WingDeviceService/Common/ConvertHelper.cs

using System;
using Newtonsoft.Json;
using System.Globalization;
using WingInterfaceLibrary.Enum;

namespace WingDeviceService.Common
{
    public static class ConvertHelper
    {
        /// <summary>
        /// convert object to Json string
        /// </summary>
        /// <param name="obj">object</param>
        /// <param name="formatting">format</param>
        /// <param name="settings">settings</param>
        /// <returns></returns>
        public static string ToJson(this object obj, Formatting formatting = Formatting.None, JsonSerializerSettings settings = null)
        {
            if (obj == null) return string.Empty;
            try
            {
                return JsonConvert.SerializeObject(obj, formatting, settings);
            }
            catch { return string.Empty; }
        }

        /// <summary>
        /// convert Json string to object
        /// </summary>
        /// <typeparam name="T">object type</typeparam>
        /// <param name="jsonStr">Json string</param>
        /// <param name="settings">settings</param>
        /// <returns></returns>
        public static T JsonToObj<T>(this string jsonStr, JsonSerializerSettings settings = null)
        {
            if (string.IsNullOrWhiteSpace(jsonStr)) return default(T);
            try
            {
                return JsonConvert.DeserializeObject<T>(jsonStr, settings);
            }
            catch(Exception ex)
            {
                Console.WriteLine(ex.Message);
                return default(T);
            }
        }

        /// <summary>
        /// convert Json string to object
        /// </summary>
        /// <param name="jsonStr">Json string</param>
        /// <param name="type">object type</param>
        /// <param name="settings">settings</param>
        /// <returns></returns>
        public static object JsonToObj(this string jsonStr, Type type, JsonSerializerSettings settings = null)
        {
            if (string.IsNullOrWhiteSpace(jsonStr)) return type.IsValueType ? Activator.CreateInstance(type) : null;
            try
            {
                return JsonConvert.DeserializeObject(jsonStr, type, settings);
            }
            catch { return type.IsValueType ? Activator.CreateInstance(type) : null; }
        }
        /// <summary>
        /// convert sting to int
        /// </summary>
        /// <param name="str">string</param>
        /// <param name="defaultValue">default Value</param>
        /// <returns></returns>
        public static int ToInt(this string str, int defaultValue = 0)
        {
            if (string.IsNullOrWhiteSpace(str)) return defaultValue;
            int.TryParse(str, out defaultValue);
            return defaultValue;
        }

        public static double ToDouble(this string str, double defaultValue = 0)
        {
            if (string.IsNullOrWhiteSpace(str)) return defaultValue;
            double.TryParse(str, out defaultValue);
            return defaultValue;
        }

        /// <summary>
        /// convert sting to float
        /// </summary>
        /// <param name="str"></param>
        /// <param name="defaultValue"></param>
        /// <returns></returns>
        public static float ToFloat(this string str, float defaultValue = 0)
        {
            if (string.IsNullOrWhiteSpace(str)) return defaultValue;
            float.TryParse(str, out defaultValue);
            return defaultValue;
        }

        /// <summary>
        /// convert sting to DateTime
        /// </summary>
        /// <param name="str"></param>
        /// <param name="defaultValue"></param>
        /// <returns></returns>
        public static DateTime ToDateTime(this string str)
        {
            DateTime defaultValue;
            if (string.IsNullOrWhiteSpace(str)) return DateTime.MinValue;
            DateTime.TryParse(str, out defaultValue);
            return defaultValue;
        }

        /// <summary>
        /// convert sting to int
        /// </summary>
        /// <param name="str">string</param>
        /// <param name="defaultValue">default Value</param>
        /// <returns></returns>
        public static long ToLong(this string str, long defaultValue = 0)
        {
            if (string.IsNullOrWhiteSpace(str)) return defaultValue;
            long.TryParse(str, out defaultValue);
            return defaultValue;
        }

        /// <summary>
        /// Convert string to other type object
        /// </summary>
        /// <param name="str">string</param>
        /// <param name="type">type</param>
        /// <returns></returns>
        public static object ToObject(this string str, Type type)
        {
            try
            {
                return Convert.ChangeType(str, type, CultureInfo.InvariantCulture);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                return type.IsValueType ? Activator.CreateInstance(type) : null;
            }
        }

        /// <summary>
        /// convert sting to Boolean
        /// </summary>
        /// <param name="str">sting</param>
        /// <returns></returns>
        public static bool ToBool(this string str)
        {
            if (string.IsNullOrWhiteSpace(str)) return false;
            bool.TryParse(str, out bool val);
            return val;
        }

        /// <summary>
        /// 验证是否为空
        /// </summary>
        /// <param name="str">sting</param>
        /// <returns>true</returns>
        public static bool IsEmpty(this string str)
        {
            if (string.IsNullOrWhiteSpace(str))
            {
                return true;
            }
            return false;
        }

        /// <summary>
        /// 时间转长整形的时间戳
        /// </summary>
        /// <param name="time">当前时间</param>
        /// <param name="isUtc">是否utc格式时间戳</param>
        /// <returns>true</returns>
        public static long ToTimestamp(this DateTime time, bool isUtc = false)
        {
            DateTime refTime = TimeZoneInfo.ConvertTimeFromUtc(new DateTime(1970, 1, 1), TimeZoneInfo.Utc);
            var diffSpan = (isUtc ? time : time.ToUniversalTime()) - refTime;
            long unixTime = (long)Math.Round(diffSpan.TotalMilliseconds, MidpointRounding.AwayFromZero);
            return unixTime;
        }

        
        /// <summary>
        /// url转token
        /// </summary>
        /// <param name="url">url地址</param>
        /// <returns>true</returns>
        public static string ToUrlToken(this string url)
        {
            string fileToken = "";
            if (string.IsNullOrWhiteSpace(url))
            {
                return fileToken;
            }
            var fileName = "";
            if (url.Contains("http://") || url.Contains("https://"))
            {
                fileToken = TransferUrlToToken(url);
                return fileToken;
            }
            else
            {
                fileName = url;
            }
            //处理 传的是token 的情况
            if (string.IsNullOrEmpty(fileName))
            {
                return fileToken;
            }
            if (fileName.Split('.').Length > 1)
            {
                int lastIndex = fileName.LastIndexOf('.');
                var fileExtend = fileName.Substring(lastIndex + 1);
                try
                {
                    var fileTypeEnum = (WingInterfaceLibrary.Enum.UploadFileTypeEnum)Enum.Parse(typeof(WingInterfaceLibrary.Enum.UploadFileTypeEnum), fileExtend.ToUpper());
                    var fileType = Enum.GetName(typeof(WingInterfaceLibrary.Enum.UploadFileTypeEnum), fileTypeEnum.GetHashCode());
                    if (!string.IsNullOrEmpty(fileType))
                    {
                        fileName = fileName.Substring(0, lastIndex);
                    }
                    else
                    {
                        fileName = "";
                    }
                }
                catch (Exception ex)
                {
                    fileName = "";
                }
            }
            if (fileName.Split('_').Length > 1)
            {
                fileToken = fileName;
            }
            return fileToken;
        }

/// <summary>
        /// url转token
        /// </summary>
        /// <param name="url">url地址</param>
        /// <returns>true</returns>
        private static string TransferUrlToToken(string url)
        {
            //需要做处理
            var newUrl = url.Replace("http://", "").Replace("https://", "");
            var urlArray = newUrl.Split('/');
            var storageServer = WingServerCommon.Config.ConfigurationManager.GetParammeter<WingServerCommon.Config.Parameters.StringParameter>("Storage", "StorageServer").Value;
            if (storageServer == "COS") {
                if (urlArray.Length >= 2)
                {
                    var storageSettingsParam = WingServerCommon.Config.ConfigurationManager.StorageSettings;
                    var fileName = storageSettingsParam.CDNServerUrl + "/" + urlArray[1];
                    return fileName;
                }
                else {
                    return url;
                }
            }
            else {
                return url;
            }
        }     

    }
}