code: private void addPiece(String pc, String prefix, StringBuilder sb) {
          if (!pc.isEmpty()) {
              if (sb.length() > 0) {
                  sb.append(prefix);
              }
              
              sb.append(pc);
          }
      }
docs: Used to build a connection string for display.
  
  @param pc A connection string field.
  @param prefix The prefix to include if the field is not empty.
  @param sb String builder instance.