com.appslandia.plum.utils.JspTemplateUtils Maven / Gradle / Ivy

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// The MIT License (MIT)
// Copyright © 2015 AppsLandia. All rights reserved.

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package com.appslandia.plum.utils;

import java.io.IOException;
import java.nio.charset.StandardCharsets;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.appslandia.plum.base.ContentResponseWrapper;

/**
 *
 * @author Loc Ha
 *
 */
public class JspTemplateUtils {

	public static byte[] executeByteArray(HttpServletRequest request, HttpServletResponse response, String templatePath, Object model) throws ServletException, IOException {
		final Object bakModel = request.getAttribute(ServletUtils.REQUEST_ATTRIBUTE_MODEL);
		request.setAttribute(ServletUtils.REQUEST_ATTRIBUTE_MODEL, model);

		try {
			ContentResponseWrapper wrapper = new ContentResponseWrapper(response, false, false);
			ServletUtils.include(request, wrapper, templatePath);

			wrapper.finishWrapper();
			return wrapper.getContent().toByteArray();
		} finally {
			request.setAttribute(ServletUtils.REQUEST_ATTRIBUTE_MODEL, bakModel);
		}
	}

	public static String executeString(HttpServletRequest request, HttpServletResponse response, String templatePath, Object model) throws ServletException, IOException {
		return new String(executeByteArray(request, response, templatePath, model), StandardCharsets.UTF_8);
	}
}