com.arangodb.shaded.vertx.ext.web.common.template.CachingTemplateEngine Maven / Gradle / Ivy
/*
* Copyright 2014 Red Hat, Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* The Apache License v2.0 is available at
* http://www.opensource.org/licenses/apache2.0.php
*
* You may elect to redistribute this code under either of these licenses.
*/
package com.arangodb.shaded.vertx.ext.web.common.template;
import com.arangodb.shaded.vertx.core.Vertx;
import com.arangodb.shaded.vertx.core.shareddata.LocalMap;
import com.arangodb.shaded.vertx.ext.web.common.WebEnvironment;
import com.arangodb.shaded.vertx.ext.web.common.template.impl.TemplateHolder;
import java.util.Objects;
/**
* @author Tim Fox
*/
public abstract class CachingTemplateEngine implements TemplateEngine {
private final LocalMap> cache;
protected String extension;
protected CachingTemplateEngine(Vertx vertx, String ext) {
if (!WebEnvironment.development()) {
cache = vertx.sharedData().getLocalMap("__vertx.web.template.cache");
} else {
cache = null;
}
Objects.requireNonNull(ext);
this.extension = ext.charAt(0) == '.' ? ext : "." + ext;
}
public TemplateHolder getTemplate(String filename) {
if (cache != null) {
return cache.get(filename);
}
return null;
}
public TemplateHolder putTemplate(String filename, TemplateHolder templateHolder) {
if (cache != null) {
return cache.put(filename, templateHolder);
}
return null;
}
protected String adjustLocation(String location) {
if (extension != null) {
if (!location.endsWith(extension)) {
location += extension;
}
}
return location;
}
@Override
public void clearCache() {
cache.clear();
}
}