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Feat: support read file for kufu file system
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| use super::Bucket::*; | ||
| use super::{Bucket, FSManger, Storage}; | ||
| use crate::db::utils::*; | ||
| use crate::error::Error::MockParentDirError; | ||
| use crate::{ClusterObject, Result}; | ||
| use kube::core::DynamicObject; | ||
| use kube::discovery::Scope::*; | ||
| use sled::{Db, IVec, Tree}; | ||
| use std::{collections::HashMap, path::Path}; | ||
|
|
||
| impl AsRef<[u8]> for Bucket { | ||
| fn as_ref(&self) -> &[u8] { | ||
| match self { | ||
| RIndex => "reverse-index".as_bytes(), | ||
| Inode => "inode".as_bytes(), | ||
| Dentry => "dentry".as_bytes(), | ||
| Data => "data".as_bytes(), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #[allow(dead_code)] | ||
| #[derive(Clone)] | ||
| pub struct SledDb { | ||
| db: Db, | ||
| buckets: HashMap<Bucket, Tree>, | ||
| } | ||
|
|
||
| #[allow(dead_code)] | ||
| impl SledDb { | ||
| pub fn new(path: impl AsRef<Path>) -> Result<SledDb> { | ||
| let db = sled::open(path)?; | ||
| clean_one_time_buckets(&db)?; | ||
| Ok(SledDb { | ||
| db: db.clone(), | ||
| buckets: HashMap::from([ | ||
| (Bucket::RIndex, db.open_tree(Bucket::RIndex)?), | ||
| (Bucket::Inode, db.open_tree(Bucket::Inode)?), | ||
| (Bucket::Dentry, db.open_tree(Bucket::Dentry)?), | ||
| (Bucket::Data, db.open_tree(Bucket::Data)?), | ||
| ]), | ||
| }) | ||
| } | ||
|
|
||
| pub fn mount_gvr(&self, cluster_obj: &ClusterObject) -> Result<u64> { | ||
| let parent_inode = self.mount_gvk(cluster_obj)?; | ||
| let key = get_resource_full_key(cluster_obj); | ||
| let value: IVec = (cluster_obj).try_into()?; | ||
| let file_key = format!("{}.yaml", &key); | ||
| match cluster_obj.scope() { | ||
| Namespaced => self.mount_file(&file_key, parent_inode, value), | ||
| Cluster => { | ||
| self.mount_dir(&key, parent_inode)?; | ||
| self.mount_file(&file_key, parent_inode, value) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| pub fn update_gvr(&self, cluster_obj: ClusterObject) -> Result<()> { | ||
| let key = get_resource_full_key(&cluster_obj); | ||
| let value: IVec = (&cluster_obj).try_into()?; | ||
| self.edit_file(key, value) | ||
| } | ||
|
|
||
| pub fn mount_gvk(&self, cluster_obj: &ClusterObject) -> Result<u64> { | ||
| let api_path = get_resource_api_key(cluster_obj); | ||
| let parent_path = get_parent_resource_full_key(cluster_obj); | ||
| let parent_inode = if self.get_bucket(RIndex).contains_key(parent_path.clone())? { | ||
| let p_inode = self | ||
| .get_bucket(RIndex) | ||
| .get(get_parent_resource_full_key(cluster_obj))? | ||
| .unwrap(); | ||
| ivec_to_u64(&p_inode) | ||
| } else { | ||
| match cluster_obj.scope() { | ||
| Namespaced => { | ||
| // TODO: replace default to cluster | ||
| self.mount_dir( | ||
| parent_path.clone(), | ||
| self.get_inode("default/namespace".to_string())?, | ||
| )? | ||
| } | ||
| Cluster => return Err(MockParentDirError(api_path.clone())), | ||
| } | ||
| }; | ||
| self.mount_dir(api_path, parent_inode) | ||
| } | ||
| } | ||
|
|
||
| impl Storage for SledDb { | ||
| fn add(&self, cluster_obj: ClusterObject) -> Result<()> { | ||
| if self.has(&cluster_obj)? { | ||
| return self.update(cluster_obj); | ||
| } | ||
| self.mount_gvr(&cluster_obj)?; | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn update(&self, cluster_obj: ClusterObject) -> Result<()> { | ||
| let key = get_resource_full_key(&cluster_obj); | ||
| let value: IVec = (&cluster_obj).try_into()?; | ||
| self.get_bucket(Data).insert(key, value)?; | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn get(&self, cluster_obj: ClusterObject) -> Result<Option<DynamicObject>> { | ||
| let key = get_resource_full_key(&cluster_obj); | ||
| let value = self.buckets.get(&Data).unwrap().get(key)?; | ||
| match value { | ||
| Some(v) => Ok(Some(serde_yaml::from_slice(v.as_ref())?)), | ||
| None => Ok(None), | ||
| } | ||
| } | ||
|
|
||
| fn delete(&self, cluster_obj: ClusterObject) -> Result<()> { | ||
| let key = get_resource_full_key(&cluster_obj); | ||
| self.get_bucket(Data).remove(key)?; | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn get_bucket(&self, name: Bucket) -> &Tree { | ||
| self.buckets.get(&name).unwrap() | ||
| } | ||
|
|
||
| fn has(&self, cluster_obj: &ClusterObject) -> Result<bool> { | ||
| let exist = self | ||
| .get_bucket(RIndex) | ||
| .contains_key(&get_resource_full_key(cluster_obj))?; | ||
| Ok(exist) | ||
| } | ||
| } |
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