Package org.mojavemvc.views

Source Code of org.mojavemvc.views.FTL

/*
* Copyright (C) 2011-2013 Mojavemvc.org
*
* 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.mojavemvc.views;

import java.io.IOException;

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

import org.mojavemvc.initialization.AppProperties;

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

/**
* @author Luis Antunes
*/
public class FTL extends DataModelView<FTL> {

    public static final String CONFIG_PROPERTY = "mojavemvc-internal-ftl-config";
   
    private final String templateName;
   
    public FTL(String templateName) {
       
        if (templateName == null || templateName.trim().length() == 0) {
            throw new IllegalArgumentException("template name cannot be empty");
        }
        this.templateName = templateName;
    }
   
    @Override
    public void render(HttpServletRequest request, HttpServletResponse response,
            AppProperties properties)
            throws ServletException, IOException {

        Configuration config = (Configuration)properties.getProperty(CONFIG_PROPERTY);
       
        Template template = config.getTemplate(templateName);
       
        try {
           
            template.process(attributes, response.getWriter());
           
        } catch (TemplateException e) {
            throw new RuntimeException("error processing template : " + templateName, e);
        }
    }

}
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