private static boolean cardinality(Text t, List<Object> valueList) { final boolean result; final Cardinality value = Cardinality.parse(t); if (value == null) { result = false; } else { valueList.add(value); result = true; } return result; }
/** * Convert a value to an Oak markup representation. * * @param value The value to represent. * @param tb The buffer in which to write the markup. */ public void toMarkup(Object value, Text t) { if (value == null) { t.append("null"); } else { switch (this) { case z: case Z: case f: case F: case bool: t.append(value.toString()); break; case cardinality: ((Cardinality) value).toString(t); break; case text: escapeForOak((String) value, true, t); break; case identifier: t.append(value.toString()); break; case path: ((Path) value).toString(t); break; case datetime: t.append('@'); t.append(DateU.formatStandardDatetime((LocalDateTime) value)); break; case date: t.append('@'); t.append(DateU.formatStandardDate((LocalDate) value)); break; case time: t.append('@'); t.append(DateU.formatStandardTime((LocalTime) value)); break; case any: default: throw new UnexpectedException("asString: " + this); } } }
/** * Parse a string and set the value accordingly. * * @param <T> Type of object to parse * @param string The string to parse. May be null. The string should be in Oak markup so "a * string", `/Some/Path`, etc. * @return The parsed value. * @see #toString(List) * @throws ParsingException Thrown if the string cannot be parsed correctly. */ @SuppressWarnings("unchecked") public <T> T parse(@Nullable String string) throws ParsingException { final T result; assert string != null : "Null string"; if (string.equals("null")) { result = null; } else { switch (this) { case text: // "a string" try { result = (T) StringU.removeQuotes(string); } catch (final RuntimeException e) { throw new ParsingException("Missing quotes"); } break; case identifier: // Verify Identifier.parse(string); result = (T) string; break; case path: result = (T) Path.parse(string); if (result == null) { throw new ParsingException("Invalid path: " + string); } break; case bool: // Boolean.parse() is not strict enough if (string.equals("true")) { result = (T) Boolean.TRUE; } else if (string.equals("false")) { result = (T) Boolean.FALSE; } else { throw new ParsingException("Invalid boolean, should be (true/false): " + string); } break; case z: try { // Remove optional trailing 'z' final int length = string.length(); if (length > 1 && string.charAt(length - 1) == 'z') { result = (T) new Long(string.substring(0, length - 1)); } else { result = (T) new Long(string); } } catch (final NumberFormatException e) { throw new ParsingException("Invalid integer (Long): " + string, e); } break; case Z: try { // Remove trailing 'Z' final int end = string.length() - 1; if (end < 0 || string.charAt(end) != 'Z') { throw new ParsingException("Invalid number"); } result = (T) new Long(string.substring(0, end)); } catch (final NumberFormatException e) { throw new ParsingException("Invalid INTEGER (BigInteger): " + string, e); } break; case f: try { // Remove optional trailing 'f' final int length = string.length(); if (length > 1 && string.charAt(length - 1) == 'f') { result = (T) new Double(string.substring(0, length - 1)); } else { result = (T) new Double(string); } } catch (final NumberFormatException e) { throw new ParsingException("Invalid float (Double): " + string, e); } break; case F: try { // Remove trailing 'F' final int end = string.length() - 1; if (end < 0 || string.charAt(end) != 'F') { throw new ParsingException("Invalid number"); } result = (T) new Long(string.substring(0, end)); } catch (final NumberFormatException e) { throw new ParsingException("Invalid FLOAT (BigDecimal): " + string, e); } break; case cardinality: try { result = (T) Cardinality.newInstance(string); } catch (final Cardinality.Exception e) { throw new ParsingException("Invalid cardinality: " + string, e); } break; case date: if (string.length() == 0 || string.charAt(0) != '@') { throw new ParsingException("Invalid date, missing leading '@': " + string); } try { result = (T) DateU.parseStandardDate(string.substring(1)); } catch (final DateTimeParseException e) { throw new ParsingException("Invalid date: " + string); } break; case time: if (string.length() == 0 || string.charAt(0) != '@') { throw new ParsingException("Invalid time, missing leading '@': " + string); } try { result = (T) DateU.parseStandardDate(string.substring(1)); } catch (final DateTimeParseException e) { throw new ParsingException("Invalid time: " + string); } break; case datetime: if (string.length() == 0 || string.charAt(0) != '@') { throw new ParsingException("Invalid datetime, missing leading '@': " + string); } try { result = (T) DateU.parseStandardDate(string.substring(1)); } catch (final DateTimeParseException e) { throw new ParsingException("Invalid datetime: " + string); } break; case any: default: throw new UnexpectedException(string); } } return result; }