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use crate::err::{Error, Result};
use crate::ReadSeek;
use serde::Serialize;
use winstructs::guid::Guid;
/// $Data Attribute
#[derive(Serialize, Clone, Debug)]
pub struct ObjectIdAttr {
/// Unique Id assigned to file
pub object_id: Guid,
/// Volume where file was created
pub birth_volume_id: Option<Guid>,
/// Original Object Id of file
pub birth_object_id: Option<Guid>,
/// Domain in which object was created
pub domain_id: Option<Guid>,
}
impl ObjectIdAttr {
/// Data size should be either 16 or 64
pub fn from_stream<S: ReadSeek>(stream: &mut S, data_size: usize) -> Result<ObjectIdAttr> {
let object_id = Guid::from_reader(stream).map_err(Error::failed_to_read_guid)?;
let (birth_volume_id, birth_object_id, domain_id) = if data_size == 64 {
let g1 = Guid::from_reader(stream).map_err(Error::failed_to_read_guid)?;
let g2 = Guid::from_reader(stream).map_err(Error::failed_to_read_guid)?;
let g3 = Guid::from_reader(stream).map_err(Error::failed_to_read_guid)?;
(Some(g1), Some(g2), Some(g3))
} else {
(None, None, None)
};
Ok(ObjectIdAttr {
object_id,
birth_volume_id,
birth_object_id,
domain_id,
})
}
}
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