Java tutorial
//package com.java2s; /* * JBoss, Home of Professional Open Source * Copyright 2005, JBoss Inc., and individual contributors as indicated * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ import java.util.ArrayList; import java.util.List; import java.util.StringTokenizer; public class Main { /** * parses comma or space separated list. A null return value means a wildcard. * @return List of tokens or null if the commaSeparatedListText is null, '*', or empty */ public static List<String> parseCommaSeparatedList(String commaSeparatedListText) { List<String> entries = null; if (commaSeparatedListText != null) { if (!"*".equals(commaSeparatedListText)) { StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListText, ", "); while (tokenizer.hasMoreTokens()) { if (entries == null) { entries = new ArrayList<String>(); } entries.add(tokenizer.nextToken()); } } } return entries; } }