pip-services4-components-node
Version:
Portable Component Model in Node.js / ES2017
51 lines • 1.69 kB
JavaScript
;
/** @module context */
Object.defineProperty(exports, "__esModule", { value: true });
exports.ContextResolver = void 0;
/**
* Context resolver that processes context and extracts values from there.
*
* @see [[IContext]]
*/
class ContextResolver {
/**
* Extracts trace id from execution context.
*
* @param context execution context to trace execution through call chain.
* @returns a trace id or <code>null</code> if it is not defined.
* @see [[IContext]]
*/
static getTraceId(context) {
if (context == null)
return null;
const traceId = context.get("trace_id") || context.get("traceId");
return traceId != null ? "" + traceId : null;
}
/**
* Extracts client name from execution context.
*
* @param context execution context to trace execution through call chain.
* @returns a client name or <code>null</code> if it is not defined.
* @see [[IContext]]
*/
static getClient(context) {
if (context == null)
return null;
const client = context.get("client");
return client != null ? "" + client : null;
}
/**
* Extracts user name (identifier) from execution context.
*
* @param context execution context to trace execution through call chain.
* @returns a user reference or <code>null</code> if it is not defined.
* @see [[IContext]]
*/
static getUser(context) {
if (context == null)
return null;
return context.get("user");
}
}
exports.ContextResolver = ContextResolver;
//# sourceMappingURL=ContextResolver.js.map