de.interseroh.report.webapp.UiWebAppInitializer.java Source code

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Here is the source code for de.interseroh.report.webapp.UiWebAppInitializer.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.
 *
 * (c) 2015 - Interseroh and Crowdcode
 */
package de.interseroh.report.webapp;

import java.util.EnumSet;

import javax.servlet.DispatcherType;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.filter.DelegatingFilterProxy;
import org.springframework.web.servlet.DispatcherServlet;

import de.interseroh.report.webconfig.SecurityConfig;
import de.interseroh.report.webconfig.WebMvcConfig;

public class UiWebAppInitializer implements WebApplicationInitializer {

    private static final Logger logger = LoggerFactory.getLogger(UiWebAppInitializer.class);

    private static final String VIEWS_BASE = "/";

    private static final String DISPATCHER_SERVLET_NAME = "dispatcher";

    private static final String SPRING_SECURITY_FILTER_NAME = "springSecurityFilterChain";

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        logger.info("WebApp *report-cockpit-birt-web* starts...");

        WebApplicationContext rootContext = getRootContext();
        servletContext.addListener(new ContextLoaderListener(rootContext));
        servletContext.addListener(new SessionListener());

        addMvcServlet(servletContext);
        addSecurityFilter(servletContext);

        logger.info("WebApp *report-cockpit-birt-web* ready...");
    }

    private void addMvcServlet(ServletContext servletContext) {
        AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
        context.register(WebMvcConfig.class);

        DispatcherServlet dispatcherServlet = new DispatcherServlet(context);
        ServletRegistration.Dynamic dispatcher = servletContext.addServlet(DISPATCHER_SERVLET_NAME,
                dispatcherServlet);
        dispatcher.setLoadOnStartup(1);
        dispatcher.addMapping(VIEWS_BASE);
    }

    private void addSecurityFilter(ServletContext servletContext) {
        servletContext.addFilter(SPRING_SECURITY_FILTER_NAME, DelegatingFilterProxy.class).addMappingForUrlPatterns(
                EnumSet.<DispatcherType>of(DispatcherType.REQUEST, DispatcherType.FORWARD), false, "/*");
    }

    private AnnotationConfigWebApplicationContext getRootContext() {
        AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
        context.register(SecurityConfig.class);
        return context;
    }

}