workflow.js 63 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. // adding missing .filter for IE8
  17. if (!('filter' in Array.prototype)) {
  18. Array.prototype.filter= function(filter, that /*opt*/) {
  19. var other= [], v;
  20. for (var i=0, n= this.length; i<n; i++)
  21. if (i in this && filter.call(that, v= this[i], i, this))
  22. other.push(v);
  23. return other;
  24. };
  25. }
  26. // Since knockout maps arrays without calling "update" nor "create"
  27. // Provide a JSON string that will be parsed in custom 'create' and 'update' functions.
  28. var normalize_model_fields = (function() {
  29. var FIELDS = ['parameters', 'job_properties', 'files', 'archives', 'prepares', 'params',
  30. 'deletes', 'mkdirs', 'moves', 'chmods', 'touchzs'];
  31. function fn(node_model) {
  32. $.each(FIELDS, function(index, field) {
  33. if (field in node_model && $.isArray(node_model[field])) {
  34. node_model[field] = JSON.stringify(node_model[field]);
  35. }
  36. });
  37. }
  38. return fn;
  39. })();
  40. // Parse JSON if it is JSON and appropriately map.
  41. // Apply subscriber to each mapping.
  42. var map_params = function(options, subscribe) {
  43. options.data = ($.type(options.data) == "string") ? $.parseJSON(options.data) : options.data;
  44. if ($.isArray(options.data)) {
  45. var mapping = ko.mapping.fromJS(options.data);
  46. $.each(mapping(), function(index, value) {
  47. subscribe(value);
  48. });
  49. return mapping;
  50. } else {
  51. var mapping = ko.mapping.fromJS(options.data, {});
  52. subscribe(mapping);
  53. return mapping;
  54. }
  55. };
  56. /**
  57. * Registry of models
  58. * - Each model should have an ID attribute.
  59. */
  60. var RegistryModule = function($) {
  61. var module = function() {
  62. var self = this;
  63. self.nodes = {};
  64. module.prototype.initialize.apply(self, arguments);
  65. return self;
  66. };
  67. $.extend(module.prototype, {
  68. // Normal stuff
  69. initialize: function() {},
  70. toString: function() {
  71. var self = this;
  72. var s = $.map(self.nodes, function(node) {
  73. return node.id();
  74. }).join();
  75. return s;
  76. },
  77. add: function(id, node) {
  78. var self = this;
  79. $(self).trigger('registry:add');
  80. self.nodes[String(id)] = node;
  81. },
  82. remove: function(id) {
  83. var self = this;
  84. $(self).trigger('registry:remove');
  85. delete self.nodes[String(id)];
  86. },
  87. get: function(id) {
  88. var self = this;
  89. return self.nodes[id];
  90. },
  91. clear: function() {
  92. var self = this;
  93. delete self.nodes;
  94. self.nodes = {};
  95. }
  96. });
  97. return module;
  98. };
  99. var Registry = RegistryModule($);
  100. /**
  101. * Modal Control
  102. * Displays a single node in a modal window of your choosing.
  103. * Make sure to update the 'context' member and 'template' members.
  104. * IMPORTANT: Use 'setTemplate', then 'show'.
  105. */
  106. var ModalModule = function($, ko) {
  107. var module = function(modal, template) {
  108. var self = this;
  109. self.el = self.modal = $(modal);
  110. self.context = ko.observable();
  111. self.template = ko.observable(template || '');
  112. self.bound = false;
  113. // exit with escape key.
  114. $(window).on('keyup', function(e) {
  115. if (e.keyCode == 27) {
  116. $('.modal-backdrop').click();
  117. }
  118. });
  119. };
  120. module.prototype.show = function(context) {
  121. var self = this;
  122. if (context) {
  123. self.context(context);
  124. }
  125. ko.applyBindings(self, self.modal[0]);
  126. self.modal.modal('show');
  127. };
  128. module.prototype.hide = function() {
  129. var self = this;
  130. self.el.modal('hide');
  131. };
  132. module.prototype.setTemplate = function(template) {
  133. var self = this;
  134. ko.cleanNode(self.modal[0]);
  135. self.template( template );
  136. };
  137. module.prototype.recenter = function(offset_x, offset_y) {
  138. var self = this;
  139. var MARGIN = 10; // pixels around the modal
  140. var modalContentHeight = (($(window).height() - MARGIN*2) -
  141. (self.modal.find(".modal-header").outerHeight() + self.modal.find(".modal-header").outerHeight())) - 20;
  142. self.modal.css("width", ($(window).width() - MARGIN*2)+"px");
  143. self.modal.find(".modal-content").css("max-height", modalContentHeight+"px").css("height", modalContentHeight+"px");
  144. var top = ( ($(window).height() - self.modal.outerHeight(false)) / 2 );
  145. var left = ( ($(window).width() - self.modal.outerWidth(false)) / 2 );
  146. if (top < 0) {
  147. top = 0;
  148. }
  149. if (left < 0) {
  150. left = 0;
  151. }
  152. top += offset_y || 0;
  153. left += offset_x || 0;
  154. self.modal.css({top: top +'px', left: left+'px'});
  155. };
  156. module.prototype.addDecorations = function () {
  157. $(".popover").remove();
  158. $("input[name='job_xml']:not(.pathChooser)").addClass("pathChooser").after(getFileBrowseButton($("input[name='job_xml']:not(.pathChooser)")));
  159. $("input[name='jar_path']").addClass("pathChooser").after(getFileBrowseButton($("input[name='jar_path']")));
  160. $("input[name='script_path']").addClass("pathChooser").after(getFileBrowseButton($("input[name='script_path']")));
  161. $("input[name='command']").addClass("pathChooser").after(getFileBrowseButton($("input[name='command']")));
  162. if (typeof CodeMirror !== 'undefined' && $("textarea[name='xml']").length > 0) {
  163. $("textarea[name='xml']").hide();
  164. var xmlEditor = $("<textarea>").attr("id", "tempXml").prependTo($("textarea[name='xml']").parent())[0];
  165. var codeMirror = CodeMirror(function (elt) {
  166. xmlEditor.parentNode.replaceChild(elt, xmlEditor);
  167. }, {
  168. value:$("textarea[name='xml']").val(),
  169. lineNumbers:true,
  170. autoCloseTags:true
  171. });
  172. codeMirror.on("update", function () {
  173. ko.dataFor($("textarea[name='xml']")[0]).xml(codeMirror.getValue());
  174. });
  175. }
  176. $("*[rel=popover]").each(function(){
  177. if ($(this).find("input").length > 0){
  178. $(this).popover({
  179. placement:'right',
  180. trigger:'hover',
  181. selector: 'input'
  182. });
  183. }
  184. else {
  185. $(this).popover({
  186. placement:'right',
  187. trigger:'hover'
  188. });
  189. }
  190. });
  191. $(".propKey").typeahead({
  192. source:(typeof AUTOCOMPLETE_PROPERTIES != 'undefined') ? AUTOCOMPLETE_PROPERTIES : []
  193. });
  194. }
  195. return module;
  196. };
  197. var Modal = ModalModule($, ko);
  198. var ModelModule = function($) {
  199. var module = function(attrs) {
  200. var self = this;
  201. $.extend(self, attrs);
  202. module.prototype.initialize.apply(self, arguments);
  203. return self;
  204. };
  205. $.extend(module.prototype, {
  206. // Normal stuff
  207. initialize: function(){},
  208. toString: function() {
  209. var self = this;
  210. return JSON.stringify(self, null, '\t');
  211. }
  212. });
  213. return module;
  214. };
  215. var WorkflowModel = ModelModule($);
  216. $.extend(WorkflowModel.prototype, {
  217. id: 0,
  218. name: '',
  219. description: '',
  220. start: 0,
  221. end: 0,
  222. schema_version: 0.4,
  223. deployment_dir: '',
  224. is_shared: true,
  225. parameters: '[]',
  226. job_xml: ''
  227. });
  228. var NodeModel = ModelModule($);
  229. $.extend(NodeModel.prototype, {
  230. id: 0,
  231. name: '',
  232. description: '',
  233. node_type: '',
  234. workflow: 0,
  235. child_links: []
  236. });
  237. var ForkModel = ModelModule($);
  238. $.extend(ForkModel.prototype, {
  239. id: 0,
  240. name: '',
  241. description: '',
  242. node_type: 'fork',
  243. workflow: 0,
  244. child_links: []
  245. });
  246. var DecisionModel = ModelModule($);
  247. $.extend(DecisionModel.prototype, {
  248. id: 0,
  249. name: '',
  250. description: '',
  251. node_type: 'decision',
  252. workflow: 0,
  253. child_links: []
  254. });
  255. var DistCPModel = ModelModule($);
  256. $.extend(DistCPModel.prototype, {
  257. id: 0,
  258. name: '',
  259. description: '',
  260. node_type: 'distcp',
  261. workflow: 0,
  262. job_properties: '[]',
  263. prepares: '[]',
  264. job_xml: '',
  265. params: '[]',
  266. child_links: []
  267. });
  268. var MapReduceModel = ModelModule($);
  269. $.extend(MapReduceModel.prototype, {
  270. id: 0,
  271. name: '',
  272. description: '',
  273. node_type: 'mapreduce',
  274. workflow: 0,
  275. files: '[]',
  276. archives: '[]',
  277. job_properties: '[]',
  278. jar_path: '',
  279. prepares: '[]',
  280. job_xml: '',
  281. child_links: []
  282. });
  283. var StreamingModel = ModelModule($);
  284. $.extend(StreamingModel.prototype, {
  285. id: 0,
  286. name: '',
  287. description: '',
  288. node_type: 'streaming',
  289. workflow: 0,
  290. files: '[]',
  291. archives: '[]',
  292. job_properties: '[]',
  293. mapper: '',
  294. reducer: '',
  295. child_links: []
  296. });
  297. var JavaModel = ModelModule($);
  298. $.extend(JavaModel.prototype, {
  299. id: 0,
  300. name: '',
  301. description: '',
  302. node_type: 'java',
  303. workflow: 0,
  304. files: '[]',
  305. archives: '[]',
  306. job_properties: '[]',
  307. jar_path: '',
  308. prepares: '[]',
  309. job_xml: '',
  310. main_class: '',
  311. args: '',
  312. java_opts: '',
  313. child_links: []
  314. });
  315. var PigModel = ModelModule($);
  316. $.extend(PigModel.prototype, {
  317. id: 0,
  318. name: '',
  319. description: '',
  320. node_type: 'pig',
  321. workflow: 0,
  322. files: '[]',
  323. archives: '[]',
  324. job_properties: '[]',
  325. prepares: '[]',
  326. job_xml: '',
  327. params: '[]',
  328. script_path: '',
  329. child_links: []
  330. });
  331. var HiveModel = ModelModule($);
  332. $.extend(HiveModel.prototype, {
  333. id: 0,
  334. name: '',
  335. description: '',
  336. node_type: 'hive',
  337. workflow: 0,
  338. files: '[]',
  339. archives: '[]',
  340. job_properties: '[]',
  341. prepares: '[]',
  342. job_xml: '',
  343. params: '[]',
  344. script_path: '',
  345. child_links: []
  346. });
  347. var SqoopModel = ModelModule($);
  348. $.extend(SqoopModel.prototype, {
  349. id: 0,
  350. name: '',
  351. description: '',
  352. node_type: 'sqoop',
  353. workflow: 0,
  354. files: '[]',
  355. archives: '[]',
  356. job_properties: '[]',
  357. prepares: '[]',
  358. job_xml: '',
  359. params: '[]',
  360. script_path: '',
  361. child_links: []
  362. });
  363. var ShellModel = ModelModule($);
  364. $.extend(ShellModel.prototype, {
  365. id: 0,
  366. name: '',
  367. description: '',
  368. node_type: 'shell',
  369. workflow: 0,
  370. files: '[]',
  371. archives: '[]',
  372. job_properties: '[]',
  373. prepares: '[]',
  374. job_xml: '',
  375. params: '[]',
  376. command: '',
  377. capture_output: false,
  378. child_links: []
  379. });
  380. var SshModel = ModelModule($);
  381. $.extend(SshModel.prototype, {
  382. id: 0,
  383. name: '',
  384. description: '',
  385. node_type: 'ssh',
  386. workflow: 0,
  387. user: '',
  388. host: '',
  389. params: '[]',
  390. command: '',
  391. capture_output: false,
  392. child_links: []
  393. });
  394. var FsModel = ModelModule($);
  395. $.extend(FsModel.prototype, {
  396. id: 0,
  397. name: '',
  398. description: '',
  399. node_type: 'fs',
  400. workflow: 0,
  401. deletes: '[]',
  402. mkdirs: '[]',
  403. moves: '[]',
  404. chmods: '[]',
  405. touchzs: '[]',
  406. child_links: []
  407. });
  408. var EmailModel = ModelModule($);
  409. $.extend(EmailModel.prototype, {
  410. id: 0,
  411. name: '',
  412. description: '',
  413. node_type: 'email',
  414. workflow: 0,
  415. to: '',
  416. cc: '',
  417. subject: '',
  418. body: '',
  419. child_links: []
  420. });
  421. var SubWorkflowModel = ModelModule($);
  422. $.extend(SubWorkflowModel.prototype, {
  423. id: 0,
  424. name: '',
  425. description: '',
  426. node_type: 'subworkflow',
  427. workflow: 0,
  428. sub_workflow: 0,
  429. propagate_configuration: true,
  430. job_properties: '[]',
  431. child_links: []
  432. });
  433. var GenericModel = ModelModule($);
  434. $.extend(GenericModel.prototype, {
  435. id: 0,
  436. name: '',
  437. description: '',
  438. node_type: 'generic',
  439. workflow: 0,
  440. xml: '',
  441. child_links: []
  442. });
  443. function nodeModelChooser(node_type) {
  444. switch(node_type) {
  445. case 'mapreduce':
  446. return MapReduceModel;
  447. case 'streaming':
  448. return StreamingModel;
  449. case 'java':
  450. return JavaModel;
  451. case 'pig':
  452. return PigModel;
  453. case 'hive':
  454. return HiveModel;
  455. case 'sqoop':
  456. return SqoopModel;
  457. case 'shell':
  458. return ShellModel;
  459. case 'ssh':
  460. return SshModel;
  461. case 'distcp':
  462. return DistCPModel;
  463. case 'fs':
  464. return FsModel;
  465. case 'email':
  466. return EmailModel;
  467. case 'subworkflow':
  468. return SubWorkflowModel;
  469. case 'generic':
  470. return GenericModel;
  471. case 'fork':
  472. return ForkModel;
  473. case 'decision':
  474. return DecisionModel;
  475. default:
  476. return NodeModel;
  477. }
  478. }
  479. /**
  480. * Import node module
  481. * Assists in the conversion of a jobsub node.
  482. * Assists in the population of available nodes.
  483. */
  484. var ImportNodeModule = function($) {
  485. var module = function(options) {
  486. var self = this;
  487. self.workflow = options.workflow;
  488. self.available_nodes = [];
  489. self.url = ko.computed(function() {
  490. return '/oozie/workflows/' + options.workflow.id() + '/jobsub/actions'
  491. });
  492. module.prototype.initialize.apply(self, arguments);
  493. return self;
  494. };
  495. $.extend(module.prototype, {
  496. initialize: function(options) {
  497. var self = this;
  498. if (options.nodes) {
  499. $.each(options.nodes, function(index, node) {
  500. self.available_nodes.push(node);
  501. });
  502. }
  503. },
  504. getAvailableNodes: function() {
  505. var self = this;
  506. return self.available_nodes;
  507. },
  508. loadAvailableNodes: function(options) {
  509. var self = this;
  510. var request = $.extend({
  511. url: self.url(),
  512. dataType: 'json',
  513. type: 'GET',
  514. success: $.noop,
  515. error: $.noop
  516. }, options || {});
  517. $.ajax(request);
  518. },
  519. convertNode: function(options, jobsub_id) {
  520. var self = this;
  521. var options = options || {};
  522. var request = $.extend({
  523. url: self.url(),
  524. type: 'POST',
  525. data: { 'jobsub_id': jobsub_id },
  526. success: $.noop,
  527. error: $.noop
  528. }, options);
  529. $.ajax(request);
  530. }
  531. });
  532. return module;
  533. };
  534. var ImportNode = ImportNodeModule($);
  535. /**
  536. * ID Generator
  537. * Generate a new ID starting from 1.
  538. * - Accepts a prefix that will be prepended like so: <prefix>:<id number>
  539. */
  540. var IdGeneratorModule = function($) {
  541. return function(options) {
  542. var self = this;
  543. $.extend(self, options);
  544. self.counter = 1;
  545. self.nextId = function() {
  546. return ((self.prefix) ? self.prefix + ':' : '') + self.counter++;
  547. };
  548. };
  549. };
  550. var IdGenerator = IdGeneratorModule($);
  551. var IdGeneratorTable = {
  552. mapreduce: new IdGenerator({prefix: 'mapreduce'}),
  553. streaming: new IdGenerator({prefix: 'streaming'}),
  554. java: new IdGenerator({prefix: 'java'}),
  555. pig: new IdGenerator({prefix: 'pig'}),
  556. hive: new IdGenerator({prefix: 'hive'}),
  557. sqoop: new IdGenerator({prefix: 'sqoop'}),
  558. shell: new IdGenerator({prefix: 'shell'}),
  559. ssh: new IdGenerator({prefix: 'ssh'}),
  560. distcp: new IdGenerator({prefix: 'distcp'}),
  561. fs: new IdGenerator({prefix: 'fs'}),
  562. email: new IdGenerator({prefix: 'email'}),
  563. subworkflow: new IdGenerator({prefix: 'subworkflow'}),
  564. generic: new IdGenerator({prefix: 'generic'}),
  565. fork: new IdGenerator({prefix: 'fork'}),
  566. decision: new IdGenerator({prefix: 'decision'}),
  567. join: new IdGenerator({prefix: 'join'}),
  568. decisionend: new IdGenerator({prefix: 'decisionend'}),
  569. kill: new IdGenerator({prefix: 'kill'})
  570. };
  571. var NodeModule = function($, IdGeneratorTable) {
  572. var META_LINKS = ['related', 'default', 'error'];
  573. var linkTypeChooser = function(parent, child) {
  574. if (child.node_type() == 'kill') {
  575. return 'error';
  576. }
  577. switch(parent.node_type()) {
  578. case 'start':
  579. return (child.node_type() == 'end') ? 'related' : 'to';
  580. case 'fork':
  581. return (child.node_type() == 'join') ? 'related' : 'start';
  582. case 'decision':
  583. return (child.node_type() == 'decisionend') ? 'related' : 'start';
  584. case 'join':
  585. case 'decisionend':
  586. return 'to';
  587. default:
  588. return 'ok';
  589. };
  590. };
  591. var module = function(workflow, model, registry) {
  592. var self = this;
  593. self.map(model);
  594. self.links = ko.computed(function() {
  595. var links = self.child_links().filter(function(element, index, arr) {
  596. return $.inArray(element.name(), META_LINKS) == -1;
  597. });
  598. return links;
  599. });
  600. self.meta_links = ko.computed(function() {
  601. var links = self.child_links().filter(function(element, index, arr) {
  602. return $.inArray(element.name(), META_LINKS) != -1;
  603. });
  604. return links;
  605. });
  606. self._workflow = workflow;
  607. self.registry = registry;
  608. self.children = ko.observableArray([]);
  609. self.model = model;
  610. var errors = {};
  611. for(var key in model) {
  612. switch(key) {
  613. case 'child_links':
  614. case 'node_ptr':
  615. case 'initialize':
  616. case 'toString':
  617. break;
  618. default:
  619. errors[key] = [];
  620. break;
  621. }
  622. }
  623. self.errors = ko.mapping.fromJS(errors);
  624. self.edit_template = model.node_type + 'EditTemplate';
  625. switch(model.node_type) {
  626. case 'start':
  627. self.view_template = ko.observable('startTemplate');
  628. break;
  629. case 'kill':
  630. case 'end':
  631. self.view_template = ko.observable('emptyTemplate');
  632. break;
  633. case 'fork':
  634. self.view_template = ko.observable('forkTemplate');
  635. break;
  636. case 'join':
  637. self.view_template = ko.observable('joinTemplate');
  638. break;
  639. case 'decision':
  640. self.view_template = ko.observable('decisionTemplate');
  641. break;
  642. case 'decisionend':
  643. self.view_template = ko.observable('decisionEndTemplate');
  644. break;
  645. default:
  646. self.view_template = ko.observable('nodeTemplate');
  647. break;
  648. }
  649. // Data manipulation
  650. if ('job_properties' in model) {
  651. self.addProp = function() {
  652. var prop = { name: ko.observable(""), value: ko.observable("") };
  653. prop.name.subscribe(function(value) {
  654. self.job_properties.valueHasMutated();
  655. });
  656. prop.value.subscribe(function(value) {
  657. self.job_properties.valueHasMutated();
  658. });
  659. self.job_properties.push(prop);
  660. $(".propKey:last").typeahead({
  661. source:(typeof AUTOCOMPLETE_PROPERTIES != 'undefined') ? AUTOCOMPLETE_PROPERTIES : []
  662. });
  663. };
  664. self.removeProp = function(val) {
  665. self.job_properties.remove(val);
  666. };
  667. }
  668. if ('files' in model) {
  669. self.addFile = function() {
  670. var prop = { name: ko.observable(""), dummy: ko.observable("") };
  671. prop.name.subscribe(function(value) {
  672. self.files.valueHasMutated();
  673. });
  674. prop.dummy.subscribe(function(value) {
  675. self.files.valueHasMutated();
  676. });
  677. self.files.push(prop);
  678. };
  679. self.removeFile = function(val) {
  680. self.files.remove(val);
  681. };
  682. }
  683. if ('archives' in model) {
  684. self.addArchive = function() {
  685. var prop = { name: ko.observable(""), dummy: ko.observable("") };
  686. prop.name.subscribe(function(value) {
  687. self.archives.valueHasMutated();
  688. });
  689. prop.dummy.subscribe(function(value) {
  690. self.archives.valueHasMutated();
  691. });
  692. self.archives.push(prop);
  693. };
  694. self.removeArchive = function(val) {
  695. self.archives.remove(val);
  696. };
  697. }
  698. if ('params' in model) {
  699. self.addParam = function() {
  700. var prop = { value: ko.observable(""), type: ko.observable("param") };
  701. prop.value.subscribe(function(value) {
  702. self.params.valueHasMutated();
  703. });
  704. prop.type.subscribe(function(value) {
  705. self.params.valueHasMutated();
  706. });
  707. self.params.push(prop);
  708. };
  709. self.addArgument = function() {
  710. var prop = { value: ko.observable(""), type: ko.observable("argument") };
  711. prop.value.subscribe(function(value) {
  712. self.params.valueHasMutated();
  713. });
  714. prop.type.subscribe(function(value) {
  715. self.params.valueHasMutated();
  716. });
  717. self.params.push(prop);
  718. };
  719. self.addArg = function() {
  720. var prop = { value: ko.observable(""), type: ko.observable("arg") };
  721. prop.value.subscribe(function(value) {
  722. self.params.valueHasMutated();
  723. });
  724. prop.type.subscribe(function(value) {
  725. self.params.valueHasMutated();
  726. });
  727. self.params.push(prop);
  728. };
  729. self.addEnvVar = function() {
  730. var prop = { value: ko.observable(""), type: ko.observable("env-var") };
  731. prop.value.subscribe(function(value) {
  732. self.params.valueHasMutated();
  733. });
  734. prop.type.subscribe(function(value) {
  735. self.params.valueHasMutated();
  736. });
  737. self.params.push(prop);
  738. };
  739. self.removeParam = function(val) {
  740. self.params.remove(val);
  741. };
  742. }
  743. if ('prepares' in model) {
  744. self.addPrepareDelete = function() {
  745. var prop = { value: ko.observable(""), type: ko.observable("delete") };
  746. prop.value.subscribe(function(value) {
  747. self.prepares.valueHasMutated();
  748. });
  749. prop.type.subscribe(function(value) {
  750. self.prepares.valueHasMutated();
  751. });
  752. self.prepares.push(prop);
  753. };
  754. self.addPrepareMkdir = function() {
  755. var prop = { value: ko.observable(""), type: ko.observable("mkdir") };
  756. prop.value.subscribe(function(value) {
  757. self.prepares.valueHasMutated();
  758. });
  759. prop.type.subscribe(function(value) {
  760. self.prepares.valueHasMutated();
  761. });
  762. self.prepares.push(prop);
  763. };
  764. self.removePrepare = function(val) {
  765. self.prepares.remove(val);
  766. };
  767. }
  768. if ('deletes' in model) {
  769. self.addDelete = function() {
  770. var prop = { name: ko.observable("") };
  771. prop.name.subscribe(function(value) {
  772. self.deletes.valueHasMutated();
  773. });
  774. self.deletes.push(prop);
  775. };
  776. self.removeDelete = function(val) {
  777. self.deletes.remove(val);
  778. };
  779. }
  780. if ('mkdirs' in model) {
  781. self.addMkdir = function() {
  782. var prop = { name: ko.observable("") };
  783. prop.name.subscribe(function(value) {
  784. self.mkdirs.valueHasMutated();
  785. });
  786. self.mkdirs.push(prop);
  787. };
  788. self.removeMkdir = function(val) {
  789. self.mkdirs.remove(val);
  790. };
  791. }
  792. if ('moves' in model) {
  793. self.addMove = function() {
  794. var prop = { source: ko.observable(""), destination: ko.observable("") };
  795. prop.source.subscribe(function(value) {
  796. self.moves.valueHasMutated();
  797. });
  798. prop.destination.subscribe(function(value) {
  799. self.moves.valueHasMutated();
  800. });
  801. self.moves.push(prop);
  802. };
  803. self.removeMove = function(val) {
  804. self.moves.remove(val);
  805. };
  806. }
  807. if ('chmods' in model) {
  808. self.addChmod = function() {
  809. var prop = { path: ko.observable(""), permissions: ko.observable(""), recursive: ko.observable("") };
  810. prop.path.subscribe(function(value) {
  811. self.chmods.valueHasMutated();
  812. });
  813. prop.permissions.subscribe(function(value) {
  814. self.chmods.valueHasMutated();
  815. });
  816. prop.recursive.subscribe(function(value) {
  817. self.chmods.valueHasMutated();
  818. });
  819. self.chmods.push(prop);
  820. };
  821. self.removeChmod = function(val) {
  822. self.chmods.remove(val);
  823. };
  824. }
  825. if ('touchzs' in model) {
  826. self.addTouchz = function() {
  827. var prop = { name: ko.observable("") };
  828. prop.name.subscribe(function(value) {
  829. self.touchzs.valueHasMutated();
  830. });
  831. self.touchzs.push(prop);
  832. };
  833. self.removeTouchz = function(val) {
  834. self.touchzs.remove(val);
  835. };
  836. }
  837. self.initialize.apply(self, arguments);
  838. return self;
  839. };
  840. $.extend(module.prototype, {
  841. // Data.
  842. children: null,
  843. model: null,
  844. // Normal stuff
  845. /**
  846. * Called when creating a new node
  847. */
  848. initialize: function(workflow, model, registry) {},
  849. toString: function() {
  850. return '';
  851. },
  852. /**
  853. * Fetches registry
  854. */
  855. getRegistry: function() {
  856. return registry;
  857. },
  858. /**
  859. * Maps a model to self
  860. * Called when creating a new node before any thing else
  861. */
  862. map: function(model) {
  863. var self = this;
  864. // @see http://knockoutjs.com/documentation/plugins-mapping.html
  865. var mapping = ko.mapping.fromJS(model, {
  866. ignore: ['initialize', 'toString'],
  867. job_properties: {
  868. create: function(options) {
  869. var parent = options.parent;
  870. var subscribe = function(mapping) {
  871. mapping.name.subscribe(function(value) {
  872. parent.job_properties.valueHasMutated();
  873. });
  874. mapping.value.subscribe(function(value) {
  875. parent.job_properties.valueHasMutated();
  876. });
  877. };
  878. return map_params(options, subscribe);
  879. },
  880. update: function(options) {
  881. var parent = options.parent;
  882. var subscribe = function(mapping) {
  883. mapping.name.subscribe(function(value) {
  884. parent.job_properties.valueHasMutated();
  885. });
  886. mapping.value.subscribe(function(value) {
  887. parent.job_properties.valueHasMutated();
  888. });
  889. };
  890. return map_params(options, subscribe);
  891. }
  892. },
  893. files: {
  894. create: function(options) {
  895. return map_params(options, function() {});
  896. },
  897. update: function(options) {
  898. return map_params(options, function() {});
  899. }
  900. },
  901. archives: {
  902. create: function(options) {
  903. var parent = options.parent;
  904. var subscribe = function(mapping) {
  905. mapping.name.subscribe(function(value) {
  906. parent.archives.valueHasMutated();
  907. });
  908. mapping.dummy.subscribe(function(value) {
  909. parent.archives.valueHasMutated();
  910. });
  911. };
  912. return map_params(options, subscribe);
  913. },
  914. update: function(options) {
  915. var parent = options.parent;
  916. var subscribe = function(mapping) {
  917. mapping.name.subscribe(function(value) {
  918. parent.archives.valueHasMutated();
  919. });
  920. mapping.dummy.subscribe(function(value) {
  921. parent.archives.valueHasMutated();
  922. });
  923. };
  924. return map_params(options, subscribe);
  925. }
  926. },
  927. params: {
  928. create: function(options) {
  929. var parent = options.parent;
  930. var subscribe = function(mapping) {
  931. mapping.value.subscribe(function(value) {
  932. parent.params.valueHasMutated();
  933. });
  934. mapping.type.subscribe(function(value) {
  935. parent.params.valueHasMutated();
  936. });
  937. };
  938. return map_params(options, subscribe);
  939. },
  940. update: function(options) {
  941. var parent = options.parent;
  942. var subscribe = function(mapping) {
  943. mapping.value.subscribe(function(value) {
  944. parent.params.valueHasMutated();
  945. });
  946. mapping.type.subscribe(function(value) {
  947. parent.params.valueHasMutated();
  948. });
  949. };
  950. return map_params(options, subscribe);
  951. }
  952. },
  953. prepares: {
  954. create: function(options) {
  955. var parent = options.parent;
  956. var subscribe = function(mapping) {
  957. mapping.value.subscribe(function(value) {
  958. parent.prepares.valueHasMutated();
  959. });
  960. mapping.type.subscribe(function(value) {
  961. parent.prepares.valueHasMutated();
  962. });
  963. };
  964. return map_params(options, subscribe);
  965. },
  966. update: function(options) {
  967. var parent = options.parent;
  968. var subscribe = function(mapping) {
  969. mapping.value.subscribe(function(value) {
  970. parent.prepares.valueHasMutated();
  971. });
  972. mapping.type.subscribe(function(value) {
  973. parent.prepares.valueHasMutated();
  974. });
  975. };
  976. return map_params(options, subscribe);
  977. }
  978. },
  979. deletes: {
  980. create: function(options) {
  981. return map_params(options, function() {});
  982. },
  983. update: function(options) {
  984. return map_params(options, function() {});
  985. }
  986. },
  987. mkdirs: {
  988. create: function(options) {
  989. return map_params(options, function() {});
  990. },
  991. update: function(options) {
  992. return map_params(options, function() {});
  993. }
  994. },
  995. moves: {
  996. create: function(options) {
  997. var parent = options.parent;
  998. var subscribe = function(mapping) {
  999. mapping.source.subscribe(function(value) {
  1000. parent.moves.valueHasMutated();
  1001. });
  1002. mapping.destination.subscribe(function(value) {
  1003. parent.moves.valueHasMutated();
  1004. });
  1005. };
  1006. return map_params(options, subscribe);
  1007. },
  1008. update: function(options) {
  1009. var parent = options.parent;
  1010. var subscribe = function(mapping) {
  1011. mapping.source.subscribe(function(value) {
  1012. parent.moves.valueHasMutated();
  1013. });
  1014. mapping.destination.subscribe(function(value) {
  1015. parent.moves.valueHasMutated();
  1016. });
  1017. };
  1018. return map_params(options, subscribe);
  1019. }
  1020. },
  1021. chmods: {
  1022. create: function(options) {
  1023. var parent = options.parent;
  1024. var subscribe = function(mapping) {
  1025. mapping.path.subscribe(function(value) {
  1026. parent.chmods.valueHasMutated();
  1027. });
  1028. mapping.permissions.subscribe(function(value) {
  1029. parent.chmods.valueHasMutated();
  1030. });
  1031. mapping.recursive.subscribe(function(value) {
  1032. parent.chmods.valueHasMutated();
  1033. });
  1034. };
  1035. return map_params(options, subscribe);
  1036. },
  1037. update: function(options) {
  1038. var parent = options.parent;
  1039. var subscribe = function(mapping) {
  1040. mapping.path.subscribe(function(value) {
  1041. parent.chmods.valueHasMutated();
  1042. });
  1043. mapping.permissions.subscribe(function(value) {
  1044. parent.chmods.valueHasMutated();
  1045. });
  1046. mapping.recursive.subscribe(function(value) {
  1047. parent.chmods.valueHasMutated();
  1048. });
  1049. };
  1050. return map_params(options, subscribe);
  1051. }
  1052. },
  1053. touchzs: {
  1054. create: function(options) {
  1055. return map_params(options, function() {});
  1056. },
  1057. update: function(options) {
  1058. return map_params(options, function() {});
  1059. }
  1060. }
  1061. });
  1062. $.extend(self, mapping);
  1063. $.each(mapping, function(key, value) {
  1064. var key = key;
  1065. if (ko.isObservable(self[key])) {
  1066. self[key].subscribe(function(value) {
  1067. model[key] = ko.mapping.toJS(value);
  1068. });
  1069. }
  1070. });
  1071. $.each(self.child_links(), function(index, link) {
  1072. var $index = index;
  1073. link.comment.subscribe(function(value) {
  1074. self.model.child_links[$index].comment = value;
  1075. });
  1076. link.child.subscribe(function(value) {
  1077. self.model.child_links[$index].child = value;
  1078. });
  1079. });
  1080. },
  1081. validate: function( ) {
  1082. var self = this;
  1083. var options = {};
  1084. data = $.extend(true, {}, self.model);
  1085. var success = false;
  1086. var request = $.extend({
  1087. url: '/oozie/workflows/' + self._workflow.id() + '/nodes/' + self.node_type() + '/validate',
  1088. type: 'POST',
  1089. data: { node: JSON.stringify(data) },
  1090. success: function(data) {
  1091. ko.mapping.fromJS(data.data, self.errors);
  1092. success = data.status == 0;
  1093. },
  1094. async: false
  1095. }, options);
  1096. $.ajax(request);
  1097. return success;
  1098. },
  1099. // Hierarchy manipulation.
  1100. /**
  1101. * Append node to self
  1102. * Does not support multiple children.
  1103. * Ensures single child.
  1104. * Ensures no cycles.
  1105. * 1. Finds all children and attaches them to node (cleans node first).
  1106. * 2. Remove all children from self.
  1107. * 3. Attach node to self.
  1108. */
  1109. append: function(node) {
  1110. var self = this;
  1111. // Not fork nor decision nor self
  1112. if ($.inArray(self.node_type(), ['fork', 'decision']) == -1 && node.id() != self.id() && !self.isChild(node)) {
  1113. node.removeAllChildren();
  1114. $.each(self.links(), function(index, link) {
  1115. node.addChild(self.registry.get(link.child()));
  1116. });
  1117. self.removeAllChildren();
  1118. self.addChild(node);
  1119. }
  1120. },
  1121. /**
  1122. * Find all parents of current node
  1123. */
  1124. findParents: function() {
  1125. var self = this;
  1126. var parents = [];
  1127. $.each(self.registry.nodes, function(id, node) {
  1128. $.each(node.links(), function(index, link) {
  1129. if (link.child() == self.id()) {
  1130. parents.push(node);
  1131. }
  1132. });
  1133. });
  1134. return parents;
  1135. },
  1136. /**
  1137. * Find all children of current node
  1138. */
  1139. findChildren: function() {
  1140. var self = this;
  1141. var children = [];
  1142. $.each(self.links(), function(index, link) {
  1143. children.push(self.registry.get(link.child()));
  1144. });
  1145. return children;
  1146. },
  1147. /**
  1148. * Detach current node from the graph
  1149. * 1. Takes children of self node, removes them from self node, and adds them to each parent of self node.
  1150. * 2. The self node is then removed from every parent.
  1151. * 3. Does not support multiple children since we do not automatically fork.
  1152. */
  1153. detach: function() {
  1154. var self = this;
  1155. $.each(self.findParents(), function(index, parent) {
  1156. $.each(self.links(), function(index, link) {
  1157. var node = self.registry.get(link.child());
  1158. parent.replaceChild(self, node);
  1159. });
  1160. });
  1161. $(self).trigger('detached');
  1162. self.removeAllChildren();
  1163. },
  1164. /**
  1165. * Add child
  1166. * Update child links for this node.
  1167. */
  1168. addChild: function(node) {
  1169. var self = this;
  1170. var link = {
  1171. parent: ko.observable(self.id()),
  1172. child: ko.observable(node.id()),
  1173. name: ko.observable(linkTypeChooser(self, node)),
  1174. comment: ko.observable('')
  1175. };
  1176. self.child_links.unshift(link);
  1177. },
  1178. /**
  1179. * Remove child node
  1180. * 1. Find child node link
  1181. * 2. Remove child node link
  1182. */
  1183. removeChild: function(node) {
  1184. var self = this;
  1185. var spliceIndex = -1;
  1186. $.each(self.child_links(), function(index, link) {
  1187. if (link.child() == node.id()) {
  1188. spliceIndex = index;
  1189. }
  1190. });
  1191. if (spliceIndex > -1) {
  1192. self.child_links.splice(spliceIndex, 1);
  1193. }
  1194. return spliceIndex != -1;
  1195. },
  1196. /**
  1197. * Remove all children
  1198. * Removes all children except for related, default, and error links
  1199. * Note: we hold on to related, default, and error links because
  1200. * we have to.
  1201. */
  1202. removeAllChildren: function() {
  1203. var self = this;
  1204. var keep_links = [];
  1205. $.each(self.child_links(), function(index, link) {
  1206. if ($.inArray(link.name(), META_LINKS) > -1) {
  1207. keep_links.push(link);
  1208. }
  1209. });
  1210. self.child_links.removeAll();
  1211. $.each(keep_links, function(index, link) {
  1212. self.child_links.push(link);
  1213. });
  1214. },
  1215. /**
  1216. * Replace child node with another node in the following way:
  1217. * 1. Find child index
  1218. * 2. Remove child index
  1219. * 3. Remove and remember every element after child
  1220. * 4. Add replacement node
  1221. * 5. Add every child that was remembered
  1222. */
  1223. replaceChild: function(child, replacement) {
  1224. var self = this;
  1225. var index = -1;
  1226. $.each(self.child_links(), function(i, link) {
  1227. if (link.child() == child.id()) {
  1228. index = i;
  1229. }
  1230. });
  1231. if (index > -1) {
  1232. self.child_links.splice(index, 1);
  1233. var links = self.child_links.splice(index);
  1234. var link = {
  1235. parent: ko.observable(self.id()),
  1236. child: ko.observable(replacement.id()),
  1237. name: ko.observable(linkTypeChooser(self, replacement)),
  1238. comment: ko.observable('')
  1239. };
  1240. self.child_links.push(link);
  1241. $.each(links, function(index, link) {
  1242. self.child_links.push(link);
  1243. });
  1244. }
  1245. return index != -1;
  1246. },
  1247. isChild: function(node) {
  1248. var self = this;
  1249. var res = false;
  1250. $.each(self.links(), function(index, link) {
  1251. if (link.child() == node.id()) {
  1252. res = true;
  1253. }
  1254. });
  1255. return res;
  1256. },
  1257. erase: function() {
  1258. var self = this;
  1259. self.registry.remove(self.id());
  1260. }
  1261. });
  1262. return module;
  1263. };
  1264. var Node = NodeModule($, IdGeneratorTable);
  1265. var StartNode = NodeModule($, IdGeneratorTable);
  1266. $.extend(StartNode.prototype, Node.prototype, {
  1267. /**
  1268. * Same as addChild for nodes, except if we reach the end,
  1269. * we add the end node to our child_links in the form of a
  1270. * 'related' link and 'start' link.
  1271. * We should always have a start link in an empty workflow!
  1272. */
  1273. replaceChild: function(child, replacement) {
  1274. var self = this;
  1275. var index = -1;
  1276. $.each(self.child_links(), function(i, link) {
  1277. if (link.child() == child.id()) {
  1278. index = i;
  1279. }
  1280. });
  1281. if (index > -1) {
  1282. self.child_links.splice(index, 1);
  1283. var links = self.child_links.splice(index);
  1284. var link = {
  1285. parent: ko.observable(self.id()),
  1286. child: ko.observable(replacement.id()),
  1287. name: ko.observable('to'),
  1288. comment: ko.observable('')
  1289. };
  1290. self.child_links.push(link);
  1291. $.each(links, function(index, link) {
  1292. self.child_links.push(link);
  1293. });
  1294. }
  1295. return index != -1;
  1296. }
  1297. });
  1298. var ForkNode = NodeModule($, IdGeneratorTable);
  1299. $.extend(ForkNode.prototype, Node.prototype, {
  1300. // Join nodes are connected through 'related' links
  1301. join: function() {
  1302. var self = this;
  1303. var join = null;
  1304. $.each(self.child_links(), function(index, link) {
  1305. if (link.name() == 'related') {
  1306. join = self.registry.get(link.child());
  1307. }
  1308. });
  1309. return join;
  1310. },
  1311. /**
  1312. * Append a node to the current fork
  1313. * Also adds join node to node.
  1314. * When adding the join node, append will remove all the children from the join!
  1315. * We need to make sure the join remembers its children since append will replace them.
  1316. * NOTE: Cannot append a fork or decision! Use addChild or replaceChild instead!
  1317. */
  1318. append: function(node) {
  1319. var self = this;
  1320. if (node.node_type() != 'decision' && node.node_type() != 'fork') {
  1321. var join = self.join();
  1322. if (join.id() != node.id()) {
  1323. var children = join.findChildren();
  1324. self.addChild(node);
  1325. node.append(join);
  1326. // remember children
  1327. $.each(children, function(index, child) {
  1328. join.addChild(child);
  1329. });
  1330. }
  1331. }
  1332. },
  1333. /**
  1334. * Replace child node with another node
  1335. * 1. Remove child if the replacement is related join
  1336. * 2. Apply Node.replaceChild for all other causes
  1337. * NOTE: can assume the only join this fork will ever see is the related join!
  1338. * This is because the related will always be the closest join for children.
  1339. * Also, the operations allowed that would make this all possible: detach, append;
  1340. * are inherently going to remove any other joins if they exist.
  1341. * This is also easier given nodes are contained within Forks!
  1342. */
  1343. replaceChild: function(child, replacement) {
  1344. var self = this;
  1345. var ret = true;
  1346. if (self.join().id() == replacement.id()) {
  1347. ret = self.removeChild(child);
  1348. } else {
  1349. ret = Node.prototype.replaceChild.apply(self, arguments);
  1350. }
  1351. var links = self.links().filter(function(element, index, arr) {
  1352. return self.registry.get(element.child()).node_type() != 'join';
  1353. });
  1354. if (links.length < 2) {
  1355. self.detach();
  1356. self.join().detach();
  1357. self.erase();
  1358. self.join().erase();
  1359. }
  1360. return ret;
  1361. },
  1362. /**
  1363. * Converts fork node into decision node in the following way:
  1364. * 1. Copies contents of current fork node into a new decision node
  1365. * 2. Detach fork node
  1366. * 3. Erase fork node
  1367. * 4. Append decision node to parent
  1368. */
  1369. convertToDecision: function() {
  1370. var self = this;
  1371. var join = self.join();
  1372. var end = null;
  1373. var child = join.findChildren()[0];
  1374. // Replace join with decision end
  1375. var decision_end_model = new NodeModel({
  1376. id: IdGeneratorTable['decisionend'].nextId(),
  1377. node_type: 'decisionend',
  1378. workflow: self.workflow(),
  1379. child_links: join.model.child_links
  1380. });
  1381. var decision_end_node = new Node(self._workflow, decision_end_model, self.registry);
  1382. $.each(decision_end_model.child_links, function(index, link) {
  1383. link.parent = decision_end_model.id;
  1384. });
  1385. var parents = join.findParents();
  1386. $.each(parents, function(index, parent) {
  1387. parent.replaceChild(join, decision_end_node);
  1388. });
  1389. // Replace fork with decision node
  1390. var decision_model = new DecisionModel({
  1391. id: IdGeneratorTable['decision'].nextId(),
  1392. name: self.name(),
  1393. description: self.description(),
  1394. node_type: 'decision',
  1395. workflow: self.workflow(),
  1396. child_links: self.model.child_links
  1397. });
  1398. var default_link = {
  1399. parent: decision_model.id,
  1400. child: self._workflow.end(),
  1401. name: 'default',
  1402. comment: ''
  1403. };
  1404. decision_model.child_links.push(default_link);
  1405. $.each(decision_model.child_links, function(index, link) {
  1406. link.parent = decision_model.id;
  1407. });
  1408. var parents = self.findParents();
  1409. var decision_node = new DecisionNode(self._workflow, decision_model, self.registry);
  1410. decision_node.removeChild(join);
  1411. decision_node.addChild(decision_end_node);
  1412. $.each(parents, function(index, parent) {
  1413. parent.replaceChild(self, decision_node);
  1414. });
  1415. // Get rid of fork and join in registry
  1416. join.erase();
  1417. self.erase();
  1418. // Add decision and decision end to registry
  1419. self.registry.add(decision_node.id(), decision_node);
  1420. self.registry.add(decision_end_node.id(), decision_end_node);
  1421. }
  1422. });
  1423. var DecisionNode = NodeModule($, IdGeneratorTable);
  1424. $.extend(DecisionNode.prototype, ForkNode.prototype, {
  1425. initialize: function(workflow, model, registry) {
  1426. var self = this;
  1427. var registry = registry;
  1428. var end = null;
  1429. },
  1430. end: function() {
  1431. var self = this;
  1432. var end = null;
  1433. $.each(self.child_links(), function(index, link) {
  1434. if (link.name() == 'related') {
  1435. end = self.registry.get(link.child());
  1436. }
  1437. });
  1438. return end;
  1439. },
  1440. /**
  1441. * Append a node to the current decision
  1442. * Also appends end node to node.
  1443. * NOTE: Cannot append a decision or fork! Use addChild or replaceChild instead!
  1444. */
  1445. append: function(node) {
  1446. var self = this;
  1447. if (node.node_type() != 'decision' && node.node_type() != 'fork') {
  1448. var end = self.end();
  1449. if (end.id() != node.id()) {
  1450. var children = end.findChildren();
  1451. self.addChild(node);
  1452. node.append(end);
  1453. // remember children
  1454. $.each(children, function(index, child) {
  1455. end.addChild(child);
  1456. });
  1457. }
  1458. }
  1459. },
  1460. /**
  1461. * Replace child node with another node
  1462. * 1. Remove child if the replacement is end
  1463. * 2. Apply Node.replaceChild for all other causes
  1464. */
  1465. replaceChild: function(child, replacement) {
  1466. var self = this;
  1467. var ret = true;
  1468. var end = self.end();
  1469. if (end && end.id() == replacement.id()) {
  1470. ret = self.removeChild(child);
  1471. } else {
  1472. ret = Node.prototype.replaceChild.apply(self, arguments);
  1473. }
  1474. if (self.links().length < 2) {
  1475. self.detach();
  1476. end.detach();
  1477. self.erase();
  1478. end.erase();
  1479. }
  1480. return ret;
  1481. }
  1482. });
  1483. /**
  1484. * Workflow module
  1485. */
  1486. var WorkflowModule = function($, NodeModelChooser, Node, ForkNode, DecisionNode, IdGeneratorTable) {
  1487. var module = function(options) {
  1488. var self = this;
  1489. // @see http://knockoutjs.com/documentation/plugins-mapping.html
  1490. var mapping = ko.mapping.fromJS(options.model, {
  1491. ignore: ['initialize', 'toString'],
  1492. job_properties: {
  1493. create: function(options) {
  1494. var parent = options.parent;
  1495. var subscribe = function(mapping) {
  1496. mapping.name.subscribe(function(value) {
  1497. parent.job_properties.valueHasMutated();
  1498. });
  1499. mapping.value.subscribe(function(value) {
  1500. parent.job_properties.valueHasMutated();
  1501. });
  1502. };
  1503. return map_params(options, subscribe);
  1504. },
  1505. update: function(options) {
  1506. var parent = options.parent;
  1507. var subscribe = function(mapping) {
  1508. mapping.name.subscribe(function(value) {
  1509. parent.job_properties.valueHasMutated();
  1510. });
  1511. mapping.value.subscribe(function(value) {
  1512. parent.job_properties.valueHasMutated();
  1513. });
  1514. };
  1515. return map_params(options, subscribe);
  1516. }
  1517. },
  1518. parameters: {
  1519. // Will receive individual objects to subscribe.
  1520. // Containing array is mapped automagically
  1521. create: function(options) {
  1522. var parent = options.parent;
  1523. var subscribe = function(mapping) {
  1524. mapping.name.subscribe(function(value) {
  1525. parent.parameters.valueHasMutated();
  1526. });
  1527. mapping.value.subscribe(function(value) {
  1528. parent.parameters.valueHasMutated();
  1529. });
  1530. };
  1531. return map_params(options, subscribe);
  1532. },
  1533. update: function(options) {
  1534. var parent = options.parent;
  1535. var subscribe = function(mapping) {
  1536. mapping.name.subscribe(function(value) {
  1537. parent.parameters.valueHasMutated();
  1538. });
  1539. mapping.value.subscribe(function(value) {
  1540. parent.parameters.valueHasMutated();
  1541. });
  1542. };
  1543. return map_params(options, subscribe);
  1544. }
  1545. }
  1546. });
  1547. $.extend(self, mapping);
  1548. $.each(mapping['__ko_mapping__'].mappedProperties, function(key, value) {
  1549. var key = key;
  1550. self[key].subscribe(function(value) {
  1551. self.is_dirty( true );
  1552. self.model[key] = ko.mapping.toJS(value);
  1553. });
  1554. });
  1555. self.model = options.model;
  1556. self.registry = options.registry;
  1557. self.options = options;
  1558. self.el = $('#workflow');
  1559. self.nodes = ko.observableArray([]);
  1560. self.kill = null;
  1561. self.is_dirty = ko.observable( false );
  1562. self.loading = ko.observable( false );
  1563. self.read_only = ko.observable( options.read_only || false );
  1564. self.new_node = ko.observable();
  1565. self.url = ko.computed(function() {
  1566. return '/oozie/workflows/' + self.id()
  1567. });
  1568. // Events
  1569. self.el.on('workflow:rebuild', function() {
  1570. self.rebuild();
  1571. });
  1572. self.el.on('workflow:events:load', function() {
  1573. self.dragAndDropEvents( options );
  1574. });
  1575. self.el.on('workflow:droppables:load', function() {
  1576. self.droppables();
  1577. });
  1578. self.el.on('workflow:draggables:load', function() {
  1579. self.draggables();
  1580. });
  1581. self.dragAndDropEvents( options );
  1582. self.el.trigger('workflow:events:loaded');
  1583. module.prototype.initialize.apply(self, arguments);
  1584. return self;
  1585. };
  1586. $.extend(module.prototype, {
  1587. // Normal stuff
  1588. initialize: function(options) {
  1589. var self = this;
  1590. $.extend(self.options, options);
  1591. if ('model' in options) {
  1592. self.model = options.model;
  1593. // Initialize nodes
  1594. if (self.model.nodes) {
  1595. self.registry.clear();
  1596. $.each(self.model.nodes, function(index, node) {
  1597. var NodeModel = NodeModelChooser(node.node_type);
  1598. var model = new NodeModel(node);
  1599. var temp = null;
  1600. switch(node.node_type) {
  1601. case 'start':
  1602. temp = new StartNode(self, model, self.registry);
  1603. break;
  1604. case 'fork':
  1605. temp = new ForkNode(self, model, self.registry);
  1606. break;
  1607. case 'decision':
  1608. temp = new DecisionNode(self, model, self.registry);
  1609. break;
  1610. case 'kill':
  1611. temp = self.kill = new Node(self, model, self.registry);
  1612. break;
  1613. default:
  1614. temp = new Node(self, model, self.registry);
  1615. break;
  1616. }
  1617. self.registry.add(temp.id(), temp);
  1618. });
  1619. }
  1620. // Update data
  1621. $.each(self.model, function (key, value) {
  1622. if (key in self) {
  1623. switch(key) {
  1624. case 'job_properties':
  1625. case 'parameters':
  1626. // These may be serialized JSON data since that is how they are stored
  1627. self[key].removeAll();
  1628. var arr = $.parseJSON(value) || value;
  1629. $.each(arr, function(index, obj) {
  1630. var mapping = ko.mapping.fromJS(obj);
  1631. mapping.name.subscribe(function(value) {
  1632. self[key].valueHasMutated();
  1633. });
  1634. mapping.value.subscribe(function(value) {
  1635. self[key].valueHasMutated();
  1636. });
  1637. self[key].push(mapping);
  1638. });
  1639. break;
  1640. case 'nodes':
  1641. break;
  1642. default:
  1643. self[key](value);
  1644. break;
  1645. }
  1646. }
  1647. });
  1648. self.is_dirty( false );
  1649. }
  1650. if (!self.kill) {
  1651. var kill_json = {
  1652. "description": "",
  1653. "workflow": self.id(),
  1654. "child_links": [],
  1655. "node_type": "kill",
  1656. "message": "Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]",
  1657. "name": "kill",
  1658. "id": IdGeneratorTable['kill'].nextId()
  1659. };
  1660. var NodeModel = NodeModelChooser(kill_json.node_type);
  1661. var model = new NodeModel(kill_json);
  1662. self.kill = new Node(self, model, self.registry);
  1663. self.registry.add(self.kill.id(), self.kill);
  1664. }
  1665. if ('read_only' in options) {
  1666. self.read_only(options['read_only']);
  1667. }
  1668. },
  1669. toString: function() {
  1670. return '';
  1671. var s = '[';
  1672. $.each(self.registry.nodes, function(key, node) {
  1673. s += node.model.toString() + ",\n";
  1674. });
  1675. return s + ']';
  1676. },
  1677. // Data manipulation
  1678. toJSON: function() {
  1679. var self = this;
  1680. data = $.extend(true, {}, self.model);
  1681. var nodes = [];
  1682. $.each(self.registry.nodes, function(key, node) {
  1683. // Create object with members from the actual model to address JSON.stringify bug
  1684. // JSON.stringify does not pick up members specified in prototype prior to object creation.
  1685. var model = {};
  1686. for (var key in node.model) {
  1687. model[key] = node.model[key];
  1688. }
  1689. nodes.push(model);
  1690. });
  1691. data['nodes'] = nodes;
  1692. return JSON.stringify(data);
  1693. },
  1694. save: function( options ) {
  1695. var self = this;
  1696. var request = $.extend({
  1697. url: self.url() + '/save',
  1698. type: 'POST',
  1699. data: { workflow: self.toJSON() },
  1700. success: $.noop,
  1701. error: $.noop
  1702. }, options || {});
  1703. $.ajax(request);
  1704. },
  1705. load: function( options ) {
  1706. var self = this;
  1707. var request = $.extend({
  1708. url: self.url(),
  1709. dataType: 'json',
  1710. type: 'GET',
  1711. success: $.noop,
  1712. error: $.noop
  1713. }, options || {});
  1714. $.ajax(request);
  1715. },
  1716. reload: function(model) {
  1717. var self = this;
  1718. // Clear all children
  1719. $.each(self.registry.nodes, function(index, node) {
  1720. node.children.removeAll();
  1721. });
  1722. self.nodes.removeAll();
  1723. self.initialize({model: model});
  1724. self.rebuild();
  1725. self.el.trigger('workflow:loaded');
  1726. },
  1727. addParameter: function(data, event) {
  1728. var self = this;
  1729. var prop = { name: ko.observable(""), value: ko.observable("") };
  1730. // force bubble up to containing observable array.
  1731. prop.name.subscribe(function(){
  1732. self.parameters.valueHasMutated();
  1733. });
  1734. prop.value.subscribe(function(){
  1735. self.parameters.valueHasMutated();
  1736. });
  1737. self.parameters.push(prop);
  1738. },
  1739. removeParameter: function(data, event) {
  1740. var self = this;
  1741. self.parameters.remove(data);
  1742. },
  1743. addJobProperty: function(data, event) {
  1744. var self = this;
  1745. var prop = { name: ko.observable(""), value: ko.observable("") };
  1746. // force bubble up to containing observable array.
  1747. prop.name.subscribe(function(){
  1748. self.parameters.valueHasMutated();
  1749. });
  1750. prop.value.subscribe(function(){
  1751. self.parameters.valueHasMutated();
  1752. });
  1753. self.job_properties.push(prop);
  1754. },
  1755. removeJobProperty: function(data, event) {
  1756. var self = this;
  1757. self.job_properties.remove(data);
  1758. },
  1759. // Workflow UI
  1760. // Function to build nodes... recursively.
  1761. build: function() {
  1762. var self = this;
  1763. var maximum = 50;
  1764. var count = 0;
  1765. var methodChooser = function(node, collection, skip_parents_check) {
  1766. if (count++ >= maximum) {
  1767. if (window.error) {
  1768. console.error('Hit maximum number of node recursion: ' + maximum);
  1769. }
  1770. return null;
  1771. }
  1772. if (!node) {
  1773. return node;
  1774. }
  1775. var parents = node.findParents();
  1776. // Found end of decision node or found join!
  1777. if (parents.length > 1 && !skip_parents_check) {
  1778. return node;
  1779. }
  1780. switch(node.node_type()) {
  1781. case 'start':
  1782. case 'end':
  1783. case 'kill':
  1784. case 'fork':
  1785. case 'join':
  1786. case 'decision':
  1787. case 'decisionend':
  1788. return control(node, collection);
  1789. default:
  1790. return normal(node, collection);
  1791. }
  1792. };
  1793. var normal = function(node, collection) {
  1794. collection.push(node);
  1795. var retNode = null;
  1796. $.each(node.links(), function(index, link) {
  1797. var next_node = self.registry.get(link.child());
  1798. retNode = methodChooser(next_node, collection, false, true);
  1799. });
  1800. return retNode;
  1801. };
  1802. var control = function(node, collection, skip_parents_check) {
  1803. switch(node.node_type()) {
  1804. case 'start':
  1805. case 'end':
  1806. case 'kill':
  1807. case 'join':
  1808. case 'decisionend':
  1809. return normal(node, collection, false, true);
  1810. case 'fork':
  1811. collection.push(node);
  1812. // Wait for join.
  1813. // Iterate through all children and add them to child collection.
  1814. var join = null;
  1815. $.each(node.links(), function(index, link) {
  1816. var next_node = self.registry.get(link.child());
  1817. var collection = ko.observableArray([]);
  1818. node.children.push(collection);
  1819. join = methodChooser(next_node, collection, false, true);
  1820. });
  1821. // Add join to collection, then find its single child.
  1822. return methodChooser(join, collection, true, true);
  1823. case 'decision':
  1824. collection.push(node);
  1825. // Waits for end, then runs through children of end node
  1826. var end = null;
  1827. $.each(node.links(), function(index, link) {
  1828. var next_node = self.registry.get(link.child());
  1829. var collection = ko.observableArray([]);
  1830. node.children.push(collection);
  1831. end = methodChooser(next_node, collection, true, true);
  1832. });
  1833. // Add end
  1834. return methodChooser(node.end(), collection, true, true);
  1835. default:
  1836. // Should never get here.
  1837. return node;
  1838. }
  1839. };
  1840. methodChooser(self.registry.get(self.start()), self.nodes, false, true);
  1841. $(".tooltip").remove();
  1842. $("*[rel=tooltip]").tooltip();
  1843. },
  1844. rebuild: function() {
  1845. var self = this;
  1846. // Clear all children
  1847. $.each(self.registry.nodes, function(index, node) {
  1848. node.children.removeAll();
  1849. });
  1850. self.nodes.removeAll();
  1851. // Rebuild
  1852. self.build();
  1853. self.draggables();
  1854. self.droppables();
  1855. self.el.trigger('workflow:rebuilt');
  1856. },
  1857. draggables: function() {
  1858. var self = this;
  1859. self.el.find('.node-action').each(function(index, el) {
  1860. if (!$(el).hasClass('ui-draggable')) {
  1861. $(el).find('.row-fluid').eq(0).css('cursor', 'move');
  1862. $(el).draggable({
  1863. containment: [ self.el.offset().left - 10, self.el.offset().top - 10,
  1864. self.el.offset().left + self.el.outerWidth(), self.el.offset().top + self.el.outerHeight() ],
  1865. refreshPositions: true,
  1866. revert: true,
  1867. zIndex: 1000,
  1868. opacity: 0.45,
  1869. revertDuration: 0,
  1870. cancel: '.node-action-bar'
  1871. });
  1872. }
  1873. });
  1874. },
  1875. droppables: function() {
  1876. var self = this;
  1877. self.el.find('.node-link').each(function(index, el) {
  1878. $(el).droppable({
  1879. 'hoverClass': 'node-link-hover',
  1880. 'greedy': true,
  1881. 'accept': '.node-action',
  1882. 'tolerance': 'pointer'
  1883. });
  1884. });
  1885. self.el.find('.node-decision-end').each(function(index, el) {
  1886. $(el).droppable({
  1887. 'hoverClass': 'node-link-hover',
  1888. 'greedy': true,
  1889. 'accept': '.node-action',
  1890. 'tolerance': 'pointer'
  1891. });
  1892. });
  1893. self.el.find('.node-fork .action').each(function(index, el) {
  1894. $(el).droppable({
  1895. 'hoverClass': 'node-fork-hover',
  1896. 'greedy': true,
  1897. 'accept': '.node-action',
  1898. 'tolerance': 'pointer'
  1899. });
  1900. });
  1901. self.el.find('.node-decision .action').each(function(index, el) {
  1902. $(el).droppable({
  1903. 'hoverClass': 'node-fork-hover',
  1904. 'greedy': true,
  1905. 'accept': '.node-action',
  1906. 'tolerance': 'pointer'
  1907. });
  1908. });
  1909. self.el.find('.node-action .action').each(function(index, el) {
  1910. $(el).droppable({
  1911. 'hoverClass': 'node-action-hover',
  1912. 'greedy': true,
  1913. 'accept': '.node-action',
  1914. 'tolerance': 'pointer'
  1915. });
  1916. });
  1917. },
  1918. dragAndDropEvents: function( options ) {
  1919. var self = this;
  1920. var read_only_error_handler = options.read_only_error_handler;
  1921. // Build event delegations.
  1922. // Drop on node link
  1923. self.el.on('drop', '.node-link', function(e, ui) {
  1924. if (self.read_only()) {
  1925. read_only_error_handler();
  1926. return false;
  1927. }
  1928. // draggable should be a node.
  1929. // droppable should be a link.
  1930. var draggable = ko.contextFor(ui.draggable[0]).$data;
  1931. var droppable = ko.contextFor(this).$data;
  1932. // If newParent is fork, prepend to child instead.
  1933. // This will make it so that we can drop and drop to the top of a node list within a fork.
  1934. var newParent = self.registry.get(droppable.parent());
  1935. if (newParent.id() != draggable.id() && !newParent.isChild(draggable)) {
  1936. switch(newParent.node_type()) {
  1937. case 'fork':
  1938. case 'decision':
  1939. draggable.detach();
  1940. var child = self.registry.get(droppable.child());
  1941. newParent.replaceChild(child, draggable);
  1942. draggable.addChild(child);
  1943. break;
  1944. case 'join':
  1945. case 'decisionend':
  1946. // Join and decisionend may disappear when we detach...
  1947. // Remember its children and append to child.
  1948. var parents = newParent.findParents();
  1949. draggable.detach();
  1950. if (newParent.findParents().length < 2) {
  1951. $.each(parents, function(index, parent) {
  1952. parent.append(draggable);
  1953. });
  1954. } else {
  1955. newParent.append(draggable);
  1956. }
  1957. break;
  1958. default:
  1959. draggable.detach();
  1960. newParent.append(draggable);
  1961. break;
  1962. }
  1963. workflow.is_dirty( true );
  1964. self.rebuild();
  1965. }
  1966. // Prevent bubbling events
  1967. return false;
  1968. });
  1969. // Drop on fork
  1970. self.el.on('drop', '.node-fork', function(e, ui) {
  1971. if (self.read_only()) {
  1972. read_only_error_handler();
  1973. return false;
  1974. }
  1975. // draggable should be a node.
  1976. // droppable should be a fork.
  1977. var draggable = ko.contextFor(ui.draggable[0]).$data;
  1978. var droppable = ko.contextFor(this).$data;
  1979. if (!droppable.isChild(draggable) && droppable.id() != draggable.id()) {
  1980. draggable.detach();
  1981. droppable.append(draggable);
  1982. self.rebuild();
  1983. }
  1984. // Prevent bubbling events
  1985. return false;
  1986. });
  1987. // Drop on decision
  1988. self.el.on('drop', '.node-decision', function(e, ui) {
  1989. if (self.read_only()) {
  1990. read_only_error_handler();
  1991. return false;
  1992. }
  1993. // draggable should be a node.
  1994. // droppable should be a fork.
  1995. var draggable = ko.contextFor(ui.draggable[0]).$data;
  1996. var droppable = ko.contextFor(this).$data;
  1997. if (!droppable.isChild(draggable) && droppable.id() != draggable.id()) {
  1998. draggable.detach();
  1999. droppable.append(draggable);
  2000. self.rebuild();
  2001. }
  2002. // Prevent bubbling events
  2003. return false;
  2004. });
  2005. // Drop on action
  2006. self.el.on('drop', '.node-action', function(e, ui) {
  2007. if (self.read_only()) {
  2008. read_only_error_handler();
  2009. return false;
  2010. }
  2011. // draggable should be a node.
  2012. // droppable should be a node.
  2013. var draggable = ko.contextFor(ui.draggable[0]).$data;
  2014. var droppable = ko.contextFor(this).$data;
  2015. // Create a fork and join programatically.
  2016. var newParents = droppable.findParents();
  2017. // skip forking beneathe a decision node
  2018. if (droppable.id() != draggable.id() && newParents.length == 1 && draggable.findParents().length <= 1) {
  2019. var ForkModel = NodeModelChooser('fork');
  2020. var JoinModel = NodeModelChooser('join');
  2021. var fork = new ForkModel({
  2022. id: IdGeneratorTable['fork'].nextId(),
  2023. description: "",
  2024. workflow: self.id,
  2025. node_type: "fork",
  2026. child_links: []
  2027. });
  2028. var forkNode = new ForkNode(self, fork, self.registry);
  2029. var join = new JoinModel({
  2030. id: IdGeneratorTable['join'].nextId(),
  2031. description: "",
  2032. workflow: self.id,
  2033. node_type: "join",
  2034. child_links: []
  2035. });
  2036. var joinNode = new Node(self, join, self.registry);
  2037. self.registry.add(forkNode.id(), forkNode);
  2038. self.registry.add(joinNode.id(), joinNode);
  2039. forkNode.addChild(joinNode);
  2040. // Handles fork creation.
  2041. $.each(newParents, function(index, parent) {
  2042. parent.replaceChild(droppable, forkNode);
  2043. });
  2044. draggable.detach();
  2045. forkNode.append(draggable);
  2046. forkNode.append(droppable);
  2047. self.rebuild();
  2048. }
  2049. // Prevent bubbling events.
  2050. return false;
  2051. });
  2052. }
  2053. });
  2054. return module;
  2055. };
  2056. var Workflow = WorkflowModule($, nodeModelChooser, Node, ForkNode, DecisionNode, IdGeneratorTable);