Thu, 31 Aug 2017 15:17:03 +0800
merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | package com.sun.tools.doclets.internal.toolkit.util; |
aoqi@0 | 27 | |
aoqi@0 | 28 | /** |
aoqi@0 | 29 | * Abstraction for simple relative URIs, consisting of a path, |
aoqi@0 | 30 | * an optional query, and an optional fragment. DocLink objects can |
aoqi@0 | 31 | * be created by the constructors below or from a DocPath using the |
aoqi@0 | 32 | * convenience methods, {@link DocPath#fragment fragment} and |
aoqi@0 | 33 | * {@link DocPath#query query}. |
aoqi@0 | 34 | * |
aoqi@0 | 35 | * <p><b>This is NOT part of any supported API. |
aoqi@0 | 36 | * If you write code that depends on this, you do so at your own risk. |
aoqi@0 | 37 | * This code and its internal interfaces are subject to change or |
aoqi@0 | 38 | * deletion without notice.</b> |
aoqi@0 | 39 | * |
aoqi@0 | 40 | */ |
aoqi@0 | 41 | public class DocLink { |
aoqi@0 | 42 | final String path; |
aoqi@0 | 43 | final String query; |
aoqi@0 | 44 | final String fragment; |
aoqi@0 | 45 | |
aoqi@0 | 46 | /** Create a DocLink representing the URI {@code #fragment}. */ |
aoqi@0 | 47 | public static DocLink fragment(String fragment) { |
aoqi@0 | 48 | return new DocLink((String) null, (String) null, fragment); |
aoqi@0 | 49 | } |
aoqi@0 | 50 | |
aoqi@0 | 51 | /** Create a DocLink representing the URI {@code path}. */ |
aoqi@0 | 52 | public DocLink(DocPath path) { |
aoqi@0 | 53 | this(path.getPath(), null, null); |
aoqi@0 | 54 | } |
aoqi@0 | 55 | |
aoqi@0 | 56 | /** |
aoqi@0 | 57 | * Create a DocLink representing the URI {@code path?query#fragment}. |
aoqi@0 | 58 | * query and fragment may be null. |
aoqi@0 | 59 | */ |
aoqi@0 | 60 | public DocLink(DocPath path, String query, String fragment) { |
aoqi@0 | 61 | this(path.getPath(), query, fragment); |
aoqi@0 | 62 | } |
aoqi@0 | 63 | |
aoqi@0 | 64 | /** |
aoqi@0 | 65 | * Create a DocLink representing the URI {@code path?query#fragment}. |
aoqi@0 | 66 | * Any of the component parts may be null. |
aoqi@0 | 67 | */ |
aoqi@0 | 68 | public DocLink(String path, String query, String fragment) { |
aoqi@0 | 69 | this.path = path; |
aoqi@0 | 70 | this.query = query; |
aoqi@0 | 71 | this.fragment = fragment; |
aoqi@0 | 72 | } |
aoqi@0 | 73 | |
aoqi@0 | 74 | /** |
aoqi@0 | 75 | * Return the link in the form "path?query#fragment", omitting any empty |
aoqi@0 | 76 | * components. |
aoqi@0 | 77 | */ |
aoqi@0 | 78 | @Override |
aoqi@0 | 79 | public String toString() { |
aoqi@0 | 80 | // common fast path |
aoqi@0 | 81 | if (path != null && isEmpty(query) && isEmpty(fragment)) |
aoqi@0 | 82 | return path; |
aoqi@0 | 83 | |
aoqi@0 | 84 | StringBuilder sb = new StringBuilder(); |
aoqi@0 | 85 | if (path != null) |
aoqi@0 | 86 | sb.append(path); |
aoqi@0 | 87 | if (!isEmpty(query)) |
aoqi@0 | 88 | sb.append("?").append(query); |
aoqi@0 | 89 | if (!isEmpty(fragment)) |
aoqi@0 | 90 | sb.append("#").append(fragment); |
aoqi@0 | 91 | return sb.toString(); |
aoqi@0 | 92 | } |
aoqi@0 | 93 | |
aoqi@0 | 94 | private static boolean isEmpty(String s) { |
aoqi@0 | 95 | return (s == null) || s.isEmpty(); |
aoqi@0 | 96 | } |
aoqi@0 | 97 | } |