public void readFields(Object object, Object jsonData) {
OrderedMap<String, Object> jsonMap = (OrderedMap) jsonData;
Class type = object.getClass();
ObjectMap<String, FieldMetadata> fields = typeToFields.get(type);
if (fields == null) fields = cacheFields(type);
for (Entry<String, Object> entry : jsonMap.entries()) {
FieldMetadata metadata = fields.get(entry.key);
if (metadata == null) {
if (ignoreUnknownFields) {
if (debug)
System.out.println(
"Ignoring unknown field: " + entry.key + " (" + type.getName() + ")");
continue;
} else
throw new SerializationException(
"Field not found: " + entry.key + " (" + type.getName() + ")");
}
Field field = metadata.field;
if (entry.value == null) continue;
try {
field.set(object, readValue(field.getType(), metadata.elementType, entry.value));
} catch (IllegalAccessException ex) {
throw new SerializationException(
"Error accessing field: " + field.getName() + " (" + type.getName() + ")", ex);
} catch (SerializationException ex) {
ex.addTrace(field.getName() + " (" + type.getName() + ")");
throw ex;
} catch (RuntimeException runtimeEx) {
SerializationException ex = new SerializationException(runtimeEx);
ex.addTrace(field.getName() + " (" + type.getName() + ")");
throw ex;
}
}
}
/**
* @param type May be null if the type is unknown.
* @param elementType May be null if the type is unknown.
* @return May be null.
*/
public <T> T readValue(Class<T> type, Class elementType, Object jsonData) {
if (jsonData == null) return null;
if (jsonData instanceof OrderedMap) {
OrderedMap<String, Object> jsonMap = (OrderedMap) jsonData;
String className = typeName == null ? null : (String) jsonMap.remove(typeName);
if (className != null) {
try {
type = (Class<T>) Class.forName(className);
} catch (ClassNotFoundException ex) {
type = tagToClass.get(className);
if (type == null) throw new SerializationException(ex);
}
}
Object object;
if (type != null) {
Serializer serializer = classToSerializer.get(type);
if (serializer != null) return (T) serializer.read(this, jsonMap, type);
object = newInstance(type);
if (object instanceof Serializable) {
((Serializable) object).read(this, jsonMap);
return (T) object;
}
if (object instanceof HashMap) {
HashMap result = (HashMap) object;
for (Entry entry : jsonMap.entries())
result.put(entry.key, readValue(elementType, null, entry.value));
return (T) result;
}
} else object = new OrderedMap();
if (object instanceof ObjectMap) {
ObjectMap result = (ObjectMap) object;
for (String key : jsonMap.orderedKeys())
result.put(key, readValue(elementType, null, jsonMap.get(key)));
return (T) result;
}
readFields(object, jsonMap);
return (T) object;
}
if (type != null) {
Serializer serializer = classToSerializer.get(type);
if (serializer != null) return (T) serializer.read(this, jsonData, type);
}
if (jsonData instanceof Array) {
Array array = (Array) jsonData;
if (type == null || Array.class.isAssignableFrom(type)) {
Array newArray = type == null ? new Array() : (Array) newInstance(type);
newArray.ensureCapacity(array.size);
for (int i = 0, n = array.size; i < n; i++)
newArray.add(readValue(elementType, null, array.get(i)));
return (T) newArray;
}
if (ArrayList.class.isAssignableFrom(type)) {
ArrayList newArray = type == null ? new ArrayList() : (ArrayList) newInstance(type);
newArray.ensureCapacity(array.size);
for (int i = 0, n = array.size; i < n; i++)
newArray.add(readValue(elementType, null, array.get(i)));
return (T) newArray;
}
if (type.isArray()) {
Class componentType = type.getComponentType();
if (elementType == null) elementType = componentType;
Object newArray = java.lang.reflect.Array.newInstance(componentType, array.size);
for (int i = 0, n = array.size; i < n; i++)
java.lang.reflect.Array.set(newArray, i, readValue(elementType, null, array.get(i)));
return (T) newArray;
}
throw new SerializationException(
"Unable to convert value to required type: " + jsonData + " (" + type.getName() + ")");
}
if (jsonData instanceof Float) {
Float floatValue = (Float) jsonData;
try {
if (type == null || type == float.class || type == Float.class)
return (T) (Float) floatValue;
if (type == int.class || type == Integer.class) return (T) (Integer) floatValue.intValue();
if (type == long.class || type == Long.class) return (T) (Long) floatValue.longValue();
if (type == double.class || type == Double.class)
return (T) (Double) floatValue.doubleValue();
if (type == short.class || type == Short.class) return (T) (Short) floatValue.shortValue();
if (type == byte.class || type == Byte.class) return (T) (Byte) floatValue.byteValue();
} catch (NumberFormatException ignored) {
}
jsonData = String.valueOf(jsonData);
}
if (jsonData instanceof Boolean) jsonData = String.valueOf(jsonData);
if (jsonData instanceof String) {
String string = (String) jsonData;
if (type == null || type == String.class) return (T) jsonData;
try {
if (type == int.class || type == Integer.class) return (T) Integer.valueOf(string);
if (type == float.class || type == Float.class) return (T) Float.valueOf(string);
if (type == long.class || type == Long.class) return (T) Long.valueOf(string);
if (type == double.class || type == Double.class) return (T) Double.valueOf(string);
if (type == short.class || type == Short.class) return (T) Short.valueOf(string);
if (type == byte.class || type == Byte.class) return (T) Byte.valueOf(string);
} catch (NumberFormatException ignored) {
}
if (type == boolean.class || type == Boolean.class) return (T) Boolean.valueOf(string);
if (type == char.class || type == Character.class) return (T) (Character) string.charAt(0);
if (type.isEnum()) {
Object[] constants = type.getEnumConstants();
for (int i = 0, n = constants.length; i < n; i++)
if (string.equals(constants[i].toString())) return (T) constants[i];
}
if (type == CharSequence.class) return (T) string;
throw new SerializationException(
"Unable to convert value to required type: " + jsonData + " (" + type.getName() + ")");
}
return null;
}
