impala-dashboard.ko.js 8.2 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. function magicLayout(vm) {
  17. loadLayout(vm, vm.initial.layout);
  18. $(document).trigger("magicLayout");
  19. }
  20. function loadLayout(viewModel, json_layout) {
  21. var _columns = [];
  22. $(json_layout).each(function (cnt, json_col) {
  23. var _rows = [];
  24. $(json_col.rows).each(function (rcnt, json_row) {
  25. var row = new Row([], viewModel);
  26. $(json_row.widgets).each(function (wcnt, widget) {
  27. row.addWidget(new Widget({
  28. size:widget.size,
  29. id: widget.id,
  30. name: widget.name,
  31. widgetType: widget.widgetType,
  32. properties: widget.properties,
  33. offset: widget.offset,
  34. loading: true,
  35. vm: viewModel
  36. }));
  37. });
  38. _rows.push(row);
  39. });
  40. var column = new Column(json_col.size, _rows);
  41. _columns = _columns.concat(column);
  42. });
  43. viewModel.columns(_columns);
  44. }
  45. // End dashboard lib
  46. var Query = function (vm, query) {
  47. var self = this;
  48. self.qs = ko.mapping.fromJS([{'q': ''}]);
  49. self.fqs = ko.mapping.fromJS([]);
  50. self.toggleFacet = function (data) {
  51. var fq = self.getFacetFilter(data.widget.id());
  52. if (fq == null) {
  53. self.fqs.push(ko.mapping.fromJS({
  54. 'id': data.widget.id(),
  55. 'field': data.widget.field(),
  56. 'filter': [data.facet[0]],
  57. 'type': 'field'
  58. }));
  59. } else {
  60. $.each(self.fqs(), function (index, fq) {
  61. if (fq.id() == data.widget.id()) {
  62. if (fq.filter.indexOf(data.facet[0]) > -1) {
  63. fq.filter.remove(data.facet[0]);
  64. if (fq.filter().length == 0) {
  65. self.fqs.remove(fq);
  66. }
  67. } else {
  68. fq.filter.push(data.facet[0]);
  69. }
  70. }
  71. });
  72. }
  73. vm.search();
  74. }
  75. self.getFacetFilter = function (facet_id) {
  76. var _facet = null;
  77. $.each(self.fqs(), function (index, facet) {
  78. if (facet.id() == facet_id) {
  79. _facet = facet;
  80. return false;
  81. }
  82. });
  83. return _facet;
  84. }
  85. }
  86. var Dashboard = function (vm, dashboard) {
  87. var self = this;
  88. self.facets = ko.mapping.fromJS(dashboard.facets);
  89. self.properties = ko.observable(dashboard.properties);
  90. self.fields = ko.mapping.fromJS([{'name': 'code'}, {'name': 'description'}, {'name': 'total_emp'}, {'name': 'salary'}]);
  91. self.fieldNames = ko.computed(function () {
  92. return $.map(self.fields(), function (field) { return field.name()});
  93. });
  94. self.resultsetShowFieldList = ko.observable(true);
  95. self.resultsetFieldsFilter = ko.observable(""); // For UI
  96. self.resultsetSelectedFields = ko.observableArray(self.fieldNames());
  97. self.resultsetFilteredFields = ko.computed(function() {
  98. var _fields = [];
  99. $.each(self.fields(), function (index, field) {
  100. if (self.resultsetFieldsFilter() == "" || field.name().toLowerCase().indexOf(self.resultsetFieldsFilter().toLowerCase()) > -1){
  101. _fields.push(field);
  102. }
  103. });
  104. return _fields;
  105. });
  106. self.selectedNewFacetField = ko.observable();
  107. self.addFacet = function(facet_json) {
  108. $.post("/impala/dashboard/new_facet", {
  109. "dashboard": ko.mapping.toJSON(self),
  110. "facet_json": ko.mapping.toJSON(facet_json),
  111. "field": self.selectedNewFacetField(),
  112. }, function (data) {
  113. if (data.status == 0) {
  114. var facet = ko.mapping.fromJS(data.facet);
  115. facet.properties.limit.subscribe(function () {
  116. vm.search();
  117. });
  118. self.facets.push(facet);
  119. vm.search();
  120. } else {
  121. $(document).trigger("error", data.message);
  122. }
  123. }).fail(function (xhr, textStatus, errorThrown) {});
  124. }
  125. self.getFacetById = function (facet_id) {
  126. var _facet = null;
  127. $.each(self.facets(), function (index, facet) {
  128. if (facet.id == facet_id) {
  129. _facet = facet;
  130. return false;
  131. }
  132. });
  133. return _facet;
  134. }
  135. }
  136. var ImpalaDashboardViewModel = function (query_json, dashboard_json) {
  137. var self = this;
  138. self.isEditing = ko.observable(true);
  139. self.toggleEditing = function () {
  140. self.isEditing(! self.isEditing());
  141. };
  142. self.isRetrievingResults = ko.observable(false);
  143. self.previewColumns = ko.observable("");
  144. self.columns = ko.observable([]);
  145. loadLayout(self, dashboard_json.layout);
  146. self.query = new Query(self, query_json);
  147. self.dashboard = new Dashboard(self, dashboard_json);
  148. self.results = ko.observableArray([]);
  149. self.results_facet = ko.observableArray([]);
  150. self.results_cols = ko.observableArray([]);
  151. self.init = function() {
  152. self.search();
  153. }
  154. self.search = function (callback) {
  155. self.isRetrievingResults(true);
  156. self.results.removeAll();
  157. var multiQs = $.map(self.dashboard.facets(), function(facet) {
  158. return $.post("/impala/dashboard/query", {
  159. "query": ko.mapping.toJSON(self.query),
  160. "dashboard": ko.mapping.toJSON(self.dashboard),
  161. "layout": ko.mapping.toJSON(self.columns),
  162. "facet": ko.mapping.toJSON(facet),
  163. }, function (data) {return data});
  164. });
  165. $.when.apply($, [
  166. $.post("/impala/dashboard/query", {
  167. "query": ko.mapping.toJSON(self.query),
  168. "dashboard": ko.mapping.toJSON(self.dashboard),
  169. "layout": ko.mapping.toJSON(self.columns),
  170. }, function (data) {
  171. self.isRetrievingResults(false);
  172. if (data.status == 0) {
  173. self.results_cols(data.cols)
  174. $.each(data.data, function (index, row) {
  175. self.results.push(row);
  176. });
  177. } else {
  178. $(document).trigger("error", data.message);
  179. }
  180. })
  181. ].concat(multiQs)
  182. )
  183. .done(function() {
  184. if (multiQs.length > 0) {
  185. for (var i = 1; i < arguments.length; i++) {
  186. var facet = arguments[i][0];
  187. removeFrom(self.results_facet, facet.id);
  188. self.results_facet.push(ko.mapping.fromJS(facet));
  189. }
  190. }
  191. })
  192. .fail(function (xhr, textStatus, errorThrown) {
  193. $(document).trigger("error", textStatus);
  194. });
  195. };
  196. function removeFrom(collection, item_id) {
  197. $.each(collection(), function (index, item) {
  198. if (item.id() == item_id) {
  199. collection.remove(item);
  200. return false;
  201. }
  202. });
  203. }
  204. self.getFacetFromResult = function (facet_id) {
  205. var _facet = null;
  206. $.each(self.results_facet(), function (index, facet) {
  207. if (facet.id() == facet_id) {
  208. _facet = facet;
  209. return false;
  210. }
  211. });
  212. return _facet;
  213. }
  214. function bareWidgetBuilder(name, type){
  215. return new Widget({
  216. size: 12,
  217. id: UUID(),
  218. name: name,
  219. widgetType: type
  220. });
  221. }
  222. self.draggableFacet = ko.observable(bareWidgetBuilder("Facet", "facet-widget"));
  223. self.draggableResultset = ko.observable(bareWidgetBuilder("Grid Results", "resultset-widget"));
  224. self.draggableHistogram = ko.observable(bareWidgetBuilder("Histogram", "histogram-widget"));
  225. self.draggableBar = ko.observable(bareWidgetBuilder("Bar Chart", "bar-widget"));
  226. self.draggableMap = ko.observable(bareWidgetBuilder("Map", "map-widget"));
  227. self.draggableLine = ko.observable(bareWidgetBuilder("Line Chart", "line-widget"));
  228. self.draggablePie = ko.observable(bareWidgetBuilder("Pie Chart", "pie-widget"));
  229. self.draggableFilter = ko.observable(bareWidgetBuilder("Filter Bar", "filter-widget"));
  230. };