C#如何使用Java Enum

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C#如何使用Java Enum

因C#與Java語言特性不同的關係，在enum的使用上有很大的不同。
這邊提供方法相同，但寫法不同的範例提供參考。

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Java Enum example:

package com.commons.type;

import java.io.DataOutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.HashMap;
import java.util.Map;

import com.manager.ApacheHttpClientManager;
import com.util.LogUtils;

public enum TelegramBotType {

	Example("token_example", "chatid_example");

	private String token;

	private String chatId;

	private String messageUrl;

	TelegramBotType(String token, String chatId) {
		this.token = token;
		this.chatId = chatId;
		this.messageUrl = "https://api.telegram.org/bot" + token + "/sendMessage";
	}

	public void sendMessage(String msg, boolean isHTML) {
		// 如果沒有設定，改由log4j紀錄
		if (this.chatId == null || this.token == null || this.messageUrl == null) {
			LogUtils.telegramBot.info("Telegram " + this.name() + " : " + msg);
			return;
		}

		try {
			ApacheHttpClientManager.HttpPostRequest httpPostRequest = ApacheHttpClientManager.getInstance()
				.getHttpPostRequest(this.messageUrl);

			Map<String, String> postParam = new HashMap<>();
			postParam.put("chat_id", chatId);
			postParam.put("text", msg);
			if (isHTML) {
				postParam.put("parse_mode", "HTML");
			}
			httpPostRequest.setParameters(postParam);
			ApacheHttpClientManager.getInstance().execute(httpPostRequest);
		} catch (Exception e) {
			LogUtils.telegramBot.error("failure message transmission msg:" + msg + ", isHTML:" + isHTML, e);
		}
	}
}
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C# Enum example:

using Example.Source.Net.com.util;
using System;
using System.Collections.Specialized;

namespace Example.Source.Net.com.commons.type
{
    public sealed class TelegramBotType
    {
        private readonly string token;
        private readonly string chatId;
        private readonly string messageUrl;

        public static readonly TelegramBotType Example = new TelegramBotType("token_example", "chatid_example");

        private TelegramBotType(string token, string chatId)
        {
            this.token = token;
            this.chatId = chatId;
            messageUrl = "https://api.telegram.org/bot" + token + "/sendMessage";
        }

        public void sendMessage(string msg, int timeout)
        {
            // 如果沒有設定，改由log4j紀錄
            if (chatId == null || token == null || messageUrl == null)
            {
                LogUtil.logger.Warn("No Telegram Setting : " + msg);
                return;
            }

            try
            {
                var values = new NameValueCollection
                {
                    {"chat_id",  chatId},
                    {"text",  msg}
                };
                ApiServiceUtil.POST(messageUrl, values, timeout);
            }
            catch (Exception e)
            {
                LogUtil.logger.Error("failure message transmission msg:" + msg + ";" + Convert.ToString(e));
            }
        }
    }
}