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| 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 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | 343x 343x 343x 343x 2964940x 2964940x 2964940x 2964940x 2964940x 2964940x 26963571x 26963571x 8343274x 18620297x 3804839x 2798523x 1470887x 343x 4637x 4637x 4637x 4637x | import { type BSONSerializeOptions, type Document, resolveBSONOptions } from '../bson';
import { type Abortable } from '../mongo_types';
import { ReadPreference, type ReadPreferenceLike } from '../read_preference';
import type { Server } from '../sdam/server';
import type { ClientSession } from '../sessions';
import { type TimeoutContext } from '../timeout';
import type { MongoDBNamespace } from '../utils';
export const Aspect = {
READ_OPERATION: Symbol('READ_OPERATION'),
WRITE_OPERATION: Symbol('WRITE_OPERATION'),
RETRYABLE: Symbol('RETRYABLE'),
EXPLAINABLE: Symbol('EXPLAINABLE'),
SKIP_COLLATION: Symbol('SKIP_COLLATION'),
CURSOR_CREATING: Symbol('CURSOR_CREATING'),
MUST_SELECT_SAME_SERVER: Symbol('MUST_SELECT_SAME_SERVER'),
COMMAND_BATCHING: Symbol('COMMAND_BATCHING')
} as const;
/** @public */
export type Hint = string | Document;
/** @public */
export interface OperationOptions extends BSONSerializeOptions {
/** Specify ClientSession for this command */
session?: ClientSession;
willRetryWrite?: boolean;
/** The preferred read preference (ReadPreference.primary, ReadPreference.primary_preferred, ReadPreference.secondary, ReadPreference.secondary_preferred, ReadPreference.nearest). */
readPreference?: ReadPreferenceLike;
/** @internal Hints to `executeOperation` that this operation should not unpin on an ended transaction */
bypassPinningCheck?: boolean;
omitReadPreference?: boolean;
/** @internal Hint to `executeOperation` to omit maxTimeMS */
omitMaxTimeMS?: boolean;
/**
* @experimental
* Specifies the time an operation will run until it throws a timeout error
*/
timeoutMS?: number;
}
/**
* This class acts as a parent class for any operation and is responsible for setting this.options,
* as well as setting and getting a session.
* Additionally, this class implements `hasAspect`, which determines whether an operation has
* a specific aspect.
* @internal
*/
export abstract class AbstractOperation<TResult = any> {
ns!: MongoDBNamespace;
readPreference: ReadPreference;
server!: Server;
bypassPinningCheck: boolean;
trySecondaryWrite: boolean;
// BSON serialization options
bsonOptions?: BSONSerializeOptions;
options: OperationOptions & Abortable;
/** Specifies the time an operation will run until it throws a timeout error. */
timeoutMS?: number;
private _session: ClientSession | undefined;
static aspects?: Set<symbol>;
constructor(options: OperationOptions & Abortable = {}) {
this.readPreference = this.hasAspect(Aspect.WRITE_OPERATION)
? ReadPreference.primary
: (ReadPreference.fromOptions(options) ?? ReadPreference.primary);
// Pull the BSON serialize options from the already-resolved options
this.bsonOptions = resolveBSONOptions(options);
this._session = options.session != null ? options.session : undefined;
this.options = options;
this.bypassPinningCheck = !!options.bypassPinningCheck;
this.trySecondaryWrite = false;
}
/** Must match the first key of the command object sent to the server.
Command name should be stateless (should not use 'this' keyword) */
abstract get commandName(): string;
abstract execute(
server: Server,
session: ClientSession | undefined,
timeoutContext: TimeoutContext
): Promise<TResult>;
hasAspect(aspect: symbol): boolean {
const ctor = this.constructor as { aspects?: Set<symbol> };
if (ctor.aspects == null) {
return false;
}
return ctor.aspects.has(aspect);
}
// Make sure the session is not writable from outside this class.
get session(): ClientSession | undefined {
return this._session;
}
clearSession() {
this._session = undefined;
}
resetBatch(): boolean {
return true;
}
get canRetryRead(): boolean {
return this.hasAspect(Aspect.RETRYABLE) && this.hasAspect(Aspect.READ_OPERATION);
}
get canRetryWrite(): boolean {
return this.hasAspect(Aspect.RETRYABLE) && this.hasAspect(Aspect.WRITE_OPERATION);
}
}
export function defineAspects(
operation: { aspects?: Set<symbol> },
aspects: symbol | symbol[] | Set<symbol>
): Set<symbol> {
Iif (!Array.isArray(aspects) && !(aspects instanceof Set)) {
aspects = [aspects];
}
aspects = new Set(aspects);
Object.defineProperty(operation, 'aspects', {
value: aspects,
writable: false
});
return aspects;
}
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