/* * Oscar - An implementation of the OSGi framework. * Copyright (c) 2004, Richard S. Hall * All rights reserved. *   * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: *   *   * Redistributions of source code must retain the above copyright *     notice, this list of conditions and the following disclaimer. *   * Redistributions in binary form must reproduce the above copyright *     notice, this list of conditions and the following disclaimer in *     the documentation and/or other materials provided with the *     distribution. *   * Neither the name of the ungoverned.org nor the names of its *     contributors may be used to endorse or promote products derived *     from this software without specific prior written permission. *   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *  * Contact: Richard S. Hall (heavy@ungoverned.org) * Contributor(s): ***/package org.ungoverned.oscar.util;import java.security.AccessController;import java.security.PrivilegedAction;import org.osgi.framework.Bundle;import org.osgi.framework.BundleEvent;import org.osgi.framework.BundleListener;import org.osgi.framework.SynchronousBundleListener;public class BundleListenerWrapper extends ListenerWrapper implements BundleListener{    public BundleListenerWrapper(Bundle bundle, BundleListener l)    {        super(bundle,            (l instanceof SynchronousBundleListener)                ? SynchronousBundleListener.class : BundleListener.class,            l);    }    public void bundleChanged(final BundleEvent event)    {        // A bundle listener is either synchronous or asynchronous.        // If the bundle listener is synchronous, then deliver the        // event to bundles with a state of STARTING, STOPPING, or        // ACTIVE. If the listener is asynchronous, then deliver the        // event only to bundles that are STARTING or ACTIVE.        if (((getListenerClass() == SynchronousBundleListener.class) &&            ((getBundle().getState() == Bundle.STARTING) ||            (getBundle().getState() == Bundle.STOPPING) ||            (getBundle().getState() == Bundle.ACTIVE)))            ||            ((getBundle().getState() == Bundle.STARTING) ||            (getBundle().getState() == Bundle.ACTIVE)))        {            if (System.getSecurityManager() != null)            {                AccessController.doPrivileged(new PrivilegedAction() {                    public Object run()                    {                        ((BundleListener) getListener()).bundleChanged(event);                        return null;                    }                });            }            else            {                ((BundleListener) getListener()).bundleChanged(event);            }        }    }}