com.mnt.base.console.JettyController.java Source code

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Here is the source code for com.mnt.base.console.JettyController.java

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/**
 * $Revision: 1.0
 * $Date: 2013-5-21
 *
 * Copyright (C) 2013-2020 MNT. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package com.mnt.base.console;

import java.util.EnumSet;

import javax.servlet.DispatcherType;
import javax.servlet.Filter;
import javax.servlet.http.HttpServlet;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

import com.mnt.base.util.BaseConfiguration;
import com.mnt.base.web.servlets.AccessRouterServlet;

/**
 * <pre>
 * Setup the embed jetty server.
 * 
 * To make the server works, need to address the bean with id: actionControllerManager, @see AccessRouterServlet
 * 
 * Allow the extra servlet map configured as key: servletConfMap.
 * 
 * All beans set in @see BeanContext
 * 
 * All server properties please refer to the config phase @(jetty server related configurations) in server.conf
 * 
 * </pre>
 * 
 * @author Peng Peng
 * #date 2012-3-22
 *
 */
public final class JettyController extends AbstractJettyController implements Runnable {

    private static final Log log = LogFactory.getLog(JettyController.class);

    private static JettyController instance = new JettyController();

    private JettyController() {
        init();
    }

    protected void init() {
        log.info("Prepare to startup the Jetty Web Server...");
        super.init();

        final ServletContextHandler context = new ServletContextHandler(
                BaseConfiguration.isSessionEnabled() ? ServletContextHandler.SESSIONS
                        : ServletContextHandler.NO_SESSIONS);
        context.setContextPath("/");

        jettyServer.setHandler(context);
        context.addServlet(new ServletHolder(new AccessRouterServlet()), "/*");

        super.setupExternalConf(new ExternalConfSetter() {

            @Override
            public void addServlet(Class<HttpServlet> servletClass, String pathSpec) throws Exception {
                HttpServlet servlet = (HttpServlet) (servletClass.newInstance());
                context.addServlet(new ServletHolder(servlet), pathSpec);
            }

            @Override
            public void addFilter(Class<Filter> filterClass, String pathSpec) {
                context.addFilter(filterClass, pathSpec, EnumSet.of(DispatcherType.REQUEST));
            }
        });
    }

    @Override
    protected String contextPath() {
        return BaseConfiguration.getServerContextPath();
    }

    @Override
    public void run() {
        try {
            jettyServer.start();
            log.info("Jetty Web Server is started and running!");
            jettyServer.join();
        } catch (Exception e) {
            log.error("Fail to startup the jetty web server.", e);
        }
    }

    /**
     * Start the jetty server with the pre-configured properties.  
     * 
     */
    public static void startServer() {
        instance.start();
    }

    /**
     * Stop the jetty server.
     */
    public static void stopServer() {
        instance.stop();
    }

    /**
     * Get the jetty server state string.
     * 
     * @return
     */
    public static String getServerState() {
        return instance.jettyServer.getState();
    }
}