--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/com/glavsoft/transport/Writer.java	Tue Jul 03 13:20:49 2012 +0900
@@ -0,0 +1,100 @@
+// Copyright (C) 2010, 2011 GlavSoft LLC.
+// All rights reserved.
+//
+//-------------------------------------------------------------------------
+// This file is part of the TightVNC software.  Please visit our Web site:
+//
+//                       http://www.tightvnc.com/
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//-------------------------------------------------------------------------
+//
+
+package com.glavsoft.transport;
+
+import com.glavsoft.exceptions.TransportException;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class Writer {
+	private final DataOutputStream os;
+
+	public Writer(OutputStream os) {
+		this.os = new DataOutputStream(os);
+	}
+
+	public void flush() throws TransportException {
+		try {
+			os.flush();
+		} catch (IOException e) {
+			throw new TransportException("Cannot flush output stream", e);
+		}
+	}
+
+	public void writeByte(int b) throws TransportException {
+		write((byte) (b & 0xff));
+	}
+
+	public void write(byte b) throws TransportException {
+		try {
+			os.writeByte(b);
+		} catch (IOException e) {
+			throw new TransportException("Cannot write byte", e);
+		}
+	}
+
+	public void writeInt16(int sh) throws TransportException {
+		write((short) (sh & 0xffff));
+	}
+
+	public void write(short sh) throws TransportException {
+		try {
+			os.writeShort(sh);
+		} catch (IOException e) {
+			throw new TransportException("Cannot write short", e);
+		}
+	}
+
+	public void writeInt32(int i) throws TransportException {
+		write(i);
+	}
+
+	public void write(int i) throws TransportException {
+		try {
+			os.writeInt(i);
+		} catch (IOException e) {
+			throw new TransportException("Cannot write int", e);
+		}
+	}
+
+	public void write(byte[] b) throws TransportException {
+		write(b, 0, b.length);
+	}
+
+	public void write(byte[] b, int length) throws TransportException {
+		write(b, 0, length);
+	}
+
+	public void write(byte[] b, int offset, int length)
+			throws TransportException {
+		try {
+			os.write(b, offset, length <= b.length ? length : b.length);
+		} catch (IOException e) {
+			throw new TransportException("Cannot write " + length + " bytes", e);
+		}
+	}
+}
\ No newline at end of file