MessageWebApplicationInitializer.java

/*
 * Copyright 2002-2013 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 sample.config;

import javax.servlet.Filter;

import org.springframework.core.annotation.Order;
import sample.mvc.config.WebMvcConfiguration;
import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.filter.HiddenHttpMethodFilter;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

/**
 * Initializes our Message's application by making Spring aware of all the
 * configuration and exposing the {@link DispatcherServlet} as the default
 * servlet.
 *
 * <p>
 * We add the {@link Order} annotation so that this is initialized before other
 * {@link WebApplicationInitializer} instances. This ensures the ordering of
 * Spring Security's Filter vs Filters registered in
 * {@link #getServletFilters()} is correct.
 *
 * @author Rob Winch
 */
@Order(1)
public class MessageWebApplicationInitializer extends
        AbstractAnnotationConfigDispatcherServletInitializer {

    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] { RootConfiguration.class };
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[] { WebMvcConfiguration.class };
    }

    @Override
    protected String[] getServletMappings() {
        return new String[] { "/" };
    }

    @Override
    protected Filter[] getServletFilters() {
        return new Filter[] { new HiddenHttpMethodFilter() };
    }
}