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307
Source/Program/Common/Lib/Util.cs
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307
Source/Program/Common/Lib/Util.cs
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/*-------------------------------------------------------------------------
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// UNCLASSIFIED
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/*-------------------------------------------------------------------------
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RAYTHEON PROPRIETARY: THIS DOCUMENT CONTAINS DATA OR INFORMATION
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PROPRIETARY TO RAYTHEON COMPANY AND IS RESTRICTED TO USE ONLY BY PERSONS
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AUTHORIZED BY RAYTHEON COMPANY IN WRITING TO USE IT. DISCLOSURE TO
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UNAUTHORIZED PERSONS WOULD LIKELY CAUSE SUBSTANTIAL COMPETITIVE HARM TO
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RAYTHEON COMPANY'S BUSINESS POSITION. NEITHER SAID DOCUMENT NOR ITS
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CONTENTS SHALL BE FURNISHED OR DISCLOSED TO OR COPIED OR USED BY PERSONS
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OUTSIDE RAYTHEON COMPANY WITHOUT THE EXPRESS WRITTEN APPROVAL OF RAYTHEON
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COMPANY.
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THIS PROPRIETARY NOTICE IS NOT APPLICABLE IF DELIVERED TO THE U.S.
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GOVERNMENT.
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UNPUBLISHED WORK - COPYRIGHT RAYTHEON COMPANY.
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-------------------------------------------------------------------------*/
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using System;
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using System.DirectoryServices;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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using NLog;
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namespace ProgramLib
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{
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/// <summary>
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/// Provides utility functions for other classes to use
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/// </summary>
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internal static class Util
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{
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/// <summary>
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/// Check if directory is empty
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/// </summary>
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public static bool IsDirectoryEmpty(string path)
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{
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return !Directory.EnumerateFileSystemEntries(path).Any();
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}
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/// <summary>
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/// Generate random fractional part
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/// </summary>
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public static float GenerateRandomFraction()
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{
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Random rnd = new Random();
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int randNum = 0;
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const int minimum = 1;
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randNum = rnd.Next(20);
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if (randNum <= minimum)
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{
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randNum += minimum;
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}
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return (float)(1.0 / (float)randNum);
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}
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/// <summary>
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/// Generate unique file name
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/// Format: [Prefix]_YYYY_MM_DD_HH_MM_SS.[ext]
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/// </summary>
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public static string GenerateUniqueFilenameUsingDateTime(string prefix, string fileExtension)
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{
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string filename = prefix + "_" + DateTime.Now.ToString("yyyy_MM_dd") + "_" + DateTime.Now.ToString("HH_mm_ss");
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if (fileExtension[0] != '.')
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{
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fileExtension = "." + fileExtension;
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}
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filename += fileExtension;
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return filename;
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}
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/// <summary>
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/// Log Exception
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/// </summary>
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public static string LogException(Exception ex, ILogger logger)
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{
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string errorMsg = ex.Message;
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string stackTrace = ex.StackTrace;
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Exception innerEx = ex.InnerException;
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while (innerEx != null)
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{
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errorMsg = innerEx.Message;
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stackTrace = innerEx.StackTrace + "\r\n" + stackTrace;
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innerEx = innerEx.InnerException;
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}
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logger.Error(errorMsg + "\r\n" + stackTrace);
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return errorMsg;
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}
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/// <summary>
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/// Auto format any numeric type to string
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/// </summary>
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/// <param name="wholeNumberMaxDigits">number of digits to display for the whole number before it display in scientific notation</param>
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public static string AutoFormatNumberToString<T>(T o, int wholeNumberMaxDigits = 3, int numDecimalPlaces = 2) where T : IConvertible
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{
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try
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{
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if (Convert.ChangeType(o, typeof(double)) is double @double)
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{
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string originalStr = @double.ToString("G"); // Most compact
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string tempStr = originalStr;
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int indexOfDecimalPoint = tempStr.IndexOf(".");
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if (indexOfDecimalPoint == -1)
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tempStr += ".0";
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indexOfDecimalPoint = tempStr.IndexOf(".");
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int tempStrIndex = 0;
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int indexOfMinusSign = tempStr.IndexOf("-");
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if (indexOfMinusSign != -1)
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tempStrIndex = 1;
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int wholeNumberNumDigits = tempStr.Substring(tempStrIndex, indexOfDecimalPoint - tempStrIndex).Length;
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int fractionalNumDigits = tempStr.Substring(indexOfDecimalPoint + 1, tempStr.Length - (indexOfDecimalPoint + 1)).Length;
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if (wholeNumberNumDigits > wholeNumberMaxDigits || tempStr.IndexOf("E") != -1)
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{
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string decimalPlaces = String.Empty;
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for (int i = 1; i <= numDecimalPlaces; i++)
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{
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decimalPlaces += "#";
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}
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var custom = @double.ToString($"0.{decimalPlaces}E0").Replace("E+", "E");
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while (custom.Contains("E0")) custom = custom.Replace("E0", "E");
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while (custom.Contains("-0")) custom = custom.Replace("-0", "-");
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if ((@double < 0) && custom[0] != '-')
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{
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custom.Insert(0, "-");
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}
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return custom;
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}
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else if (fractionalNumDigits > numDecimalPlaces)
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{
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return @double.ToString("0.##");
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}
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else
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{
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return originalStr;
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}
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}
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}
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catch { }
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return o.ToString();
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}
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/// <summary>
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/// Get full name of windows user
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/// </summary>
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public static string GetWindowsUserFullName(string domain, string userName)
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{
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string name = "";
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try
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{
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DirectoryEntry userEntry = new DirectoryEntry("WinNT://" + domain + "/" + userName + ",User");
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name = (string)userEntry.Properties["fullname"].Value;
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}
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catch
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{
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name = userName;
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}
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return name;
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}
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/// <summary>
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/// Convert struct to byte array
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/// </summary>
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public static byte[] StructToByteList<T>(T data)
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{
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int size = Marshal.SizeOf(data);
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byte[] arr = new byte[size];
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GCHandle h = default(GCHandle);
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try
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{
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h = GCHandle.Alloc(arr, GCHandleType.Pinned);
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Marshal.StructureToPtr(data, h.AddrOfPinnedObject(), false);
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}
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finally
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{
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if (h.IsAllocated)
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{
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h.Free();
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}
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}
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return arr;
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}
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/// <summary>
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/// Convert byte array to struct
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/// </summary>
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public static T ByteArrayToStruct<T>(byte[] array)
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{
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object obj;
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GCHandle h = default(GCHandle);
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try
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{
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h = GCHandle.Alloc(array, GCHandleType.Pinned);
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obj = Marshal.PtrToStructure(h.AddrOfPinnedObject(), typeof(T));
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}
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finally
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{
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if (h.IsAllocated)
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{
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h.Free();
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}
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}
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return (T)obj;
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}
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/// <summary>
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/// Get Two's Compliment Checksum
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/// </summary>
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public static byte GetTwosComplimentChecksum(byte[] array)
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{
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return (byte)(0x100u - ComputeSum(array));
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}
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/// <summary>
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/// Add up all bytes in a byte array
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/// </summary>
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public static byte ComputeSum(byte[] array)
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{
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byte sum = 0;
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for (int i = 0; i < array.Length; i++)
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sum += array[i];
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return sum;
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}
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/// <summary>
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/// Display each byte in byte array as hex string
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/// </summary>
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public static string ByteArrayToHexString(byte[] bytes, int numBytes = -1)
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{
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StringBuilder Result = new StringBuilder(bytes.Length * 2);
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string HexAlphabet = "0123456789ABCDEF";
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if (numBytes < 1)
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{
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numBytes = bytes.Length;
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}
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for (int i = 0; i < numBytes; i++)
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{
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Result.Append("0x" + HexAlphabet[(int)(bytes[i] >> 4)]);
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Result.Append(HexAlphabet[(int)(bytes[i] & 0xF)] + " ");
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}
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return Result.ToString();
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}
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/// <summary>
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/// Given a variable of type TimeSpan, describe the time in days, hours, mins, seconds
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/// </summary>
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public static string DescribeTimeElapsed(TimeSpan ts)
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{
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string describe = "";
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if (ts.Days > 0)
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describe += ts.Days.ToString() + " d";
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if (ts.Hours > 0)
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{
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if (describe.Length > 0)
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describe += " ";
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describe += ts.Hours.ToString() + " h";
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}
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if (ts.Minutes > 0)
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{
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if (describe.Length > 0)
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describe += " ";
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describe += ts.Minutes.ToString() + " m";
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}
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if (ts.Seconds > 0)
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{
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if (describe.Length > 0)
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describe += " ";
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describe += ts.Seconds.ToString() + " s";
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}
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if (describe.Length == 0)
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describe = "0 s";
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return describe;
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}
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}
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}
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