// $Id: ThreadHelper.java 43 2010-04-03 20:28:12Z marcusvnac $
// Copyright (c) 2008 The Regents of the University of California. All
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// software and its documentation without fee, and without a written
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// and this paragraph appear in all copies. This software program and
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package org.argouml.util;

import java.lang.reflect.InvocationTargetException;

import javax.swing.SwingUtilities;

import org.argouml.model.Model;

/**
 * Helper methods for tests which need to deal with threads.  Not intended for
 * use in applications.
 * 
 * @author Tom Morris <tfmorris@gmail.com>
 */
public class ThreadHelper {

    /**
     * Wait for all events to be delivered on the MDR event thread and on the
     * AWT/Swing event thread.
     * 
     * @throws InterruptedException if we were interrupted while waiting for the
     *             AWT thread to sync
     * @throws InvocationTargetException should never happen. Indicates an
     *             internal error.
     */
    public static void synchronize() throws InterruptedException, 
    InvocationTargetException {
        
        // Wait for all Model subsystem events to be delivered
        Model.getPump().flushModelEvents();

        // Wait for all AWT events to be dispatched and processed
        Runnable doWorkRunnable = new Runnable() {
            public void run() {
            }  
        };
        SwingUtilities.invokeAndWait(doWorkRunnable);
    }
}