# All files / src/app/ceph/nfs/nfs-list nfs-list.component.ts

84.81% Statements 67/79
68.42% Branches 26/38
66.67% Functions 16/24
85.33% Lines 64/75

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     import { Component, OnDestroy, OnInit, TemplateRef, ViewChild } from '@angular/core';

    import { I18n } from '@ngx-translate/i18n-polyfill';
    import * as _ from 'lodash';
    import { BsModalRef, BsModalService } from 'ngx-bootstrap/modal';
    import { Subscription } from 'rxjs';

    import { NfsService } from '../../../shared/api/nfs.service';
    import { CriticalConfirmationModalComponent } from '../../../shared/components/critical-confirmation-modal/critical-confirmation-modal.component';
    import { TableComponent } from '../../../shared/datatable/table/table.component';
    import { CellTemplate } from '../../../shared/enum/cell-template.enum';
    import { ViewCacheStatus } from '../../../shared/enum/view-cache-status.enum';
    import { CdTableAction } from '../../../shared/models/cd-table-action';
    import { CdTableColumn } from '../../../shared/models/cd-table-column';
    import { CdTableSelection } from '../../../shared/models/cd-table-selection';
    import { FinishedTask } from '../../../shared/models/finished-task';
    import { Permission } from '../../../shared/models/permissions';
    import { AuthStorageService } from '../../../shared/services/auth-storage.service';
    import { TaskListService } from '../../../shared/services/task-list.service';
    import { TaskWrapperService } from '../../../shared/services/task-wrapper.service';

    @Component({
      selector: 'cd-nfs-list',
      template: require('./nfs-list.component.html'),
      styles: [],
      providers: [TaskListService]
    })
    export class NfsListComponent implements OnInit, OnDestroy {
      @ViewChild('nfsState')
      nfsState: TemplateRef<any>;
      @ViewChild('nfsFsal')
      nfsFsal: TemplateRef<any>;

      @ViewChild('table')
      table: TableComponent;

      columns: CdTableColumn[];
      permission: Permission;
      selection = new CdTableSelection();
      summaryDataSubscription: Subscription;
      viewCacheStatus: any;
      exports: any[];
      tableActions: CdTableAction[];
      isDefaultCluster = false;

      modalRef: BsModalRef;

      builders = {
        'nfs/create': (metadata) => {
          return {
            path: metadata['path'],
            cluster_id: metadata['cluster_id'],
            fsal: metadata['fsal']
          };
        }
      };

      constructor(
        private authStorageService: AuthStorageService,
        private i18n: I18n,
        private modalService: BsModalService,
        private nfsService: NfsService,
        private taskListService: TaskListService,
        private taskWrapper: TaskWrapperService
      ) {
        this.permission = this.authStorageService.getPermissions().nfs;
        const getNfsUri = () =>
          this.selection.first() &&
          `${encodeURI(this.selection.first().cluster_id)}/${encodeURI(
            this.selection.first().export_id
          )}`;

        const addAction: CdTableAction = {
          permission: 'create',
          icon: 'fa-plus',
          routerLink: () => '/nfs/add',
          canBePrimary: (selection: CdTableSelection) => !selection.hasSingleSelection,
          name: this.i18n('Add')
        };

        const editAction: CdTableAction = {
          permission: 'update',
          icon: 'fa-pencil',
          routerLink: () => `/nfs/edit/${getNfsUri()}`,
          name: this.i18n('Edit')
        };

        const deleteAction: CdTableAction = {
          permission: 'delete',
          icon: 'fa-times',
          click: () => this.deleteNfsModal(),
          name: this.i18n('Delete')
        };

        this.tableActions = [addAction, editAction, deleteAction];
      }

      ngOnInit() {
        this.columns = [
          {
            name: this.i18n('Export'),
            prop: 'path',
            flexGrow: 2,
            cellTransformation: CellTemplate.executing
          },
          {
            name: this.i18n('Cluster'),
            prop: 'cluster_id',
            flexGrow: 2
          },
          {
            name: this.i18n('Daemons'),
            prop: 'daemons',
            flexGrow: 2
          },
          {
            name: this.i18n('Storage Backend'),
            prop: 'fsal',
            flexGrow: 2,
            cellTemplate: this.nfsFsal
          },
          {
            name: this.i18n('Access Type'),
            prop: 'access_type',
            flexGrow: 2
          }
        ];

        this.nfsService.daemon().subscribe(
          (daemons: any) => {
            const clusters = _(daemons)
              .map((daemon) => daemon.cluster_id)
              .uniq()
              .value();

            this.isDefaultCluster = clusters.length === 1 && clusters[0] === '_default_';
            this.columns[1].isHidden = this.isDefaultCluster;
            if (this.table) {
              this.table.updateColumns();
            }

            this.taskListService.init(
              () => this.nfsService.list(),
              (resp) => this.prepareResponse(resp),
              (exports) => (this.exports = exports),
              () => this.onFetchError(),
              this.taskFilter,
              this.itemFilter,
              this.builders
            );
          },
          () => {
            this.onFetchError();
          }
        );
      }

      ngOnDestroy() {
        if (this.summaryDataSubscription) {
          this.summaryDataSubscription.unsubscribe();
        }
      }

      prepareResponse(resp: any): any[] {
        let result = [];
        resp.forEach((nfs) => {
          nfs.id = `${nfs.cluster_id}:${nfs.export_id}`;
          nfs.state = 'LOADING';
          result = result.concat(nfs);
        });

        return result;
      }

      onFetchError() {
        this.table.reset(); // Disable loading indicator.
        this.viewCacheStatus = { status: ViewCacheStatus.ValueException };
      }

      itemFilter(entry, task) {
        return (
          entry.cluster_id === task.metadata['cluster_id'] &&
          entry.export_id === task.metadata['export_id']
        );
      }

      taskFilter(task) {
        return ['nfs/create', 'nfs/delete', 'nfs/edit'].includes(task.name);
      }

      updateSelection(selection: CdTableSelection) {
        this.selection = selection;
      }

      deleteNfsModal() {
        const cluster_id = this.selection.first().cluster_id;
        const export_id = this.selection.first().export_id;

        this.modalRef = this.modalService.show(CriticalConfirmationModalComponent, {
          initialState: {
            itemDescription: this.i18n('NFS'),
            submitActionObservable: () =>
              this.taskWrapper.wrapTaskAroundCall({
                task: new FinishedTask('nfs/delete', {
                  cluster_id: cluster_id,
                  export_id: export_id
                }),
                call: this.nfsService.delete(cluster_id, export_id)
              })
          }
        });
      }
    }