lib.js 10 KB

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  1. // Licensed to Cloudera, Inc. under one
  2. // or more contributor license agreements. See the NOTICE file
  3. // distributed with this work for additional information
  4. // regarding copyright ownership. Cloudera, Inc. licenses this file
  5. // to you under the Apache License, Version 2.0 (the
  6. // "License"); you may not use this file except in compliance
  7. // with the License. You may obtain a copy of the License at
  8. //
  9. // http://www.apache.org/licenses/LICENSE-2.0
  10. //
  11. // Unless required by applicable law or agreed to in writing, software
  12. // distributed under the License is distributed on an "AS IS" BASIS,
  13. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14. // See the License for the specific language governing permissions and
  15. // limitations under the License.
  16. // Start Models
  17. var Collection = function(name) {
  18. var self = this;
  19. self.name = ko.observable(name).extend({'errors': null});
  20. self.fields = ko.observableArray();
  21. // Metadata
  22. self.uniqueKeyField = ko.observable().extend({'errors': null});
  23. self.df = ko.observable().extend({'errors': null});
  24. self.hasHueCollection = ko.observable(true).extend({'errors': null});
  25. self.hasSolrCollection = ko.observable(true).extend({'errors': null});
  26. self.isCoreOnly = ko.observable(false);
  27. self.removeField = function(field) {
  28. if (field.name() != self.uniqueKeyField()) {
  29. self.fields.remove(field);
  30. }
  31. };
  32. self.addField = function(name, type) {
  33. self.fields.push(new Field(self, name, type));
  34. };
  35. self.newField = function() {
  36. self.addField('', 'text_general');
  37. };
  38. self.setData = function(data_json) {
  39. self.data(data_json);
  40. };
  41. };
  42. var Field = function(collection, name, type, required, indexed, stored) {
  43. var self = this;
  44. indexed = (indexed == undefined) ? true : !!indexed;
  45. required = (required == undefined) ? true : !!required;
  46. stored = (stored == undefined) ? true : !!stored;
  47. self.name = ko.observable(name).extend({'errors': null});
  48. self.type = ko.observable(type).extend({'errors': null});
  49. self.required = ko.observable(required).extend({'errors': null});
  50. self.indexed = ko.observable(indexed).extend({'errors': null});
  51. self.stored = ko.observable(stored).extend({'errors': null});
  52. // Metadata
  53. self.saved = ko.observable(false);
  54. self.uniqueKeyField = ko.computed({
  55. 'read': function() {
  56. return collection.uniqueKeyField() == self.name();
  57. },
  58. 'write': function(value) {
  59. collection.uniqueKeyField(self.name());
  60. self.indexed(true);
  61. }
  62. });
  63. self.df = ko.computed({
  64. 'read': function() {
  65. return collection.df() == self.name();
  66. },
  67. 'write': function(value) {
  68. collection.df(self.name());
  69. self.indexed(true);
  70. }
  71. });
  72. self.editable = ko.computed(function() {
  73. return !self.uniqueKeyField() && self.name() != '_version_';
  74. });
  75. self.remove = function() {
  76. collection.removeField(self);
  77. };
  78. };
  79. var HiveDatabase = function(name) {
  80. var self = this;
  81. self.name = ko.observable(name).extend({'errors': null});
  82. self.tables = ko.observableArray();
  83. };
  84. var HiveTable = function(name) {
  85. var self = this;
  86. self.name = ko.observable(name).extend({'errors': null});
  87. self.columns = ko.observableArray();
  88. };
  89. var HBaseCluster = function(name) {
  90. var self = this;
  91. self.name = ko.observable(name).extend({'errors': null});
  92. self.tables = ko.observableArray();
  93. };
  94. var HBaseTable = function(name) {
  95. var self = this;
  96. self.name = ko.observable(name).extend({'errors': null});
  97. };
  98. // End Models
  99. // Start Wizard
  100. var Page = function(url, name, next, validate_fn) {
  101. var self = this;
  102. self.name = ko.observable(name);
  103. self.url = ko.observable(url);
  104. self.next = ko.observable(next);
  105. self.validate = validate_fn || function() { return true; };
  106. };
  107. var Wizard = function() {
  108. var self = this;
  109. self.rootPage = ko.observable();
  110. self.currentPage = ko.observable(self.rootPage());
  111. // Stack of previous pages.
  112. self.previousPages = ko.observableArray();
  113. self.pages = {};
  114. self.hasPrevious = ko.computed(function() {
  115. return self.previousPages().length > 0;
  116. });
  117. self.hasNext = ko.computed(function() {
  118. return !!(self.currentPage() && self.currentPage().next());
  119. });
  120. self.pageList = ko.computed(function() {
  121. var page = self.rootPage();
  122. var pages = [];
  123. while(page) {
  124. pages.push(page);
  125. page = self.pages[page.next()];
  126. }
  127. return pages;
  128. });
  129. self.previousUrl = ko.computed(function() {
  130. if (self.previousPages().length > 0) {
  131. return self.previousPages()[self.previousPages().length - 1].url();
  132. } else {
  133. return null;
  134. }
  135. });
  136. self.nextUrl = ko.computed(function() {
  137. if (self.currentPage() && self.currentPage().next()) {
  138. return self.currentPage().next();
  139. } else {
  140. return null;
  141. }
  142. });
  143. self.next = function() {
  144. if (self.hasNext() && self.currentPage().validate()) {
  145. self.previousPages.push(self.currentPage());
  146. self.currentPage(self.pages[self.currentPage().next()]);
  147. }
  148. };
  149. self.previous = function() {
  150. if (self.hasPrevious()) {
  151. self.currentPage(self.previousPages.pop());
  152. }
  153. };
  154. self.setPageByUrl = function(url) {
  155. var urls = ko.utils.arrayMap(self.pageList(), function(page) {
  156. return page.url();
  157. });
  158. var previousUrls = ko.utils.arrayMap(self.previousPages(), function(page) {
  159. return page.url();
  160. });
  161. if ($.inArray(url, previousUrls) != -1) {
  162. var previousPageURL = null;
  163. self.previous();
  164. while(self.hasPrevious() && self.currentPage().url() != url && self.currentPage().url() != previousPageURL) {
  165. previousPageURL = self.currentPage().url();
  166. self.previous();
  167. }
  168. } else if ($.inArray(url, urls) != -1) {
  169. var previousPageURL = null;
  170. while(self.hasNext() && self.currentPage().url() != url && self.currentPage().url() != previousPageURL) {
  171. previousPageURL = self.currentPage().url();
  172. self.next();
  173. }
  174. }
  175. };
  176. self.getPage = function(url, name, next, validate_fn) {
  177. self.pages;
  178. if (!self.pages[url]) {
  179. self.pages[url] = new Page(url, name, next, validate_fn);
  180. }
  181. return self.pages[url];
  182. };
  183. };
  184. // End Wizard
  185. // Start utils
  186. ko.bindingHandlers.routie = {
  187. init: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
  188. $(element).click(function() {
  189. var obj = ko.utils.unwrapObservable(valueAccessor());
  190. var url = null;
  191. var bubble = false;
  192. if ($.isPlainObject(obj)) {
  193. url = obj.url;
  194. bubble = !!obj.bubble;
  195. } else {
  196. url = obj;
  197. }
  198. routie(url);
  199. return bubble;
  200. });
  201. }
  202. };
  203. ko.bindingHandlers.filter = {
  204. init: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
  205. var obj = ko.utils.unwrapObservable(valueAccessor());
  206. var test_fn = obj.test;
  207. var list = obj.list;
  208. var filteredList = obj.filteredList;
  209. filteredList(list());
  210. $(element).keyup(function(e) {
  211. if (e.target.value) {
  212. filteredList(ko.utils.arrayFilter(list(), function(obj) {
  213. return test_fn(obj, e.target.value);
  214. }));
  215. } else {
  216. filteredList(list());
  217. }
  218. return (obj.bubble == undefined) ? false : obj.bubble;
  219. });
  220. }
  221. };
  222. ko.extenders.errors = function(target, options) {
  223. target.errors = ko.observableArray();
  224. target.errors.remove = function(obj) {
  225. var index = target.errors().indexOf(obj);
  226. if (index > -1) {
  227. target.errors.splice(index, 1);
  228. }
  229. };
  230. return target;
  231. };
  232. ko.extenders.selectable = function(target, options) {
  233. target.selected = ko.observable(false);
  234. target.toggleSelect = function() {
  235. target.selected(!target.selected());
  236. };
  237. return target;
  238. };
  239. ko.bindingHandlers.chosen = {
  240. init: function(element, options) {
  241. $(element).chosen(options);
  242. },
  243. update: function(element) {
  244. $(element).trigger('chosen:updated');
  245. }
  246. };
  247. ko.bindingHandlers.editableText = {
  248. init: function(element, valueAccessor) {
  249. $(element).attr('contenteditable', true);
  250. $(element).on('click', function() {
  251. $(element).focus();
  252. });
  253. $(element).on('blur', function() {
  254. var observable = valueAccessor();
  255. observable( $(this).text() );
  256. });
  257. },
  258. update: function(element, valueAccessor) {
  259. var value = ko.utils.unwrapObservable(valueAccessor());
  260. $(element).text(value);
  261. }
  262. };
  263. function chooseUniqueKey(collection) {
  264. function fieldChooser(fields) {
  265. if (fields.length > 0) {
  266. fields[0].uniqueKeyField(true);
  267. return true;
  268. }
  269. return false;
  270. }
  271. // Find a field named "ID"
  272. if (fieldChooser(ko.utils.arrayFilter(collection.fields(), function(field) {
  273. return field.name().toLowerCase() == 'id';
  274. }))) return;
  275. // Find a long
  276. if (fieldChooser(ko.utils.arrayFilter(collection.fields(), function(field) {
  277. return $.inArray(field.type().toLowerCase(), ['long', 'tlong', 'plong']) != -1;
  278. }))) return;
  279. // Find an integer
  280. if (fieldChooser(ko.utils.arrayFilter(collection.fields(), function(field) {
  281. return $.inArray(field.type().toLowerCase(), ['int', 'tint', 'pint']) != -1;
  282. }))) return;
  283. // Find first indexed field
  284. if (fieldChooser(ko.utils.arrayFilter(collection.fields(), function(field) {
  285. return field.indexed();
  286. }))) return;
  287. // Choose a field
  288. fieldChooser(collection.fields());
  289. }
  290. function chooseDefaultField(collection) {
  291. function fieldChooser(fields) {
  292. if (fields.length > 0) {
  293. fields[0].df(true);
  294. return true;
  295. }
  296. return false;
  297. }
  298. // Find a field named "text"
  299. if (fieldChooser(ko.utils.arrayFilter(collection.fields(), function(field) {
  300. return field.name().toLowerCase() == 'text';
  301. }))) return;
  302. // Find a text field
  303. if (fieldChooser(ko.utils.arrayFilter(collection.fields(), function(field) {
  304. return field.type().toLowerCase().substring(0, 4) == 'text';
  305. }))) return;
  306. // Find a string field
  307. if (fieldChooser(ko.utils.arrayFilter(collection.fields(), function(field) {
  308. return field.type().toLowerCase() == 'string';
  309. }))) return;
  310. // Find first indexed field
  311. if (fieldChooser(ko.utils.arrayFilter(collection.fields(), function(field) {
  312. return field.indexed();
  313. }))) return;
  314. // Choose a field
  315. fieldChooser(collection.fields());
  316. }
  317. function getCharacterLabel(character) {
  318. var LABELS = {
  319. '\t': '\\t'
  320. };
  321. if (LABELS[character]) {
  322. return LABELS[character];
  323. } else {
  324. return character;
  325. }
  326. }
  327. function validateNotNull(obs, message) {
  328. var ret = true;
  329. if (!obs()) {
  330. obs.errors.push(message);
  331. ret = false;
  332. } else {
  333. obs.errors.remove(message);
  334. }
  335. return ret;
  336. }
  337. // End utils