private Object getProperty(Object instance, FieldDto field, MotechDataService service)
throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
String fieldName = StringUtils.uncapitalize(field.getBasic().getName());
PropertyDescriptor propertyDescriptor = PropertyUtil.getPropertyDescriptor(instance, fieldName);
Method readMethod = propertyDescriptor.getReadMethod();
if (readMethod == null) {
throw new NoSuchMethodException(String.format("No getter for field %s", fieldName));
}
if (TypeDto.BLOB.getTypeClass().equals(field.getType().getTypeClass())) {
return ArrayUtils.EMPTY_BYTE_OBJECT_ARRAY;
}
try {
return readMethod.invoke(instance);
} catch (InvocationTargetException e) {
LOGGER.debug(
"Invocation target exception thrown when retrieving field {}. This may indicate a non loaded field",
fieldName,
e);
// fallback to the service
return service.getDetachedField(instance, fieldName);
}
}
@Override
public Object getInstanceField(Long entityId, Long instanceId, String fieldName) {
EntityDto entity = getEntity(entityId);
MotechDataService service = getServiceForEntity(entity);
validateCredentialsForReading(entity);
Object instance = service.retrieve(ID_FIELD_NAME, instanceId);
return service.getDetachedField(instance, fieldName);
}
private Object parseBlobValue(
FieldRecord fieldRecord,
MotechDataService service,
String fieldName,
Long deleteValueFieldId,
Object instance) {
Object parsedValue;
if ((ArrayUtils.EMPTY_BYTE_OBJECT_ARRAY.equals(fieldRecord.getValue())
|| ArrayUtils.EMPTY_BYTE_ARRAY.equals(fieldRecord.getValue()))
&& !fieldRecord.getId().equals(deleteValueFieldId)) {
parsedValue = service.getDetachedField(instance, fieldName);
} else {
parsedValue = fieldRecord.getValue();
}
return verifyParsedValue(parsedValue);
}