_shortenNamespace() {
			if (!this.sNamespace || this.sNamespace === "/") {
				return `[${this.sLayer}] /`;
			}

			var aSplittedNamespace = this.sNamespace.split("/");
			var sNamespaceDepth = aSplittedNamespace.length;
			if (sNamespaceDepth > 2) {
				return `[${this.sLayer}] .../${aSplittedNamespace[sNamespaceDepth - 2]}`;
			}

			return `[${this.sLayer}] /${this.sNamespace[sNamespaceDepth - 1]}`;
		}
Formatter to shorten namespaces with multiple hierarchies;
If the hierarchy has more than two levels only the first and last levels are shown.
@returns {string} - Shortened namespace for display
@private