code: private void onNodeReport(final NodeReport nodeReport) {
  
      LOG.log(Level.FINE, "Send node descriptor: {0}", nodeReport);
  
      this.reefEventHandlers.onNodeDescriptor(NodeDescriptorEventImpl.newBuilder()
          .setIdentifier(nodeReport.getNodeId().toString())
          .setHostName(nodeReport.getNodeId().getHost())
          .setPort(nodeReport.getNodeId().getPort())
          .setMemorySize(nodeReport.getCapability().getMemory())
          .setRackName(nodeReport.getRackName())
          .build());
    }
docs: HELPER METHODS