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import autobind from 'autobind-decorator';
import Chart, { Obj } from '.';
import Instance from '../models/instance';
/**
* フェデレーションに関するチャート
*/
type FederationLog = {
instance: {
/**
* インスタンス数の合計
*/
total: number;
/**
* 増加インスタンス数
*/
inc: number;
/**
* 減少インスタンス数
*/
dec: number;
};
};
class FederationChart extends Chart<FederationLog> {
constructor() {
super('federation');
}
@autobind
protected async getTemplate(init: boolean, latest?: FederationLog): Promise<FederationLog> {
const [total] = init ? await Promise.all([
Instance.count({})
]) : [
latest ? latest.instance.total : 0
];
return {
instance: {
total: total,
inc: 0,
dec: 0
}
};
}
@autobind
public async update(isAdditional: boolean) {
const update: Obj = {};
update.total = isAdditional ? 1 : -1;
if (isAdditional) {
update.inc = 1;
} else {
update.dec = 1;
}
await this.inc({
instance: update
});
}
}
export default new FederationChart();
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