Showing the changes to java/pkg/sun/security/util/PathList.java (1 of 18352 files). Show all
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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 | +} | |