WebConfig.java

/*
 * Copyright 2010-2013 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 org.springframework.showcases.lite.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.mobile.device.DeviceResolverHandlerInterceptor;
import org.springframework.mobile.device.site.SitePreferenceHandlerInterceptor;
import org.springframework.mobile.device.site.SitePreferenceHandlerMethodArgumentResolver;
import org.springframework.mobile.device.view.LiteDeviceDelegatingViewResolver;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.servlet.config.annotation.*;
import org.thymeleaf.spring3.SpringTemplateEngine;
import org.thymeleaf.spring3.view.ThymeleafViewResolver;
import org.thymeleaf.templateresolver.ServletContextTemplateResolver;

import java.util.List;

/**
 * @author Roy Clarkson
 * @see WebMvcConfigurer
 */
@Configuration
@EnableWebMvc
@ComponentScan(basePackages = "org.springframework.showcases.lite")
public class WebConfig extends WebMvcConfigurerAdapter {

    // implementing WebMvcConfigurer

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new DeviceResolverHandlerInterceptor());
        registry.addInterceptor(new SitePreferenceHandlerInterceptor());
    }

    @Override
    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
        argumentResolvers.add(new SitePreferenceHandlerMethodArgumentResolver());
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
    }

    // additional webmvc-related beans

    @Bean
    public ServletContextTemplateResolver templateResolver() {
        ServletContextTemplateResolver resolver = new ServletContextTemplateResolver();
        resolver.setPrefix("/WEB-INF/templates/");
        resolver.setSuffix(".html");
        resolver.setTemplateMode("HTML5");
        return resolver;
    }

    @Bean
    public SpringTemplateEngine templateEngine() {
        SpringTemplateEngine engine = new SpringTemplateEngine();
        engine.setTemplateResolver(templateResolver());
        return engine;
    }

    @Bean
    public LiteDeviceDelegatingViewResolver liteDeviceDelegatingViewResolver() {
        ThymeleafViewResolver delegate = new ThymeleafViewResolver();
        delegate.setTemplateEngine(templateEngine());
        delegate.setOrder(1);
        LiteDeviceDelegatingViewResolver resolver = new LiteDeviceDelegatingViewResolver(delegate);
        resolver.setMobilePrefix("mobile/");
        resolver.setTabletPrefix("tablet/");
        return resolver;
    }

}