/** @param elementType May be null if the type is unknown. */
public void writeField(Object object, String fieldName, String jsonName, Class elementType) {
Type type = ReflectionCache.getType(object.getClass());
ObjectMap<String, FieldMetadata> fields = typeToFields.get(type);
if (fields == null) fields = cacheFields(type);
FieldMetadata metadata = fields.get(fieldName);
if (metadata == null)
throw new SerializationException(
"Field not found: " + fieldName + " (" + type.getName() + ")");
Field field = metadata.field;
if (elementType == null) elementType = metadata.elementType;
try {
if (debug)
System.out.println("Writing field: " + field.getName() + " (" + type.getName() + ")");
writer.name(jsonName);
writeValue(field.get(object), field.getType().getClassOfType(), elementType);
} catch (IllegalAccessException ex) {
throw new SerializationException(
"Error accessing field: " + field.getName() + " (" + type.getName() + ")", ex);
} catch (SerializationException ex) {
ex.addTrace(field + " (" + type.getName() + ")");
throw ex;
} catch (Exception runtimeEx) {
SerializationException ex = new SerializationException(runtimeEx);
ex.addTrace(field + " (" + type.getName() + ")");
throw ex;
}
}
private ObjectMap<String, FieldMetadata> cacheFields(Type type) {
ArrayList<Field> allFields = new ArrayList();
Type nextClass = type;
while (nextClass != null && nextClass.getClassOfType() != Object.class) {
Collections.addAll(allFields, nextClass.getDeclaredFields());
nextClass = nextClass.getSuperclass();
}
ObjectMap<String, FieldMetadata> nameToField = new ObjectMap();
for (int i = 0, n = allFields.size(); i < n; i++) {
Field field = allFields.get(i);
if (field.isTransient()) continue;
if (field.isStatic()) continue;
if (field.isSynthetic()) continue;
if (!field.isAccessible()) {
try {
field.setAccessible(true);
} catch (AccessControlException ex) {
continue;
}
}
nameToField.put(field.getName(), new FieldMetadata(field));
}
typeToFields.put(type, nameToField);
return nameToField;
}
public void readFields(Object object, JsonValue jsonMap) {
Type type = ReflectionCache.getType(object.getClass());
ObjectMap<String, FieldMetadata> fields = typeToFields.get(type);
if (fields == null) fields = cacheFields(type);
for (JsonValue child = jsonMap.child(); child != null; child = child.next()) {
FieldMetadata metadata = fields.get(child.name());
if (metadata == null) {
if (ignoreUnknownFields) {
if (debug)
System.out.println(
"Ignoring unknown field: " + child.name() + " (" + type.getName() + ")");
continue;
} else
throw new SerializationException(
"Field not found: " + child.name() + " (" + type.getName() + ")");
}
Field field = metadata.field;
// if (entry.value == null) continue; // I don't remember what this did. :(
try {
field.set(object, readValue(field.getType().getClassOfType(), metadata.elementType, child));
} 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 elementType May be null if the type is unknown. */
public void readField(
Object object, String fieldName, String jsonName, Class elementType, JsonValue jsonMap) {
Type type = ReflectionCache.getType(object.getClass());
ObjectMap<String, FieldMetadata> fields = typeToFields.get(type);
if (fields == null) fields = cacheFields(type);
FieldMetadata metadata = fields.get(fieldName);
if (metadata == null)
throw new SerializationException(
"Field not found: " + fieldName + " (" + type.getName() + ")");
Field field = metadata.field;
JsonValue jsonValue = jsonMap.get(jsonName);
if (jsonValue == null) return;
if (elementType == null) elementType = metadata.elementType;
try {
field.set(object, readValue(field.getType().getClassOfType(), elementType, jsonValue));
} 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;
}
}
private Object[] getDefaultValues(Type type) {
if (!usePrototypes) return null;
if (classToDefaultValues.containsKey(type)) return classToDefaultValues.get(type);
Object object;
try {
object = newInstance(type);
} catch (Exception ex) {
classToDefaultValues.put(type, null);
return null;
}
ObjectMap<String, FieldMetadata> fields = typeToFields.get(type);
if (fields == null) fields = cacheFields(type);
Object[] values = new Object[fields.size];
classToDefaultValues.put(type, values);
int i = 0;
for (FieldMetadata metadata : fields.values()) {
Field field = metadata.field;
try {
values[i++] = field.get(object);
} catch (IllegalAccessException ex) {
throw new SerializationException(
"Error accessing field: " + field.getName() + " (" + type.getName() + ")", ex);
} catch (SerializationException ex) {
ex.addTrace(field + " (" + type.getName() + ")");
throw ex;
} catch (RuntimeException runtimeEx) {
SerializationException ex = new SerializationException(runtimeEx);
ex.addTrace(field + " (" + type.getName() + ")");
throw ex;
}
}
return values;
}
public void writeFields(Object object) {
Type type = ReflectionCache.getType(object.getClass());
Object[] defaultValues = getDefaultValues(type);
ObjectMap<String, FieldMetadata> fields = typeToFields.get(type);
if (fields == null) fields = cacheFields(type);
int i = 0;
for (FieldMetadata metadata : new Values<FieldMetadata>(fields)) {
Field field = metadata.field;
try {
Object value = field.get(object);
if (defaultValues != null) {
Object defaultValue = defaultValues[i++];
if (value == null && defaultValue == null) continue;
if (value != null && defaultValue != null && value.equals(defaultValue)) continue;
}
if (debug)
System.out.println("Writing field: " + field.getName() + " (" + type.getName() + ")");
writer.name(field.getName());
writeValue(value, field.getType().getClassOfType(), metadata.elementType);
} catch (IllegalAccessException ex) {
throw new SerializationException(
"Error accessing field: " + field.getName() + " (" + type.getName() + ")", ex);
} catch (SerializationException ex) {
ex.addTrace(field + " (" + type.getName() + ")");
throw ex;
} catch (Exception runtimeEx) {
SerializationException ex = new SerializationException(runtimeEx);
ex.addTrace(field + " (" + type.getName() + ")");
throw ex;
}
}
}