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. 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 _forkRow = _parentCol.addEmptyRow(false, _rowIdx);
  322. var _id = UUID();
  323. var _fork = new Widget({
  324. size: 12,
  325. id: _id,
  326. name: 'fork' + '-' + _id.slice(0, 4),
  327. widgetType: "fork-widget",
  328. properties: {},
  329. offset: 0,
  330. loading: true,
  331. vm: self
  332. });
  333. _forkRow.widgets([_fork]);
  334. var _w = new Widget({
  335. size: self.currentlyDraggedWidget.size(),
  336. id: UUID(),
  337. name: self.currentlyDraggedWidget.name(),
  338. widgetType: self.currentlyDraggedWidget.widgetType(),
  339. properties: self.currentlyDraggedWidget.properties(),
  340. offset: self.currentlyDraggedWidget.offset(),
  341. loading: true,
  342. vm: self
  343. });
  344. var _col = row.addEmptyColumn(atBeginning);
  345. var _row = new Row([_w], self);
  346. _col.addRow(_row);
  347. var _joinRow = _parentCol.addEmptyRow(false, _rowIdx + 2);
  348. var _id = UUID();
  349. var _join = new Widget({
  350. size: 12,
  351. id: _id,
  352. name: "join" + '-' + _id.slice(0, 4),
  353. widgetType: "join-widget",
  354. properties: {},
  355. offset: 0,
  356. loading: true,
  357. vm: self
  358. });
  359. _joinRow.widgets([_join]);
  360. self.currentlyDraggedWidget = null;
  361. self.currentlyCreatingFork = true;
  362. self.currentlyCreatedFork = ko.mapping.toJS(_fork);
  363. self.currentlyCreatedJoin = ko.mapping.toJS(_join);
  364. linkWidgets(_fork.id(), _w.id());
  365. linkWidgets(_w.id(), _join.id());
  366. return _w;
  367. }
  368. }
  369. self.getWidgetById = function (widget_id) {
  370. var _widget = null;
  371. $.each(self.columns(), function (i, col) {
  372. $.each(col.rows(), function (j, row) {
  373. $.each(row.widgets(), function (z, widget) {
  374. if (widget.id() == widget_id){
  375. _widget = widget;
  376. return false;
  377. }
  378. });
  379. });
  380. });
  381. return _widget;
  382. }
  383. self.removeWidget = function (widget_json) {
  384. self.workflow.removeNode(widget_json.id());
  385. self.removeWidgetById(widget_json.id());
  386. }
  387. self.removeWidgetById = function (widget_id) {
  388. $.each(self.columns(), function (i, col) {
  389. self.deeplyRemoveWidgetById(widget_id, col, self)
  390. });
  391. }
  392. self.deeplyRemoveWidgetById = function (widget_id, col, parent) {
  393. if (col) {
  394. $.each(col.rows(), function (j, row) {
  395. if (row && row.widgets()){
  396. $.each(row.widgets(), function (z, widget) {
  397. if (widget.id() == widget_id) {
  398. row.widgets.remove(widget);
  399. col.rows.remove(row);
  400. }
  401. });
  402. }
  403. if (row && row.columns()) {
  404. $.each(row.columns(), function (i, icol) {
  405. self.deeplyRemoveWidgetById(widget_id, icol, row);
  406. });
  407. }
  408. });
  409. if (col.rows().length == 0) {
  410. parent.columns.remove(col);
  411. if (parent.columns().length > 1) {
  412. var _size = Math.max(1, Math.floor(12 / (parent.columns().length)));
  413. parent.columns().forEach(function (icol) {
  414. icol.size(_size);
  415. });
  416. }
  417. else {
  418. var _rows = parent.columns()[0].rows();
  419. var _parentRows = self.getRowParentColumn(parent.id()).rows;
  420. var _prevRowIdx = -1;
  421. for (var i = 0; i < _parentRows().length; i++) {
  422. if (_parentRows()[i].id() == parent.id()) {
  423. break;
  424. }
  425. _prevRowIdx = i;
  426. }
  427. if (_prevRowIdx > -1 && _parentRows()[_prevRowIdx].widgets().length > 0 && _parentRows()[_prevRowIdx].widgets()[0].widgetType() == "fork-widget"){
  428. _parentRows.remove(_parentRows()[_prevRowIdx]);
  429. _parentRows.remove(_parentRows()[_prevRowIdx+1]);
  430. }
  431. for (var i=0;i<_rows.length;i++){
  432. if (i==0){
  433. parent.widgets(_rows[i].widgets());
  434. }
  435. else {
  436. _parentRows.push(_rows[i]);
  437. }
  438. }
  439. parent.columns([]);
  440. }
  441. }
  442. }
  443. }
  444. self.getWidgetPredecessor = function (widget_id) {
  445. var _row = self.getWidgetParentRow(widget_id);
  446. var _col = self.getRowParentColumn(_row.id());
  447. var _prevRow = null;
  448. for (var i = 0; i < _col.rows().length; i++) {
  449. if (_col.rows()[i].id() == _row.id()) {
  450. break;
  451. }
  452. _prevRow = _col.rows()[i];
  453. }
  454. if (_prevRow != null) {
  455. return _prevRow.widgets()[0];
  456. }
  457. else {
  458. var _parentRow = self.getColumnParentRow(_col.id());
  459. var _parentColumn = self.getRowParentColumn(_parentRow.id());
  460. var _prevParentRow = null;
  461. for (var i = 0; i < _parentColumn.rows().length; i++) {
  462. if (_parentColumn.rows()[i].id() == _parentRow.id()) {
  463. break;
  464. }
  465. _prevParentRow = _parentColumn.rows()[i];
  466. }
  467. if (_prevParentRow != null) {
  468. return _prevParentRow.widgets()[0];
  469. }
  470. }
  471. return null;
  472. }
  473. self.getWidgetParentRow = function (widget_id) {
  474. var _row = null;
  475. for (var i = 0; i < self.columns().length; i++) {
  476. _row = self.traverseColumnForWidget(widget_id, self.columns()[i]);
  477. if (_row != null) {
  478. break;
  479. }
  480. }
  481. return _row;
  482. }
  483. self.getRowParentColumn = function (row_id) {
  484. var _column = null;
  485. for (var i = 0; i < self.columns().length; i++) {
  486. _column = self.traverseColumnForColumn(row_id, self.columns()[i]);
  487. }
  488. return _column;
  489. }
  490. self.getColumnParentRow = function (col_id) {
  491. var _row = null;
  492. for (var i = 0; i < self.columns().length; i++) {
  493. _row = self.traverseColumnForRow(col_id, self.columns()[i]);
  494. if (_row != null) {
  495. break;
  496. }
  497. }
  498. return _row;
  499. }
  500. self.getRowParentRow = function (row_id) {
  501. var _col = self.getRowParentColumn(row_id);
  502. if (_col != null) {
  503. return self.getColumnParentRow(_col.id());
  504. }
  505. }
  506. self.traverseColumnForColumn = function (row_id, col) {
  507. var _column = null;
  508. if (col) {
  509. for (var j = 0; j < col.rows().length; j++) {
  510. var row = col.rows()[j];
  511. if (row.id() == row_id) {
  512. _column = col;
  513. break;
  514. }
  515. for (var z = 0; z < row.columns().length; z++) {
  516. _column = self.traverseColumnForColumn(row_id, row.columns()[z]);
  517. if (_column != null) {
  518. break;
  519. }
  520. }
  521. }
  522. }
  523. return _column;
  524. }
  525. self.traverseColumnForRow = function (col_id, col) {
  526. var _row = null;
  527. if (col) {
  528. for (var j = 0; j < col.rows().length; j++) {
  529. var row = col.rows()[j];
  530. for (var z = 0; z < row.columns().length; z++) {
  531. var _col = row.columns()[z];
  532. if (_col.id() == col_id) {
  533. _row = row;
  534. }
  535. else {
  536. _row = self.traverseColumnForRow(col_id, _col);
  537. }
  538. if (_row != null) {
  539. break;
  540. }
  541. }
  542. }
  543. }
  544. return _row;
  545. }
  546. self.traverseColumnForWidget = function (widget_id, col) {
  547. var _row = null;
  548. if (col) {
  549. for (var j = 0; j < col.rows().length; j++) {
  550. var row = col.rows()[j];
  551. for (var z = 0; z < row.widgets().length; z++) {
  552. var widget = row.widgets()[z];
  553. if (widget.id() == widget_id) {
  554. _row = row;
  555. break;
  556. }
  557. }
  558. for (var z = 0; z < row.columns().length; z++) {
  559. _row = self.traverseColumnForWidget(widget_id, row.columns()[z]);
  560. if (_row != null) {
  561. break;
  562. }
  563. }
  564. }
  565. }
  566. return _row;
  567. }
  568. self.save = function () {
  569. $.post("/oozie/editor/workflow/save/", {
  570. "layout": ko.mapping.toJSON(self.columns),
  571. "workflow": ko.mapping.toJSON(self.workflow)
  572. }, function (data) {
  573. if (data.status == 0) {
  574. self.workflow.id(data.id);
  575. $(document).trigger("info", data.message);
  576. if (window.location.search.indexOf("workflow") == -1) {
  577. window.location.hash = '#workflow=' + data.id;
  578. }
  579. }
  580. else {
  581. $(document).trigger("error", data.message);
  582. }
  583. }).fail(function (xhr, textStatus, errorThrown) {
  584. $(document).trigger("error", xhr.responseText);
  585. });
  586. };
  587. self.gen_xml = function () {
  588. $.post("/oozie/editor/workflow/gen_xml/", {
  589. "layout": ko.mapping.toJSON(self.columns),
  590. "workflow": ko.mapping.toJSON(self.workflow)
  591. }, function (data) {
  592. if (data.status == 0) {
  593. alert(data.xml);
  594. }
  595. else {
  596. $(document).trigger("error", data.message);
  597. }
  598. }).fail(function (xhr, textStatus, errorThrown) {
  599. $(document).trigger("error", xhr.responseText);
  600. });
  601. };
  602. self.showSubmitPopup = function () {
  603. // If self.workflow.id() == null, need to save wf for now
  604. $.get("/oozie/editor/workflow/submit/" + self.workflow.id(), {
  605. }, function (data) {
  606. $(document).trigger("showSubmitPopup", data);
  607. }).fail(function (xhr, textStatus, errorThrown) {
  608. $(document).trigger("error", xhr.responseText);
  609. });
  610. };
  611. function bareWidgetBuilder(name, type){
  612. return new Widget({
  613. size: 12,
  614. id: UUID(),
  615. name: name,
  616. widgetType: type
  617. });
  618. }
  619. self.draggableHiveAction = ko.observable(bareWidgetBuilder("Hive Script", "hive-widget"));
  620. self.draggablePigAction = ko.observable(bareWidgetBuilder("Pig Script", "pig-widget"));
  621. self.draggableJavaAction = ko.observable(bareWidgetBuilder("Java program", "java-widget"));
  622. self.draggableMapReduceAction = ko.observable(bareWidgetBuilder("MapReduce job", "mapreduce-widget"));
  623. self.draggableSubworkflowAction = ko.observable(bareWidgetBuilder("Sub workflow", "subworkflow-widget"));
  624. self.draggableStopNode = ko.observable(bareWidgetBuilder("Kill", "kill-widget"));
  625. };