catalog-ui/src/app/ng2/pages/composition/interface-operatons/operation-creator/interface-operation-handler.component.ts

   1 /*
   2 * ============LICENSE_START=======================================================
   3 * SDC
   4 * ================================================================================
   5 *  Copyright (C) 2021 Nordix Foundation. All rights reserved.
   6 *  ================================================================================
   7 *  Licensed under the Apache License, Version 2.0 (the "License");
   8 *  you may not use this file except in compliance with the License.
   9 *  You may obtain a copy of the License at
  10 *
  11 *        http://www.apache.org/licenses/LICENSE-2.0
  12 *  Unless required by applicable law or agreed to in writing, software
  13 *  distributed under the License is distributed on an "AS IS" BASIS,
  14 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15 *  See the License for the specific language governing permissions and
  16 *  limitations under the License.
  17 *
  18 *  SPDX-License-Identifier: Apache-2.0
  19 *  ============LICENSE_END=========================================================
  20 */
  21 import {Component, EventEmitter, Output, ViewChild} from '@angular/core';
  22 import { FormControl } from '@angular/forms';
  23 import {UIInterfaceModel} from "../interface-operations.component";
  24 import {
  25     ActivityParameter,
  26     IActivityParameterList,
  27     IFilterParameterList,
  28     InputOperationParameter,
  29     InterfaceOperationModel,
  30     IOperationParamsList,
  31     FilterParameter,
  32     Milestone,
  33     MilestoneEnum
  34 } from "../../../../../models/interfaceOperation";
  35 import {TranslateService} from "../../../../shared/translator/translate.service";
  36 import {DropdownValue} from "../../../../components/ui/form-components/dropdown/ui-element-dropdown.component";
  37 import {ArtifactModel} from "../../../../../models/artifacts";
  38 import {PropertyBEModel} from "../../../../../models/properties-inputs/property-be-model";
  39 import {PropertyParamRowComponent} from "./property-param-row/property-param-row.component";
  40 import {PropertyFEModel} from "../../../../../models/properties-inputs/property-fe-model";
  41 import {IDropDownOption} from 'onap-ui-angular';
  42 import {ComponentServiceNg2} from "../../../../services/component-services/component.service";
  43 import {DropDownComponent} from "onap-ui-angular/dist/form-elements/dropdown/dropdown.component";
  44 import {DataTypeService} from "../../../../services/data-type.service";
  45 import {Observable} from "rxjs/Observable";
  46 import {DataTypeModel} from "../../../../../models/data-types";
  47 import {InstanceFeDetails} from "../../../../../models/instance-fe-details";
  48 import {TopologyTemplateService} from "app/ng2/services/component-services/topology-template.service";
  49 import {CustomToscaFunction} from "../../../../../models/default-custom-functions";
  50
  51 @Component({
  52     selector: 'operation-handler',
  53     templateUrl: './interface-operation-handler.component.html',
  54     styleUrls: ['./interface-operation-handler.component.less'],
  55     providers: [TranslateService]
  56 })
  57 export class InterfaceOperationHandlerComponent {
  58
  59     @Output('propertyChanged') emitter: EventEmitter<PropertyFEModel> = new EventEmitter<PropertyFEModel>();
  60     @ViewChild('interfaceOperationDropDown') interfaceOperationDropDown: DropDownComponent;
  61
  62     input: {
  63         componentInstanceMap: Map<string, InstanceFeDetails>;
  64         toscaArtifactTypes: Array<DropdownValue>;
  65         selectedInterface: UIInterfaceModel;
  66         selectedInterfaceOperation: InterfaceOperationModel;
  67         validityChangedCallback: Function;
  68         isViewOnly: boolean;
  69         isEdit: boolean;
  70         validImplementationProps: boolean;
  71         validMilestoneActivities: boolean;
  72         validMilestoneFilters: boolean;
  73         modelName: string;
  74     };
  75
  76     dataTypeMap$: Observable<Map<string, DataTypeModel>>;
  77     dataTypeMap: Map<string, DataTypeModel>;
  78     interfaceType: string;
  79     artifactVersion: string;
  80     artifactName: string;
  81     interfaceOperationName: string;
  82     operationToUpdate: InterfaceOperationModel;
  83     inputs: Array<InputOperationParameter> = [];
  84     properties: Array<PropertyParamRowComponent> = [];
  85     isLoading: boolean = false;
  86     isViewOnly: boolean;
  87     isEdit: boolean;
  88     validImplementationProps: boolean;
  89     validMilestoneActivities: boolean;
  90     validMilestoneFilters: boolean;
  91     interfaceTypes: Array<DropdownValue> = [];
  92     interfaceTypeOptions: Array<DropDownOption> = [];
  93     selectedInterfaceType: DropDownOption = undefined;
  94     interfaceOperationMap: Map<string, Array<string>> = new Map<string, Array<string>>();
  95     interfaceOperationOptions: Array<DropDownOption> = [];
  96     selectedInterfaceOperation: DropDownOption = undefined;
  97     modelName: string;
  98     toscaArtifactTypeSelected: string;
  99     toscaArtifactTypeProperties: Array<PropertyBEModel> = [];
 100     artifactTypeProperties: Array<InputOperationParameter> = [];
 101     toscaArtifactTypes: Array<DropdownValue> = [];
 102     componentInstanceMap: Map<string, InstanceFeDetails>;
 103     customToscaFunctions: Array<CustomToscaFunction>;
 104     enableAddArtifactImplementation: boolean;
 105     propertyValueValid: boolean = true;
 106     inputTypeOptions: any[];
 107     timeoutValue = new FormControl('');
 108     timeoutType = new FormControl('');
 109     invalidMilestones: string[] = [];
 110     activeTab: string;
 111     milestones = Object.keys(MilestoneEnum)
 112             .map(key => MilestoneEnum[key]);
 113
 114     constructor(private dataTypeService: DataTypeService,
 115                 private componentServiceNg2: ComponentServiceNg2,
 116                 private topologyTemplateService: TopologyTemplateService) {
 117     }
 118
 119     ngOnInit() {
 120         this.isViewOnly = this.input.isViewOnly;
 121         this.isEdit = this.input.isEdit;
 122         this.validImplementationProps = this.input.validImplementationProps;
 123         this.validMilestoneActivities = this.input.validMilestoneActivities;
 124         this.validMilestoneFilters = this.input.validMilestoneFilters;
 125         this.componentInstanceMap =  this.input.componentInstanceMap ? this.input.componentInstanceMap : null;
 126         this.interfaceType = this.input.selectedInterface.type;
 127         this.operationToUpdate = new InterfaceOperationModel(this.input.selectedInterfaceOperation);
 128         this.operationToUpdate.interfaceId = this.input.selectedInterface.uniqueId;
 129         this.operationToUpdate.interfaceType = this.input.selectedInterface.type;
 130         this.modelName = this.input.modelName;
 131         this.timeoutType.setValue('sec');
 132         if (this.operationToUpdate.implementation && this.operationToUpdate.implementation.timeout != null) {
 133             this.timeoutValue.setValue(this.operationToUpdate.implementation.timeout);
 134             let timeout = this.timeoutValue.value / 3600;
 135             if (Number.isInteger(timeout)) {
 136                 if (timeout > 23 && Number.isInteger(timeout / 24)) {
 137                     this.timeoutValue.setValue(timeout / 24);
 138                     this.timeoutType.setValue("day");
 139                 } else {
 140                     this.timeoutValue.setValue(timeout);
 141                     this.timeoutType.setValue("hour");
 142                 }
 143             } else if (Number.isInteger(timeout / 24)) {
 144                 this.timeoutValue.setValue(timeout / 24);
 145                 this.timeoutType.setValue("day");
 146             }
 147         }
 148         if (!this.operationToUpdate.milestones) {
 149             this.operationToUpdate.milestones = {};
 150         }
 151         this.initCustomToscaFunctions();
 152         this.initInputs();
 153         this.removeImplementationQuote();
 154         this.loadInterfaceOperationImplementation();
 155
 156         this.dataTypeMap$ = new Observable<Map<string, DataTypeModel>>(subscriber => {
 157             this.dataTypeService.findAllDataTypesByModel(this.modelName)
 158             .then((dataTypesMap: Map<string, DataTypeModel>) => {
 159                 subscriber.next(dataTypesMap);
 160             });
 161         });
 162         this.dataTypeMap$.subscribe(value => {
 163             this.dataTypeMap = value;
 164         });
 165     }
 166
 167     private initInputs() {
 168         if (!this.operationToUpdate.inputs) {
 169             this.operationToUpdate.inputs = new class implements IOperationParamsList {
 170                 listToscaDataDefinition: Array<InputOperationParameter> = [];
 171             }
 172         }
 173
 174         this.inputs = Array.from(this.operationToUpdate.inputs.listToscaDataDefinition);
 175         this.removeImplementationQuote();
 176         this.loadInterfaceOperationImplementation();
 177         this.loadInterfaceType();
 178     }
 179
 180     private initCustomToscaFunctions() {
 181         this.customToscaFunctions = [];
 182         this.topologyTemplateService.getDefaultCustomFunction().toPromise().then((data) => {
 183             if (data) {
 184                 for (let customFunction of data) {
 185                     this.customToscaFunctions.push(new CustomToscaFunction(customFunction));
 186                 }
 187             }
 188         });
 189     }
 190
 191     private loadInterfaceType() {
 192         this.componentServiceNg2.getInterfaceTypesByModel(this.modelName)
 193         .subscribe(response => {
 194             if (response) {
 195                 this.interfaceOperationMap = new Map<string, Array<string>>();
 196                 for (const interfaceType of Object.keys(response).sort()) {
 197                     const operationList = response[interfaceType];
 198                     operationList.sort();
 199                     this.interfaceOperationMap.set(interfaceType, operationList);
 200                     const operationDropDownOption: DropDownOption = new DropDownOption(interfaceType);
 201                     this.interfaceTypeOptions.push(operationDropDownOption);
 202                     if (this.interfaceType == interfaceType) {
 203                         this.selectedInterfaceType = operationDropDownOption;
 204                     }
 205                 }
 206                 this.loadInterfaceTypeOperations();
 207             }
 208         });
 209     }
 210
 211     loadInterfaceTypeOperations() {
 212         this.interfaceOperationOptions = new Array<DropDownOption>();
 213         const interfaceOperationList = this.interfaceOperationMap.get(this.interfaceType);
 214
 215         if (interfaceOperationList) {
 216             interfaceOperationList.forEach(operationName => {
 217                 const operationOption = new DropDownOption(operationName, operationName);
 218                 this.interfaceOperationOptions.push(operationOption);
 219                 if (this.operationToUpdate.name == operationName) {
 220                     this.selectedInterfaceOperation = operationOption
 221                 }
 222             });
 223         }
 224
 225         this.interfaceOperationDropDown.allOptions = this.interfaceOperationOptions;
 226     }
 227
 228     private loadInterfaceOperationImplementation() {
 229         this.toscaArtifactTypes = this.input.toscaArtifactTypes;
 230         if (this.operationToUpdate.implementation) {
 231             this.artifactVersion = this.operationToUpdate.implementation.artifactVersion;
 232             this.artifactName = this.operationToUpdate.implementation.artifactName;
 233             this.toscaArtifactTypeProperties = this.operationToUpdate.implementation.properties;
 234         }
 235         this.artifactTypeProperties = this.convertArtifactsPropertiesToInput();
 236         this.getArtifactTypesSelected();
 237     }
 238
 239     onDescriptionChange = (value: any): void => {
 240         this.operationToUpdate.description = value;
 241     }
 242
 243     onURIChange(value: string | undefined) {
 244         if(!this.operationToUpdate.implementation){
 245             let artifact = new ArtifactModel();
 246             this.operationToUpdate.implementation = artifact;
 247         }
 248         this.operationToUpdate.implementation.artifactName = value ? value : '';
 249     }
 250
 251     onPropertyValueChange = (propertyValue) => {
 252         this.emitter.emit(propertyValue);
 253     }
 254
 255     onMarkToAddArtifactToImplementation(event: boolean) {
 256         if (!event) {
 257             this.toscaArtifactTypeSelected = undefined;
 258             this.artifactVersion = undefined;
 259             if (this.operationToUpdate.implementation.artifactType) {
 260                 this.operationToUpdate.implementation.artifactVersion = '';
 261                 this.operationToUpdate.implementation.artifactType = '';
 262             }
 263             this.toscaArtifactTypeProperties = undefined;
 264             this.artifactTypeProperties = undefined;
 265         } else {
 266             this.getArtifactTypesSelected();
 267         }
 268         this.enableAddArtifactImplementation = event;
 269     }
 270
 271     onSelectToscaArtifactType(type: IDropDownOption) {
 272         if (type) {
 273             let toscaArtifactType = type.value;
 274             let artifact = new ArtifactModel();
 275             artifact.artifactName = this.operationToUpdate.implementation.artifactName;
 276             artifact.artifactVersion = this.operationToUpdate.implementation.artifactVersion;
 277             artifact.artifactType = toscaArtifactType.type;
 278             artifact.properties = toscaArtifactType.properties;
 279             this.toscaArtifactTypeProperties = artifact.properties;
 280             this.artifactTypeProperties = this.convertArtifactsPropertiesToInput();
 281             this.toscaArtifactTypeSelected = artifact.artifactType;
 282             this.operationToUpdate.implementation = artifact;
 283             this.getArtifactTypesSelected();
 284         }
 285     }
 286
 287     onArtifactVersionChange(value: string | undefined) {
 288             this.operationToUpdate.implementation.artifactVersion = value ? value : '';
 289     }
 290
 291     onAddInput(inputOperationParameter: InputOperationParameter) {
 292         this.addInput(inputOperationParameter);
 293     }
 294
 295     propertyValueValidation = (propertyValue): void => {
 296         this.onPropertyValueChange(propertyValue);
 297         this.propertyValueValid = propertyValue.isValid;
 298     }
 299
 300     onRemoveInput = (inputParam: InputOperationParameter): void => {
 301         let index = this.inputs.indexOf(inputParam);
 302         this.inputs.splice(index, 1);
 303     }
 304
 305     timeoutConversion = (): void => {
 306         let timeout = this.timeoutValue.value;
 307         if (timeout != null) {
 308             if (this.timeoutType.value == null || this.timeoutType.value == 'sec') {
 309                 this.operationToUpdate.implementation.timeout = timeout;
 310                 return;
 311             }
 312             if (this.timeoutType.value == 'hour') {
 313                 this.operationToUpdate.implementation.timeout = timeout * 3600;
 314             } else if (this.timeoutType.value == 'day') {
 315                 this.operationToUpdate.implementation.timeout = (timeout * 24) * 3600;
 316             }
 317         }
 318     }
 319
 320     private removeImplementationQuote(): void {
 321         if (this.operationToUpdate.implementation) {
 322             if (!this.operationToUpdate.implementation
 323                 || !this.operationToUpdate.implementation.artifactName) {
 324                 return;
 325             }
 326
 327             let implementation = this.operationToUpdate.implementation.artifactName.trim();
 328
 329             if (implementation.startsWith("'") && implementation.endsWith("'")) {
 330                 this.operationToUpdate.implementation.artifactName = implementation.slice(1, -1);
 331             }
 332         }
 333     }
 334
 335     private getArtifactTypesSelected() {
 336         if (this.operationToUpdate.implementation && this.operationToUpdate.implementation.artifactType) {
 337             this.artifactName =
 338                 this.artifactName ? this.artifactName : this.operationToUpdate.implementation.artifactName;
 339             this.toscaArtifactTypeSelected = this.operationToUpdate.implementation.artifactType;
 340             this.artifactVersion =
 341                 this.artifactVersion ? this.artifactVersion : this.operationToUpdate.implementation.artifactVersion;
 342             this.toscaArtifactTypeProperties = this.operationToUpdate.implementation.properties;
 343             this.artifactTypeProperties = this.convertArtifactsPropertiesToInput();
 344             this.enableAddArtifactImplementation = true;
 345         }
 346     }
 347
 348     toDropDownOption(val: string) {
 349         return { value : val, label: val };
 350     }
 351
 352     /**
 353      * Handles the input value change event.
 354      * @param changedInput the changed input
 355      */
 356     onInputValueChange(changedInput: InputOperationParameter) {
 357         if (changedInput.value instanceof Object) {
 358             changedInput.value = JSON.stringify(changedInput.value);
 359         }
 360         const inputOperationParameter = this.inputs.find(value => value.name == changedInput.name);
 361         inputOperationParameter.toscaFunction = null;
 362         inputOperationParameter.value = changedInput.value;
 363         inputOperationParameter.subPropertyToscaFunctions = changedInput.subPropertyToscaFunctions;
 364         if (changedInput.isToscaFunction()) {
 365             inputOperationParameter.toscaFunction = changedInput.toscaFunction;
 366             inputOperationParameter.value = changedInput.toscaFunction.buildValueString();
 367         }
 368     }
 369
 370     onArtifactPropertyValueChange(changedProperty: InputOperationParameter) {
 371         const property = this.toscaArtifactTypeProperties.find(artifactProperty => artifactProperty.name == changedProperty.name);
 372         if (changedProperty.value instanceof Object) {
 373             changedProperty.value = JSON.stringify(changedProperty.value);
 374         }
 375         property.toscaFunction = null;
 376         property.value = changedProperty.value;
 377         if (changedProperty.isToscaFunction()) {
 378             property.toscaFunction = changedProperty.toscaFunction;
 379             property.value = changedProperty.toscaFunction.buildValueString();
 380         }
 381     }
 382
 383     implementationPropsValidityChange(validImplementationProps: boolean) {
 384         this.validImplementationProps = validImplementationProps;
 385     }
 386
 387     /**
 388      * Handles the add input event.
 389      * @param input the input to add
 390      * @private
 391      */
 392     private addInput(input: InputOperationParameter) {
 393         this.operationToUpdate.inputs.listToscaDataDefinition.push(input);
 394         this.inputs = Array.from(this.operationToUpdate.inputs.listToscaDataDefinition);
 395     }
 396
 397     /**
 398      * Return a list with current input names.
 399      */
 400     collectInputNames() {
 401         return this.inputs.map((input) => input.name);
 402     }
 403
 404     /**
 405      * Handles the delete input event.
 406      * @param inputName the name of the input to be deleted
 407      */
 408     onInputDelete(inputName: string) {
 409         const currentInputs = this.operationToUpdate.inputs.listToscaDataDefinition;
 410         const input1 = currentInputs.find(value => value.name === inputName);
 411         const indexOfInput = currentInputs.indexOf(input1);
 412         if (indexOfInput === -1) {
 413             console.error(`Could not delete input '${inputName}'. Input not found.`);
 414             return;
 415         }
 416         currentInputs.splice(currentInputs.indexOf(input1), 1);
 417         this.inputs = Array.from(currentInputs);
 418     }
 419
 420     private convertArtifactsPropertiesToInput(): Array<InputOperationParameter> {
 421         if (!this.toscaArtifactTypeProperties) {
 422             return [];
 423         }
 424         const inputList: Array<InputOperationParameter> = [];
 425         this.toscaArtifactTypeProperties.forEach(property => {
 426             const input = new InputOperationParameter();
 427             input.name = property.name;
 428             input.type = property.type;
 429             input.schema = property.schema;
 430             input.toscaDefaultValue = property.defaultValue;
 431             input.value = property.value;
 432             input.toscaFunction = property.toscaFunction;
 433             inputList.push(input);
 434         });
 435         return inputList;
 436     }
 437
 438     onSelectInterface(dropDownOption: DropDownOption) {
 439         if (dropDownOption) {
 440             this.setInterfaceType(dropDownOption);
 441         } else {
 442             this.setInterfaceType(undefined);
 443         }
 444         this.setInterfaceOperation(undefined);
 445         this.interfaceOperationDropDown.selectOption({} as IDropDownOption);
 446         this.loadInterfaceTypeOperations();
 447     }
 448
 449     onSelectOperation(dropDownOption: DropDownOption) {
 450         if (this.selectedInterfaceType && dropDownOption) {
 451             this.setInterfaceOperation(dropDownOption);
 452         }
 453     }
 454
 455     private setInterfaceType(dropDownOption: DropDownOption) {
 456         this.selectedInterfaceType = dropDownOption ? dropDownOption : undefined;
 457         this.interfaceType = dropDownOption ? dropDownOption.value : undefined;
 458         this.operationToUpdate.interfaceType = dropDownOption ? dropDownOption.value : undefined;
 459         this.operationToUpdate.interfaceId = dropDownOption ? dropDownOption.value : undefined;
 460     }
 461
 462     private setInterfaceOperation(dropDownOption: DropDownOption) {
 463         this.operationToUpdate.name = dropDownOption ? dropDownOption.value : undefined;
 464         this.operationToUpdate.operationType = dropDownOption ? dropDownOption.value : undefined;
 465         this.selectedInterfaceOperation = dropDownOption ? dropDownOption : undefined;
 466     }
 467
 468     getExistingFilters(key: string) {
 469         if (this.operationToUpdate.milestones[key] && this.operationToUpdate.milestones[key].filters) {
 470             return this.operationToUpdate.milestones[key].filters
 471         }
 472         return undefined;
 473     }
 474
 475     filtersChangeEvent($event: any, milestone: string) {
 476         if ($event.valid) {
 477             if (this.invalidMilestones.indexOf(milestone) > -1) {
 478                 this.invalidMilestones.splice(this.invalidMilestones.indexOf(milestone), 1);
 479                 this.validMilestoneFilters = this.invalidMilestones.length < 1;
 480                 this.validMilestoneActivities = this.invalidMilestones.length < 1;
 481             }
 482             let operationMilestone = this.operationToUpdate.milestones[milestone];
 483             if (!operationMilestone) {
 484                 operationMilestone = new Milestone();
 485             }
 486             operationMilestone.filters = new class implements IFilterParameterList {
 487                 listToscaDataDefinition: Array<FilterParameter> = [];
 488             }
 489             let milestoneFilters = $event.filters;
 490             for (let filter of milestoneFilters) {
 491                 let filterParameter = new FilterParameter();
 492                 filterParameter.constraint = filter.constraint;
 493                 filterParameter.name = filter.name;
 494                 filterParameter.filterValue = filter.filterValue;
 495                 filterParameter.toscaFunction = filter.toscaFunction;
 496                 operationMilestone.filters.listToscaDataDefinition.push(filterParameter);
 497             }
 498             this.operationToUpdate.milestones[milestone] = operationMilestone;
 499         } else {
 500             if (this.invalidMilestones.indexOf(milestone) == -1) {
 501                 this.invalidMilestones.push(milestone);
 502             }
 503             this.validMilestoneFilters = false;
 504             this.validMilestoneActivities = false;
 505         }
 506     }
 507
 508     getExistingActivities(key: string) {
 509         if (
 510             this.operationToUpdate.milestones[key]
 511             && this.operationToUpdate.milestones[key].activities
 512             && this.operationToUpdate.milestones[key].activities.listToscaDataDefinition
 513             && this.operationToUpdate.milestones[key].activities.listToscaDataDefinition.length > 0
 514         ) {
 515             return this.operationToUpdate.milestones[key].activities
 516         }
 517         return undefined;
 518     }
 519
 520     activitiesChangeEvent($event: any, milestone: string) {
 521         if ($event.valid) {
 522             if (this.invalidMilestones.indexOf(milestone) > -1) {
 523                 this.invalidMilestones.splice(this.invalidMilestones.indexOf(milestone), 1);
 524                 this.validMilestoneActivities = this.invalidMilestones.length < 1;
 525                 this.validMilestoneFilters  = this.invalidMilestones.length < 1;
 526             }
 527             let operationMilestone = this.operationToUpdate.milestones[milestone];
 528             if (!operationMilestone) {
 529                 operationMilestone = new Milestone();
 530             }
 531             operationMilestone.activities = new class implements IActivityParameterList {
 532                 listToscaDataDefinition: Array<ActivityParameter> = [];
 533             }
 534             let milestoneActivities = $event.activities;
 535             for (let activity of milestoneActivities) {
 536                 let activityParameter = new ActivityParameter();
 537                 activityParameter.type = activity.type;
 538                 activityParameter.workflow = activity.workflow;
 539                 activityParameter.inputs = activity.inputs;
 540                 operationMilestone.activities.listToscaDataDefinition.push(activityParameter);
 541             }
 542             this.operationToUpdate.milestones[milestone] = operationMilestone;
 543         } else {
 544             if (this.invalidMilestones.indexOf(milestone) == -1) {
 545                 this.invalidMilestones.push(milestone);
 546             }
 547             this.validMilestoneActivities = false;
 548             this.validMilestoneFilters = false;
 549         }
 550     }
 551
 552     isActiveTab(title: string): boolean {
 553         if (this.activeTab) {
 554             return this.activeTab == title;
 555         }
 556         return this.milestones[0] == title;
 557     }
 558
 559     tabChanged = (event) => {
 560         this.activeTab = event.title;
 561       }
 562
 563     isInvalidActivity(title: string) {
 564         if (this.invalidMilestones.indexOf(title) > -1) {
 565             return "#cf2a2a";
 566         }
 567       }
 568 }
 569
 570 class DropDownOption implements IDropDownOption {
 571     value: string;
 572     label: string;
 573
 574     constructor(value: string, label?: string) {
 575         this.value = value;
 576         this.label = label || value;
 577     }
 578 }