VAR.DatabaseExplorer/VAR.DatabaseExplorer/Code/SplittingStreamWriter.cs

using System.IO;
using System.Text;

namespace VAR.DatabaseExplorer.Code
{
    class SplittingStreamWriter : TextWriter
    {
        private string _baseFileName = null;
        private int _fileNumber = 0;

        private StreamWriter _currentStreamWriter = null;

        public SplittingStreamWriter(string baseFileName)
        {
            _baseFileName = baseFileName;
            _currentStreamWriter = new StreamWriter(string.Format(_baseFileName, _fileNumber));
        }

        public override void Write(char value)
        {
            _currentStreamWriter.Write(value);
        }

        public override void Write(string value)
        {
            _currentStreamWriter.Write(value);
        }

        public override void WriteLine()
        {
            _currentStreamWriter.WriteLine();
        }

        public override void WriteLine(string value)
        {
            _currentStreamWriter.WriteLine(value);
        }

        public override Encoding Encoding
        {
            get { return Encoding.Default; }
        }

        public void Split()
        {
            _currentStreamWriter.Close();
            _fileNumber++;
            _currentStreamWriter = new StreamWriter(string.Format(_baseFileName, _fileNumber));
        }

        public static void Split(object obj)
        {
            SplittingStreamWriter splittingStreamWriter = obj as SplittingStreamWriter;
            if (obj == null) { return; }
            splittingStreamWriter.Split();
        }

        public override void Close()
        {
            _currentStreamWriter.Close();
            _currentStreamWriter = null;
            _fileNumber = 0;
        }
    }
}