Glassfish example source code file (WebConfigListener.java)

This example Glassfish source code file (WebConfigListener.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

accesslog, bean, configbeanproxy, httpservice, inject, inject, javabean, log, logging, managerproperties, networklistener, networklistener, override, override, property, property, t, util, virtualserver

The Glassfish WebConfigListener.java source code

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 * Copyright (c) 2008-2010 Oracle and/or its affiliates. All rights reserved.
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 * 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
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
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 * file and include the License file at packager/legal/LICENSE.txt.
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 * GPL Classpath Exception:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
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package com.sun.enterprise.web.reconfig;
                                                    
import com.sun.enterprise.config.serverbeans.AccessLog;
import com.sun.enterprise.config.serverbeans.HttpService;
import com.sun.enterprise.config.serverbeans.ManagerProperties;
import com.sun.enterprise.config.serverbeans.VirtualServer;
import com.sun.enterprise.config.serverbeans.WebContainerAvailability;
import com.sun.enterprise.v3.services.impl.MapperUpdateListener;
import com.sun.enterprise.web.WebContainer;
import com.sun.grizzly.config.dom.NetworkListener;
import com.sun.grizzly.config.dom.NetworkListeners;
import com.sun.grizzly.util.http.mapper.Mapper;
import org.apache.catalina.LifecycleException;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.config.*;
import org.jvnet.hk2.config.types.Property;

import java.beans.PropertyChangeEvent;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;


/**
 * Web container dynamic configuration handler
 *
 * @author amyroh
 */
public class WebConfigListener implements ConfigListener, MapperUpdateListener {

    @Inject
    public HttpService httpService;
    
    @Inject(optional=true)
    public AccessLog accessLog;
    
    @Inject(optional=true)
    public ManagerProperties managerProperties;

    @Inject(optional=true)
    public List<Property> property;

    @Inject(name="accessLoggingEnabled",optional=true)
    public Property accessLoggingEnabledProperty;

    @Inject(name="docroot",optional=true)
    public Property docroot;
    
    private WebContainer container;

    private Logger logger;

    volatile boolean received=false;
    
    /**
     * Set the Web Container for this ConfigListener.
     * Must be set in order to perform dynamic configuration
     * @param container the container to be set
     */
    public void setContainer(WebContainer container) {
        this.container = container;
    }

    public void setLogger(Logger logger) {
        this.logger = logger;
    }

    /**
     * Handles HttpService change events
     * @param events the PropertyChangeEvent
     */
    @Override
    public UnprocessedChangeEvents changed(PropertyChangeEvent[] events) {
        return ConfigSupport.sortAndDispatch(events, new Changed() {         
            @Override
            public <T extends ConfigBeanProxy> NotProcessed changed(TYPE type, Class tClass, T t) {
                if (logger.isLoggable(Level.FINE)) {
                    logger.fine("Web container config changed "+type+" "+tClass+" "+t);
                }
                try {
                    if (t instanceof NetworkListener) {
                        if (type==TYPE.ADD) {
                            container.addConnector((NetworkListener) t, httpService, true);
                        } else if (type==TYPE.REMOVE) {
                            container.deleteConnector((NetworkListener) t);
                        } else if (type==TYPE.CHANGE) {
                            container.updateConnector((NetworkListener) t, httpService);
                        }
                    } else if (t instanceof VirtualServer) {
                        if (type==TYPE.ADD) {
                            container.createHost((VirtualServer) t, httpService, null);
                            container.loadDefaultWebModule((VirtualServer) t);
                        } else if (type==TYPE.REMOVE) {
                            container.deleteHost(httpService);
                        } else if (type==TYPE.CHANGE) {
                            container.updateHost((VirtualServer)t);
                        }
                    } else if (t instanceof AccessLog) {
                        container.updateAccessLog(httpService);
                    } else if (t instanceof ManagerProperties) {
                        return new NotProcessed("ManagerProperties requires restart");
                    } else if (t instanceof WebContainerAvailability) {
                        // container.updateHttpService handles SingleSignOn valve configuration
                        container.updateHttpService(httpService);
                    } else if (t instanceof NetworkListeners) {
                        // skip updates
                    } else if (t instanceof Property) {
                        ConfigBeanProxy config = ((Property)t).getParent();
                        if (config instanceof HttpService) {
                            container.updateHttpService((HttpService)config);
                        } else if (config instanceof VirtualServer) {
                            container.updateHost((VirtualServer)config);
                        } else if (config instanceof NetworkListener) {
                            container.updateConnector((NetworkListener)config, httpService);
                        } else {
                            container.updateHttpService(httpService);
                        }
                    } else {
                        container.updateHttpService(httpService);
                    }
                } catch (LifecycleException le) {
                    logger.log(Level.SEVERE, "webcontainer.exceptionConfigHttpService", le);
                }
                return null;
            }
        }
        , logger);
    }

    @Override
    public void update(HttpService httpService, NetworkListener httpListener,
            Mapper mapper) {
        container.updateMapper(httpService, httpListener, mapper);
    }
}