ThymeleafConfiguration.java

package ca.intelliware.ihtsdo.mlds.config;

import org.apache.commons.lang.CharEncoding;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Description;
import org.springframework.context.support.ReloadableResourceBundleMessageSource;
import org.thymeleaf.spring4.SpringTemplateEngine;
import org.thymeleaf.spring4.view.ThymeleafViewResolver;
import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;

@Configuration
public class ThymeleafConfiguration {

    private final Logger log = LoggerFactory.getLogger(ThymeleafConfiguration.class);

    public ThymeleafConfiguration() {
    }

    @Bean
    @Description("Thymeleaf view resolver")
    public ThymeleafViewResolver thymeleafViewResolver() {
        ThymeleafViewResolver thymeleafViewResolver = new ThymeleafViewResolver();
        thymeleafViewResolver.setViewNames(new String[]{"error", "/tl/*"});
        thymeleafViewResolver.setTemplateEngine(templateEngine());
        thymeleafViewResolver.setCharacterEncoding(CharEncoding.UTF_8);
        return thymeleafViewResolver;
    }

    @Bean
    @Description("Thymeleaf template resolver serving HTML 5 emails")
    public ClassLoaderTemplateResolver emailTemplateResolver() {
        ClassLoaderTemplateResolver emailTemplateResolver = new ClassLoaderTemplateResolver();
        emailTemplateResolver.setPrefix("mails/");
        emailTemplateResolver.setSuffix(".html");
        emailTemplateResolver.setTemplateMode("HTML5");
        emailTemplateResolver.setCharacterEncoding(CharEncoding.UTF_8);
        emailTemplateResolver.setOrder(1);
        // TODO MLDS-20 MB push this into yml config?
        emailTemplateResolver.setCacheTTLMs(2000L);
        return emailTemplateResolver;
    }

    @Bean
    @Description("Thymeleaf template resolver serving HTML 5")
    public ClassLoaderTemplateResolver webTemplateResolver() {
    	ClassLoaderTemplateResolver webTemplateResolver = new ClassLoaderTemplateResolver();
        webTemplateResolver.setPrefix("templates/");
        webTemplateResolver.setSuffix(".html");
        webTemplateResolver.setTemplateMode("HTML5");
        webTemplateResolver.setCharacterEncoding(CharEncoding.UTF_8);
        webTemplateResolver.setOrder(2);
        return webTemplateResolver;
    }

    @Bean
    @Description("Thymeleaf template engine with Spring integration")
    public SpringTemplateEngine templateEngine() {
        SpringTemplateEngine templateEngine = new SpringTemplateEngine();
        templateEngine.addTemplateResolver(emailTemplateResolver());
        templateEngine.addTemplateResolver(webTemplateResolver());
        return templateEngine;
    }

    @Bean
    @Description("Spring mail message resolver")
    public MessageSource messageSource() {
        log.info("loading non-reloadable mail messages resources");
        ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
        messageSource.setBasename("classpath:/mails/messages/messages");
        messageSource.setDefaultEncoding(CharEncoding.UTF_8);
        // TODO MLDS-20 MB push this into yml config?
        messageSource.setCacheSeconds(1);
        return messageSource;
    }
}