diff -r ed1c9f64298a -r 5b9d4d8641ce trace/traceviewer/com.nokia.traceviewer.ost/src/com/nokia/traceviewer/ost/OstWriter.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/traceviewer/com.nokia.traceviewer.ost/src/com/nokia/traceviewer/ost/OstWriter.java	Wed Jun 23 14:49:59 2010 +0300
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies). 
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description:
+ *
+ * OST Writer
+ *
+ */
+package com.nokia.traceviewer.ost;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.channels.ByteChannel;
+
+import com.nokia.traceviewer.engine.DataWriter;
+
+/**
+ * OST Writer
+ * 
+ */
+public class OstWriter implements DataWriter {
+
+	/**
+	 * Target channel for write operations
+	 */
+	private ByteChannel writeChannel;
+
+	/**
+	 * Constructor
+	 * 
+	 * @param writeChannel
+	 *            write channel
+	 */
+	public OstWriter(ByteChannel writeChannel) {
+		this.writeChannel = writeChannel;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.nokia.traceviewer.engine.DataWriter#writeMessage(java.nio.ByteBuffer,
+	 * int, int)
+	 */
+	public void writeMessage(ByteBuffer sourceBuffer, int msgStart, int msgLen) {
+		try {
+			// Write the message to file
+			if (sourceBuffer != null && writeChannel != null) {
+				int position = sourceBuffer.position();
+				int limit = sourceBuffer.limit();
+				sourceBuffer.limit(msgStart + msgLen);
+				sourceBuffer.position(msgStart);
+				writeChannel.write(sourceBuffer);
+				sourceBuffer.limit(limit);
+				sourceBuffer.position(position);
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see com.nokia.traceviewer.engine.DataWriter#close()
+	 */
+	public void closeChannel() {
+		try {
+			if (writeChannel != null) {
+				writeChannel.close();
+				writeChannel = null;
+			}
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+}