| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| IndexedObjectReference | 44 | 18 | 0% | 11 | 2 |
| 1 | /* | |
| 2 | * See the NOTICE file distributed with this work for additional | |
| 3 | * information regarding copyright ownership. | |
| 4 | * | |
| 5 | * This is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms of the GNU Lesser General Public License as | |
| 7 | * published by the Free Software Foundation; either version 2.1 of | |
| 8 | * the License, or (at your option) any later version. | |
| 9 | * | |
| 10 | * This software is distributed in the hope that it will be useful, | |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | * Lesser General Public License for more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU Lesser General Public | |
| 16 | * License along with this software; if not, write to the Free | |
| 17 | * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
| 18 | * 02110-1301 USA, or see the FSF site: http://www.fsf.org. | |
| 19 | */ | |
| 20 | package org.xwiki.annotation.reference; | |
| 21 | ||
| 22 | import org.xwiki.model.reference.DocumentReference; | |
| 23 | import org.xwiki.model.reference.EntityReference; | |
| 24 | import org.xwiki.model.reference.ObjectReference; | |
| 25 | ||
| 26 | /** | |
| 27 | * Object reference implementation for object names generated in {@code className[objectNumber]} format. It provides | |
| 28 | * helper functions to extract the class name as specified by the caller, and object number. <br> | |
| 29 | * Accepted formats for the object name are: | |
| 30 | * <dl> | |
| 31 | * <dt>className[objectNumber] | |
| 32 | * <dd>interpreted as the object of class className with number objectNumber. refers the object returned by | |
| 33 | * XWikiDocument.getObject(String className, int objectNumber). In this case, className is obtained by calling | |
| 34 | * {@link #getClassName()} and object index by calling {@link #getObjectNumber()}. | |
| 35 | * <dt>className | |
| 36 | * <dd>interpreted as the first object of class className. refers the object returned by XWikiDocument.getObject(String | |
| 37 | * className). In this case, {@link #getObjectNumber()} will return {@code null} and {@code className} is obtained by | |
| 38 | * calling {@link #getClassName()}. | |
| 39 | * </dl> | |
| 40 | * | |
| 41 | * @version $Id: d32aa710eba15aa28a84fd05907c2757cb40d03b $ | |
| 42 | * @since 2.3M1 | |
| 43 | */ | |
| 44 | public class IndexedObjectReference extends ObjectReference | |
| 45 | { | |
| 46 | /** | |
| 47 | * The class name of this object, as set by the caller. | |
| 48 | */ | |
| 49 | protected String className; | |
| 50 | ||
| 51 | /** | |
| 52 | * The number of this object, as set by the caller. | |
| 53 | */ | |
| 54 | protected Integer objectNumber; | |
| 55 | ||
| 56 | /** | |
| 57 | * Constructor which would raise exceptions if the source entity reference does not have the appropriate type or | |
| 58 | * parent, etc. | |
| 59 | * | |
| 60 | * @param reference the raw reference to build this object reference from | |
| 61 | */ | |
| 62 | 7 | public IndexedObjectReference(EntityReference reference) |
| 63 | { | |
| 64 | 7 | super(reference); |
| 65 | } | |
| 66 | ||
| 67 | /** | |
| 68 | * Builds an indexed object reference for the object of class {@code className} with index {@code objectNumber} in | |
| 69 | * the document referenced by {@code parent}. | |
| 70 | * | |
| 71 | * @param className the name of the class of the object | |
| 72 | * @param objectNumber the number of the object in the document, or {@code null} if the default object should be | |
| 73 | * referenced | |
| 74 | * @param parent reference to the parent document where the object is | |
| 75 | */ | |
| 76 | 1 | public IndexedObjectReference(String className, Integer objectNumber, EntityReference parent) |
| 77 | { | |
| 78 | // crap, i'm building the string here to only parse it back in setName. But it shouldn't be that much processing | |
| 79 | 1 | super(objectNumber != null ? className + "[" + objectNumber + "]" : className, new DocumentReference(parent)); |
| 80 | } | |
| 81 | ||
| 82 | /** | |
| 83 | * @return the name of the class of this object, as it was set by caller. I.e. no resolving is done from the value | |
| 84 | * set in the name of the object. | |
| 85 | */ | |
| 86 | 8 | public String getClassName() |
| 87 | { | |
| 88 | 8 | return className != null ? className : getName(); |
| 89 | } | |
| 90 | ||
| 91 | /** | |
| 92 | * @return the number of this object among the objects of the same class in the document, as set by the caller in | |
| 93 | * [objectNumber] format after the class name (i.e. no resolving is done, existence of this object is not | |
| 94 | * guaranteed). If no number can be parsed (i.e. [number] cannot be parsed) this function returns {@code | |
| 95 | * null} and object should be interpreted as the first object of this class in the document. | |
| 96 | */ | |
| 97 | 8 | public Integer getObjectNumber() |
| 98 | { | |
| 99 | 8 | return objectNumber; |
| 100 | } | |
| 101 | ||
| 102 | /** | |
| 103 | * {@inheritDoc} | |
| 104 | * <p> | |
| 105 | * Overridden to always compute the class name and the object number. | |
| 106 | * </p> | |
| 107 | * | |
| 108 | * @see org.xwiki.model.reference.EntityReference#setName(java.lang.String) | |
| 109 | */ | |
| 110 | 8 | @Override |
| 111 | protected void setName(String name) | |
| 112 | { | |
| 113 | 8 | super.setName(name); |
| 114 | ||
| 115 | // set fields to default values | |
| 116 | 8 | className = name; |
| 117 | 8 | objectNumber = null; |
| 118 | ||
| 119 | // find last encounter of ] (which should be the last character), then last encounter of [, parse in between as | |
| 120 | // number. If anything in this fails, then everything is className | |
| 121 | 8 | int closePosition = name.lastIndexOf(']'); |
| 122 | // if there is no ] or is not on the last position | |
| 123 | 8 | if (closePosition < 0 || closePosition != name.length() - 1) { |
| 124 | 2 | return; |
| 125 | } | |
| 126 | // if there is no [ | |
| 127 | 6 | int openPosition = name.lastIndexOf('['); |
| 128 | 6 | if (openPosition < 0) { |
| 129 | 1 | return; |
| 130 | } | |
| 131 | // parse the string between the two as object number | |
| 132 | 5 | String numberString = name.substring(openPosition + 1, closePosition); |
| 133 | 5 | try { |
| 134 | 5 | objectNumber = Integer.parseInt(numberString); |
| 135 | 4 | className = name.substring(0, openPosition); |
| 136 | } catch (NumberFormatException e) { | |
| 137 | // number could not be parsed, which means className stays name, and object stays null | |
| 138 | 1 | return; |
| 139 | } | |
| 140 | } | |
| 141 | } |