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| 1 | +/* |
| 2 | +Copyright 2007-2009 Selenium committers |
| 3 | +
|
| 4 | +Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | +you may not use this file except in compliance with the License. |
| 6 | +You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | +Unless required by applicable law or agreed to in writing, software |
| 11 | +distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | +See the License for the specific language governing permissions and |
| 14 | +limitations under the License. |
| 15 | + */ |
| 16 | + |
| 17 | +package org.openqa.selenium.support.pagefactory; |
| 18 | + |
| 19 | +import java.util.HashSet; |
| 20 | +import java.util.Set; |
| 21 | + |
| 22 | +import org.openqa.selenium.By; |
| 23 | +import org.openqa.selenium.support.ByIdOrName; |
| 24 | +import org.openqa.selenium.support.FindAll; |
| 25 | +import org.openqa.selenium.support.FindBy; |
| 26 | +import org.openqa.selenium.support.FindBys; |
| 27 | +import org.openqa.selenium.support.How; |
| 28 | + |
| 29 | +/** |
| 30 | + * Abstract class to work with fields in Page Objects. |
| 31 | + * Provides methods to process {@link org.openqa.selenium.support.FindBy}, |
| 32 | + * {@link org.openqa.selenium.support.FindBys} and |
| 33 | + * {@link org.openqa.selenium.support.FindAll} annotations. |
| 34 | + */ |
| 35 | +public abstract class AbstractAnnotations { |
| 36 | + |
| 37 | + /** |
| 38 | + * Defines how to transform given object (field, class, etc) |
| 39 | + * into {@link org.openqa.selenium.By} class used by webdriver to locate elements. |
| 40 | + */ |
| 41 | + public abstract By buildBy(); |
| 42 | + |
| 43 | + /** |
| 44 | + * Defines whether or not given element |
| 45 | + * should be returned from cache on further calls. |
| 46 | + */ |
| 47 | + public abstract boolean isLookupCached(); |
| 48 | + |
| 49 | + protected By buildByFromFindBys(FindBys findBys) { |
| 50 | + assertValidFindBys(findBys); |
| 51 | + |
| 52 | + FindBy[] findByArray = findBys.value(); |
| 53 | + By[] byArray = new By[findByArray.length]; |
| 54 | + for (int i = 0; i < findByArray.length; i++) { |
| 55 | + byArray[i] = buildByFromFindBy(findByArray[i]); |
| 56 | + } |
| 57 | + |
| 58 | + return new ByChained(byArray); |
| 59 | + } |
| 60 | + |
| 61 | + protected By buildBysFromFindByOneOf(FindAll findBys) { |
| 62 | + assertValidFindAll(findBys); |
| 63 | + |
| 64 | + FindBy[] findByArray = findBys.value(); |
| 65 | + By[] byArray = new By[findByArray.length]; |
| 66 | + for (int i = 0; i < findByArray.length; i++) { |
| 67 | + byArray[i] = buildByFromFindBy(findByArray[i]); |
| 68 | + } |
| 69 | + |
| 70 | + return new ByAll(byArray); |
| 71 | + } |
| 72 | + |
| 73 | + protected By buildByFromFindBy(FindBy findBy) { |
| 74 | + assertValidFindBy(findBy); |
| 75 | + |
| 76 | + By ans = buildByFromShortFindBy(findBy); |
| 77 | + if (ans == null) { |
| 78 | + ans = buildByFromLongFindBy(findBy); |
| 79 | + } |
| 80 | + |
| 81 | + return ans; |
| 82 | + } |
| 83 | + |
| 84 | + protected By buildByFromLongFindBy(FindBy findBy) { |
| 85 | + How how = findBy.how(); |
| 86 | + String using = findBy.using(); |
| 87 | + |
| 88 | + switch (how) { |
| 89 | + case CLASS_NAME: |
| 90 | + return By.className(using); |
| 91 | + |
| 92 | + case CSS: |
| 93 | + return By.cssSelector(using); |
| 94 | + |
| 95 | + case ID: |
| 96 | + return By.id(using); |
| 97 | + |
| 98 | + case ID_OR_NAME: |
| 99 | + return new ByIdOrName(using); |
| 100 | + |
| 101 | + case LINK_TEXT: |
| 102 | + return By.linkText(using); |
| 103 | + |
| 104 | + case NAME: |
| 105 | + return By.name(using); |
| 106 | + |
| 107 | + case PARTIAL_LINK_TEXT: |
| 108 | + return By.partialLinkText(using); |
| 109 | + |
| 110 | + case TAG_NAME: |
| 111 | + return By.tagName(using); |
| 112 | + |
| 113 | + case XPATH: |
| 114 | + return By.xpath(using); |
| 115 | + |
| 116 | + default: |
| 117 | + // Note that this shouldn't happen (eg, the above matches all |
| 118 | + // possible values for the How enum) |
| 119 | + throw new IllegalArgumentException("Cannot determine how to locate element "); |
| 120 | + } |
| 121 | + } |
| 122 | + |
| 123 | + protected By buildByFromShortFindBy(FindBy findBy) { |
| 124 | + if (!"".equals(findBy.className())) |
| 125 | + return By.className(findBy.className()); |
| 126 | + |
| 127 | + if (!"".equals(findBy.css())) |
| 128 | + return By.cssSelector(findBy.css()); |
| 129 | + |
| 130 | + if (!"".equals(findBy.id())) |
| 131 | + return By.id(findBy.id()); |
| 132 | + |
| 133 | + if (!"".equals(findBy.linkText())) |
| 134 | + return By.linkText(findBy.linkText()); |
| 135 | + |
| 136 | + if (!"".equals(findBy.name())) |
| 137 | + return By.name(findBy.name()); |
| 138 | + |
| 139 | + if (!"".equals(findBy.partialLinkText())) |
| 140 | + return By.partialLinkText(findBy.partialLinkText()); |
| 141 | + |
| 142 | + if (!"".equals(findBy.tagName())) |
| 143 | + return By.tagName(findBy.tagName()); |
| 144 | + |
| 145 | + if (!"".equals(findBy.xpath())) |
| 146 | + return By.xpath(findBy.xpath()); |
| 147 | + |
| 148 | + // Fall through |
| 149 | + return null; |
| 150 | + } |
| 151 | + |
| 152 | + private void assertValidFindBys(FindBys findBys) { |
| 153 | + for (FindBy findBy : findBys.value()) { |
| 154 | + assertValidFindBy(findBy); |
| 155 | + } |
| 156 | + } |
| 157 | + |
| 158 | + private void assertValidFindAll(FindAll findBys) { |
| 159 | + for (FindBy findBy : findBys.value()) { |
| 160 | + assertValidFindBy(findBy); |
| 161 | + } |
| 162 | + } |
| 163 | + |
| 164 | + private void assertValidFindBy(FindBy findBy) { |
| 165 | + if (findBy.how() != null) { |
| 166 | + if (findBy.using() == null) { |
| 167 | + throw new IllegalArgumentException( |
| 168 | + "If you set the 'how' property, you must also set 'using'"); |
| 169 | + } |
| 170 | + } |
| 171 | + |
| 172 | + Set<String> finders = new HashSet<String>(); |
| 173 | + if (!"".equals(findBy.using())) finders.add("how: " + findBy.using()); |
| 174 | + if (!"".equals(findBy.className())) finders.add("class name:" + findBy.className()); |
| 175 | + if (!"".equals(findBy.css())) finders.add("css:" + findBy.css()); |
| 176 | + if (!"".equals(findBy.id())) finders.add("id: " + findBy.id()); |
| 177 | + if (!"".equals(findBy.linkText())) finders.add("link text: " + findBy.linkText()); |
| 178 | + if (!"".equals(findBy.name())) finders.add("name: " + findBy.name()); |
| 179 | + if (!"".equals(findBy.partialLinkText())) |
| 180 | + finders.add("partial link text: " + findBy.partialLinkText()); |
| 181 | + if (!"".equals(findBy.tagName())) finders.add("tag name: " + findBy.tagName()); |
| 182 | + if (!"".equals(findBy.xpath())) finders.add("xpath: " + findBy.xpath()); |
| 183 | + |
| 184 | + // A zero count is okay: it means to look by name or id. |
| 185 | + if (finders.size() > 1) { |
| 186 | + throw new IllegalArgumentException( |
| 187 | + String.format("You must specify at most one location strategy. Number found: %d (%s)", |
| 188 | + finders.size(), finders.toString())); |
| 189 | + } |
| 190 | + } |
| 191 | +} |
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