@skybloxsystems/ticket-bot
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text/typescript
import { CommandOperation, CommandOperationOptions } from './command';
import { Aspect, defineAspects } from './operation';
import { MongoDBNamespace, Callback } from '../utils';
import type { Document } from '../bson';
import type { Server } from '../sdam/server';
import type { Db } from '../db';
import type { ClientSession } from '../sessions';
/** @public */
export interface ListDatabasesResult {
databases: ({ name: string; sizeOnDisk?: number; empty?: boolean } & Document)[];
totalSize?: number;
totalSizeMb?: number;
ok: 1 | 0;
}
/** @public */
export interface ListDatabasesOptions extends CommandOperationOptions {
/** A query predicate that determines which databases are listed */
filter?: Document;
/** A flag to indicate whether the command should return just the database names, or return both database names and size information */
nameOnly?: boolean;
/** A flag that determines which databases are returned based on the user privileges when access control is enabled */
authorizedDatabases?: boolean;
}
/** @internal */
export class ListDatabasesOperation extends CommandOperation<ListDatabasesResult> {
options: ListDatabasesOptions;
constructor(db: Db, options?: ListDatabasesOptions) {
super(db, options);
this.options = options ?? {};
this.ns = new MongoDBNamespace('admin', '$cmd');
}
execute(server: Server, session: ClientSession, callback: Callback<ListDatabasesResult>): void {
const cmd: Document = { listDatabases: 1 };
if (this.options.nameOnly) {
cmd.nameOnly = Number(cmd.nameOnly);
}
if (this.options.filter) {
cmd.filter = this.options.filter;
}
if (typeof this.options.authorizedDatabases === 'boolean') {
cmd.authorizedDatabases = this.options.authorizedDatabases;
}
super.executeCommand(server, session, cmd, callback);
}
}
defineAspects(ListDatabasesOperation, [Aspect.READ_OPERATION, Aspect.RETRYABLE]);