map)
- throws NotSerializableException, IOException {
-
- Field[] fields = new Field[] {};
- String type = "";
- String id = "NULL";
-
- if (o != null) {
- int hash = System.identityHashCode(o);
- fields = o.getClass().getDeclaredFields();
- type = o.getClass().getCanonicalName();
- if (type == null) {
- // Anonymous inner classes support
- type = o.getClass().getName();
- }
- id = Integer.toString(hash);
- if (map.containsKey(hash)) {
- fields = new Field[] {};
- } else {
- map.put(hash, o);
- }
- }
-
- write(out, "{\nREF ");
- write(out, type);
- write(out, "@");
- write(out, id);
- write(out, ":");
-
- if (!encode(out, o)) { // check if direct value
- try {
- for (Field field : fields) {
- field.setAccessible(true);
-
- if (field.getName().startsWith("this$")
- || field.isSynthetic()
- || (field.getModifiers() & Modifier.STATIC) == Modifier.STATIC) {
- // Do not keep this links of nested classes
- // Do not keep synthetic fields
- // Do not keep final fields
- continue;
- }
-
- write(out, "\n^");
- write(out, field.getName());
- write(out, ":");
-
- Object value = field.get(o);
-
- if (!encode(out, value)) {
- write(out, "\n");
- append(out, value, map);
- }
- }
- } catch (IllegalArgumentException e) {
- e.printStackTrace(); // should not happen (see
- // setAccessible)
- } catch (IllegalAccessException e) {
- e.printStackTrace(); // should not happen (see
- // setAccessible)
- }
-
- write(out, "\n}");
- }
- }
-
- /**
- * Encode the object into the given {@link OutputStream} if possible and if
- * supported.
- *
- * A supported object in this context means an object we can directly
- * encode, like an Integer or a String. Custom objects and arrays are also
- * considered supported, but compound objects are not supported here.
- *
- * For compound objects, you should use {@link Exporter}.
- *
- * @param out
- * the {@link OutputStream} to append to
- * @param value
- * the object to encode (can be NULL, which will be encoded)
- *
- * @return TRUE if success, FALSE if not (the content of the
- * {@link OutputStream} won't be changed in case of failure)
- *
- * @throws IOException
- * in case of I/O error
- */
- static boolean encode(OutputStream out, Object value) throws IOException {
- if (value == null) {
- write(out, "NULL");
- } else if (value.getClass().getSimpleName().endsWith("[]")) {
- // Simple name does support [] suffix and do not return NULL for
- // inner anonymous classes
- customTypes.get("[]").encode(out, value);
- } else if (customTypes.containsKey(value.getClass().getCanonicalName())) {
- customTypes.get(value.getClass().getCanonicalName())//
- .encode(out, value);
- } else if (value instanceof String) {
- encodeString(out, (String) value);
- } else if (value instanceof Boolean) {
- write(out, value);
- } else if (value instanceof Byte) {
- write(out, "b");
- write(out, value);
- } else if (value instanceof Character) {
- write(out, "c");
- encodeString(out, "" + value);
- } else if (value instanceof Short) {
- write(out, "s");
- write(out, value);
- } else if (value instanceof Integer) {
- write(out, "i");
- write(out, value);
- } else if (value instanceof Long) {
- write(out, "l");
- write(out, value);
- } else if (value instanceof Float) {
- write(out, "f");
- write(out, value);
- } else if (value instanceof Double) {
- write(out, "d");
- write(out, value);
- } else if (value instanceof Enum) {
- write(out, "E:");
- String type = value.getClass().getCanonicalName();
- write(out, type);
- write(out, ".");
- write(out, ((Enum) value).name());
- write(out, ";");
- } else {
- return false;
- }
-
- return true;
- }
-
- static boolean isDirectValue(BufferedInputStream encodedValue)
- throws IOException {
- if (CustomSerializer.isCustom(encodedValue)) {
- return false;
- }
-
- for (String fullValue : new String[] { "NULL", "null", "true", "false" }) {
- if (encodedValue.is(fullValue)) {
- return true;
- }
- }
-
- for (String prefix : new String[] { "c\"", "\"", "b", "s", "i", "l",
- "f", "d", "E:" }) {
- if (encodedValue.startsWith(prefix)) {
- return true;
- }
- }
-
- return false;
- }
-
- /**
- * Decode the data into an equivalent supported source object.
- *
- * A supported object in this context means an object we can directly
- * encode, like an Integer or a String (see
- * {@link SerialUtils#decode(String)}.
- *
- * Custom objects and arrays are also considered supported here, but
- * compound objects are not.
- *
- * For compound objects, you should use {@link Importer}.
- *
- * @param encodedValue
- * the encoded data, cannot be NULL
- *
- * @return the object (can be NULL for NULL encoded values)
- *
- * @throws IOException
- * if the content cannot be converted
- */
- static Object decode(BufferedInputStream encodedValue) throws IOException {
- if (CustomSerializer.isCustom(encodedValue)) {
- // custom^TYPE^ENCODED_VALUE
- NextableInputStream content = new NextableInputStream(encodedValue,
- new NextableInputStreamStep('^'));
- try {
- content.next();
- @SuppressWarnings("unused")
- String custom = IOUtils.readSmallStream(content);
- content.next();
- String type = IOUtils.readSmallStream(content);
- content.nextAll();
- if (customTypes.containsKey(type)) {
- return customTypes.get(type).decode(content);
- }
- content.end();
- throw new IOException("Unknown custom type: " + type);
- } finally {
- content.close(false);
- encodedValue.end();
- }
- }
-
- String encodedString = IOUtils.readSmallStream(encodedValue);
- return decode(encodedString);
- }
-
- /**
- * Decode the data into an equivalent supported source object.
- *
- * A supported object in this context means an object we can directly
- * encode, like an Integer or a String.
- *
- * For custom objects and arrays, you should use
- * {@link SerialUtils#decode(InputStream)} or directly {@link Importer}.
- *
- * For compound objects, you should use {@link Importer}.
- *
- * @param encodedValue
- * the encoded data, cannot be NULL
- *
- * @return the object (can be NULL for NULL encoded values)
- *
- * @throws IOException
- * if the content cannot be converted
- */
- static Object decode(String encodedValue) throws IOException {
- try {
- String cut = "";
- if (encodedValue.length() > 1) {
- cut = encodedValue.substring(1);
- }
-
- if (encodedValue.equals("NULL") || encodedValue.equals("null")) {
- return null;
- } else if (encodedValue.startsWith("\"")) {
- return decodeString(encodedValue);
- } else if (encodedValue.equals("true")) {
- return true;
- } else if (encodedValue.equals("false")) {
- return false;
- } else if (encodedValue.startsWith("b")) {
- return Byte.parseByte(cut);
- } else if (encodedValue.startsWith("c")) {
- return decodeString(cut).charAt(0);
- } else if (encodedValue.startsWith("s")) {
- return Short.parseShort(cut);
- } else if (encodedValue.startsWith("l")) {
- return Long.parseLong(cut);
- } else if (encodedValue.startsWith("f")) {
- return Float.parseFloat(cut);
- } else if (encodedValue.startsWith("d")) {
- return Double.parseDouble(cut);
- } else if (encodedValue.startsWith("i")) {
- return Integer.parseInt(cut);
- } else if (encodedValue.startsWith("E:")) {
- cut = cut.substring(1);
- return decodeEnum(cut);
- } else {
- throw new IOException("Unrecognized value: " + encodedValue);
- }
- } catch (Exception e) {
- if (e instanceof IOException) {
- throw (IOException) e;
- }
- throw new IOException(e.getMessage(), e);
- }
- }
-
- /**
- * Write the given {@link String} into the given {@link OutputStream} in
- * UTF-8.
- *
- * @param out
- * the {@link OutputStream}
- * @param data
- * the data to write, cannot be NULL
- *
- * @throws IOException
- * in case of I/O error
- */
- static void write(OutputStream out, Object data) throws IOException {
- out.write(StringUtils.getBytes(data.toString()));
- }
-
- /**
- * Return the corresponding class or throw an {@link Exception} if it
- * cannot.
- *
- * @param type
- * the class name to look for
- *
- * @return the class (will never be NULL)
- *
- * @throws ClassNotFoundException
- * if the class cannot be found
- * @throws NoSuchMethodException
- * if the class cannot be created (usually because it or its
- * enclosing class doesn't have an empty constructor)
- */
- static private Class getClass(String type)
- throws ClassNotFoundException, NoSuchMethodException {
- Class clazz = null;
- try {
- clazz = Class.forName(type);
- } catch (ClassNotFoundException e) {
- int pos = type.length();
- pos = type.lastIndexOf(".", pos);
- if (pos >= 0) {
- String parentType = type.substring(0, pos);
- String nestedType = type.substring(pos + 1);
- Class javaParent = null;
- try {
- javaParent = getClass(parentType);
- parentType = javaParent.getName();
- clazz = Class.forName(parentType + "$" + nestedType);
- } catch (Exception ee) {
- }
-
- if (javaParent == null) {
- throw new NoSuchMethodException(
- "Class not found: "
- + type
- + " (the enclosing class cannot be created: maybe it doesn't have an empty constructor?)");
- }
- }
- }
-
- if (clazz == null) {
- throw new ClassNotFoundException("Class not found: " + type);
- }
-
- return clazz;
- }
-
- @SuppressWarnings({ "unchecked", "rawtypes" })
- static private Enum decodeEnum(String escaped) {
- // escaped: be.xxx.EnumType.VALUE;
- int pos = escaped.lastIndexOf(".");
- String type = escaped.substring(0, pos);
- String name = escaped.substring(pos + 1, escaped.length() - 1);
-
- try {
- return Enum.valueOf((Class) getClass(type), name);
- } catch (Exception e) {
- throw new UnknownFormatConversionException("Unknown enum: <" + type
- + "> " + name);
- }
- }
-
- // aa bb -> "aa\tbb"
- static void encodeString(OutputStream out, String raw) throws IOException {
- // TODO: not. efficient.
- out.write('\"');
- for (char car : raw.toCharArray()) {
- encodeString(out, car);
- }
- out.write('\"');
- }
-
- // for encoding string, NOT to encode a char by itself!
- static void encodeString(OutputStream out, char raw) throws IOException {
- switch (raw) {
- case '\\':
- out.write('\\');
- out.write('\\');
- break;
- case '\r':
- out.write('\\');
- out.write('r');
- break;
- case '\n':
- out.write('\\');
- out.write('n');
- break;
- case '"':
- out.write('\\');
- out.write('\"');
- break;
- default:
- out.write(raw);
- break;
- }
- }
-
- // "aa\tbb" -> aa bb
- static String decodeString(String escaped) {
- StringBuilder builder = new StringBuilder();
-
- boolean escaping = false;
- for (char car : escaped.toCharArray()) {
- if (!escaping) {
- if (car == '\\') {
- escaping = true;
- } else {
- builder.append(car);
- }
- } else {
- switch (car) {
- case '\\':
- builder.append('\\');
- break;
- case 'r':
- builder.append('\r');
- break;
- case 'n':
- builder.append('\n');
- break;
- case '"':
- builder.append('"');
- break;
- }
- escaping = false;
- }
- }
-
- return builder.substring(1, builder.length() - 1);
- }
-}