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use crate::*;
use cyfs_base::*;
use std::collections::HashMap;
use std::sync::Arc;
pub struct DirHelper;
#[async_trait::async_trait]
pub trait ObjectCache: Send + Sync {
async fn get_value(&self, object_id: ObjectId) -> BuckyResult<Option<Vec<u8>>>;
async fn put_value(&self, object_id: ObjectId, object_raw: Vec<u8>) -> BuckyResult<()>;
async fn is_exist(&self, object_id: ObjectId) -> BuckyResult<bool>;
}
pub type ObjectCacheRef = Arc<dyn ObjectCache>;
struct ObjectMapCache {
object_cache: ObjectCacheRef,
}
impl ObjectMapCache {
pub fn new(object_cache: ObjectCacheRef) -> Self {
Self {
object_cache,
}
}
pub fn new_noc_cache(
object_cache: ObjectCacheRef,
) -> ObjectMapNOCCacheRef {
let ret = Self::new(object_cache);
Arc::new(Box::new(ret) as Box<dyn ObjectMapNOCCache>)
}
}
#[async_trait::async_trait]
impl ObjectMapNOCCache for ObjectMapCache {
async fn exists(&self, object_id: &ObjectId) -> BuckyResult<bool> {
match self.object_cache.get_value(object_id.clone()).await {
Ok(_) => {
Ok(true)
},
Err(e) => {
if e.code() == BuckyErrorCode::NotFound {
Ok(false)
} else {
error!("load object map from noc error! id={}, {}", object_id, e);
Err(e)
}
}
}
}
async fn get_object_map(&self, object_id: &ObjectId) -> BuckyResult<Option<ObjectMap>> {
let resp = self.object_cache.get_value(object_id.clone()).await.map_err(|e| {
error!("load object map from noc error! id={}, {}", object_id, e);
e
})?;
if resp.is_none() {
return Ok(None);
}
match ObjectMap::raw_decode(resp.unwrap().as_slice()) {
Ok((obj, _)) => {
obj.direct_set_object_id_on_init(object_id);
Ok(Some(obj))
}
Err(e) => {
error!("decode ObjectMap object error: id={}, {}", object_id, e);
Err(e)
}
}
}
async fn put_object_map(&self, object_id: ObjectId, object: ObjectMap) -> BuckyResult<()> {
let object_raw = object.to_vec().unwrap();
self.object_cache.put_value(object_id, object_raw).await.map_err(|e| {
error!(
"insert object map to noc error! id={}, {}",
object_id, e
);
e
})?;
Ok(())
}
}
fn new_object_map_cache(object_cache: ObjectCacheRef) -> ObjectMapOpEnvCacheRef {
let noc = ObjectMapCache::new_noc_cache(object_cache);
let root_cache = ObjectMapRootMemoryCache::new_default_ref(noc);
let cache = ObjectMapOpEnvMemoryCache::new_ref(root_cache.clone());
cache
}
impl DirHelper {
pub async fn build_zip_dir_from_object_map(object_cache: ObjectCacheRef, object_map_id: &ObjectId) -> BuckyResult<ObjectId> {
let map_cache = new_object_map_cache(object_cache.clone());
let root_map = map_cache.get_object_map(object_map_id).await?;
if root_map.is_none() {
let msg = format!("object map {} is not exist", object_map_id.to_string());
log::error!("{}", msg.as_str());
return Err(BuckyError::new(BuckyErrorCode::NotFound, msg));
}
let owner = root_map.as_ref().unwrap().lock().await.desc().owner().clone();
let mut bodys = HashMap::new();
let mut entrys = HashMap::new();
let mut it = ObjectMapPathIterator::new(
root_map.unwrap(),
map_cache,
ObjectMapPathIteratorOption::new(true, false)).await;
while !it.is_end() {
let list = it.next(10).await?;
for item in list.list.into_iter() {
if let ObjectMapContentItem::Map((name, object_id)) = item.value {
if object_id.obj_type_code() == ObjectTypeCode::File {
let file_raw = object_cache.get_value(object_id.clone()).await?;
if file_raw.is_none() {
let msg = format!("file object {} is not exist", object_id.to_string());
log::error!("{}", msg.as_str());
return Err(BuckyError::new(BuckyErrorCode::NotFound, msg));
} else {
bodys.insert(object_id.clone(), file_raw.unwrap());
let inner_file_path = format!("{}/{}", item.path, name);
#[cfg(target_os = "windows")]
let inner_file_path = inner_file_path.replace("\\", "/");
let inner_file_path = inner_file_path.trim_start_matches('/').to_owned();
entrys.insert(inner_file_path,
InnerNodeInfo::new(
Attributes::new(0),
InnerNode::ObjId(object_id)));
}
} else {
let msg = format!("object {} is not file", object_id.to_string());
log::error!("{}", msg.as_str());
return Err(BuckyError::new(BuckyErrorCode::InvalidParam, msg));
}
} else {
let msg = format!("invalid object map type");
log::error!("{}", msg.as_str());
return Err(BuckyError::new(BuckyErrorCode::InvalidParam, msg));
}
}
}
let dir = if owner.is_none() {
Dir::new(
Attributes::new(0),
NDNObjectInfo::ObjList(NDNObjectList {
parent_chunk: None,
object_map: entrys,
}),
bodys,
)
.create_time(0)
.build()
} else {
Dir::new(
Attributes::new(0),
NDNObjectInfo::ObjList(NDNObjectList {
parent_chunk: None,
object_map: entrys,
}),
bodys,
)
.create_time(0)
.owner(owner.unwrap())
.build()
};
let dir_id = dir.desc().calculate_id();
object_cache.put_value(dir_id.clone(), dir.to_vec()?).await?;
Ok(dir_id)
}
}
