com.nebhale.cyclinglibrary.web.ApplicationInitializer.java Source code

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Here is the source code for com.nebhale.cyclinglibrary.web.ApplicationInitializer.java

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/*
 * Copyright 2013 the original author or authors.
 *
 * 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.nebhale.cyclinglibrary.web;

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

import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.filter.ShallowEtagHeaderFilter;
import org.springframework.web.servlet.DispatcherServlet;

import com.nebhale.cyclinglibrary.repository.RepositoryConfiguration;
import com.nebhale.cyclinglibrary.util.UtilConfiguration;

public final class ApplicationInitializer implements WebApplicationInitializer {

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
        rootContext.register(UtilConfiguration.class, RepositoryConfiguration.class);

        servletContext.addListener(new ContextLoaderListener(rootContext));

        AnnotationConfigWebApplicationContext webContext = new AnnotationConfigWebApplicationContext();
        webContext.register(WebConfiguration.class);

        ServletRegistration.Dynamic dispatcherServlet = servletContext.addServlet("dispatcher",
                new DispatcherServlet(webContext));
        dispatcherServlet.setLoadOnStartup(1);
        dispatcherServlet.addMapping("/");

        FilterRegistration.Dynamic gzipFilter = servletContext.addFilter("gzip", new GzipFilter());
        gzipFilter.addMappingForServletNames(null, false, "dispatcher");

        FilterRegistration.Dynamic eTagFilter = servletContext.addFilter("etag", new ShallowEtagHeaderFilter());
        eTagFilter.addMappingForServletNames(null, false, "dispatcher");
    }
}