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| 1 | /* | ||
| 2 | * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package sun.security.util; | ||
| 27 | |||
| 28 | import java.io.File; | ||
| 29 | import java.io.IOException; | ||
| 30 | import java.lang.String; | ||
| 31 | import java.util.StringTokenizer; | ||
| 32 | import java.net.URL; | ||
| 33 | import java.net.URLClassLoader; | ||
| 34 | import java.net.MalformedURLException; | ||
| 35 | |||
| 36 | /** | ||
| 37 | * A utility class for handle path list | ||
| 38 | * | ||
| 39 | */ | ||
| 40 | public class PathList { | ||
| 41 | /** | ||
| 42 | * Utility method for appending path from pathFrom to pathTo. | ||
| 43 | * | ||
| 44 | * @param pathTo the target path | ||
| 45 | * @param pathSource the path to be appended to pathTo | ||
| 46 | * @return the resulting path | ||
| 47 | */ | ||
| 48 | public static String appendPath(String pathTo, String pathFrom) { | ||
| 49 | if (pathTo == null || pathTo.length() == 0) { | ||
| 50 | return pathFrom; | ||
| 51 | } else if (pathFrom == null || pathFrom.length() == 0) { | ||
| 52 | return pathTo; | ||
| 53 | } else { | ||
| 54 | return pathTo + File.pathSeparator + pathFrom; | ||
| 55 | } | ||
| 56 | } | ||
| 57 | |||
| 58 | /** | ||
| 59 | * Utility method for converting a search path string to an array | ||
| 60 | * of directory and JAR file URLs. | ||
| 61 | * | ||
| 62 | * @param path the search path string | ||
| 63 | * @return the resulting array of directory and JAR file URLs | ||
| 64 | */ | ||
| 65 | public static URL[] pathToURLs(String path) { | ||
| 66 | StringTokenizer st = new StringTokenizer(path, File.pathSeparator); | ||
| 67 | URL[] urls = new URL[st.countTokens()]; | ||
| 68 | int count = 0; | ||
| 69 | while (st.hasMoreTokens()) { | ||
| 70 | URL url = fileToURL(new File(st.nextToken())); | ||
| 71 | if (url != null) { | ||
| 72 | urls[count++] = url; | ||
| 73 | } | ||
| 74 | } | ||
| 75 | if (urls.length != count) { | ||
| 76 | URL[] tmp = new URL[count]; | ||
| 77 | System.arraycopy(urls, 0, tmp, 0, count); | ||
| 78 | urls = tmp; | ||
| 79 | } | ||
| 80 | return urls; | ||
| 81 | } | ||
| 82 | |||
| 83 | /** | ||
| 84 | * Returns the directory or JAR file URL corresponding to the specified | ||
| 85 | * local file name. | ||
| 86 | * | ||
| 87 | * @param file the File object | ||
| 88 | * @return the resulting directory or JAR file URL, or null if unknown | ||
| 89 | */ | ||
| 90 | private static URL fileToURL(File file) { | ||
| 91 | String name; | ||
| 92 | try { | ||
| 93 | name = file.getCanonicalPath(); | ||
| 94 | } catch (IOException e) { | ||
| 95 | name = file.getAbsolutePath(); | ||
| 96 | } | ||
| 97 | name = name.replace(File.separatorChar, '/'); | ||
| 98 | if (!name.startsWith("/")) { | ||
| 99 | name = "/" + name; | ||
| 100 | } | ||
| 101 | // If the file does not exist, then assume that it's a directory | ||
| 102 | if (!file.isFile()) { | ||
| 103 | name = name + "/"; | ||
| 104 | } | ||
| 105 | try { | ||
| 106 | return new URL("file", "", name); | ||
| 107 | } catch (MalformedURLException e) { | ||
| 108 | throw new IllegalArgumentException("file"); | ||
| 109 | } | ||
| 110 | } | ||
| 111 | } | ||