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