/projects/netbeans-7.3/openide.actions/test/unit/src/org/openide/actions/ActionsInfraHid.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.
 * Other names may be trademarks of their respective owners.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common
 * Development and Distribution License("CDDL") (collectively, the
 * "License"). You may not use this file except in compliance with the
 * License. You can obtain a copy of the License at
 * http://www.netbeans.org/cddl-gplv2.html
 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
 * specific language governing permissions and limitations under the
 * License.  When distributing the software, include this License Header
 * Notice in each file and include the License file at
 * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the GPL Version 2 section of the License file that
 * accompanied this code. If applicable, add the following below the
 * License Header, with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 *
 * Contributor(s):
 *
 * The Original Software is NetBeans. The Initial Developer of the Original
 * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
 * Microsystems, Inc. All Rights Reserved.
 *
 * If you wish your version of this file to be governed by only the CDDL
 * or only the GPL Version 2, indicate your decision by adding
 * "[Contributor] elects to include this software in this distribution
 * under the [CDDL or GPL Version 2] license." If you do not indicate a
 * single choice of license, a recipient has the option to distribute
 * your version of this file under either the CDDL, the GPL Version 2 or
 * to extend the choice of license to its licensees as provided above.
 * However, if you add GPL Version 2 code and therefore, elected the GPL
 * Version 2 license, then the option applies only if the new code is
 * made subject to such option by the copyright holder.
 */

package org.openide.actions;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.ArrayList;
import java.util.List;

/** Utilities for actions tests.
 * @author Jesse Glick
 */
public abstract class ActionsInfraHid {

    private ActionsInfraHid() {}
    
    /** Prop listener that will tell you if it gets a change.
     * XXX replace with MockPropertyChangeListener
     */
    public static final class WaitPCL implements PropertyChangeListener {
        /** whether a change has been received, and if so count */
        public int gotit = 0;
        /** optional property name to filter by (if null, accept any) */
        private final String prop;
        public WaitPCL(String p) {
            prop = p;
        }
        public synchronized void propertyChange(PropertyChangeEvent evt) {
            if (prop == null || prop.equals(evt.getPropertyName())) {
                gotit++;
                notifyAll();
            }
        }
        public boolean changed() {
            return changed(1500);
        }
        public synchronized boolean changed(int timeout) {
            if (gotit > 0) {
                return true;
            }
            try {
                wait(timeout);
            } catch (InterruptedException ie) {
                ie.printStackTrace();
            }
            return gotit > 0;
        }
    }

    // Stolen from RequestProcessorTest.
    public static void doGC() {
        doGC(10);
    }
    public static void doGC(int count) {
        List<Object> l = new ArrayList<Object>(count);
        while (count-- > 0) {
            System.gc();
            System.runFinalization();
            l.add(new byte[1000]);
        }
    }
}