Feature 10910: Migration of Openstack based VM instances
[osm/NG-UI.git] / src / app / utilities / vm-migration / VmMigrationComponent.ts
diff --git a/src/app/utilities/vm-migration/VmMigrationComponent.ts b/src/app/utilities/vm-migration/VmMigrationComponent.ts
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+/*
+ Copyright 2020 TATA ELXSI
+
+ Licensed under the Apache License, Version 2.0 (the 'License');
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+ Author: SANDHYA JS (sandhya.j@tataelxsi.co.in)
+*/
+/**
+ * @file Vm Migration Component
+ */
+import { HttpHeaders } from '@angular/common/http';
+import { Component, Injector, Input, OnInit } from '@angular/core';
+import { AbstractControl, FormBuilder, FormGroup, Validators } from '@angular/forms';
+import { Router } from '@angular/router';
+import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap';
+import { APIURLHEADER, ERRORDATA, MODALCLOSERESPONSEDATA, URLPARAMS } from 'CommonModel';
+import { environment } from 'environment';
+import { VMMIGRATION } from 'NSInstanceModel';
+import { RestService } from 'RestService';
+import { SharedService } from 'SharedService';
+import { isNullOrUndefined } from 'util';
+import { VDUR, VNFInstanceDetails } from 'VNFInstanceModel';
+
+/**
+ * Creating component
+ * @Component takes VmMigrationComponent.html as template url
+ */
+@Component({
+    selector: 'app-vm-migration',
+    templateUrl: './VmMigrationComponent.html',
+    styleUrls: ['./VmMigrationComponent.scss']
+})
+export class VmMigrationComponent implements OnInit {
+    /** To inject services @public */
+    public injector: Injector;
+    /** Instance for active modal service @public */
+    public activeModal: NgbActiveModal;
+    /** Check the loading results @public */
+    public isLoadingResults: Boolean = false;
+    /** Give the message for the loading @public */
+    public message: string = 'PLEASEWAIT';
+    /** FormGroup instance added to the form @ html @public */
+    public migrationForm: FormGroup;
+    /** Items for the vdu-Id and count-index @public */
+    public vdu: {}[];
+    /** Selected VNFInstanceId @public */
+    public selectedvnfId: string = '';
+    /** Array holds VNFR Data filtered with nsr ID @public */
+    public nsIdFilteredData: {}[] = [];
+    /** Items for the member types @public */
+    public memberTypes: {}[];
+    /** Contains MemberVNFIndex values @public */
+    public memberVnfIndex: {}[] = [];
+    /** Contains vnfInstanceId of the selected MemberVnfIndex  @public */
+    public instanceId: string;
+    /** Form valid on submit trigger @public */
+    public submitted: boolean = false;
+    /** Input contains component objects @private */
+    @Input() private params: URLPARAMS;
+    /** FormBuilder instance added to the formBuilder @private */
+    private formBuilder: FormBuilder;
+    /** Instance of the rest service @private */
+    private restService: RestService;
+    /** Controls the header form @private */
+    private headers: HttpHeaders;
+    /** Contains all methods related to shared @private */
+    private sharedService: SharedService;
+    /** Holds the instance of AuthService class of type AuthService @private */
+    private router: Router;
+    constructor(injector: Injector) {
+        this.injector = injector;
+        this.restService = this.injector.get(RestService);
+        this.activeModal = this.injector.get(NgbActiveModal);
+        this.formBuilder = this.injector.get(FormBuilder);
+        this.sharedService = this.injector.get(SharedService);
+        this.router = this.injector.get(Router);
+    }
+    /** convenience getter for easy access to form fields */
+    get f(): FormGroup['controls'] { return this.migrationForm.controls; }
+    /**
+     * Lifecyle Hooks the trigger before component is instantiate
+     */
+    public ngOnInit(): void {
+        this.initializeForm();
+        this.getMemberVnfIndex();
+        this.headers = new HttpHeaders({
+            'Content-Type': 'application/json',
+            Accept: 'application/json',
+            'Cache-Control': 'no-cache, no-store, must-revalidate, max-age=0'
+        });
+    }
+    /** Initialize Migration Forms @public */
+    public initializeForm(): void {
+        this.migrationForm = this.formBuilder.group({
+            memberVnfIndex: [null, [Validators.required]],
+            vduId: [null],
+            countIndex: [null],
+            migrateToHost: [null]
+        });
+    }
+
+    /** Getting MemberVnfIndex using NSDescriptor API @public */
+    public getMemberVnfIndex(): void {
+        const vnfInstanceData: {}[] = [];
+        this.isLoadingResults = true;
+        this.restService.getResource(environment.VNFINSTANCES_URL).subscribe((vnfInstancesData: VNFInstanceDetails[]): void => {
+            vnfInstancesData.forEach((vnfData: VNFInstanceDetails): void => {
+                const vnfDataObj: {} =
+                {
+                    VNFD: vnfData['vnfd-ref'],
+                    VNFInstanceId: vnfData._id,
+                    MemberIndex: vnfData['member-vnf-index-ref'],
+                    NS: vnfData['nsr-id-ref']
+                };
+                vnfInstanceData.push(vnfDataObj);
+            });
+            const nsId: string = 'NS';
+            this.nsIdFilteredData = vnfInstanceData.filter((vnfdData: {}[]): boolean => vnfdData[nsId] === this.params.id);
+            this.nsIdFilteredData.forEach((resVNF: {}[]): void => {
+                const memberIndex: string = 'MemberIndex';
+                const vnfinstanceID: string = 'VNFInstanceId';
+                const assignMemberIndex: {} = {
+                    id: resVNF[memberIndex],
+                    vnfinstanceId: resVNF[vnfinstanceID]
+                };
+                this.memberVnfIndex.push(assignMemberIndex);
+            });
+            this.memberTypes = this.memberVnfIndex;
+            this.isLoadingResults = false;
+        }, (error: ERRORDATA): void => {
+            this.restService.handleError(error, 'get');
+            this.isLoadingResults = false;
+        });
+    }
+
+    /** Getting vdu-id & count-index from VNFInstance API */
+    public getVdu(id: string): void {
+        this.vdu = [];
+        const vnfInstanceData: {}[] = [];
+        this.instanceId = id;
+        this.getFormControl('vduId').setValue(null);
+        this.getFormControl('countIndex').setValue(null);
+        if (!isNullOrUndefined(id)) {
+            this.restService.getResource(environment.VNFINSTANCES_URL + '/' + id).
+                subscribe((vnfInstanceDetail: VNFInstanceDetails[]): void => {
+                    this.selectedvnfId = vnfInstanceDetail['vnfd-ref'];
+                    const VDU: string = 'vdur';
+                    if (vnfInstanceDetail[VDU] !== undefined) {
+                        vnfInstanceDetail[VDU].forEach((vdu: VDUR): void => {
+                            const vnfInstanceDataObj: {} =
+                            {
+                                'count-index': vdu['count-index'],
+                                VDU: vdu['vdu-id-ref']
+
+                            };
+                            vnfInstanceData.push(vnfInstanceDataObj);
+                        });
+                        this.vdu = vnfInstanceData;
+                    }
+                }, (error: ERRORDATA): void => {
+                    this.restService.handleError(error, 'get');
+                    this.isLoadingResults = false;
+                });
+        }
+    }
+
+    /** Trigger VM Migration on submit */
+    public triggerMigration(): void {
+        this.submitted = true;
+        this.sharedService.cleanForm(this.migrationForm);
+        if (this.migrationForm.invalid) { return; } // Proceed, onces form is valid
+        const migrationPayload: VMMIGRATION = {
+            lcmOperationType: 'migrate',
+            vnfInstanceId: this.instanceId
+        };
+        if (!isNullOrUndefined(this.migrationForm.value.migrateToHost)) {
+            migrationPayload.migrateToHost = this.migrationForm.value.migrateToHost;
+        }
+        if (!isNullOrUndefined(this.migrationForm.value.vduId) && !isNullOrUndefined(this.migrationForm.value.countIndex)) {
+            migrationPayload.vdu = {
+                vduId: this.migrationForm.value.vduId,
+                vduCountIndex: this.migrationForm.value.countIndex
+            };
+        } else if (!isNullOrUndefined(this.migrationForm.value.vduId)) {
+            migrationPayload.vdu = {
+                vduId: this.migrationForm.value.vduId
+            };
+        } else if (!isNullOrUndefined(this.migrationForm.value.countIndex)) {
+            migrationPayload.vdu = {
+                vduCountIndex: this.migrationForm.value.countIndex
+            };
+        }
+        this.migrationInitialization(migrationPayload);
+
+    }
+
+    /** Initialize the Vm Migration operation @public */
+    public migrationInitialization(migrationPayload: object): void {
+        this.isLoadingResults = true;
+        const apiURLHeader: APIURLHEADER = {
+            url: environment.NSDINSTANCES_URL + '/' + this.params.id + '/migrate',
+            httpOptions: { headers: this.headers }
+        };
+        const modalData: MODALCLOSERESPONSEDATA = {
+            message: 'Done'
+        };
+        this.restService.postResource(apiURLHeader, migrationPayload).subscribe((result: {}): void => {
+            this.activeModal.close(modalData);
+            this.router.navigate(['/instances/ns/history-operations/' + this.params.id]).catch();
+        }, (error: ERRORDATA): void => {
+            this.restService.handleError(error, 'post');
+            this.isLoadingResults = false;
+        });
+    }
+
+    /** Used to get the AbstractControl of controlName passed @private */
+    private getFormControl(controlName: string): AbstractControl {
+        return this.migrationForm.controls[controlName];
+    }
+}