vertx-web-js.template_engine.js Maven / Gradle / Ivy
/*
* Copyright 2014 Red Hat, Inc.
*
* Red Hat licenses this file to you 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.
*/
/** @module vertx-web-js/template_engine */
var utils = require('vertx-js/util/utils');
var Buffer = require('vertx-js/buffer');
var RoutingContext = require('vertx-web-js/routing_context');
var io = Packages.io;
var JsonObject = io.vertx.core.json.JsonObject;
var JTemplateEngine = io.vertx.ext.web.templ.TemplateEngine;
/**
A template engine uses a specific template and the data in a routing context to render a resource into a buffer.
Concrete implementations exist for several well-known template engines.
@class
*/
var TemplateEngine = function(j_val) {
var j_templateEngine = j_val;
var that = this;
/**
Render
@public
@param context {RoutingContext} the routing context
@param templateFileName {string} the template file name to use
@param handler {function} the handler that will be called with a result containing the buffer or a failure.
*/
this.render = function(context, templateFileName, handler) {
var __args = arguments;
if (__args.length === 3 && typeof __args[0] === 'object' && __args[0]._jdel && typeof __args[1] === 'string' && typeof __args[2] === 'function') {
j_templateEngine["render(io.vertx.ext.web.RoutingContext,java.lang.String,io.vertx.core.Handler)"](context._jdel, templateFileName, function(ar) {
if (ar.succeeded()) {
handler(utils.convReturnVertxGen(ar.result(), Buffer), null);
} else {
handler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
// A reference to the underlying Java delegate
// NOTE! This is an internal API and must not be used in user code.
// If you rely on this property your code is likely to break if we change it / remove it without warning.
this._jdel = j_templateEngine;
};
// We export the Constructor function
module.exports = TemplateEngine;