void prepare() {
        this.destServiceName = namingControl.formatServiceName(destServiceName);
        this.destServiceInstanceName = namingControl.formatInstanceName(destServiceInstanceName);
        this.destEndpointName = namingControl.formatEndpointName(destServiceName, destEndpointName);
    }
Endpoint traffic source builder. Endpoint represents an entrance to expose logic.
Typically, it could be HTTP URI, gRPC service name, etc. for RPC, or a local method is required to be analyzed.

@since 9.0.0
oap-server/analyzer/agent-analyzer/src/main/java/org/apache/skywalking/oap/server/analyzer/provider/trace/parser/listener/EndpointSourceBuilder.java