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/*
 *  Copyright 2008-2010 biaoping.yin
 *
 *  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.frameworkset.ui.freemarker;

import java.io.IOException;
import java.io.StringWriter;

import freemarker.template.Template;
import freemarker.template.TemplateException;

/**
 * Utility class for working with FreeMarker.
 * Provides convenience methods to process a FreeMarker template with a model.
 *
 * @author Juergen Hoeller
 * @since 14.03.2004
 */
public abstract class FreeMarkerTemplateUtils {

	/**
	 * Process the specified FreeMarker template with the given model and write
	 * the result to the given Writer.
	 * When using this method to prepare a text for a mail to be sent with Bboss's
	 * mail support, consider wrapping IO/TemplateException in MailPreparationException.
	 * @param model the model object, typically a Map that contains model names
	 * as keys and model objects as values
	 * @return the result as String
	 * @throws IOException if the template wasn't found or couldn't be read
	 * @throws freemarker.template.TemplateException if rendering failed
	 * @see 
	 */
	public static String processTemplateIntoString(Template template, Object model)
			throws IOException, TemplateException {
		StringWriter result = new StringWriter();
		template.process(model, result);
		return result.toString();
	}

}