IFileWriter インターフェイス

public class FileWriter : FREngine.IFileWriter
{
 public FileWriter( string _resultsPath )
 {
  resultsPath = _resultsPath;
 }
 public void Open( string fileName, ref int bufferSize )
 {
  string resultsFilePath = resultsPath + fileName;
  stream = new FileStream( resultsFilePath, FileMode.Create );
 }
 public void Write( byte[] data )
 {
  stream.Write( data, 0, data.Length);
 }
 public void Close()
 {
  stream.Close();
 }
 private string resultsPath;
 private FileStream stream;
}