io.gmind7.spring.foundation.config.WebAppInitializer.java Source code

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Here is the source code for io.gmind7.spring.foundation.config.WebAppInitializer.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 io.gmind7.spring.foundation.config;

import io.gmind7.spring.foundation.config.AppConfig;
import io.gmind7.spring.foundation.constant.EnvType;

import javax.servlet.ServletRegistration.Dynamic;

import org.springframework.util.ObjectUtils;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.filter.CharacterEncodingFilter;
import org.springframework.web.filter.HiddenHttpMethodFilter;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

    @Override
    protected WebApplicationContext createRootApplicationContext() {
        Class<?>[] rootConfigClasses = this.getRootConfigClasses();
        if (!ObjectUtils.isEmpty(rootConfigClasses)) {
            AnnotationConfigWebApplicationContext rootAppContext = new AnnotationConfigWebApplicationContext();
            String springProfilesActvie = rootAppContext.getEnvironment()
                    .getProperty(EnvType.SPRING_PROFILE_ACTIVE.getKey());
            if (springProfilesActvie == null)
                rootAppContext.getEnvironment().setActiveProfiles(EnvType.DEFAULT_ACTIVE_PROFILE.getKey());
            rootAppContext.register(rootConfigClasses);
            return rootAppContext;
        } else {
            return null;
        }
    }

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

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

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

    @Override
    protected javax.servlet.Filter[] getServletFilters() {

        CharacterEncodingFilter encodingFilter = new CharacterEncodingFilter();
        encodingFilter.setEncoding("UTF-8");
        encodingFilter.setForceEncoding(true);

        return new javax.servlet.Filter[] { encodingFilter, new HiddenHttpMethodFilter() };
    }

    @Override
    protected void customizeRegistration(Dynamic registration) {
        registration.setInitParameter("dispatchOptionsRequest", "true");
        registration.setAsyncSupported(true);
    }

}