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

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     import { Component, 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 { PoolService } from '../../../shared/api/pool.service';
    import { CriticalConfirmationModalComponent } from '../../../shared/components/critical-confirmation-modal/critical-confirmation-modal.component';
    import { ActionLabelsI18n, URLVerbs } from '../../../shared/constants/app.constants';
    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 { ExecutingTask } from '../../../shared/models/executing-task';
    import { FinishedTask } from '../../../shared/models/finished-task';
    import { Permissions } from '../../../shared/models/permissions';
    import { DimlessPipe } from '../../../shared/pipes/dimless.pipe';
    import { AuthStorageService } from '../../../shared/services/auth-storage.service';
    import { TaskListService } from '../../../shared/services/task-list.service';
    import { TaskWrapperService } from '../../../shared/services/task-wrapper.service';
    import { URLBuilderService } from '../../../shared/services/url-builder.service';
    import { PgCategoryService } from '../../shared/pg-category.service';
    import { Pool } from '../pool';

    const BASE_URL = 'pool';

    @Component({
      selector: 'cd-pool-list',
      template: require('./pool-list.component.html'),
      providers: [
        TaskListService,
        { provide: URLBuilderService, useValue: new URLBuilderService(BASE_URL) }
      ],
      styles: []
    })
    export class PoolListComponent implements OnInit {
      @ViewChild(TableComponent)
      table: TableComponent;
      @ViewChild('poolUsageTpl')
      poolUsageTpl: TemplateRef<any>;

      @ViewChild('poolConfigurationSourceTpl')
      poolConfigurationSourceTpl: TemplateRef<any>;

      pools: Pool[] = [];
      columns: CdTableColumn[];
      selection = new CdTableSelection();
      modalRef: BsModalRef;
      executingTasks: ExecutingTask[] = [];
      permissions: Permissions;
      tableActions: CdTableAction[];
      viewCacheStatusList: any[];
      selectionCacheTiers: any[] = [];

      constructor(
        private poolService: PoolService,
        private taskWrapper: TaskWrapperService,
        private authStorageService: AuthStorageService,
        private taskListService: TaskListService,
        private modalService: BsModalService,
        private i18n: I18n,
        private pgCategoryService: PgCategoryService,
        private dimlessPipe: DimlessPipe,
        private urlBuilder: URLBuilderService,
        public actionLabels: ActionLabelsI18n
      ) {
        this.permissions = this.authStorageService.getPermissions();
        this.tableActions = [
          {
            permission: 'create',
            icon: 'fa-plus',
            routerLink: () => this.urlBuilder.getCreate(),
            name: this.actionLabels.CREATE
          },
          {
            permission: 'update',
            icon: 'fa-pencil',
            routerLink: () =>
              this.urlBuilder.getEdit(encodeURIComponent(this.selection.first().pool_name)),
            name: this.actionLabels.EDIT
          },
          {
            permission: 'delete',
            icon: 'fa-trash-o',
            click: () => this.deletePoolModal(),
            name: this.actionLabels.DELETE
          }
        ];
      }

      ngOnInit() {
        this.columns = [
          {
            prop: 'pool_name',
            name: this.i18n('Name'),
            flexGrow: 4,
            cellTransformation: CellTemplate.executing
          },
          {
            prop: 'type',
            name: this.i18n('Type'),
            flexGrow: 2
          },
          {
            prop: 'application_metadata',
            name: this.i18n('Applications'),
            flexGrow: 2
          },
          {
            prop: 'pg_status',
            name: this.i18n('PG Status'),
            flexGrow: 3,
            cellClass: ({ row, column, value }): any => {
              return this.getPgStatusCellClass(row, column, value);
            }
          },
          {
            prop: 'size',
            name: this.i18n('Replica Size'),
            flexGrow: 1,
            cellClass: 'text-right'
          },
          {
            prop: 'last_change',
            name: this.i18n('Last Change'),
            flexGrow: 1,
            cellClass: 'text-right'
          },
          {
            prop: 'erasure_code_profile',
            name: this.i18n('Erasure Coded Profile'),
            flexGrow: 2
          },
          {
            prop: 'crush_rule',
            name: this.i18n('Crush Ruleset'),
            flexGrow: 3
          },
          { name: this.i18n('Usage'), cellTemplate: this.poolUsageTpl, flexGrow: 3 },
          {
            prop: 'stats.rd_bytes.series',
            name: this.i18n('Read bytes'),
            cellTransformation: CellTemplate.sparkline,
            flexGrow: 3
          },
          {
            prop: 'stats.wr_bytes.series',
            name: this.i18n('Write bytes'),
            cellTransformation: CellTemplate.sparkline,
            flexGrow: 3
          },
          {
            prop: 'stats.rd.rate',
            name: this.i18n('Read ops'),
            flexGrow: 1,
            pipe: this.dimlessPipe,
            cellTransformation: CellTemplate.perSecond
          },
          {
            prop: 'stats.wr.rate',
            name: this.i18n('Write ops'),
            flexGrow: 1,
            pipe: this.dimlessPipe,
            cellTransformation: CellTemplate.perSecond
          }
        ];

        this.taskListService.init(
          () => this.poolService.getList(),
          undefined,
          (pools) => (this.pools = this.transformPoolsData(pools)),
          () => {
            this.table.reset(); // Disable loading indicator.
            this.viewCacheStatusList = [{ status: ViewCacheStatus.ValueException }];
          },
          (task) => task.name.startsWith(`${BASE_URL}/`),
          (pool, task) => task.metadata['pool_name'] === pool.pool_name,
          { default: (task: ExecutingTask) => new Pool(task.metadata['pool_name']) }
        );
      }

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

      deletePoolModal() {
        const name = this.selection.first().pool_name;
        this.modalRef = this.modalService.show(CriticalConfirmationModalComponent, {
          initialState: {
            itemDescription: 'Pool',
            submitActionObservable: () =>
              this.taskWrapper.wrapTaskAroundCall({
                task: new FinishedTask(`${BASE_URL}/${URLVerbs.DELETE}`, { pool_name: name }),
                call: this.poolService.delete(name)
              })
          }
        });
      }

      getPgStatusCellClass(_row, _column, value): object {
        return {
          'text-right': true,
          [`pg-${this.pgCategoryService.getTypeByStates(value)}`]: true
        };
      }

      transformPoolsData(pools: any) {
        const requiredStats = ['bytes_used', 'max_avail', 'rd_bytes', 'wr_bytes', 'rd', 'wr'];
        const emptyStat = { latest: 0, rate: 0, series: [] };

        _.forEach(pools, (pool: Pool) => {
          pool['pg_status'] = this.transformPgStatus(pool['pg_status']);
          const stats = {};
          _.forEach(requiredStats, (stat) => {
            stats[stat] = pool.stats && pool.stats[stat] ? pool.stats[stat] : emptyStat;
          });
          pool['stats'] = stats;

          ['rd_bytes', 'wr_bytes'].forEach((stat) => {
            pool.stats[stat].series = pool.stats[stat].series.map((point) => point[1]);
          });
          pool.cdIsBinary = true;
        });

        return pools;
      }

      transformPgStatus(pgStatus: any): string {
        const strings = [];
        _.forEach(pgStatus, (count, state) => {
          strings.push(`${count} ${state}`);
        });

        return strings.join(', ');
      }

      getPoolDetails(pool: object) {
        return _.omit(pool, ['cdExecuting', 'cdIsBinary']);
      }

      getSelectionTiers() {
        const cacheTierIds = this.selection.hasSingleSelection ? this.selection.first()['tiers'] : [];
        this.selectionCacheTiers = this.pools.filter((pool) => cacheTierIds.includes(pool.pool));
      }
    }