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74 lines
2.4 KiB
74 lines
2.4 KiB
//-----------------------------------------------------------------------
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// <copyright file="MapMatcher.cs" company="Mapbox">
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// Copyright (c) 2017 Mapbox. All rights reserved.
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// </copyright>
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//-----------------------------------------------------------------------
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namespace Mapbox.MapMatching
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{
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using System;
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using System.Text;
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using Mapbox.Json;
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using Mapbox.Platform;
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using Mapbox.Utils.JsonConverters;
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/// <summary>
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/// Wrapper around the <see href="https://www.mapbox.com/api-documentation/navigation/#map-matching">
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/// Mapbox Map Matching API</see>.
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/// </summary>
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public class MapMatcher
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{
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private readonly IFileSource _fileSource;
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private int _timeout;
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/// <summary> Initializes a new instance of the <see cref="MapMatcher" /> class. </summary>
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/// <param name="fileSource"> Network access abstraction. </param>
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public MapMatcher(IFileSource fileSource, int timeout)
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{
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_fileSource = fileSource;
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_timeout = timeout;
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}
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/// <summary> Performs asynchronously a geocoding lookup. </summary>
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/// <param name="geocode"> Geocode resource. </param>
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/// <param name="callback"> Callback to be called after the request is completed. </param>
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/// <typeparam name="T"> String or LngLat. Should be automatically inferred. </typeparam>
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/// <returns>
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/// Returns a <see cref="IAsyncRequest" /> that can be used for canceling a pending
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/// request. This handle can be completely ignored if there is no intention of ever
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/// canceling the request.
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/// </returns>
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public IAsyncRequest Match(MapMatchingResource match, Action<MapMatchingResponse> callback)
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{
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string url = match.GetUrl();
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return _fileSource.Request(
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url,
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(Response response) =>
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{
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var str = Encoding.UTF8.GetString(response.Data);
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var data = Deserialize<MapMatchingResponse>(str);
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if (response.HasError)
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{
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data.SetRequestExceptions(response.Exceptions);
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}
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callback(data);
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},
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_timeout
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);
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}
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/// <summary>
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/// Deserialize the map match response string into a <see cref="MapMatchingResponse"/>.
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/// </summary>
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/// <param name="str">JSON String.</param>
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/// <returns>A <see cref="MapMatchingResponse"/>.</returns>
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/// <typeparam name="T">Map Matcher. </typeparam>
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internal T Deserialize<T>(string str)
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{
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return JsonConvert.DeserializeObject<T>(str, JsonConverters.Converters);
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}
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}
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}
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