xfox111/GZipCompression
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Merging to .NET Core 3.1 (#2)

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* Code refactoring

* Rebuilt project for .NET Core 3.1

* Updated code comments
This commit is contained in:
Michael Gordeev
2020-05-20 08:55:33 +03:00
committed by GitHub
parent 19f50bf499
commit 8eba1def4b
10 changed files with 326 additions and 465 deletions
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GZipTest/Program.cs
+60 -86
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@@ -3,99 +3,73 @@ using System.IO;
namespace GZipTest
{
class Program
{
static DateTime start = DateTime.Now;
static IProcessingModule module;
class Program
{
static IProcessingModule module;
static int Main(string[] args)
{
try
{
//Validating input parameters
if (args.Length != 3)
throw new InvalidDataException("Invalid parameters set.\nUsage: NewWinRar.exe [compress|decompress] [source file name] [destination file name]");
if (!File.Exists(args[1]))
throw new FileNotFoundException("The source file not found. Make sure it is place in the program's directory and has the same name. Stating extension is required");
static int Main(string[] args)
{
// Validating input parameters
if (args.Length < 1) // If there's no parameters provided, display help
{
DisplayHelp();
return 0;
}
//Instatiating module
switch (args[0].ToLower())
{
case "compress":
Console.WriteLine("Compressing file...");
module = new CompressionModule();
break;
case "decompress":
Console.WriteLine("Unpacking file...");
module = new DecompressionModule();
break;
default:
throw new InvalidDataException("Invalid parameter. The first parameter must be 'compress' or 'decompress'");
}
// Instatiating module
switch (args[0].ToLower())
{
case "compress":
Console.WriteLine("Compressing file...");
module = new CompressionModule();
break;
case "decompress":
Console.WriteLine("Unpacking file...");
module = new DecompressionModule();
break;
case "help":
DisplayHelp();
return 0;
default:
throw new InvalidDataException("Invalid parameter. The first parameter must be 'compress', 'decompress' or 'help'");
}
//Subscribing to events
module.ProgressChanged += SetProgress;
module.Complete += Complete;
module.ErrorOccured += Module_ErrorOccured;
if (args.Length < 3)
throw new InvalidDataException("Target file or destination file path missing. Type 'help' to get usage information");
if (!File.Exists(args[1]))
throw new FileNotFoundException("The source file not found. Check provided path and try again. Stating extension is required");
//Executing module
module.Run(args[1], args[2]);
//Executing module
module.Run(input: args[1],
output: args[2]);
return 0;
}
//Catching errors and displaying them
catch (Exception e)
{
Console.Error.WriteLine($"\n\n{e.ToString()}\n" + e.InnerException != null && e.InnerException != e ? $"\n{e.InnerException.ToString()}\n" : "");
return 1;
}
}
while (module.IsWorking); // Get UI thread busy while in progress
private static void Module_ErrorOccured(object sender, ErrorEventArgs e)
{
Console.Error.WriteLine("Error has occured. Threads tremination initiated");
Console.Error.WriteLine($"\n\n{e.GetException().ToString()}\n");
module.Complete -= Complete;
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
module.Stop();
}
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
/// <summary>
/// Displays complete message and post analysis
/// </summary>
/// <param name="size">Represents original file size in MB</param>
/// <param name="e">Not used</param>
private static void Complete(object size, EventArgs e)
{
TimeSpan elapsed = DateTime.Now - start;
Console.WriteLine($"\nDone\nProcessed {size} MB within {elapsed.Minutes} minutes {elapsed.Seconds} seconds\nPress any key to continue...");
Console.ReadKey();
}
return 0;
}
/// <summary>
/// Displaying progress bar which represents current workflow position
/// </summary>
/// <param name="percentage">Integer from 0 to 100. Represents amount of completed work</param>
public static void SetProgress(long done, long totalSegments)
{
TimeSpan elapsed = DateTime.Now - start;
//Border braces
Console.CursorLeft = 0;
Console.Write("[");
Console.CursorLeft = 21;
Console.Write("]");
/// <summary>
/// Displays program descriptions and usage instructions
/// </summary>
static void DisplayHelp()
{
Console.WriteLine("Compresses or decompresses files. Compressed archives cannot be opened with other archivers.\n");
Console.WriteLine("USAGE:\n" +
"GZipTest [OPERATION] [SOURCE] [TARGET]\n");
//Progress bar
for (int i = 0; i < done * 20 / totalSegments; i++)
{
Console.CursorLeft = i + 1;
Console.Write("■");
}
Console.WriteLine("Parameters:");
Console.WriteLine("OPERATION \t Operation which will be executed by the program - compression or decompression. Required.");
Console.WriteLine("\t Valid values: compress | decompress | help");
//Percentage
Console.CursorLeft = 23;
Console.Write($"{done * 100 / totalSegments}% {done} of {totalSegments} blocks [{elapsed.ToString(@"hh\:mm\:ss")}]");
}
}
}
Console.WriteLine("\nSOURCE \t\t Relative or absolute path to file which will be processed by the program. Required.");
Console.WriteLine("\nTARGET \t\t Relative or absolute path to destination file which will be created after the program work. Required.");
Console.WriteLine("\nPress any key to continue...");
Console.ReadKey();
}
}
}