workflow-editor.ko.js 5.0 KB

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  1. // Licensed to Cloudera, Inc. under one
  2. // or more contributor license agreements. See the NOTICE file
  3. // distributed with this work for additional information
  4. // regarding copyright ownership. Cloudera, Inc. licenses this file
  5. // to you under the Apache License, Version 2.0 (the
  6. // "License"); you may not use this file except in compliance
  7. // with the License. You may obtain a copy of the License at
  8. //
  9. // http://www.apache.org/licenses/LICENSE-2.0
  10. //
  11. // Unless required by applicable law or agreed to in writing, software
  12. // distributed under the License is distributed on an "AS IS" BASIS,
  13. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14. // See the License for the specific language governing permissions and
  15. // limitations under the License.
  16. function magicLayout(vm) {
  17. loadLayout(vm, vm.initial.layout);
  18. $(document).trigger("magicLayout");
  19. }
  20. function loadLayout(viewModel, json_layout) {
  21. var _columns = [];
  22. $(json_layout).each(function (cnt, json_col) {
  23. var _rows = [];
  24. $(json_col.rows).each(function (rcnt, json_row) {
  25. var row = new Row([], viewModel);
  26. $(json_row.widgets).each(function (wcnt, widget) {
  27. row.addWidget(new Widget({
  28. size:widget.size,
  29. id: widget.id,
  30. name: widget.name,
  31. widgetType: widget.widgetType,
  32. properties: widget.properties,
  33. offset: widget.offset,
  34. loading: true,
  35. vm: viewModel
  36. }));
  37. });
  38. _rows.push(row);
  39. });
  40. var column = new Column(json_col.size, _rows);
  41. _columns = _columns.concat(column);
  42. });
  43. viewModel.columns(_columns);
  44. }
  45. // End dashboard lib
  46. var Node = function (node) {
  47. var self = this;
  48. var type = typeof node.widgetType != "undefined" ? node.widgetType : node.type;
  49. self.id = ko.observable(typeof node.id != "undefined" && node.id != null ? node.id : UUID());
  50. self.name = ko.observable(typeof node.name != "undefined" && node.name != null ? node.name : "");
  51. self.type = ko.observable(typeof type != "undefined" && type != null ? type : "");
  52. self.properties = ko.mapping.fromJS(typeof node.properties != "undefined" && node.properties != null ? node.properties : {});
  53. self.childreen = ko.observable(typeof node.childreen != "undefined" && node.childreen != null ? node.childreen : []);
  54. }
  55. var Workflow = function (vm, workflow) {
  56. var self = this;
  57. self.id = ko.observable(typeof workflow.id != "undefined" && workflow.id != null ? workflow.id : UUID());
  58. self.name = ko.observable(typeof workflow.name != "undefined" && workflow.name != null ? workflow.name : "");
  59. self.nodes = ko.observableArray([]);
  60. self.addNode = function(widget) {
  61. if (self.nodes().length == 0) {
  62. var node = new Node(ko.mapping.toJS(widget));
  63. self.nodes.push(node);
  64. }
  65. }
  66. self.getNodeById = function (node_id) {
  67. var _node = null;
  68. $.each(self.nodes(), function (index, node) {
  69. if (node.id() == node_id) {
  70. _node = node;
  71. return false;
  72. }
  73. });
  74. return _node;
  75. }
  76. }
  77. var WorkflowEditorViewModel = function (layout_json, workflow_json) {
  78. var self = this;
  79. self.isEditing = ko.observable(true);
  80. self.toggleEditing = function () {
  81. self.isEditing(! self.isEditing());
  82. };
  83. self.columns = ko.observable([]);
  84. self.previewColumns = ko.observable("");
  85. self.workflow = new Workflow(self, workflow_json);
  86. self.inited = ko.observable(self.columns().length > 0);
  87. self.init = function(callback) {
  88. loadLayout(self, layout_json);
  89. }
  90. self.getWidgetById = function (widget_id) {
  91. var _widget = null;
  92. $.each(self.columns(), function (i, col) {
  93. $.each(col.rows(), function (j, row) {
  94. $.each(row.widgets(), function (z, widget) {
  95. if (widget.id() == widget_id){
  96. _widget = widget;
  97. }
  98. });
  99. });
  100. });
  101. return _widget;
  102. }
  103. self.save = function () {
  104. $.post("/oozie/editor/workflow/save", {
  105. "layout": ko.mapping.toJSON(self.columns),
  106. "workflow": ko.mapping.toJSON(self.workflow)
  107. }, function (data) {
  108. if (data.status == 0) {
  109. self.dashboard.id(data.id);
  110. $(document).trigger("info", data.message);
  111. if (window.location.search.indexOf("workflow") == -1) {
  112. window.location.hash = '#workflow=' + data.id;
  113. }
  114. }
  115. else {
  116. $(document).trigger("error", data.message);
  117. }
  118. }).fail(function (xhr, textStatus, errorThrown) {
  119. $(document).trigger("error", xhr.responseText);
  120. });
  121. };
  122. function bareWidgetBuilder(name, type){
  123. return new Widget({
  124. size: 12,
  125. id: UUID(),
  126. name: name,
  127. widgetType: type
  128. });
  129. }
  130. self.draggableHiveAction = ko.observable(bareWidgetBuilder("Hive Script", "hive-widget"));
  131. self.draggablePigAction = ko.observable(bareWidgetBuilder("Pig Script", "pig-widget"));
  132. self.draggableJavaAction = ko.observable(bareWidgetBuilder("Java program", "java-widget"));
  133. self.draggableMapReduceAction = ko.observable(bareWidgetBuilder("MapReduce job", "mapreduce-widget"));
  134. };