@SuppressWarnings({"unchecked", "rawtypes"})
public Object jsonToObject(final JSonNode json, Type type) throws MapperException {
final ClassCache cc;
try {
Class<?> clazz = null;
if (type instanceof ParameterizedType) {
Type typ = ((ParameterizedType) type).getRawType();
if (typ instanceof Class) {
clazz = (Class<?>) typ;
}
} else if (type instanceof Class) {
clazz = (Class) type;
} else if (type instanceof GenericArrayType) {
// this is for 1.6
// for 1.7 we do not get GenericArrayTypeImpl here but the
// actual array class
type =
clazz =
Array.newInstance((Class<?>) ((GenericArrayType) type).getGenericComponentType(), 0)
.getClass();
}
if (clazz == null || clazz == Object.class) {
if (json instanceof JSonArray) {
type = clazz = LinkedList.class;
} else if (json instanceof JSonObject) {
type = clazz = HashMap.class;
} else if (json instanceof JSonValue) {
switch (((JSonValue) json).getType()) {
case BOOLEAN:
type = clazz = boolean.class;
break;
case DOUBLE:
type = clazz = double.class;
break;
case LONG:
type = clazz = long.class;
break;
case NULL:
case STRING:
type = clazz = String.class;
}
}
}
final TypeMapper<?> tm = typeMapper.get(clazz);
if (tm != null) {
return tm.reverseMap(json);
}
if (json instanceof JSonValue) {
if (!Clazz.isPrimitive(type)
&& !Clazz.isString(type)
&& type != Object.class
&& ((JSonValue) json).getValue() != null
&& !Clazz.isEnum(type)) {
//
throw new MapperException(json + " cannot be mapped to " + type);
}
switch (((JSonValue) json).getType()) {
case BOOLEAN:
case DOUBLE:
case LONG:
if (type instanceof Class) {
return JSonMapper.cast(((JSonValue) json).getValue(), (Class) type);
} else {
return ((JSonValue) json).getValue();
}
case STRING:
if (type instanceof Class && ((Class<?>) type).isEnum()) {
try {
return Enum.valueOf((Class<Enum>) type, ((JSonValue) json).getValue() + "");
} catch (final IllegalArgumentException e) {
if (isIgnoreIllegalArgumentMappings() || isIgnoreIllegalEnumMappings()) {
return null;
}
throw e;
}
} else {
return ((JSonValue) json).getValue();
}
case NULL:
return null;
}
}
if (type instanceof ParameterizedType) {
final ParameterizedType pType = (ParameterizedType) type;
Type raw = pType.getRawType();
if (raw instanceof Class && Collection.class.isAssignableFrom((Class) raw)) {
final Collection<Object> inst =
(Collection<Object>) mapClasses((Class) raw).newInstance();
final JSonArray obj = (JSonArray) json;
for (final JSonNode n : obj) {
inst.add(this.jsonToObject(n, pType.getActualTypeArguments()[0]));
}
return inst;
} else if (raw instanceof Class && Map.class.isAssignableFrom((Class) raw)) {
final Map<String, Object> inst =
(Map<String, Object>) mapClasses((Class) raw).newInstance();
final JSonObject obj = (JSonObject) json;
Entry<String, JSonNode> next;
for (final Iterator<Entry<String, JSonNode>> it = obj.entrySet().iterator();
it.hasNext(); ) {
next = it.next();
inst.put(
next.getKey(),
this.jsonToObject(next.getValue(), pType.getActualTypeArguments()[1]));
}
return inst;
}
}
if (clazz != null) {
if (clazz == Object.class) {
// guess type
if (json instanceof JSonArray) {
type = LinkedList.class;
} else if (json instanceof JSonObject) {
type = HashMap.class;
}
}
if (Collection.class.isAssignableFrom(clazz)) {
final Collection<Object> inst = (Collection<Object>) mapClasses(clazz).newInstance();
final JSonArray obj = (JSonArray) json;
final Type gs = clazz.getGenericSuperclass();
final Type gType;
if (gs instanceof ParameterizedType) {
gType = ((ParameterizedType) gs).getActualTypeArguments()[0];
} else {
gType = void.class;
}
for (final JSonNode n : obj) {
inst.add(this.jsonToObject(n, gType));
}
return inst;
} else if (Map.class.isAssignableFrom(clazz)) {
final Map<String, Object> inst = (Map<String, Object>) mapClasses(clazz).newInstance();
final JSonObject obj = (JSonObject) json;
final Type gs = clazz.getGenericSuperclass();
final Type gType;
if (gs instanceof ParameterizedType) {
gType = ((ParameterizedType) gs).getActualTypeArguments()[1];
} else {
gType = void.class;
}
Entry<String, JSonNode> next;
for (final Iterator<Entry<String, JSonNode>> it = obj.entrySet().iterator();
it.hasNext(); ) {
next = it.next();
inst.put(next.getKey(), this.jsonToObject(next.getValue(), gType));
}
return inst;
} else if (clazz.isArray()) {
final JSonArray obj = (JSonArray) json;
final Object arr = Array.newInstance(mapClasses(clazz.getComponentType()), obj.size());
for (int i = 0; i < obj.size(); i++) {
final Object v = this.jsonToObject(obj.get(i), clazz.getComponentType());
Array.set(arr, i, v);
}
return arr;
} else {
if (json instanceof JSonArray) {
final java.util.List<Object> inst = new ArrayList<Object>();
final JSonArray obj = (JSonArray) json;
final Type gs = clazz.getGenericSuperclass();
final Type gType;
if (gs instanceof ParameterizedType) {
gType = ((ParameterizedType) gs).getActualTypeArguments()[0];
} else {
gType = Object.class;
}
for (final JSonNode n : obj) {
inst.add(this.jsonToObject(n, gType));
}
return inst;
} else {
final JSonObject obj = (JSonObject) json;
if (Clazz.isPrimitive(clazz)) {
//
if (isIgnoreIllegalArgumentMappings()) {
return null;
} else {
throw new IllegalArgumentException("Cannot Map " + obj + " to " + clazz);
}
}
cc = ClassCache.getClassCache(clazz);
final Object inst = cc.getInstance();
JSonNode value;
Object v;
for (final Setter s : cc.getSetter()) {
value = obj.get(s.getKey());
if (value == null) {
continue;
}
//
Type fieldType = s.getType();
// special handling for generic fields
if (fieldType instanceof TypeVariable) {
final Type[] actualTypes = ((ParameterizedType) type).getActualTypeArguments();
final TypeVariable<?>[] genericTypes = clazz.getTypeParameters();
for (int i = 0; i < genericTypes.length; i++) {
if (StringUtils.equals(
((TypeVariable) fieldType).getName(), genericTypes[i].getName())) {
fieldType = actualTypes[i];
break;
}
}
}
v = this.jsonToObject(value, fieldType);
try {
s.setValue(inst, v);
} catch (final IllegalArgumentException e) {
if (isIgnoreIllegalArgumentMappings()) {
continue;
} else if (v == null && isIgnorePrimitiveNullMapping()) {
continue;
}
throw e;
}
}
return inst;
}
}
} else {
System.err.println("TYPE?!");
}
} catch (final SecurityException e) {
e.printStackTrace();
} catch (final NoSuchMethodException e) {
e.printStackTrace();
} catch (final IllegalArgumentException e) {
e.printStackTrace();
} catch (final InstantiationException e) {
e.printStackTrace();
} catch (final IllegalAccessException e) {
e.printStackTrace();
} catch (final InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
/**
* @param obj
* @return
* @throws MapperException
*/
@SuppressWarnings("unchecked")
public JSonNode create(final Object obj) throws MapperException {
try {
if (obj == null) {
return new JSonValue(null);
}
final Class<? extends Object> clazz = obj.getClass();
TypeMapper<?> mapper;
if (clazz.isPrimitive()) {
if (clazz == boolean.class) {
return new JSonValue((Boolean) obj);
} else if (clazz == char.class) {
return new JSonValue(0 + ((Character) obj).charValue());
} else if (clazz == byte.class) {
return new JSonValue(((Byte) obj).longValue());
} else if (clazz == short.class) {
return new JSonValue(((Short) obj).longValue());
} else if (clazz == int.class) {
return new JSonValue(((Integer) obj).longValue());
} else if (clazz == long.class) {
return new JSonValue(((Long) obj).longValue());
} else if (clazz == float.class) {
return new JSonValue(((Float) obj).doubleValue());
} else if (clazz == double.class) {
return new JSonValue(((Double) obj).doubleValue());
}
} else if (clazz.isEnum()) {
return new JSonValue(obj + "");
} else if (obj instanceof Boolean) {
return new JSonValue(((Boolean) obj).booleanValue());
} else if (obj instanceof Character) {
return new JSonValue(0 + ((Character) obj).charValue());
} else if (obj instanceof Byte) {
return new JSonValue(((Byte) obj).longValue());
} else if (obj instanceof Short) {
return new JSonValue(((Short) obj).longValue());
} else if (obj instanceof Integer) {
return new JSonValue(((Integer) obj).longValue());
} else if (obj instanceof Long) {
return new JSonValue(((Long) obj).longValue());
} else if (obj instanceof Float) {
return new JSonValue(((Float) obj).doubleValue());
} else if (obj instanceof Double) {
return new JSonValue(((Double) obj).doubleValue());
} else if (obj instanceof String) {
return new JSonValue((String) obj);
} else if (obj instanceof Map) {
final JSonObject ret = new JSonObject();
Entry<Object, Object> next;
for (final Iterator<Entry<Object, Object>> it =
((Map<Object, Object>) obj).entrySet().iterator();
it.hasNext(); ) {
next = it.next();
if (!(next.getKey() instanceof String)) {
throw new MapperException(
"Map keys have to be Strings: "
+ clazz
+ " Keyclass:"
+ (next.getKey() == null ? "<null>" : next.getKey().getClass()));
}
ret.put(next.getKey().toString(), create(next.getValue()));
}
return ret;
} else if (obj instanceof Collection) {
final JSonArray ret = new JSonArray();
for (final Object o : (Collection<?>) obj) {
ret.add(create(o));
}
return ret;
} else if (clazz.isArray()) {
final JSonArray ret = new JSonArray();
for (int i = 0; i < Array.getLength(obj); i++) {
ret.add(create(Array.get(obj, i)));
}
return ret;
} else if (obj instanceof Class) {
return new JSonValue(((Class<?>) obj).getName());
} else if ((mapper = typeMapper.get(clazz)) != null) {
return mapper.map(obj);
} else /* if (obj instanceof Storable) */ {
final ClassCache cc = ClassCache.getClassCache(clazz);
final JSonObject ret = new JSonObject();
for (final Getter g : cc.getGetter()) {
ret.put(g.getKey(), create(g.getValue(obj)));
}
return ret;
}
} catch (final IllegalArgumentException e) {
e.printStackTrace();
} catch (final IllegalAccessException e) {
e.printStackTrace();
} catch (final InvocationTargetException e) {
e.printStackTrace();
} catch (final SecurityException e) {
e.printStackTrace();
} catch (final NoSuchMethodException e) {
e.printStackTrace();
}
return null;
}
