/
ThymeleafConfiguration.java
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/
ThymeleafConfiguration.java
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package se.ivankrizsan.java.messagepayloadswiththymeleaf;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.thymeleaf.spring5.SpringTemplateEngine;
import org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver;
import java.util.Collection;
import java.util.Collections;
/**
* Thymeleaf configuration for the message payloads example.
*
* @author Ivan Krizsan
*/
@Configuration
public class ThymeleafConfiguration {
/* Constant(s): */
/**
* Path to root package/directory in which the different types of message
* templates are found.
*/
public static final String TEMPLATES_BASE = "classpath:/templates/";
/** Pattern relative to templates base used to match XML templates. */
public static final String XML_TEMPLATES_RESOLVE_PATTERN = "xml/*";
/** Pattern relative to templates base used to match JSON templates. */
public static final String JSON_TEMPLATES_RESOLVE_PATTERN = "json/*";
/** Pattern relative to templates base used to match text templates. */
public static final String TEXT_TEMPLATES_RESOLVE_PATTERN = "text/*";
/* Parameter keys for all the message templates. */
public static final String TEMPLATE_FROMCURRENCY_PARAM = "from_currency";
public static final String TEMPLATE_TOCURRENCY_PARAM = "to_currency";
/* Instance variable(s): */
/**
* Creates the template resolver that retrieves XML message payloads.
*
* @return Template resolver.
*/
@Bean
public SpringResourceTemplateResolver xmlMessageTemplateResolver() {
SpringResourceTemplateResolver theResourceTemplateResolver =
new SpringResourceTemplateResolver();
theResourceTemplateResolver.setPrefix(TEMPLATES_BASE);
theResourceTemplateResolver.setResolvablePatterns(
Collections.singleton(XML_TEMPLATES_RESOLVE_PATTERN));
theResourceTemplateResolver.setSuffix(".xml");
theResourceTemplateResolver.setTemplateMode("xml");
theResourceTemplateResolver.setCharacterEncoding("UTF-8");
theResourceTemplateResolver.setCacheable(false);
theResourceTemplateResolver.setOrder(1);
return theResourceTemplateResolver;
}
/**
* Creates the template resolver that retrieves JSON message payloads.
*
* @return Template resolver.
*/
@Bean
public SpringResourceTemplateResolver jsonMessageTemplateResolver() {
SpringResourceTemplateResolver theResourceTemplateResolver =
new SpringResourceTemplateResolver();
theResourceTemplateResolver.setPrefix(TEMPLATES_BASE);
theResourceTemplateResolver.setResolvablePatterns(
Collections.singleton(JSON_TEMPLATES_RESOLVE_PATTERN));
theResourceTemplateResolver.setSuffix(".json");
/*
* There is no json template mode so the next line has
* been commented out. Thymeleaf will recognize the
* ".json" template resource suffix so there is no need
* to set a template mode.
*/
// theResourceTemplateResolver.setTemplateMode("json");
theResourceTemplateResolver.setCharacterEncoding("UTF-8");
theResourceTemplateResolver.setCacheable(false);
theResourceTemplateResolver.setOrder(2);
return theResourceTemplateResolver;
}
/**
* Creates the template resolver that retrieves text message payloads.
*
* @return Template resolver.
*/
@Bean
public SpringResourceTemplateResolver textMessageTemplateResolver() {
SpringResourceTemplateResolver theResourceTemplateResolver =
new SpringResourceTemplateResolver();
theResourceTemplateResolver.setPrefix(TEMPLATES_BASE);
theResourceTemplateResolver.setResolvablePatterns(
Collections.singleton(TEXT_TEMPLATES_RESOLVE_PATTERN));
theResourceTemplateResolver.setSuffix(".txt");
theResourceTemplateResolver.setTemplateMode("text");
theResourceTemplateResolver.setCharacterEncoding("UTF-8");
theResourceTemplateResolver.setCacheable(false);
theResourceTemplateResolver.setOrder(3);
return theResourceTemplateResolver;
}
/**
* Creates the template engine for all message templates.
*
* @param inTemplateResolvers Template resolver for different types of messages etc.
* Note that any template resolvers defined elsewhere will also be included in this collection.
* @return Template engine.
*/
@Bean
public SpringTemplateEngine messageTemplateEngine(
final Collection<SpringResourceTemplateResolver> inTemplateResolvers) {
final SpringTemplateEngine theTemplateEngine = new SpringTemplateEngine();
for (SpringResourceTemplateResolver theTemplateResolver : inTemplateResolvers) {
theTemplateEngine.addTemplateResolver(theTemplateResolver);
}
return theTemplateEngine;
}
}