2020-04-09 15:32:28 +00:00
|
|
|
use async_trait::async_trait;
|
2020-04-10 20:01:48 +00:00
|
|
|
use serde::{Deserialize, Serialize};
|
|
|
|
use std::sync::Arc;
|
2020-04-09 15:32:28 +00:00
|
|
|
use tokio::sync::RwLock;
|
|
|
|
|
|
|
|
use crate::data::*;
|
|
|
|
use crate::server::Garage;
|
2020-04-10 20:01:48 +00:00
|
|
|
use crate::table::*;
|
2020-04-09 15:32:28 +00:00
|
|
|
|
2020-04-09 21:45:07 +00:00
|
|
|
#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
|
2020-04-09 15:32:28 +00:00
|
|
|
pub struct Object {
|
2020-04-09 21:45:07 +00:00
|
|
|
// Primary key
|
2020-04-09 15:32:28 +00:00
|
|
|
pub bucket: String,
|
2020-04-09 21:45:07 +00:00
|
|
|
|
|
|
|
// Sort key
|
2020-04-09 15:32:28 +00:00
|
|
|
pub key: String,
|
|
|
|
|
2020-04-09 21:45:07 +00:00
|
|
|
// Data
|
|
|
|
pub versions: Vec<Box<ObjectVersion>>,
|
2020-04-09 15:32:28 +00:00
|
|
|
}
|
|
|
|
|
2020-04-09 21:45:07 +00:00
|
|
|
#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
|
|
|
|
pub struct ObjectVersion {
|
2020-04-09 15:32:28 +00:00
|
|
|
pub uuid: UUID,
|
|
|
|
pub timestamp: u64,
|
|
|
|
|
|
|
|
pub mime_type: String,
|
|
|
|
pub size: u64,
|
|
|
|
pub is_complete: bool,
|
|
|
|
|
2020-04-09 21:45:07 +00:00
|
|
|
pub data: ObjectVersionData,
|
2020-04-09 15:32:28 +00:00
|
|
|
}
|
|
|
|
|
2020-04-09 21:45:07 +00:00
|
|
|
#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
|
|
|
|
pub enum ObjectVersionData {
|
2020-04-09 15:32:28 +00:00
|
|
|
DeleteMarker,
|
2020-04-10 20:01:48 +00:00
|
|
|
Inline(#[serde(with = "serde_bytes")] Vec<u8>),
|
2020-04-09 15:32:28 +00:00
|
|
|
FirstBlock(Hash),
|
|
|
|
}
|
|
|
|
|
2020-04-11 16:51:11 +00:00
|
|
|
impl ObjectVersion {
|
|
|
|
fn cmp_key(&self) -> (u64, &UUID) {
|
|
|
|
(self.timestamp, &self.uuid)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-04-09 15:32:28 +00:00
|
|
|
impl Entry<String, String> for Object {
|
|
|
|
fn partition_key(&self) -> &String {
|
|
|
|
&self.bucket
|
|
|
|
}
|
|
|
|
fn sort_key(&self) -> &String {
|
|
|
|
&self.key
|
|
|
|
}
|
|
|
|
|
2020-04-09 21:45:07 +00:00
|
|
|
fn merge(&mut self, other: &Self) {
|
2020-04-09 15:32:28 +00:00
|
|
|
for other_v in other.versions.iter() {
|
2020-04-11 16:51:11 +00:00
|
|
|
match self
|
|
|
|
.versions
|
|
|
|
.binary_search_by(|v| v.cmp_key().cmp(&other_v.cmp_key()))
|
|
|
|
{
|
2020-04-09 15:32:28 +00:00
|
|
|
Ok(i) => {
|
|
|
|
let mut v = &mut self.versions[i];
|
|
|
|
if other_v.size > v.size {
|
|
|
|
v.size = other_v.size;
|
|
|
|
}
|
2020-04-09 18:58:39 +00:00
|
|
|
if other_v.is_complete && !v.is_complete {
|
2020-04-09 15:32:28 +00:00
|
|
|
v.is_complete = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
Err(i) => {
|
|
|
|
self.versions.insert(i, other_v.clone());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2020-04-10 20:01:48 +00:00
|
|
|
let last_complete = self
|
|
|
|
.versions
|
|
|
|
.iter()
|
|
|
|
.enumerate()
|
|
|
|
.rev()
|
2020-04-09 15:32:28 +00:00
|
|
|
.filter(|(_, v)| v.is_complete)
|
|
|
|
.next()
|
|
|
|
.map(|(vi, _)| vi);
|
|
|
|
|
|
|
|
if let Some(last_vi) = last_complete {
|
|
|
|
self.versions = self.versions.drain(last_vi..).collect::<Vec<_>>();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-04-09 21:45:07 +00:00
|
|
|
pub struct ObjectTable {
|
|
|
|
pub garage: RwLock<Option<Arc<Garage>>>,
|
|
|
|
}
|
|
|
|
|
2020-04-09 15:32:28 +00:00
|
|
|
#[async_trait]
|
|
|
|
impl TableFormat for ObjectTable {
|
|
|
|
type P = String;
|
|
|
|
type S = String;
|
|
|
|
type E = Object;
|
|
|
|
|
2020-04-11 17:43:29 +00:00
|
|
|
async fn updated(&self, old: Option<Self::E>, new: Self::E) {
|
2020-04-11 16:51:11 +00:00
|
|
|
let garage = self.garage.read().await.as_ref().cloned().unwrap();
|
|
|
|
garage.clone().background.spawn(async move {
|
|
|
|
// Propagate deletion of old versions
|
|
|
|
if let Some(old_v) = old {
|
|
|
|
for v in old_v.versions.iter() {
|
|
|
|
if new
|
|
|
|
.versions
|
|
|
|
.binary_search_by(|nv| nv.cmp_key().cmp(&v.cmp_key()))
|
|
|
|
.is_err()
|
|
|
|
{
|
|
|
|
let deleted_version = Version {
|
|
|
|
uuid: v.uuid.clone(),
|
|
|
|
deleted: true,
|
|
|
|
blocks: vec![],
|
|
|
|
bucket: old_v.bucket.clone(),
|
|
|
|
key: old_v.key.clone(),
|
|
|
|
};
|
|
|
|
garage.version_table.insert(&deleted_version).await?;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
Ok(())
|
|
|
|
});
|
2020-04-09 15:32:28 +00:00
|
|
|
}
|
|
|
|
}
|