--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/traceviewer/com.nokia.traceviewer/src/com/nokia/traceviewer/action/TraceViewerAction.java	Wed Jun 23 14:49:59 2010 +0300
@@ -0,0 +1,70 @@
+/*
+ * 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:
+ *
+ * Base class for all action objects of Trace Viewer view
+ *
+ */
+package com.nokia.traceviewer.action;
+
+import org.eclipse.jface.action.Action;
+
+import com.nokia.traceviewer.engine.TraceViewerGlobals;
+
+/**
+ * Base class for all action objects of Trace Viewer view
+ * 
+ */
+abstract class TraceViewerAction extends Action {
+
+	/**
+	 * Constructor
+	 */
+	protected TraceViewerAction() {
+	}
+
+	/**
+	 * Constructor with action type
+	 * 
+	 * @param type
+	 *            the action type
+	 */
+	protected TraceViewerAction(int type) {
+		super("", type); //$NON-NLS-1$
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see org.eclipse.jface.action.IAction#run()
+	 */
+	@Override
+	public void run() {
+		if (TraceViewerGlobals.getTraceProvider() != null) {
+			doRun();
+		} else {
+			String providerMissingMsg = Messages
+					.getString("TraceViewerAction.ProviderMissingError"); //$NON-NLS-1$
+
+			// Show message that trace provider is missing
+			TraceViewerGlobals.getTraceViewer().getDialogs().showErrorMessage(
+					providerMissingMsg);
+		}
+	}
+
+	/**
+	 * Runs this action
+	 */
+	protected abstract void doRun();
+}