dld_backend/node_modules/mongodb/lib/explain.js
2025-10-30 12:13:02 +05:30

59 lines
2.0 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Explain = exports.ExplainVerbosity = void 0;
exports.validateExplainTimeoutOptions = validateExplainTimeoutOptions;
exports.decorateWithExplain = decorateWithExplain;
const error_1 = require("./error");
/** @public */
exports.ExplainVerbosity = Object.freeze({
queryPlanner: 'queryPlanner',
queryPlannerExtended: 'queryPlannerExtended',
executionStats: 'executionStats',
allPlansExecution: 'allPlansExecution'
});
/** @internal */
class Explain {
constructor(verbosity, maxTimeMS) {
if (typeof verbosity === 'boolean') {
this.verbosity = verbosity
? exports.ExplainVerbosity.allPlansExecution
: exports.ExplainVerbosity.queryPlanner;
}
else {
this.verbosity = verbosity;
}
this.maxTimeMS = maxTimeMS;
}
static fromOptions({ explain } = {}) {
if (explain == null)
return;
if (typeof explain === 'boolean' || typeof explain === 'string') {
return new Explain(explain);
}
const { verbosity, maxTimeMS } = explain;
return new Explain(verbosity, maxTimeMS);
}
}
exports.Explain = Explain;
function validateExplainTimeoutOptions(options, explain) {
const { maxTimeMS, timeoutMS } = options;
if (timeoutMS != null && (maxTimeMS != null || explain?.maxTimeMS != null)) {
throw new error_1.MongoAPIError('Cannot use maxTimeMS with timeoutMS for explain commands.');
}
}
/**
* Applies an explain to a given command.
* @internal
*
* @param command - the command on which to apply the explain
* @param options - the options containing the explain verbosity
*/
function decorateWithExplain(command, explain) {
const { verbosity, maxTimeMS } = explain;
const baseCommand = { explain: command, verbosity };
if (typeof maxTimeMS === 'number') {
baseCommand.maxTimeMS = maxTimeMS;
}
return baseCommand;
}
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