/** @module refer */
import { InternalException } from 'pip-services4-commons-node';
import { IContext } from '../context/IContext';
import { ContextResolver } from '../context';

/**
 * Error when required component dependency cannot be found.
 */
export class ReferenceException extends InternalException {

    /**
     * Creates an error instance and assigns its values.
     * 
     * @param trace_id    (optional) a unique transaction id to trace execution through call chain.
     * @param locator             the locator to find reference to dependent component.
     */
    public constructor(context: IContext, locator: any) {
        super(context != null ? ContextResolver.getTraceId(context) : null, "REF_ERROR", "Failed to obtain reference to " + locator);
        this.withDetails("locator", locator);
    }

}