| /* |
| * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.security.tools; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.lang.String; |
| import java.util.StringTokenizer; |
| import java.net.URL; |
| import java.net.URLClassLoader; |
| import java.net.MalformedURLException; |
| |
| /** |
| * A utility class for handle path list |
| * |
| */ |
| public class PathList { |
| /** |
| * Utility method for appending path from pathFrom to pathTo. |
| * |
| * @param pathTo the target path |
| * @param pathFrom the path to be appended to pathTo |
| * @return the resulting path |
| */ |
| public static String appendPath(String pathTo, String pathFrom) { |
| if (pathTo == null || pathTo.length() == 0) { |
| return pathFrom; |
| } else if (pathFrom == null || pathFrom.length() == 0) { |
| return pathTo; |
| } else { |
| return pathTo + File.pathSeparator + pathFrom; |
| } |
| } |
| |
| /** |
| * Utility method for converting a search path string to an array |
| * of directory and JAR file URLs. |
| * |
| * @param path the search path string |
| * @return the resulting array of directory and JAR file URLs |
| */ |
| public static URL[] pathToURLs(String path) { |
| StringTokenizer st = new StringTokenizer(path, File.pathSeparator); |
| URL[] urls = new URL[st.countTokens()]; |
| int count = 0; |
| while (st.hasMoreTokens()) { |
| URL url = fileToURL(new File(st.nextToken())); |
| if (url != null) { |
| urls[count++] = url; |
| } |
| } |
| if (urls.length != count) { |
| URL[] tmp = new URL[count]; |
| System.arraycopy(urls, 0, tmp, 0, count); |
| urls = tmp; |
| } |
| return urls; |
| } |
| |
| /** |
| * Returns the directory or JAR file URL corresponding to the specified |
| * local file name. |
| * |
| * @param file the File object |
| * @return the resulting directory or JAR file URL, or null if unknown |
| */ |
| private static URL fileToURL(File file) { |
| String name; |
| try { |
| name = file.getCanonicalPath(); |
| } catch (IOException e) { |
| name = file.getAbsolutePath(); |
| } |
| name = name.replace(File.separatorChar, '/'); |
| if (!name.startsWith("/")) { |
| name = "/" + name; |
| } |
| // If the file does not exist, then assume that it's a directory |
| if (!file.isFile()) { |
| name = name + "/"; |
| } |
| try { |
| return new URL("file", "", name); |
| } catch (MalformedURLException e) { |
| throw new IllegalArgumentException("file"); |
| } |
| } |
| } |