using Npgsql;
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using System;
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using System.Collections.Generic;
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using System.Configuration;
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using System.Data.Common;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Runtime.Serialization;
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using System.Runtime.Serialization.Formatters.Binary;
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using System.Security.AccessControl;
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using System.Security.Principal;
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using System.Web;
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namespace ExportMap.cs
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{
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public class Tool
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{
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/// <summary>
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/// 基础目录
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/// </summary>
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public static readonly string BaseDir = AppDomain.CurrentDomain.BaseDirectory;
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/// <summary>
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/// 字节格式化
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/// </summary>
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public static string FormatBytes(long bytes)
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{
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string[] Suffix = { "Byte", "KB", "MB", "GB", "TB" };
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int i = 0;
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double dblSByte = bytes;
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if (bytes > 1024)
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for (i = 0; (bytes / 1024) > 0; i++, bytes /= 1024)
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dblSByte = bytes / 1024.0;
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return String.Format("{0:0.##}{1}", dblSByte, Suffix[i]);
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}
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/// <summary>
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/// 获取设置
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/// </summary>
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public static string GetSetting(string key)
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{
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return ConfigurationManager.AppSettings[key];
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}
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/// <summary>
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/// 获取Db参数
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/// </summary>
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public static List<DbParameter> GetParams<T>(string sql, T t)
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{
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List<DbParameter> list = new List<DbParameter>();
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Type tType = typeof(T);
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BindingFlags flags = BindingFlags.Public | BindingFlags.IgnoreCase | BindingFlags.Instance;
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int start = sql.IndexOf("@");
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while (start != -1)
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{
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int end = sql.IndexOf(",", start);
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if (end == -1) end = sql.IndexOf(")", start);
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if (end == -1) end = sql.IndexOf(" ", start);
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if (end == -1) end = sql.Length;
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string name = sql.Substring(start + 1, end - start - 1);
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PropertyInfo pi = tType.GetProperty(name, flags);
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if (pi != null)
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{
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object value = pi.GetValue(t, null);
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DbParameter dp = new NpgsqlParameter("@" + name, value);
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list.Add(dp);
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}
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start = sql.IndexOf("@", end);
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}
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return list;
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}
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/// <summary>
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/// 创建目录
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/// </summary>
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public static void CreateDirectory(string dir)
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{
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WindowsIdentity wi = WindowsIdentity.GetCurrent();
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FileSystemAccessRule rule = new FileSystemAccessRule(wi.User, FileSystemRights.FullControl, AccessControlType.Allow);
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DirectorySecurity ds = new DirectorySecurity();
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ds.AddAccessRule(rule);
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Directory.CreateDirectory(dir, ds);
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}
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/// <summary>
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/// 克隆对象
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/// </summary>
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public static T Clone<T>(T source) where T : new()
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{
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if (!typeof(T).IsSerializable)
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{
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throw new ArgumentException("The type must be serializable.", "source");
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}
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// Don't serialize a null object, simply return the default for that object
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if (Object.ReferenceEquals(source, null))
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{
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return default(T);
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}
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using (Stream stream = new MemoryStream())
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{
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IFormatter formatter = new BinaryFormatter();
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formatter.Serialize(stream, source);
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stream.Seek(0, SeekOrigin.Begin);
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return (T)formatter.Deserialize(stream);
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}
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}
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/// <summary>
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/// 执行Python
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/// </summary>
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/// <param name="cmd">命令行</param>
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/// <returns>执行结果或出错信息</returns>
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public static String ExecPython(string cmd)
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{
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string str = null;
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try
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{
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Process p = new Process();
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p.StartInfo.FileName = "cmd.exe";
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p.StartInfo.UseShellExecute = false;
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p.StartInfo.CreateNoWindow = true;
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p.StartInfo.RedirectStandardInput = true;
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p.StartInfo.RedirectStandardOutput = true;
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p.StartInfo.RedirectStandardError = true;
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p.Start();
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StreamWriter si = p.StandardInput; // 标准输入流
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StreamReader so = p.StandardOutput; // 标准输出流
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StreamReader se = p.StandardError; // 标准错误流
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LogOut.Info("cmd = " + cmd);
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si.AutoFlush = true;
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si.WriteLine("\"C:\\Program Files\\QGIS 3.16\\bin\\python-qgis-ltr.bat\"");
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si.WriteLine(cmd);
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si.WriteLine("exit");
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string info = so.ReadToEnd();
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str = se.ReadToEnd();
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if (!string.IsNullOrEmpty(info)) LogOut.Debug(info);
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if (!string.IsNullOrEmpty(str)) LogOut.Error(str);
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if (p.HasExited == false) p.Kill();
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se.Close();
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so.Close();
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si.Close();
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p.Close();
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}
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catch (Exception ex)
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{
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LogOut.Error(ex.StackTrace);
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str = ex.Message;
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}
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return str;
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}
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}
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}
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