private void showResultSetJson()

in src/main/java/com/googlesource/gerrit/plugins/verifystatus/VerifyStatusQueryShell.java [424:502]
75 lines of code
17 McCabe index (conditional complexity)

  private void showResultSetJson(
      final ResultSet rs, boolean alreadyOnRow, long start, Function... show) throws SQLException {
    JsonArray collector = new JsonArray();
    final ResultSetMetaData meta = rs.getMetaData();
    final Function[] columnMap;
    if (show != null && 0 < show.length) {
      columnMap = show;

    } else {
      final int colCnt = meta.getColumnCount();
      columnMap = new Function[colCnt];
      for (int colId = 0; colId < colCnt; colId++) {
        final int p = colId + 1;
        final String name = meta.getColumnLabel(p);
        columnMap[colId] = new Identity(p, name);
      }
    }

    int rowCnt = 0;
    while (alreadyOnRow || rs.next()) {
      final JsonObject row = new JsonObject();
      final JsonObject cols = new JsonObject();
      for (Function function : columnMap) {
        String v = function.apply(rs);
        if (v == null) {
          continue;
        }
        cols.addProperty(function.name.toLowerCase(), v);
      }
      row.addProperty("type", "row");
      row.add("columns", cols);
      switch (outputFormat) {
        case JSON:
          println(row.toString());
          break;
        case JSON_SINGLE:
          collector.add(row);
          break;
        case PRETTY:
        default:
          final JsonObject obj = new JsonObject();
          obj.addProperty("type", "error");
          obj.addProperty("message", "Unsupported Json variant");
          println(obj.toString());
          return;
      }
      alreadyOnRow = false;
      rowCnt++;
    }

    JsonObject tail = null;
    if (start != 0) {
      tail = new JsonObject();
      tail.addProperty("type", "query-stats");
      tail.addProperty("rowCount", rowCnt);
      final long ms = TimeUtil.nowMs() - start;
      tail.addProperty("runTimeMilliseconds", ms);
    }

    switch (outputFormat) {
      case JSON:
        if (tail != null) {
          println(tail.toString());
        }
        break;
      case JSON_SINGLE:
        if (tail != null) {
          collector.add(tail);
        }
        println(collector.toString());
        break;
      case PRETTY:
      default:
        final JsonObject obj = new JsonObject();
        obj.addProperty("type", "error");
        obj.addProperty("message", "Unsupported Json variant");
        println(obj.toString());
    }
  }