impala-dashboard.ko.js 7.7 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.addFacet = function(facet_json) {
  95. $.post("/impala/dashboard/new_facet", {
  96. "dashboard": ko.mapping.toJSON(self),
  97. "facet_json": ko.mapping.toJSON(facet_json),
  98. //"id": facet_json.widget_id,
  99. //"label": facet_json.name,
  100. //"field": facet_json.name,
  101. //"widget_type": facet_json.widgetType
  102. }, function (data) {
  103. if (data.status == 0) {
  104. var facet = ko.mapping.fromJS(data.facet);
  105. facet.properties.limit.subscribe(function () {
  106. vm.search();
  107. });
  108. self.facets.push(facet);
  109. vm.search();
  110. } else {
  111. $(document).trigger("error", data.message);
  112. }
  113. }).fail(function (xhr, textStatus, errorThrown) {});
  114. }
  115. self.getFacetById = function (facet_id) {
  116. var _facet = null;
  117. $.each(self.facets(), function (index, facet) {
  118. if (facet.id == facet_id) {
  119. _facet = facet;
  120. return false;
  121. }
  122. });
  123. return _facet;
  124. }
  125. }
  126. var ImpalaDashboardViewModel = function (query_json, dashboard_json) {
  127. var self = this;
  128. self.isEditing = ko.observable(true);
  129. self.toggleEditing = function () {
  130. self.isEditing(! self.isEditing());
  131. };
  132. self.isRetrievingResults = ko.observable(false);
  133. self.previewColumns = ko.observable("");
  134. self.columns = ko.observable([]);
  135. loadLayout(self, dashboard_json.layout);
  136. self.query = new Query(self, query_json);
  137. self.dashboard = new Dashboard(self, dashboard_json);
  138. self.results = ko.observableArray([]);
  139. self.results_facet = ko.observableArray([]);
  140. self.results_cols = ko.observableArray([]);
  141. self.init = function() {
  142. self.search();
  143. }
  144. self.search = function (callback) {
  145. self.isRetrievingResults(true);
  146. self.results.removeAll();
  147. var multiQs = $.map(self.dashboard.facets(), function(facet) {
  148. return $.post("/impala/dashboard/query", {
  149. "query": ko.mapping.toJSON(self.query),
  150. "dashboard": ko.mapping.toJSON(self.dashboard),
  151. "layout": ko.mapping.toJSON(self.columns),
  152. "facet": ko.mapping.toJSON(facet),
  153. }, function (data) {return data});
  154. });
  155. $.when.apply($, [
  156. $.post("/impala/dashboard/query", {
  157. "query": ko.mapping.toJSON(self.query),
  158. "dashboard": ko.mapping.toJSON(self.dashboard),
  159. "layout": ko.mapping.toJSON(self.columns),
  160. }, function (data) {
  161. self.isRetrievingResults(false);
  162. if (data.status == 0) {
  163. self.results_cols(data.cols)
  164. $.each(data.data, function (index, row) {
  165. self.results.push(row);
  166. });
  167. } else {
  168. $(document).trigger("error", data.message);
  169. }
  170. })
  171. ].concat(multiQs)
  172. )
  173. .done(function() {
  174. if (arguments.length > 1) { // If multi queries
  175. for (var i = 1; i < arguments.length; i++) {
  176. var facet = arguments[i][0];
  177. removeFrom(self.results_facet, facet.id);
  178. self.results_facet.push(ko.mapping.fromJS(facet));
  179. }
  180. }
  181. })
  182. .fail(function (xhr, textStatus, errorThrown) {
  183. $(document).trigger("error", textStatus);
  184. });
  185. };
  186. function removeFrom(collection, item_id) {
  187. $.each(collection(), function (index, item) {
  188. if (item.id() == item_id) {
  189. collection.remove(item);
  190. return false;
  191. }
  192. });
  193. }
  194. self.getFacetFromResult = function (facet_id) {
  195. var _facet = null;
  196. $.each(self.results_facet(), function (index, facet) {
  197. if (facet.id() == facet_id) {
  198. _facet = facet;
  199. return false;
  200. }
  201. });
  202. return _facet;
  203. }
  204. function bareWidgetBuilder(name, type){
  205. return new Widget({
  206. size: 12,
  207. id: UUID(),
  208. name: name,
  209. widgetType: type
  210. });
  211. }
  212. self.draggableFacet = ko.observable(bareWidgetBuilder("Facet", "facet-widget"));
  213. self.draggableResultset = ko.observable(bareWidgetBuilder("Grid Results", "resultset-widget"));
  214. self.draggableHistogram = ko.observable(bareWidgetBuilder("Histogram", "histogram-widget"));
  215. self.draggableBar = ko.observable(bareWidgetBuilder("Bar Chart", "bar-widget"));
  216. self.draggableMap = ko.observable(bareWidgetBuilder("Map", "map-widget"));
  217. self.draggableLine = ko.observable(bareWidgetBuilder("Line Chart", "line-widget"));
  218. self.draggablePie = ko.observable(bareWidgetBuilder("Pie Chart", "pie-widget"));
  219. self.draggableFilter = ko.observable(bareWidgetBuilder("Filter Bar", "filter-widget"));
  220. };