WeldTerminationListenerProxy.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright [2016] [Payara Foundation and/or its affiliates]
 *
 * 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
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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package org.glassfish.weld;

import com.sun.enterprise.container.common.spi.util.InjectionException;
import com.sun.enterprise.container.common.spi.util.InjectionManager;
import javax.annotation.PostConstruct;
import javax.enterprise.inject.spi.BeanManager;
import javax.inject.Inject;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;
import org.glassfish.internal.api.Globals;
import org.glassfish.weld.util.Util;

/**
 * checks whether bean manager exists before calling the real listener
 * 
 * @author lprimak
 */
public class WeldTerminationListenerProxy implements HttpSessionListener {
    @PostConstruct
    private void init() {
        try {
            origTermListener = Globals.getDefaultHabitat().getService(InjectionManager.class)
                    .createManagedObject(Util.<HttpSessionListener>classForName(WeldDeployer.WELD_TERMINATION_LISTENER));
        } catch (InjectionException ex) {
            throw new RuntimeException(ex);
        }
    }

    @Override
    public void sessionCreated(HttpSessionEvent se) {
        if(bm != null) {
            origTermListener.sessionCreated(se);
        }
    }

    @Override
    public void sessionDestroyed(HttpSessionEvent se) {
        if(bm != null) {
            origTermListener.sessionDestroyed(se);
        }
    }
    
    
    @Inject
    private BeanManager bm;
    private HttpSessionListener origTermListener;
}