Examples with Json siena.Json used on opensource projects

Example 1 with Json

use of siena.Json in project siena by mandubian.

the class JsonSerializer method deserialize.

public static Object deserialize(Field f, Json data) {
    if (data == null || data.isNull())
        return deserializePlain(f.getType(), data);
    Class<?> clazz = f.getType();
    if (Map.class.isAssignableFrom(clazz)) {
        if (!data.isMap()) {
            throw new SienaException("Error while deserializating field " + f.getDeclaringClass() + "." + f.getName() + " of type " + clazz + ". A Json map is needed but found: " + data);
        }
        Map<String, Object> map = new HashMap<String, Object>();
        for (String key : data.keys()) {
            map.put(key, deserialize(Util.getGenericClass(f, 1), data.get(key)));
        }
        return map;
    } else if (Collection.class.isAssignableFrom(clazz)) {
        if (!data.isList()) {
            throw new SienaException("Error while deserializating field " + f.getDeclaringClass() + "." + f.getName() + " of type " + clazz + ". A Json list is needed but found: " + data);
        }
        Collection<Object> collection = null;
        if (clazz == List.class) {
            collection = new ArrayList<Object>(data.size());
        } else {
            collection = new HashSet<Object>();
        }
        for (Json value : data) {
            collection.add(deserialize(Util.getGenericClass(f, 0), value));
        }
        return collection;
    } else if (Json.class.isAssignableFrom(clazz)) {
        return data;
    } else if (Field.class.isAssignableFrom(clazz)) {
        String fieldName = data.get("fieldName").asString();
        String parentClass = data.get("parentClass").asString();
        try {
            Class<?> cl = Class.forName(parentClass);
            Field fi = cl.getField(fieldName);
            return fi;
        } catch (ClassNotFoundException ex) {
            throw new SienaException(ex);
        } catch (NoSuchFieldException ex) {
            throw new SienaException(ex);
        }
    } else if (clazz.isArray()) {
        Class<?> arrClazz = clazz.getComponentType();
        Object arr = Array.newInstance(arrClazz, data.size());
        int i = 0;
        for (Json value : data) {
            Array.set(arr, i++, deserialize(arrClazz, value));
        }
        return arr;
    } else if (clazz == Class.class) {
        String className = data.get("className").asString();
        try {
            Class<?> cl = Class.forName(className);
            return cl;
        } catch (ClassNotFoundException ex) {
            throw new SienaException(ex);
        }
    }
    Format format = f.getAnnotation(Format.class);
    if (format != null) {
        if (f.getType() == Date.class) {
            SimpleDateFormat sdf = new SimpleDateFormat(format.value());
            try {
                return sdf.parse(data.str());
            } catch (ParseException e) {
                throw new SienaException(e);
            }
        }
    }
    JsonDeserializeAs as = f.getAnnotation(JsonDeserializeAs.class);
    if (as != null) {
        if (as.value() == String.class) {
            return data.asString();
        } else {
            return deserialize(as.value(), data);
        }
    }
    return deserialize(clazz, data);
}

Example 2 with Json

use of siena.Json in project siena by mandubian.

the class JdbcPersistenceManager method addParameters.

protected int addParameters(Object obj, List<Field> fields, PreparedStatement ps, int i) throws SQLException {
    for (Field field : fields) {
        Class<?> type = field.getType();
        if (ClassInfo.isModel(type) && !ClassInfo.isEmbedded(field)) {
            JdbcClassInfo ci = JdbcClassInfo.getClassInfo(type);
            Object rel = Util.readField(obj, field);
            for (Field f : ci.keys) {
                if (rel != null) {
                    Object value = Util.readField(rel, f);
                    if (value instanceof Json)
                        value = ((Json) value).toString();
                    setParameter(ps, i++, value);
                } else {
                    setParameter(ps, i++, null);
                }
            }
        } else {
            Object value = Util.readField(obj, field);
            if (value != null) {
                if (Json.class.isAssignableFrom(type)) {
                    value = ((Json) value).toString();
                } else if (field.getAnnotation(Embedded.class) != null) {
                    value = JsonSerializer.serialize(value).toString();
                } else if (field.getAnnotation(Polymorphic.class) != null) {
                    ByteArrayOutputStream bos = new ByteArrayOutputStream();
                    ObjectOutput out;
                    try {
                        out = new ObjectOutputStream(bos);
                        out.writeObject(value);
                        out.close();
                    } catch (IOException e) {
                        throw new SienaException(e);
                    }
                    value = bos.toByteArray();
                } else if (Enum.class.isAssignableFrom(type)) {
                    value = value.toString();
                } else if (BigDecimal.class == type) {
                    DecimalPrecision ann = field.getAnnotation(DecimalPrecision.class);
                    if (ann == null) {
                        value = (BigDecimal) value;
                    } else {
                        switch(ann.storageType()) {
                            case DOUBLE:
                                value = ((BigDecimal) value).doubleValue();
                                break;
                            case STRING:
                                value = ((BigDecimal) value).toPlainString();
                                break;
                            case NATIVE:
                                value = (BigDecimal) value;
                                break;
                        }
                    }
                }
            }
            setParameter(ps, i++, value);
        }
    }
    return i;
}

Example 3 with Json

use of siena.Json in project siena by mandubian.

the class JsonSerializer method serialize.

public void serialize(Document document, OutputStream out) throws IOException {
    Json json = toJson(document);
    json.write(new OutputStreamWriter(out));
}

Example 4 with Json

use of siena.Json in project siena by mandubian.

the class JsonSerializer method deserialize.

public Document deserialize(InputStream in) throws IOException {
    BufferedReader reader = new BufferedReader(new InputStreamReader(in));
    Json json = Json.load(reader);
    return fromJson(json);
}

Example 5 with Json

use of siena.Json in project siena by mandubian.

the class JsonSerializer method main.

public static void main(String[] args) {
    Document doc = DocumentHelper.createDocument();
    doc.addElement("root").addAttribute("foo", "bar").addAttribute("foobar", "baz").addElement("child").addAttribute("x", "y").addElement("grandchild").addAttribute("a", "b").setText("foo bar");
    System.out.println("Original document");
    System.out.println(doc.asXML());
    System.out.println();
    Json json = toJson(doc);
    System.out.println("As Json");
    System.out.println(json);
    System.out.println();
    Document result = fromJson(json);
    System.out.println("Back to document");
    System.out.println(result.asXML());
    System.out.println();
}