} // getBufferedReader
public static void copy(NInputStream from_stream, NOutputStream to_stream) // throws IllegalStateException
{
try
{
byte[] buffer = new byte[1024 * 32];
int offset = 0;
for (int value = from_stream.Read(buffer, offset++, 1); value != -1; value = from_stream.Read(buffer, offset++, 1))
{
to_stream.Write(buffer, 0, value);
}
}
catch (IOException e)
{
throw new InvalidOperationException(e.Message);
}
}
} // getWriter()
//public static StreamWriter getWriter(NOutputStream file, String encoding) // throws IllegalStateException
//{
// return getWriter(file, encoding, false);
//} // getWriter()
public static StreamReader getReader(NInputStream input_stream, String encoding_arg) // throws IllegalStateException
{
Encoding encoding_obj = null;
try
{
if (encoding_arg == null || encoding_arg.ToLower().IndexOf("utf") != -1)
{
byte[] bom = new byte[4];
int unread;
// auto-detect byte-order-mark
//@SuppressWarnings("resource")
NInputStream pushbackInputStream = new NInputStream(input_stream.SafeFileHandle, FileAccess.Read, bom.Length);
int n = pushbackInputStream.Read(bom, 0, bom.Length);
// Read ahead four bytes and check for BOM marks.
if ((bom[0] == (byte)0xEF) && (bom[1] == (byte)0xBB) && (bom[2] == (byte)0xBF))
{
encoding_arg = "UTF-8";
unread = n - 3;
encoding_obj = Encoding.UTF8;
}
else if ((bom[0] == (byte)0xFE) && (bom[1] == (byte)0xFF))
{
encoding_arg = "UTF-16BE";
unread = n - 2;
}
else if ((bom[0] == (byte)0xFF) && (bom[1] == (byte)0xFE))
{
encoding_arg = "UTF-16LE";
unread = n - 2;
}
else if ((bom[0] == (byte)0x00) && (bom[1] == (byte)0x00) && (bom[2] == (byte)0xFE) &&
(bom[3] == (byte)0xFF))
{
encoding_arg = "UTF-32BE";
encoding_obj = Encoding.UTF32;
unread = n - 4;
}
else if ((bom[0] == (byte)0xFF) && (bom[1] == (byte)0xFE) && (bom[2] == (byte)0x00) &&
(bom[3] == (byte)0x00))
{
encoding_obj = Encoding.UTF32;
encoding_arg = "UTF-32LE";
unread = n - 4;
}
else
{
unread = n;
}
if (unread > 0)
{
//pushbackInputStream.unread(bom, (n - unread), unread);
}
else if (unread < -1)
{
//pushbackInputStream.unread(bom, 0, 0);
}
input_stream = pushbackInputStream;
}
StreamReader inputStreamReader;
if (encoding_arg == null)
{
inputStreamReader = new StreamReader(input_stream);
}
else
{
if (encoding_obj != null)
{
inputStreamReader = new StreamReader(input_stream, encoding_obj);
}
else
{
throw new IOException("getReader(): Encoding not available");
}
}
return(inputStreamReader);
}
catch (IOException e)
{
throw new InvalidOperationException(e.Message);
}
} // getReader()
