impala-dashboard.ko.js 6.8 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.observable(dashboard.facets);
  89. self.properties = ko.observable(dashboard.properties);
  90. self.addFacet = function(data) {
  91. }
  92. self.getFacetById = function (facet_id) {
  93. var _facet = null;
  94. $.each(self.facets(), function (index, facet) {
  95. if (facet.id == facet_id) {
  96. _facet = facet;
  97. return false;
  98. }
  99. });
  100. return _facet;
  101. }
  102. }
  103. var ImpalaDashboardViewModel = function (query_json, dashboard_json) {
  104. var self = this;
  105. self.isEditing = ko.observable(true);
  106. self.toggleEditing = function () {
  107. self.isEditing(! self.isEditing());
  108. };
  109. self.isRetrievingResults = ko.observable(false);
  110. self.previewColumns = ko.observable("");
  111. self.columns = ko.observable([]);
  112. loadLayout(self, dashboard_json.layout);
  113. self.query = new Query(self, query_json);
  114. self.dashboard = new Dashboard(self, dashboard_json);
  115. self.results = ko.observableArray([]);
  116. self.results_facet = ko.observableArray([]);
  117. self.results_cols = ko.observableArray([]);
  118. self.init = function() {
  119. self.search();
  120. }
  121. self.search = function (callback) {
  122. self.isRetrievingResults(true);
  123. self.results.removeAll();
  124. var multiQs = $.map(self.dashboard.facets(), function(facet) {
  125. return $.post("/impala/query", {
  126. "query": ko.mapping.toJSON(self.query),
  127. "dashboard": ko.mapping.toJSON(self.dashboard),
  128. "layout": ko.mapping.toJSON(self.columns),
  129. "facet": ko.mapping.toJSON(facet),
  130. }, function (data) {return data});
  131. });
  132. $.when.apply($, [
  133. $.post("/impala/query", {
  134. "query": ko.mapping.toJSON(self.query),
  135. "dashboard": ko.mapping.toJSON(self.dashboard),
  136. "layout": ko.mapping.toJSON(self.columns),
  137. }, function (data) {
  138. self.isRetrievingResults(false);
  139. if (data.status == 0) {
  140. self.results_cols(data.cols)
  141. $.each(data.data, function (index, row) {
  142. self.results.push(row);
  143. });
  144. } else {
  145. $(document).trigger("error", data.message);
  146. }
  147. })
  148. ].concat(multiQs)
  149. )
  150. .done(function() {
  151. if (arguments.length > 1) { // If multi queries
  152. for (var i = 1; i < arguments.length; i++) {
  153. var facet = arguments[i][0];
  154. removeFrom(self.results_facet, facet.id);
  155. self.results_facet.push(ko.mapping.fromJS(facet));
  156. }
  157. }
  158. })
  159. .fail(function (xhr, textStatus, errorThrown) {
  160. $(document).trigger("error", data.message);
  161. });
  162. };
  163. function removeFrom(collection, item_id) {
  164. $.each(collection(), function (index, item) {
  165. if (item.id() == item_id) {
  166. collection.remove(item);
  167. return false;
  168. }
  169. });
  170. }
  171. self.getFacetFromResult = function (facet_id) {
  172. var _facet = null;
  173. $.each(self.results_facet(), function (index, facet) {
  174. if (facet.id() == facet_id) {
  175. _facet = facet;
  176. return false;
  177. }
  178. });
  179. return _facet;
  180. }
  181. function bareWidgetBuilder(name, type){
  182. return new Widget({
  183. size: 12,
  184. id: UUID(),
  185. name: name,
  186. widgetType: type
  187. });
  188. }
  189. self.draggableFacet = ko.observable(bareWidgetBuilder("Facet", "facet-widget"));
  190. self.draggableResultset = ko.observable(bareWidgetBuilder("Grid Results", "resultset-widget"));
  191. self.draggableHistogram = ko.observable(bareWidgetBuilder("Histogram", "histogram-widget"));
  192. self.draggableBar = ko.observable(bareWidgetBuilder("Bar Chart", "bar-widget"));
  193. self.draggableMap = ko.observable(bareWidgetBuilder("Map", "map-widget"));
  194. self.draggableLine = ko.observable(bareWidgetBuilder("Line Chart", "line-widget"));
  195. self.draggablePie = ko.observable(bareWidgetBuilder("Pie Chart", "pie-widget"));
  196. self.draggableFilter = ko.observable(bareWidgetBuilder("Filter Bar", "filter-widget"));
  197. };