Thymeleafプラグインのテンプレートエンジンプロバイダ

DefaultTemplateEngineProvider

package org.codework.struts.plugins.thymeleaf.spi;

import org.codework.struts.plugins.thymeleaf.StrutsMessageResolver;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.templateresolver.ServletContextTemplateResolver;

import com.opensymphony.xwork2.inject.Inject;

/**
 * A default implementation of {@link TemplateEngineProvider}.
 *
 * @author Steven Benitez / Updated A-pZ(Koji.Azuma)
 * @since 2.3.15
 * @version 2.3.16.3
 */
public class DefaultTemplateEngineProvider implements TemplateEngineProvider {
	private TemplateEngine templateEngine;

	public DefaultTemplateEngineProvider() {
	}

	/**
	 * Setting struts.properties.
	 */
	public void configure() {
		ServletContextTemplateResolver templateResolver = new ServletContextTemplateResolver();
		// HTML5 is the future!
		templateResolver.setTemplateMode("HTML5");

		// This will convert "home" to "/WEB-INF/templates/home.html"
		// templateResolver.setPrefix("/WEB-INF/templates/");
		// templateResolver.setSuffix(".html");
		templateResolver.setPrefix(prefix);
		templateResolver.setSuffix(suffix);

		templateResolver.setCacheable(cacheable);
		// Set template cache TTL to 1 hour. If not set, entries would live in
		// cache
		// until expelled by LRU
		templateResolver.setCacheTTLMs(cacheTTLMs);

		templateEngine = new TemplateEngine();
		templateEngine.setTemplateResolver(templateResolver);
		templateEngine.setMessageResolver(new StrutsMessageResolver());
	}

	@Inject(value = "struts.thymeleaf.prefix", required = false)
	public void setPrefix(String prefix) {
		this.prefix = prefix;
	}

	@Inject(value = "struts.thymeleaf.suffix", required = false)
	public void setSuffix(String suffix) {
		this.suffix = suffix;
	}

	@Inject(value = "struts.thymeleaf.cacheable", required = false)
	public void setCacheable(String cacheable) {
		this.cacheable = Boolean.parseBoolean(cacheable);
	}

	@Inject(value = "struts.thymeleaf.cacheTTLMs", required = false)
	public void setCacheTTLMs(String cacheTTLMs) {
		this.cacheTTLMs = Long.parseLong(cacheTTLMs);
	}

	@Override
	public TemplateEngine get() {

		if ( templateEngine == null ) {
			configure();
		}

		return templateEngine;
	}

	/**
	 * Template HTML file directory.
	 */
	private String prefix = "/WEB-INF/template/";

	/**
	 * Template HTML filename extension.
	 */
	private String suffix = ".html";

	/**
	 * Template cache enable.
	 */
	private boolean cacheable = false;

	/**
	 * Template cache life cycle.(msec)
	 */
	private Long cacheTTLMs = 3600000L;
}