Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | 1x 1x 1x 1x 4x 4x 4x 4x | import { Logger } from "../../../logger";
import { IRequest } from "../../../server/request";
import { DataType } from "../../data/data-type";
import { Database } from "../../data/database";
import { DatabaseValue } from "../../data/database-value";
import { RedisToken } from "../../protocol/redis-token";
import { IRespCommand } from "../resp-command";
/**
* ### Available since 1.0.0.
* ### RANDOMKEY
*
* Return a random key from the currently selected database.
*
* ### Return value
* Bulk string reply: the random key, or nil when the database is empty.
*/
export class RandomKeyCommand extends IRespCommand {
public maxParams = 0
public minParams = 0
public name = "randomkey"
private logger: Logger = new Logger(module.id);
public execSync(request: IRequest, db: Database): RedisToken {
this.logger.debug(
`${request.getCommand()}.execute(%s)`,
...request.getParams()
);
this.logger.debug(`There are ${db.keys().length} keys in the database`);
const randomNumber: number = Math.floor(Math.random() * db.keys().length);
this.logger.debug(`Selected random number ${randomNumber}: ${db.keys()[randomNumber]}`);
return RedisToken.string(db.keys()[randomNumber]);
}
}
|