/** * * @(#) Example.java * created date : 2008. 01. 31 * * (c) Copyright by Hyundai HDS Inc., * All rights reserved. http://www.hyundaihds.co.kr */ package com.lucky.builder; /* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF 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. */ import org.apache.velocity.app.Velocity; import org.apache.velocity.VelocityContext; import org.apache.velocity.Template; import org.apache.velocity.exception.ParseErrorException; import org.apache.velocity.exception.ResourceNotFoundException; import java.io.*; import java.util.ArrayList; /** * This class is a simple demonstration of how the Velocity Template Engine * can be used in a standalone application. * * @author Jason van Zyl * @author Geir Magnusson Jr. * @version $Id: Example.java 463298 2006-10-12 16:10:32Z henning $ */ public class Example { public Example(String templateFile) { try { /* * setup */ File f = new File("."); System.out.println(f.getAbsolutePath()); Velocity.init("src\\com\\lucky\\properties\\velocity.properties"); /* * Make a context object and populate with the data. This * is where the Velocity engine gets the data to resolve the * references (ex. $list) in the template */ VelocityContext context = new VelocityContext(); context.put("list", getNames()); /* * get the Template object. This is the parsed version of your * template input file. Note that getTemplate() can throw * ResourceNotFoundException : if it doesn't find the template * ParseErrorException : if there is something wrong with the VTL * Exception : if something else goes wrong (this is generally * indicative of as serious problem...) */ Template template = null; try { template = Velocity.getTemplate(templateFile); } catch( ResourceNotFoundException rnfe ) { System.out.println("Example : error : cannot find template " + templateFile ); } catch( ParseErrorException pee ) { System.out.println("Example : Syntax error in template " + templateFile + ":" + pee ); } /* * Now have the template engine process your template using the * data placed into the context. Think of it as a 'merge' * of the template and the data to produce the output stream. */ BufferedWriter writer = writer = new BufferedWriter( new OutputStreamWriter(System.out)); if ( template != null) template.merge(context, writer); /* * flush and cleanup */ writer.flush(); writer.close(); } catch( Exception e ) { System.out.println(e); } } public ArrayList getNames() { ArrayList list = new ArrayList(); list.add("ArrayList element 1"); list.add("ArrayList element 2"); list.add("ArrayList element 3"); list.add("ArrayList element 4"); return list; } public static void main(String[] args) { Example t = new Example("src\\com\\lucky\\template\\example.vm"); } }