/* * JBoss, Home of Professional Open Source Copyright 2009, Red Hat Middleware * LLC, and individual contributors 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. */ package org.jboss.ws.core.utils; import java.util.regex.Matcher; import java.util.regex.Pattern; /** * Utility methods for handling paths. *
* * @author Daniel Bevenius */ public final class PathUtil { private static final Pattern dotSlash = Pattern.compile("\\./"); private final static Pattern dotdotSlash = Pattern.compile("(/\\w+/)?(\\.\\.)(/\\w+)"); private PathUtil() { } public static String handleRelativePath(final String path) { return removeDot(replaceParent(path)); } public static String replaceParent(final String path) { if (path == null) return path; final Matcher m = dotdotSlash.matcher(path);; if (!m.find()) return path; // Reset because of the find call above. m.reset(); final StringBuilder result = new StringBuilder(); while (m.find()) result.append(m.replaceFirst(m.group(3))); return result.toString(); } public static String removeDot(final String path) { Matcher m = dotSlash.matcher(path);; return m.replaceAll(""); } }