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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 2008, 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 com.sun.tools.example.debug.gui; | ||
| 27 | |||
| 28 | import java.io.*; | ||
| 29 | import java.util.*; | ||
| 30 | |||
| 31 | public class SearchPath { | ||
| 32 | |||
| 33 | private String pathString; | ||
| 34 | |||
| 35 | private String[] pathArray; | ||
| 36 | |||
| 37 | public SearchPath(String searchPath) { | ||
| 38 | //### Should check searchpath for well-formedness. | ||
| 39 | StringTokenizer st = new StringTokenizer(searchPath, File.pathSeparator); | ||
| 40 | List<String> dlist = new ArrayList<String>(); | ||
| 41 | while (st.hasMoreTokens()) { | ||
| 42 | dlist.add(st.nextToken()); | ||
| 43 | } | ||
| 44 | pathString = searchPath; | ||
| 45 | pathArray = dlist.toArray(new String[dlist.size()]); | ||
| 46 | } | ||
| 47 | |||
| 48 | public boolean isEmpty() { | ||
| 49 | return (pathArray.length == 0); | ||
| 50 | } | ||
| 51 | |||
| 52 | public String asString() { | ||
| 53 | return pathString; | ||
| 54 | } | ||
| 55 | |||
| 56 | public String[] asArray() { | ||
| 57 | return pathArray.clone(); | ||
| 58 | } | ||
| 59 | |||
| 60 | public File resolve(String relativeFileName) { | ||
| 61 | for (String element : pathArray) { | ||
| 62 | File path = new File(element, relativeFileName); | ||
| 63 | if (path.exists()) { | ||
| 64 | return path; | ||
| 65 | } | ||
| 66 | } | ||
| 67 | return null; | ||
| 68 | } | ||
| 69 | |||
| 70 | //### return List? | ||
| 71 | |||
| 72 | public String[] children(String relativeDirName, FilenameFilter filter) { | ||
| 73 | // If a file appears at the same relative path | ||
| 74 | // with respect to multiple entries on the classpath, | ||
| 75 | // the one corresponding to the earliest entry on the | ||
| 76 | // classpath is retained. This is the one that will be | ||
| 77 | // found if we later do a 'resolve'. | ||
| 78 | SortedSet<String> s = new TreeSet<String>(); // sorted, no duplicates | ||
| 79 | for (String element : pathArray) { | ||
| 80 | File path = new File(element, relativeDirName); | ||
| 81 | if (path.exists()) { | ||
| 82 | String[] childArray = path.list(filter); | ||
| 83 | if (childArray != null) { | ||
| 84 | for (int j = 0; j < childArray.length; j++) { | ||
| 85 | if (!s.contains(childArray[j])) { | ||
| 86 | s.add(childArray[j]); | ||
| 87 | } | ||
| 88 | } | ||
| 89 | } | ||
| 90 | } | ||
| 91 | } | ||
| 92 | return s.toArray(new String[s.size()]); | ||
| 93 | } | ||
| 94 | |||
| 95 | } | ||