学習させることで、どんどん賢くなっていくLUISをbotサービスで活用するには：認識系API活用入門（終）（2/3 ページ）

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Net;
using System.Runtime.Serialization.Json;
 
namespace LUIS_WeatherBotApp.LUIS
{
    public class LUIS
    {
        //========================================================
        // LUISのデータを受け取るためのクラスたち
        //========================================================
        public class RootObject
        {
            public string query { get; set; }
            public List<Intents> intents { get; set; }
            public List<Entities> entities { get; set; }
        }
        public class Entities
        {
            public string entity { get; set; }
            public string type { get; set; }
            public string startIndex { get; set; }
            public string endIndex { get; set; }
            public string score { get; set; }
        }
 
        public class Intents
        {
            public string intent { get; set; }
            public string score { get; set; }
            public List<Actions> actions { get; set; }
        }
 
        public class Actions
        {
            public string triggered { get; set; }
            public string name { get; set; }
            public List<Parameters> parameters { get; set; }
        }
 
        public class Parameters
        {
            public string name { get; set; }
            public string required { get; set; }
            public List<Value> value { get; set; }
        }
 
        public class Value
        {
            public string entity { get; set; }
            public string type { get; set; }
            public string score { get; set; }
        }
 
 
        //========================================================
        // LUISの結果が入る
        //========================================================
        public RootObject LUISResult;
 
        //========================================================
        // コンストラクタ
        //========================================================
        public LUIS(string pMessage)
        {
            try
            {
                // LUISにbotで受信したメッセージを投げる 
                // string url にEndpoint URL を記載
                string url = "https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx?subscription-key=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&staging=true&verbose=true&timezoneOffset=0.0&q=";
                url += System.Web.HttpUtility.UrlEncode(pMessage);
 
                var request = (HttpWebRequest)WebRequest.Create(url);
 
                var response = request.GetResponse();
                var responseStream = response.GetResponseStream();
                if (responseStream == null)
                {
                    throw new Exception();
                }
 
                //受け取ったJsonをデシリアライズ
                DataContractJsonSerializer dcjs = new DataContractJsonSerializer(typeof(RootObject));
 
                LUISResult = (RootObject)dcjs.ReadObject(responseStream);
 
 
            }
            catch
            {
 
            }
        }
    }
}

using System;
using System.Threading.Tasks;
using Microsoft.Bot.Builder.Dialogs;
using Microsoft.Bot.Connector;
 
namespace LUIS_WeatherBotApp.Dialogs
{
    [Serializable]
    public class RootDialog : IDialog<object>
    {
        public Task StartAsync(IDialogContext context)
        {
            context.Wait(MessageReceivedAsync);
 
            return Task.CompletedTask;
        }
 
        private async Task MessageReceivedAsync(IDialogContext context, IAwaitable<object> result)
        {
            try
            { 
                var activity = await result as Activity;
 
                // -----------------------
                // LUIS
                // -----------------------
                string date = "";
                string prefecture = "";
 
                LUIS.LUIS luis = new LUIS.LUIS(activity.Text);
                if (luis.LUISResult == null)
                {
                    throw new Exception("もう一度お願いしします。");
                }
 
                foreach(LUIS.LUIS.Entities entities in luis.LUISResult.entities)
                {
                    switch (entities.type)
                    {
                        case "date":
                            date = entities.entity;
                            break;
 
                        case "prefecture":
                            prefecture = entities.entity;
                            break;
                    }
                }
 
                if (date == "" || prefecture == "")
                {
                    throw new Exception("もう一度お願いしします。");
                }
 
                // -----------------------
                // 天気予報の取得
                // -----------------------
                WeatherForecast.WeatherForecast weatherForecast = new WeatherForecast.WeatherForecast(prefecture);
 
                if (weatherForecast.weatherResult == null)
                {
                    throw new Exception("その場所の天気予報が取得できませんでした。");
                }
 
                WeatherForecast.WeatherForecast.Forecast forecast = null;
                switch (date)
                {
                    case "今日":
                    case "きょう":
                        forecast = weatherForecast.weatherResult.forecasts[0];
                        break;
                    case "明日":
                    case "あす":
                    case "あした":
                        forecast = weatherForecast.weatherResult.forecasts[1];
                        break;
                    case "明後日":
                    case "あさって":
                        forecast = weatherForecast.weatherResult.forecasts[2];
                        break;
                }
 
                if (forecast == null)
                {
                    throw new Exception("もう一度お願いしします。");
                }
 
                string replyMessage = "";
                replyMessage += forecast.dateLabel + "は\r\n";
                replyMessage += forecast.telop;
                if (forecast.temperature.min != null) replyMessage += "\r\n最低気温：" + forecast.temperature.min.celsius + "℃";
                if (forecast.temperature.max != null) replyMessage += "\r\n最高気温：" + forecast.temperature.max.celsius + "℃";
            
                await context.PostAsync(replyMessage);
                context.Wait(MessageReceivedAsync);
            }
            
            catch(Exception exception)
            {
                await context.PostAsync(exception.Message);
                context.Wait(MessageReceivedAsync);
            }
        }
    }
}