diff -r ed1c9f64298a -r 5b9d4d8641ce trace/traceviewer/com.nokia.traceviewer/src/com/nokia/traceviewer/engine/FileMap.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/traceviewer/com.nokia.traceviewer/src/com/nokia/traceviewer/engine/FileMap.java	Wed Jun 23 14:49:59 2010 +0300
@@ -0,0 +1,98 @@
+/*
+ * 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:
+ *
+ * FileMap class
+ *
+ */
+package com.nokia.traceviewer.engine;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Hold information about trace block positions in file
+ * 
+ */
+public class FileMap {
+
+	/**
+	 * Map which holds the file pointers to messages
+	 */
+	private final List<Long> map;
+
+	/**
+	 * Constructor
+	 */
+	public FileMap() {
+		map = new ArrayList<Long>();
+	}
+
+	/**
+	 * Insert item to map
+	 * 
+	 * @param item
+	 *            item
+	 */
+	public void insert(Long item) {
+		map.add(item);
+	}
+
+	/**
+	 * Gets item from map
+	 * 
+	 * @param index
+	 *            index of item
+	 * @return item
+	 */
+	public Long getItem(int index) {
+		long item = 0;
+		if (index < 0) {
+			item = 0;
+		} else if (index > map.size() - 1) {
+			item = 0;
+		} else {
+			item = map.get(index).longValue();
+		}
+		return Long.valueOf(item);
+	}
+
+	/**
+	 * Gets index from map from specific offset
+	 * 
+	 * @param offset
+	 *            offset of item
+	 * @return index
+	 */
+	public int getIndexFromOffset(int offset) {
+		int index = (offset / TraceViewerGlobals.blockSize);
+		return index;
+	}
+
+	/**
+	 * Empties map
+	 */
+	public void clearMap() {
+		map.clear();
+	}
+
+	/**
+	 * Gets size of this map
+	 * 
+	 * @return size
+	 */
+	public int size() {
+		return map.size();
+	}
+}