diff -r 14dc2103a631 -r ed1c9f64298a trace/tracebuilder/com.nokia.tracebuilder/src/com/nokia/tracebuilder/engine/plugin/PluginEngine.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/tracebuilder/com.nokia.tracebuilder/src/com/nokia/tracebuilder/engine/plugin/PluginEngine.java	Wed Jun 23 14:35:40 2010 +0300
@@ -0,0 +1,216 @@
+/*
+* Copyright (c) 2007 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:
+*
+* Export plugin manager, which delegates calls to plug-ins
+*
+*/
+package com.nokia.tracebuilder.engine.plugin;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import com.nokia.tracebuilder.engine.TraceBuilderConfiguration;
+import com.nokia.tracebuilder.engine.TraceBuilderEngine;
+import com.nokia.tracebuilder.engine.TraceBuilderErrorMessages;
+import com.nokia.tracebuilder.engine.TraceBuilderGlobals;
+import com.nokia.tracebuilder.engine.TraceBuilderErrorCodes.TraceBuilderErrorCode;
+import com.nokia.tracebuilder.model.TraceBuilderException;
+import com.nokia.tracebuilder.model.TraceModel;
+import com.nokia.tracebuilder.model.TraceObjectPropertyVerifier;
+import com.nokia.tracebuilder.plugin.TraceAPIPlugin;
+import com.nokia.tracebuilder.plugin.TraceBuilderExport;
+import com.nokia.tracebuilder.plugin.TraceBuilderImport;
+import com.nokia.tracebuilder.plugin.TraceBuilderPlugin;
+
+/**
+ * Plugin engine, which delegates calls to plug-ins
+ * 
+ */
+public final class PluginEngine extends TraceBuilderEngine {
+
+	/**
+	 * List of plug-ins
+	 */
+	private ArrayList<TraceBuilderPlugin> plugins = new ArrayList<TraceBuilderPlugin>();
+
+	/**
+	 * Property verifier
+	 */
+	private PluginTracePropertyVerifier verifier = new PluginTracePropertyVerifier(
+			this);
+
+	/**
+	 * Trace model
+	 */
+	private TraceModel model;
+
+	/**
+	 * Project open flag
+	 */
+	private boolean projectOpen;
+
+	/**
+	 * Sets the trace model. This is not set in constructor, since plug-in
+	 * engine is created before the model
+	 * 
+	 * @param model
+	 *            the trace model
+	 */
+	public void setModel(TraceModel model) {
+		this.model = model;
+	}
+
+	/**
+	 * Gets the started flag
+	 * 
+	 * @return true if started, false if not
+	 */
+	public boolean isProjectOpen() {
+		return projectOpen;
+	}
+
+	/**
+	 * Adds a plugin
+	 * 
+	 * @param plugin
+	 *            the plugin to be added
+	 */
+	public void add(TraceBuilderPlugin plugin) {
+		plugins.add(plugin);
+		if (plugin instanceof TraceAPIPlugin) {
+			TraceAPIPlugin api = (TraceAPIPlugin) plugin;
+			TraceAPIPluginManager manager = model
+					.getExtension(TraceAPIPluginManager.class);
+			manager.addFormatters(api.getFormatters());
+			manager.addParsers(api.getParsers());
+		}
+	}
+
+	/**
+	 * Removes a plugin
+	 * 
+	 * @param plugin
+	 *            the plugin to be removed
+	 */
+	public void remove(TraceBuilderPlugin plugin) {
+		// Formatters / parsers are not removed. Currently this is not a
+		// problem since plug-in's are removed only on shutdown
+		plugins.remove(plugin);
+	}
+
+	/**
+	 * Gets the property verifier interface
+	 * 
+	 * @return the verifier
+	 */
+	public TraceObjectPropertyVerifier getVerifier() {
+		return verifier;
+	}
+
+	/**
+	 * Checks if there are plug-ins
+	 * 
+	 * @return true if plug-ins exist
+	 */
+	public boolean hasPlugins() {
+		return !plugins.isEmpty();
+	}
+
+	/**
+	 * Gets the plug-ins
+	 * 
+	 * @return the plug-ins
+	 */
+	Iterator<TraceBuilderPlugin> getPlugins() {
+		return plugins.iterator();
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see com.nokia.tracebuilder.engine.TraceBuilderEngine#projectExporting()
+	 */
+	@Override
+	public void exportProject() {
+		if (model.hasTraces()) {
+			for (TraceBuilderPlugin plugin : plugins) {
+				if (plugin instanceof TraceBuilderExport) {
+					try {
+						((TraceBuilderExport) plugin).exportTraceProject();
+					} catch (TraceBuilderException e) {
+						TraceBuilderGlobals.getEvents().postError(e);
+					}
+				}
+			}
+		} else {
+			TraceBuilderGlobals.getEvents().postInfoMessage(
+					TraceBuilderErrorMessages.getErrorMessage(
+							TraceBuilderErrorCode.NO_TRACES_TO_EXPORT, null),
+					null);
+		}
+	}
+
+	/**
+	 * Gets the list of TraceBuilderImport interfaces
+	 * 
+	 * @return the import interfaces
+	 */
+	public List<TraceBuilderImport> getImports() {
+		ArrayList<TraceBuilderImport> list = new ArrayList<TraceBuilderImport>();
+		for (TraceBuilderPlugin plugin : plugins) {
+			if (plugin instanceof TraceBuilderImport) {
+				list.add((TraceBuilderImport) plugin);
+			}
+		}
+		return list;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see com.nokia.tracebuilder.engine.TraceBuilderEngine#projectOpened()
+	 */
+	@Override
+	public void projectOpened() {
+		if (!projectOpen) {
+			for (TraceBuilderPlugin plugin : plugins) {
+				plugin.traceProjectOpened(model);
+			}
+			projectOpen = true;
+		} else {
+			if (TraceBuilderConfiguration.ASSERTIONS_ENABLED) {
+				TraceBuilderGlobals.getEvents().postAssertionFailed(
+						"PluginEngine.traceProjectOpened", null); //$NON-NLS-1$
+			}
+		}
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see com.nokia.tracebuilder.engine.TraceBuilderEngine#projectClosing()
+	 */
+	@Override
+	public void projectClosed() {
+		if (projectOpen) {
+			for (TraceBuilderPlugin plugin : plugins) {
+				plugin.traceProjectClosed();
+			}
+			projectOpen = false;
+		}
+	}
+
+}