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jforum example source code file (VariableExpander.java)
The jforum VariableExpander.java source code/* * Copyright (c) JForum Team * All rights reserved. * Redistribution and use in source and binary forms, * with or without modification, are permitted provided * that the following conditions are met: * 1) Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * 2) Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * 3) Neither the name of "Rafael Steil" nor * the names of its contributors may be used to endorse * or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER * IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE * * Created on May 31, 2004 by pieter * The JForum Project * http://www.jforum.net */ package net.jforum.util.preferences; import java.util.HashMap; import java.util.Map; /** * @author Pieter * @author Rafael Steil * @version $Id: VariableExpander.java,v 1.6 2006/08/20 22:47:37 rafaelsteil Exp $ */ public class VariableExpander { private VariableStore variables; private String pre; private String post; private Map cache; public VariableExpander(VariableStore variables, String pre, String post) { this.variables = variables; this.pre = pre; this.post = post; cache = new HashMap(); } public void clearCache() { cache.clear(); } public String expandVariables(String source) { String result = (String)this.cache.get(source); if (source == null || result != null) { return result; } int fIndex = source.indexOf(this.pre); if (fIndex == -1) { return source; } StringBuffer sb = new StringBuffer(source); while (fIndex > -1) { int lIndex = sb.indexOf(this.post); int start = fIndex + this.pre.length(); if (fIndex == 0) { String varName = sb.substring(start, start + lIndex - this.pre.length()); sb.replace(fIndex, fIndex + lIndex + 1, this.variables.getVariableValue(varName)); } else { String varName = sb.substring(start, lIndex); sb.replace(fIndex, lIndex + 1, this.variables.getVariableValue(varName)); } fIndex = sb.indexOf(this.pre); } result = sb.toString(); this.cache.put(source, result); return result; } } Other jforum examples (source code examples)Here is a short list of links related to this jforum VariableExpander.java source code file: |
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