# All files / src/app/shared/services rbd-configuration.service.ts

97.22% Statements 35/36
57.14% Branches 4/7
93.33% Functions 14/15
100% Lines 30/30

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     import { Injectable } from '@angular/core';

    import { I18n } from '@ngx-translate/i18n-polyfill';

    import {
      RbdConfigurationExtraField,
      RbdConfigurationSection,
      RbdConfigurationType
    } from '../models/configuration';
    import { ServicesModule } from './services.module';

    /**
     * Define here which options should be made available under which section heading.
     * The display name and description needs to be added manually as long as Ceph does not provide
     * this information.
     */
    @Injectable({
      providedIn: ServicesModule
    })
    export class RbdConfigurationService {
      readonly sections: RbdConfigurationSection[];

      constructor(private i18n: I18n) {
        this.sections = [
          {
            heading: this.i18n('Quality of Service'),
            class: 'quality-of-service',
            options: [
              {
                name: 'rbd_qos_bps_limit',
                displayName: this.i18n('BPS Limit'),
                description: this.i18n('The desired limit of IO bytes per second.'),
                type: RbdConfigurationType.bps
              },
              {
                name: 'rbd_qos_iops_limit',
                displayName: this.i18n('IOPS Limit'),
                description: this.i18n('The desired limit of IO operations per second.'),
                type: RbdConfigurationType.iops
              },
              {
                name: 'rbd_qos_read_bps_limit',
                displayName: this.i18n('Read BPS Limit'),
                description: this.i18n('The desired limit of read bytes per second.'),
                type: RbdConfigurationType.bps
              },
              {
                name: 'rbd_qos_read_iops_limit',
                displayName: this.i18n('Read IOPS Limit'),
                description: this.i18n('The desired limit of read operations per second.'),
                type: RbdConfigurationType.iops
              },
              {
                name: 'rbd_qos_write_bps_limit',
                displayName: this.i18n('Write BPS Limit'),
                description: this.i18n('The desired limit of write bytes per second.'),
                type: RbdConfigurationType.bps
              },
              {
                name: 'rbd_qos_write_iops_limit',
                displayName: this.i18n('Write IOPS Limit'),
                description: this.i18n('The desired limit of write operations per second.'),
                type: RbdConfigurationType.iops
              },
              {
                name: 'rbd_qos_bps_burst',
                displayName: this.i18n('BPS Burst'),
                description: this.i18n('The desired burst limit of IO bytes.'),
                type: RbdConfigurationType.bps
              },
              {
                name: 'rbd_qos_iops_burst',
                displayName: this.i18n('IOPS Burst'),
                description: this.i18n('The desired burst limit of IO operations.'),
                type: RbdConfigurationType.iops
              },
              {
                name: 'rbd_qos_read_bps_burst',
                displayName: this.i18n('Read BPS Burst'),
                description: this.i18n('The desired burst limit of read bytes.'),
                type: RbdConfigurationType.bps
              },
              {
                name: 'rbd_qos_read_iops_burst',
                displayName: this.i18n('Read IOPS Burst'),
                description: this.i18n('The desired burst limit of read operations.'),
                type: RbdConfigurationType.iops
              },
              {
                name: 'rbd_qos_write_bps_burst',
                displayName: this.i18n('Write BPS Burst'),
                description: this.i18n('The desired burst limit of write bytes.'),
                type: RbdConfigurationType.bps
              },
              {
                name: 'rbd_qos_write_iops_burst',
                displayName: this.i18n('Write IOPS Burst'),
                description: this.i18n('The desired burst limit of write operations.'),
                type: RbdConfigurationType.iops
              }
            ] as RbdConfigurationExtraField[]
          }
        ];
      }

      private static getOptionsFromSections(sections: RbdConfigurationSection[]) {
        return sections.map((section) => section.options).reduce((a, b) => a.concat(b));
      }

      private filterConfigOptionsByName(configName: string) {
        return RbdConfigurationService.getOptionsFromSections(this.sections).filter(
          (option) => option.name === configName
        );
      }

      private getOptionValueByName(configName: string, fieldName: string, EdefaultValue = '') {
        const configOptions = this.filterConfigOptionsByName(configName);
        return configOptions.length === 1 ? configOptions.pop()[fieldName] : defaultValue;
      }

      getWritableSections() {
        return this.sections.map((section) => {
          section.options = section.options.filter((o) => !o.readOnly);
          return section;
        });
      }

      getOptionFields() {
        return RbdConfigurationService.getOptionsFromSections(this.sections);
      }

      getWritableOptionFields() {
        return RbdConfigurationService.getOptionsFromSections(this.getWritableSections());
      }

      getOptionByName(optionName: string): RbdConfigurationExtraField {
        return this.filterConfigOptionsByName(optionName).pop();
      }

      getDisplayName(configName: string): string {
        return this.getOptionValueByName(configName, 'displayName');
      }

      getDescription(configName: string): string {
        return this.getOptionValueByName(configName, 'description');
      }
    }