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 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | 1x 1x 1x 1x 1x 4x 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.
* ### MGET key [key ...]
* Returns the values of all specified keys. For every key that does not hold a string value or
* does not exist, the special value nil is returned. Because of this, the operation never fails.
*
* ### Return value
* Array reply: list of values at the specified keys.
* ### Examples
* ```
* redis> SET key1 "Hello"
* "OK"
* redis> SET key2 "World"
* "OK"
* redis> MGET key1 key2 nonexisting
* 1) "Hello"
* 2) "World"
* 3) (nil)
* redis>
* ```
*/
export class MGetCommand extends IRespCommand {
dbDataType = DataType.STRING
maxParams = -1
minParams = 1
name = "mget"
private logger: Logger = new Logger(module.id);
public execSync(request: IRequest, db: Database): RedisToken {
this.logger.debug(
`${request.getCommand()}.execute(%s)`,
...request.getParams()
);
const results: RedisToken[] = [];
for (const key of request.getParams()) {
this.logger.debug(`Getting key ${key}`);
const dbValue: DatabaseValue = db.get(key);
if (dbValue) {
if (dbValue.getType() !== DataType.STRING) {
this.logger.debug(`Ignoring type ${dbValue.getType} for key ${key}`);
results.push(RedisToken.nullString());
} else {
this.logger.debug(`Saving ${key} value ${dbValue.getString()}`);
results.push(RedisToken.string(dbValue.getString()));
}
} else {
this.logger.debug(`Key ${key} does not exist`);
results.push(RedisToken.nullString());
}
}
return RedisToken.array(results);
}
}
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