{
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object model;
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string modelId = ApiModelPrefix + apiDescriptionId;
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if (!config.Properties.TryGetValue(modelId, out model))
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{
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Collection<ApiDescription> apiDescriptions = config.Services.GetApiExplorer().ApiDescriptions;
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ApiDescription apiDescription = apiDescriptions.FirstOrDefault(api => String.Equals(api.GetFriendlyId(), apiDescriptionId, StringComparison.OrdinalIgnoreCase));
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if (apiDescription != null)
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{
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HelpPageSampleGenerator sampleGenerator = config.GetHelpPageSampleGenerator();
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model = GenerateApiModel(apiDescription, sampleGenerator);
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config.Properties.TryAdd(modelId, model);
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}
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}
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return (HelpPageApiModel)model;
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}
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[SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes", Justification = "The exception is recorded as ErrorMessages.")]
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private static HelpPageApiModel GenerateApiModel(ApiDescription apiDescription, HelpPageSampleGenerator sampleGenerator)
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{
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HelpPageApiModel apiModel = new HelpPageApiModel();
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apiModel.ApiDescription = apiDescription;
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try
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{
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foreach (var item in sampleGenerator.GetSampleRequests(apiDescription))
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{
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apiModel.SampleRequests.Add(item.Key, item.Value);
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LogInvalidSampleAsError(apiModel, item.Value);
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}
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foreach (var item in sampleGenerator.GetSampleResponses(apiDescription))
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{
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apiModel.SampleResponses.Add(item.Key, item.Value);
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LogInvalidSampleAsError(apiModel, item.Value);
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}
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}
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catch (Exception e)
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{
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apiModel.ErrorMessages.Add(String.Format(CultureInfo.CurrentCulture, "An exception has occurred while generating the sample. Exception Message: {0}", e.Message));
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}
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return apiModel;
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}
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private static void LogInvalidSampleAsError(HelpPageApiModel apiModel, object sample)
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{
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InvalidSample invalidSample = sample as InvalidSample;
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if (invalidSample != null)
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{
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apiModel.ErrorMessages.Add(invalidSample.ErrorMessage);
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}
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}
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}
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}
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