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