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