workflow-editor.ko.js 22 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. ko.bindingHandlers.droppable = {
  17. init: function(element, valueAccessor) {
  18. var _dropElement = $(element);
  19. var _options = valueAccessor();
  20. if (_options.enabled){
  21. var _dropOptions = {
  22. hoverClass: 'drop-target-highlight',
  23. drop: _options.onDrop
  24. };
  25. _dropElement.droppable(_dropOptions);
  26. }
  27. }
  28. };
  29. function magicLayout(vm) {
  30. loadLayout(vm, vm.initial.layout);
  31. $(document).trigger("magicLayout");
  32. }
  33. function loadLayout(viewModel, json_layout) {
  34. var _columns = [];
  35. $(json_layout).each(function (cnt, json_col) {
  36. var _rows = [];
  37. $(json_col.rows).each(function (rcnt, json_row) {
  38. var row = new Row([], viewModel);
  39. $(json_row.widgets).each(function (wcnt, widget) {
  40. row.addWidget(new Widget({
  41. size:widget.size,
  42. id: widget.id,
  43. name: widget.name,
  44. widgetType: widget.widgetType,
  45. properties: widget.properties,
  46. offset: widget.offset,
  47. loading: true,
  48. vm: viewModel
  49. }));
  50. });
  51. $(json_row.columns).each(function (ccnt, column) {
  52. var _irows = [];
  53. $(column.rows).each(function (ircnt, json_irow) {
  54. var _irow = new Row([], viewModel);
  55. $(json_irow.widgets).each(function (iwcnt, iwidget) {
  56. _irow.addWidget(new Widget({
  57. size:iwidget.size,
  58. id: iwidget.id,
  59. name: iwidget.name,
  60. widgetType: iwidget.widgetType,
  61. properties: iwidget.properties,
  62. offset: iwidget.offset,
  63. loading: true,
  64. vm: viewModel
  65. }));
  66. });
  67. _irows.push(_irow);
  68. });
  69. row.addColumn(new Column(column.size, _irows));
  70. });
  71. _rows.push(row);
  72. });
  73. var column = new Column(json_col.size, _rows);
  74. _columns = _columns.concat(column);
  75. });
  76. viewModel.columns(_columns);
  77. }
  78. // End dashboard lib
  79. var Node = function (node) {
  80. var self = this;
  81. var type = typeof node.widgetType != "undefined" ? node.widgetType : node.type;
  82. self.id = ko.observable(typeof node.id != "undefined" && node.id != null ? node.id : UUID());
  83. self.name = ko.observable(typeof node.name != "undefined" && node.name != null ? node.name : "");
  84. self.type = ko.observable(typeof type != "undefined" && type != null ? type : "");
  85. self.properties = ko.mapping.fromJS(typeof node.properties != "undefined" && node.properties != null ? node.properties : {});
  86. self.children = ko.mapping.fromJS(typeof node.children != "undefined" && node.children != null ? node.children : []);
  87. self.get_link = function(name) {
  88. var _link = null;
  89. $.each(self.children(), function(index, link) {
  90. if (name in link) {
  91. _link = link;
  92. return false;
  93. }
  94. });
  95. return _link;
  96. }
  97. self.set_link = function(name, node_id) {
  98. var _link = self.get_link(name);
  99. if (_link == null) {
  100. _link = {};
  101. self.children.push(_link);
  102. }
  103. _link[name] = node_id;
  104. }
  105. self.remove_link = function(name, child) {
  106. var _link = null;
  107. $.each(self.children(), function(index, link) {
  108. var _l = ko.mapping.toJS(link);
  109. if (name in _l && _l[name] == child) {
  110. _link = link;
  111. return false;
  112. }
  113. });
  114. if (_link != null) {
  115. self.children.remove(_link);
  116. }
  117. }
  118. }
  119. var Workflow = function (vm, workflow) {
  120. var self = this;
  121. self.id = ko.observable(typeof workflow.id != "undefined" && workflow.id != null ? workflow.id : null);
  122. self.uuid = ko.observable(typeof workflow.uuid != "undefined" && workflow.uuid != null ? workflow.uuid : UUID());
  123. self.name = ko.observable(typeof workflow.name != "undefined" && workflow.name != null ? workflow.name : "");
  124. self.properties = ko.mapping.fromJS(typeof workflow.properties != "undefined" && workflow.properties != null ? workflow.properties : {});
  125. self.nodes = ko.observableArray([]);
  126. self.linkMapping = ko.computed(function() {
  127. var mapping = {};
  128. $.each(self.nodes(), function(index, node) {
  129. var links = []
  130. $.each(node.children(), function(index, link) {
  131. if ('to' in link) {
  132. links.push(link['to']);
  133. }
  134. });
  135. mapping[node.id()] = links
  136. });
  137. return mapping;
  138. });
  139. self.loadNodes = function(workflow) {
  140. var nodes = []
  141. $.each(workflow.nodes, function(index, node) {
  142. var _node = new Node(node);
  143. nodes.push(_node);
  144. });
  145. self.nodes(nodes)
  146. }
  147. self.newNode = function(widget) {
  148. $.ajax({
  149. type: "POST",
  150. url: "/oozie/editor/workflow/new_node/",
  151. data: {
  152. "workflow": ko.mapping.toJSON(workflow),
  153. "node": ko.mapping.toJSON(widget)
  154. },
  155. success: function (data) {
  156. if (data.status == 0) {
  157. viewModel.addActionProperties(data.properties);
  158. viewModel.addActionWorkflows(data.workflows);
  159. }
  160. },
  161. async: false
  162. });
  163. };
  164. self.addNode = function(widget) {
  165. // Todo get parent cell, link nodes... when we have the new layout
  166. $.post("/oozie/editor/workflow/add_node/", {
  167. "workflow": ko.mapping.toJSON(workflow),
  168. "node": ko.mapping.toJSON(widget),
  169. "properties": ko.mapping.toJSON(viewModel.addActionProperties()),
  170. "subworkflow": viewModel.selectedSubWorkflow() ? ko.mapping.toJSON(viewModel.selectedSubWorkflow()) : '{}',
  171. }, function (data) {
  172. if (data.status == 0) {
  173. var _node = ko.mapping.toJS(widget);
  174. _node.properties = data.properties;
  175. _node.name = data.name;
  176. var node = new Node(_node);
  177. // Add to list of nodes
  178. var end = self.nodes.pop();
  179. self.nodes.push(node);
  180. self.nodes.push(end);
  181. // if node != kill node
  182. // Added to the side ?
  183. if (vm.currentlyCreatingFork) {
  184. var parent = self.getNodeById('3f107997-04cc-8733-60a9-a4bb62cebffc');
  185. if (parent.type() != 'fork-widget') {
  186. var fork = new Node(vm.currentlyCreatedFork);
  187. var join = new Node(vm.currentlyCreatedJoin);
  188. // Start node
  189. var afterStartId = ko.mapping.toJS(parent.get_link('to')).to;
  190. var afterStart = self.getNodeById(afterStartId);
  191. fork.children.push({'to': afterStartId});
  192. fork.children.push({'to': node.id()});
  193. parent.get_link('to')['to'] = fork.id();
  194. join.set_link('to', afterStart.get_link('to')['to']);
  195. afterStart.set_link('to', join.id());
  196. node.set_link('to', join.id());
  197. node.set_link('error', '17c9c895-5a16-7443-bb81-f34b30b21548');
  198. var end = self.nodes.pop();
  199. self.nodes.push(fork);
  200. self.nodes.push(join);
  201. self.nodes.push(end);
  202. // Regular node
  203. // Join node
  204. } else {
  205. // Just add to existing fork
  206. }
  207. } else {
  208. var parentWidget = vm.getWidgetPredecessor(node.id());
  209. var parent = self.getNodeById(parentWidget.id());
  210. if (parentWidget.widgetType() == 'start-widget') {
  211. // Star node link to new node
  212. parent.set_link('to', node.id());
  213. // Link to end
  214. node.set_link('to', '33430f0f-ebfa-c3ec-f237-3e77efa03d0a');
  215. node.set_link('error', '17c9c895-5a16-7443-bb81-f34b30b21548');
  216. } else if (parentWidget.widgetType() == 'pig-widget') {
  217. // Parent regular node
  218. node.set_link('to', parent.get_link('to')['to']);
  219. node.set_link('error', '17c9c895-5a16-7443-bb81-f34b30b21548');
  220. parent.set_link('to', node.id());
  221. }
  222. // Parent fork/decision/join...
  223. }
  224. vm.currentlyCreatingFork = false;
  225. } else {
  226. $(document).trigger("error", data.message);
  227. }
  228. }).fail(function (xhr, textStatus, errorThrown) {
  229. $(document).trigger("error", xhr.responseText);
  230. });
  231. };
  232. self.removeNode = function(node_id) {
  233. var node = self.getNodeById(node_id);
  234. var parentWidget = vm.getWidgetPredecessor(node_id); // Use smarter self.getParents if action node with multi parents
  235. var parent = self.getNodeById(parentWidget.id());
  236. var childLink = node.get_link('to');
  237. var childId = ko.mapping.toJS(childLink)['to'];
  238. parent.remove_link('to', node_id);
  239. parent.children.push({'to': childId});
  240. self.nodes.remove(node);
  241. // If need to remove fork
  242. if (parentWidget.widgetType() == 'fork-widget') {
  243. var fork = parent;
  244. var join = self.getNodeById(childId);
  245. if (join.type() == 'join-widget') {
  246. if (join.children().length == 1) {
  247. // Link top to above and delete fork
  248. var forkParent = self.getParents(fork.id());
  249. forkParent.set_link('to', ko.mapping.toJS(fork.get_link('to'))['to']);
  250. self.nodes.remove(fork);
  251. // Link bottom to child of join
  252. var beboreJoin = self.getParents(childId);
  253. var joinChildId = ko.mapping.toJS(join.get_link('to'))['to'];
  254. beboreJoin.set_link('to', joinChildId);
  255. self.nodes.remove(join);
  256. }
  257. }
  258. }
  259. };
  260. self.getParents = function(node_id) { // Only one for now
  261. var _node = null;
  262. $.each(self.nodes(), function (index, node) {
  263. $.each(node.children(), function(index, link) {
  264. var _link = ko.mapping.toJS(link);
  265. if ('to' in _link && _link.to == node_id) {
  266. _node = node;
  267. return false;
  268. }
  269. })
  270. });
  271. return _node;
  272. }
  273. self.getNodeById = function (node_id) {
  274. var _node = null;
  275. $.each(self.nodes(), function (index, node) {
  276. if (node.id() == node_id) {
  277. _node = node;
  278. return false;
  279. }
  280. });
  281. return _node;
  282. };
  283. }
  284. var WorkflowEditorViewModel = function (layout_json, workflow_json, credentials_json) {
  285. var self = this;
  286. self.isNested = ko.observable(true);
  287. self.isEditing = ko.observable(true);
  288. self.toggleEditing = function () {
  289. self.isEditing(! self.isEditing());
  290. };
  291. self.columns = ko.observable([]);
  292. self.previewColumns = ko.observable("");
  293. self.workflow = new Workflow(self, workflow_json);
  294. self.credentials = ko.mapping.fromJSON(credentials_json);
  295. self.inited = ko.observable(self.columns().length > 0);
  296. self.init = function(callback) {
  297. loadLayout(self, layout_json);
  298. self.workflow.loadNodes(workflow_json);
  299. }
  300. self.depen = ko.observableArray(workflow_json.dependencies);
  301. self.addActionProperties = ko.observableArray([]);
  302. self.addActionWorkflows = ko.observableArray([]);
  303. self.selectedSubWorkflow = ko.observable();
  304. self.currentlyDraggedWidget = null;
  305. self.currentlyCreatingFork = false;
  306. self.currentlyCreatedFork = null;
  307. self.currentlyCreatedJoin = null;
  308. self.isDragging = ko.observable(false);
  309. self.setCurrentDraggedWidget = function (widget) {
  310. self.currentlyDraggedWidget = widget;
  311. }
  312. self.addDraggedWidget = function (row, atBeginning) {
  313. if (self.currentlyDraggedWidget != null) {
  314. var _parentCol = self.getRowParentColumn(row.id());
  315. var _rowIdx = 0;
  316. $.each(_parentCol.rows(), function (i, irow) {
  317. if (irow.id() == row.id()) {
  318. _rowIdx = i;
  319. }
  320. });
  321. var _newRow = _parentCol.addEmptyRow(false, _rowIdx);
  322. var _w = new Widget({
  323. size: self.currentlyDraggedWidget.size(),
  324. id: UUID(),
  325. name: self.currentlyDraggedWidget.name(),
  326. widgetType: self.currentlyDraggedWidget.widgetType(),
  327. properties: self.currentlyDraggedWidget.properties(),
  328. offset: self.currentlyDraggedWidget.offset(),
  329. loading: true,
  330. vm: self
  331. });
  332. _newRow.widgets([_w]);
  333. return _w;
  334. }
  335. }
  336. self.addSideDraggedWidget = function (row, atBeginning) {
  337. if (self.currentlyDraggedWidget != null) {
  338. var _parentCol = self.getRowParentColumn(row.id());
  339. var _rowIdx = 0;
  340. $.each(_parentCol.rows(), function (i, irow) {
  341. if (irow.id() == row.id()) {
  342. _rowIdx = i;
  343. }
  344. });
  345. var _addForkAndJoin = (row.columns().length == 0);
  346. if (_addForkAndJoin){
  347. var _forkRow = _parentCol.addEmptyRow(false, _rowIdx);
  348. var _id = UUID();
  349. var _fork = new Widget({
  350. size: 12,
  351. id: _id,
  352. name: 'fork' + '-' + _id.slice(0, 4),
  353. widgetType: "fork-widget",
  354. properties: {},
  355. offset: 0,
  356. loading: true,
  357. vm: self
  358. });
  359. _forkRow.widgets([_fork]);
  360. }
  361. var _w = new Widget({
  362. size: self.currentlyDraggedWidget.size(),
  363. id: UUID(),
  364. name: self.currentlyDraggedWidget.name(),
  365. widgetType: self.currentlyDraggedWidget.widgetType(),
  366. properties: self.currentlyDraggedWidget.properties(),
  367. offset: self.currentlyDraggedWidget.offset(),
  368. loading: true,
  369. vm: self
  370. });
  371. var _col = row.addEmptyColumn(atBeginning);
  372. var _row = new Row([_w], self);
  373. _col.addRow(_row);
  374. if (_addForkAndJoin) {
  375. var _joinRow = _parentCol.addEmptyRow(false, _rowIdx + 2);
  376. var _id = UUID();
  377. var _join = new Widget({
  378. size: 12,
  379. id: _id,
  380. name: "join" + '-' + _id.slice(0, 4),
  381. widgetType: "join-widget",
  382. properties: {},
  383. offset: 0,
  384. loading: true,
  385. vm: self
  386. });
  387. _joinRow.widgets([_join]);
  388. self.currentlyCreatingFork = true;
  389. self.currentlyCreatedFork = ko.mapping.toJS(_fork);
  390. self.currentlyCreatedJoin = ko.mapping.toJS(_join);
  391. }
  392. self.currentlyDraggedWidget = null;
  393. return _w;
  394. }
  395. }
  396. self.getWidgetById = function (widget_id) {
  397. var _widget = null;
  398. $.each(self.columns(), function (i, col) {
  399. $.each(col.rows(), function (j, row) {
  400. $.each(row.widgets(), function (z, widget) {
  401. if (widget.id() == widget_id){
  402. _widget = widget;
  403. return false;
  404. }
  405. });
  406. });
  407. });
  408. return _widget;
  409. }
  410. self.removeWidget = function (widget_json) {
  411. self.workflow.removeNode(widget_json.id());
  412. self.removeWidgetById(widget_json.id());
  413. }
  414. self.removeWidgetById = function (widget_id) {
  415. $.each(self.columns(), function (i, col) {
  416. self.deeplyRemoveWidgetById(widget_id, col, self)
  417. });
  418. }
  419. self.deeplyRemoveWidgetById = function (widget_id, col, parent) {
  420. if (col) {
  421. $.each(col.rows(), function (j, row) {
  422. if (row && row.widgets()){
  423. $.each(row.widgets(), function (z, widget) {
  424. if (widget.id() == widget_id) {
  425. row.widgets.remove(widget);
  426. col.rows.remove(row);
  427. }
  428. });
  429. }
  430. if (row && row.columns()) {
  431. $.each(row.columns(), function (i, icol) {
  432. self.deeplyRemoveWidgetById(widget_id, icol, row);
  433. });
  434. }
  435. });
  436. if (col.rows().length == 0) {
  437. parent.columns.remove(col);
  438. if (parent.columns().length > 1) {
  439. var _size = Math.max(1, Math.floor(12 / (parent.columns().length)));
  440. parent.columns().forEach(function (icol) {
  441. icol.size(_size);
  442. });
  443. }
  444. else {
  445. var _rows = parent.columns()[0].rows();
  446. var _parentRows = self.getRowParentColumn(parent.id()).rows;
  447. var _prevRowIdx = -1;
  448. for (var i = 0; i < _parentRows().length; i++) {
  449. if (_parentRows()[i].id() == parent.id()) {
  450. break;
  451. }
  452. _prevRowIdx = i;
  453. }
  454. if (_prevRowIdx > -1 && _parentRows()[_prevRowIdx].widgets().length > 0 && _parentRows()[_prevRowIdx].widgets()[0].widgetType() == "fork-widget"){
  455. _parentRows.remove(_parentRows()[_prevRowIdx]);
  456. _parentRows.remove(_parentRows()[_prevRowIdx+1]);
  457. }
  458. for (var i=0;i<_rows.length;i++){
  459. if (i==0){
  460. parent.widgets(_rows[i].widgets());
  461. }
  462. else {
  463. _parentRows.push(_rows[i]);
  464. }
  465. }
  466. parent.columns([]);
  467. }
  468. }
  469. }
  470. }
  471. self.getWidgetPredecessor = function (widget_id) {
  472. var _row = self.getWidgetParentRow(widget_id);
  473. var _col = self.getRowParentColumn(_row.id());
  474. var _prevRow = null;
  475. for (var i = 0; i < _col.rows().length; i++) {
  476. if (_col.rows()[i].id() == _row.id()) {
  477. break;
  478. }
  479. _prevRow = _col.rows()[i];
  480. }
  481. if (_prevRow != null) {
  482. return _prevRow.widgets()[0];
  483. }
  484. else {
  485. var _parentRow = self.getColumnParentRow(_col.id());
  486. var _parentColumn = self.getRowParentColumn(_parentRow.id());
  487. var _prevParentRow = null;
  488. for (var i = 0; i < _parentColumn.rows().length; i++) {
  489. if (_parentColumn.rows()[i].id() == _parentRow.id()) {
  490. break;
  491. }
  492. _prevParentRow = _parentColumn.rows()[i];
  493. }
  494. if (_prevParentRow != null) {
  495. return _prevParentRow.widgets()[0];
  496. }
  497. }
  498. return null;
  499. }
  500. self.getWidgetParentRow = function (widget_id) {
  501. var _row = null;
  502. for (var i = 0; i < self.columns().length; i++) {
  503. _row = self.traverseColumnForWidget(widget_id, self.columns()[i]);
  504. if (_row != null) {
  505. break;
  506. }
  507. }
  508. return _row;
  509. }
  510. self.getRowParentColumn = function (row_id) {
  511. var _column = null;
  512. for (var i = 0; i < self.columns().length; i++) {
  513. _column = self.traverseColumnForColumn(row_id, self.columns()[i]);
  514. }
  515. return _column;
  516. }
  517. self.getColumnParentRow = function (col_id) {
  518. var _row = null;
  519. for (var i = 0; i < self.columns().length; i++) {
  520. _row = self.traverseColumnForRow(col_id, self.columns()[i]);
  521. if (_row != null) {
  522. break;
  523. }
  524. }
  525. return _row;
  526. }
  527. self.getRowParentRow = function (row_id) {
  528. var _col = self.getRowParentColumn(row_id);
  529. if (_col != null) {
  530. return self.getColumnParentRow(_col.id());
  531. }
  532. }
  533. self.traverseColumnForColumn = function (row_id, col) {
  534. var _column = null;
  535. if (col) {
  536. for (var j = 0; j < col.rows().length; j++) {
  537. var row = col.rows()[j];
  538. if (row.id() == row_id) {
  539. _column = col;
  540. break;
  541. }
  542. for (var z = 0; z < row.columns().length; z++) {
  543. _column = self.traverseColumnForColumn(row_id, row.columns()[z]);
  544. if (_column != null) {
  545. break;
  546. }
  547. }
  548. }
  549. }
  550. return _column;
  551. }
  552. self.traverseColumnForRow = function (col_id, col) {
  553. var _row = null;
  554. if (col) {
  555. for (var j = 0; j < col.rows().length; j++) {
  556. var row = col.rows()[j];
  557. for (var z = 0; z < row.columns().length; z++) {
  558. var _col = row.columns()[z];
  559. if (_col.id() == col_id) {
  560. _row = row;
  561. }
  562. else {
  563. _row = self.traverseColumnForRow(col_id, _col);
  564. }
  565. if (_row != null) {
  566. break;
  567. }
  568. }
  569. }
  570. }
  571. return _row;
  572. }
  573. self.traverseColumnForWidget = function (widget_id, col) {
  574. var _row = null;
  575. if (col) {
  576. for (var j = 0; j < col.rows().length; j++) {
  577. var row = col.rows()[j];
  578. for (var z = 0; z < row.widgets().length; z++) {
  579. var widget = row.widgets()[z];
  580. if (widget.id() == widget_id) {
  581. _row = row;
  582. break;
  583. }
  584. }
  585. if (_row != null) {
  586. break;
  587. }
  588. for (var z = 0; z < row.columns().length; z++) {
  589. _row = self.traverseColumnForWidget(widget_id, row.columns()[z]);
  590. if (_row != null) {
  591. break;
  592. }
  593. }
  594. }
  595. }
  596. return _row;
  597. }
  598. self.save = function () {
  599. $.post("/oozie/editor/workflow/save/", {
  600. "layout": ko.mapping.toJSON(self.columns),
  601. "workflow": ko.mapping.toJSON(self.workflow)
  602. }, function (data) {
  603. if (data.status == 0) {
  604. self.workflow.id(data.id);
  605. $(document).trigger("info", data.message);
  606. if (window.location.search.indexOf("workflow") == -1) {
  607. window.location.hash = '#workflow=' + data.id;
  608. }
  609. }
  610. else {
  611. $(document).trigger("error", data.message);
  612. }
  613. }).fail(function (xhr, textStatus, errorThrown) {
  614. $(document).trigger("error", xhr.responseText);
  615. });
  616. };
  617. self.gen_xml = function () {
  618. $.post("/oozie/editor/workflow/gen_xml/", {
  619. "layout": ko.mapping.toJSON(self.columns),
  620. "workflow": ko.mapping.toJSON(self.workflow)
  621. }, function (data) {
  622. if (data.status == 0) {
  623. alert(data.xml);
  624. }
  625. else {
  626. $(document).trigger("error", data.message);
  627. }
  628. }).fail(function (xhr, textStatus, errorThrown) {
  629. $(document).trigger("error", xhr.responseText);
  630. });
  631. };
  632. self.showSubmitPopup = function () {
  633. // If self.workflow.id() == null, need to save wf for now
  634. $.get("/oozie/editor/workflow/submit/" + self.workflow.id(), {
  635. }, function (data) {
  636. $(document).trigger("showSubmitPopup", data);
  637. }).fail(function (xhr, textStatus, errorThrown) {
  638. $(document).trigger("error", xhr.responseText);
  639. });
  640. };
  641. function bareWidgetBuilder(name, type){
  642. return new Widget({
  643. size: 12,
  644. id: UUID(),
  645. name: name,
  646. widgetType: type
  647. });
  648. }
  649. self.draggableHiveAction = ko.observable(bareWidgetBuilder("Hive Script", "hive-widget"));
  650. self.draggablePigAction = ko.observable(bareWidgetBuilder("Pig Script", "pig-widget"));
  651. self.draggableJavaAction = ko.observable(bareWidgetBuilder("Java program", "java-widget"));
  652. self.draggableMapReduceAction = ko.observable(bareWidgetBuilder("MapReduce job", "mapreduce-widget"));
  653. self.draggableSubworkflowAction = ko.observable(bareWidgetBuilder("Sub workflow", "subworkflow-widget"));
  654. self.draggableStopNode = ko.observable(bareWidgetBuilder("Kill", "kill-widget"));
  655. };