public static void print()

in core/src/main/java/org/apache/calcite/util/Util.java [388:494]
105 lines of code
28 McCabe index (conditional complexity)

  public static void print(
      PrintWriter pw,
      @Nullable Object o,
      int indent) {
    if (o == null) {
      pw.print("null");
      return;
    }
    Class clazz = o.getClass();
    if (o instanceof String) {
      printJavaString(pw, (String) o, true);
    } else if (
        (clazz == Integer.class)
            || (clazz == Boolean.class)
            || (clazz == Character.class)
            || (clazz == Byte.class)
            || (clazz == Short.class)
            || (clazz == Long.class)
            || (clazz == Float.class)
            || (clazz == Double.class)
            || (clazz == Void.class)) {
      pw.print(o.toString());
    } else if (clazz.isArray()) {
      // o is an array, but we can't cast to Object[] because it may be
      // an array of primitives.
      Object[] a; // for debug
      if (o instanceof Object[]) {
        a = (Object[]) o;
        discard(a);
      }
      int n = Array.getLength(o);
      pw.print("{");
      for (int i = 0; i < n; i++) {
        if (i > 0) {
          pw.println(",");
        } else {
          pw.println();
        }
        for (int j = 0; j < indent; j++) {
          pw.print("\t");
        }
        print(
            pw,
            Array.get(o, i),
            indent + 1);
      }
      pw.print("}");
    } else if (o instanceof Iterator) {
      pw.print(clazz.getName());
      Iterator iter = (Iterator) o;
      pw.print(" {");
      int i = 0;
      while (iter.hasNext()) {
        if (i++ > 0) {
          pw.println(",");
        }
        print(
            pw,
            iter.next(),
            indent + 1);
      }
      pw.print("}");
    } else if (o instanceof Enumeration) {
      pw.print(clazz.getName());
      Enumeration e = (Enumeration) o;
      pw.print(" {");
      int i = 0;
      while (e.hasMoreElements()) {
        if (i++ > 0) {
          pw.println(",");
        }
        print(
            pw,
            e.nextElement(),
            indent + 1);
      }
      pw.print("}");
    } else {
      pw.print(clazz.getName());
      pw.print(" {");
      Field[] fields = clazz.getFields();
      int printed = 0;
      for (Field field : fields) {
        if (isStatic(field)) {
          continue;
        }
        if (printed++ > 0) {
          pw.println(",");
        } else {
          pw.println();
        }
        for (int j = 0; j < indent; j++) {
          pw.print("\t");
        }
        pw.print(field.getName());
        pw.print("=");
        Object val;
        try {
          val = field.get(o);
        } catch (IllegalAccessException e) {
          throw new RuntimeException(e);
        }
        print(pw, val, indent + 1);
      }
      pw.print("}");
    }
  }