TemporaryFile.cs

using System;
using System.IO;
using Waher.Events;
 
namespace Waher.Runtime.Temporary
{
    public class TemporaryFile : FileStream
    {
        public const int DefaultBufferSize = 16384;
 
        private string fileName;
        private bool deleteWhenDisposed = true;
 
        public TemporaryFile()
            : this(Path.GetTempFileName(), DefaultBufferSize)
        {
        }
 
        public TemporaryFile(string FileName)
            : this(FileName, DefaultBufferSize)
        {
        }
 
        public TemporaryFile(string FileName, int BufferSize)
            : base(FileName, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read, BufferSize, FileOptions.RandomAccess)
        {
            this.fileName = FileName;
        }
 
        public string FileName => this.fileName;
 
        public bool DeleteWhenDisposed
        {
            get => this.deleteWhenDisposed;
            set => this.deleteWhenDisposed = value;
        }
 
        protected override void Dispose(bool disposing)
        {
            base.Dispose(disposing);
 
            if (!(this.fileName is null))
            {
                if (this.deleteWhenDisposed)
                {
                    try
                    {
                        File.Delete(this.fileName);
                    }
                    catch (Exception ex)
                    {
                        Log.Exception(ex);
                    }
                }
 
                this.fileName = null;
            }
        }
    }
}