@loglayer/context-manager-linked/dist/index.js

Context manager for loglayer that keeps context between parent and all children.

//#region src/LinkedContextManager.ts
/**
* A context manager that keeps context data synchronized between parent and all children (bi-directional).
*/
var LinkedContextManager = class LinkedContextManager {
	contextContainer = {
		data: {},
		hasContext: false
	};
	/**
	* Sets the context data to be included with every log entry. Set to `undefined` to clear the context data.
	*/
	setContext(context) {
		if (!context) {
			for (const key in this.contextContainer.data) if (Object.hasOwn(this.contextContainer.data, key)) delete this.contextContainer.data[key];
			this.contextContainer.hasContext = false;
			return;
		}
		Object.assign(this.contextContainer.data, context);
		this.contextContainer.hasContext = true;
	}
	/**
	* Appends context data to the existing context data.
	*/
	appendContext(context) {
		Object.assign(this.contextContainer.data, context);
		this.contextContainer.hasContext = true;
	}
	/**
	* Returns the context data to be included with every log entry.
	*/
	getContext() {
		return this.contextContainer.data;
	}
	/**
	* Returns true if context data is present.
	*/
	hasContextData() {
		return this.contextContainer.hasContext;
	}
	/**
	* Clears the context data. If keys are provided, only those keys will be removed.
	* If no keys are provided, all context data will be cleared.
	*/
	clearContext(keys) {
		if (keys === void 0) {
			for (const key in this.contextContainer.data) if (Object.hasOwn(this.contextContainer.data, key)) delete this.contextContainer.data[key];
			this.contextContainer.hasContext = false;
			return;
		}
		const keysToRemove = Array.isArray(keys) ? keys : [keys];
		for (const key of keysToRemove) delete this.contextContainer.data[key];
		this.contextContainer.hasContext = Object.keys(this.contextContainer.data).length > 0;
	}
	/**
	* Links the child context manager's context to be the same as the parent context manager's context.
	*/
	onChildLoggerCreated({ parentContextManager, childContextManager }) {
		if (childContextManager instanceof LinkedContextManager) childContextManager.contextContainer = this.contextContainer;
		else childContextManager.setContext(this.getContext());
	}
	/**
	* Creates a new instance of the context manager that shares the same context data.
	* The clone maintains a bi-directional link with the original context manager.
	*/
	clone() {
		const clone = new LinkedContextManager();
		clone.contextContainer = this.contextContainer;
		return clone;
	}
};

//#endregion
export { LinkedContextManager };