org.springframework.boot.autoconfigure.thymeleaf.AbstractThymeleafViewResolverConfiguration Maven / Gradle / Ivy
/*
* Copyright 2012-2016 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.boot.autoconfigure.thymeleaf;
import java.util.LinkedHashMap;
import org.thymeleaf.spring4.SpringTemplateEngine;
import org.thymeleaf.spring4.view.ThymeleafViewResolver;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.core.Ordered;
import org.springframework.util.MimeType;
/**
* Abstract base class for the configuration of a {@link ThymeleafViewResolver}.
*
* @author Andy Wilkinson
*/
abstract class AbstractThymeleafViewResolverConfiguration {
private final ThymeleafProperties properties;
private final SpringTemplateEngine templateEngine;
protected AbstractThymeleafViewResolverConfiguration(ThymeleafProperties properties,
SpringTemplateEngine templateEngine) {
this.properties = properties;
this.templateEngine = templateEngine;
}
@Bean
@ConditionalOnMissingBean(name = "thymeleafViewResolver")
@ConditionalOnProperty(name = "spring.thymeleaf.enabled", matchIfMissing = true)
public ThymeleafViewResolver thymeleafViewResolver() {
ThymeleafViewResolver resolver = new ThymeleafViewResolver();
configureTemplateEngine(resolver, this.templateEngine);
resolver.setCharacterEncoding(this.properties.getEncoding().name());
resolver.setContentType(appendCharset(this.properties.getContentType(),
resolver.getCharacterEncoding()));
resolver.setExcludedViewNames(this.properties.getExcludedViewNames());
resolver.setViewNames(this.properties.getViewNames());
// This resolver acts as a fallback resolver (e.g. like a
// InternalResourceViewResolver) so it needs to have low precedence
resolver.setOrder(Ordered.LOWEST_PRECEDENCE - 5);
resolver.setCache(this.properties.isCache());
return resolver;
}
protected abstract void configureTemplateEngine(ThymeleafViewResolver resolver,
SpringTemplateEngine templateEngine);
private String appendCharset(MimeType type, String charset) {
if (type.getCharset() != null) {
return type.toString();
}
LinkedHashMap parameters = new LinkedHashMap();
parameters.put("charset", charset);
parameters.putAll(type.getParameters());
return new MimeType(type, parameters).toString();
}
}