@aws-cdk/aws-dynamodb/lib/scalable-table-attribute.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ScalableTableAttribute = void 0;
const appscaling = require("@aws-cdk/aws-applicationautoscaling");
/**
 * A scalable table attribute
 */
class ScalableTableAttribute extends appscaling.BaseScalableAttribute {
    constructor() {
        super(...arguments);
        this.scalingPolicyCreated = false;
    }
    /**
     * Scale out or in based on time
     */
    scaleOnSchedule(id, action) {
        this.scalingPolicyCreated = true;
        super.doScaleOnSchedule(id, action);
    }
    /**
     * Scale out or in to keep utilization at a given level
     */
    scaleOnUtilization(props) {
        if (props.targetUtilizationPercent < 10 || props.targetUtilizationPercent > 90) {
            // eslint-disable-next-line max-len
            throw new RangeError(`targetUtilizationPercent for DynamoDB scaling must be between 10 and 90 percent, got: ${props.targetUtilizationPercent}`);
        }
        this.scalingPolicyCreated = true;
        const predefinedMetric = this.props.dimension.indexOf('ReadCapacity') === -1
            ? appscaling.PredefinedMetric.DYNAMODB_WRITE_CAPACITY_UTILIZATION
            : appscaling.PredefinedMetric.DYNAMODB_READ_CAPACITY_UTILIZATION;
        super.doScaleToTrackMetric('Tracking', {
            policyName: props.policyName,
            disableScaleIn: props.disableScaleIn,
            scaleInCooldown: props.scaleInCooldown,
            scaleOutCooldown: props.scaleOutCooldown,
            targetValue: props.targetUtilizationPercent,
            predefinedMetric,
        });
    }
    /** @internal */
    get _scalingPolicyCreated() {
        return this.scalingPolicyCreated;
    }
}
exports.ScalableTableAttribute = ScalableTableAttribute;
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