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use std::{
io,
sync::{
atomic::{AtomicBool, Ordering},
Arc,
},
};
use super::errors;
use tokio::sync::RwLock;
#[derive(Clone)]
pub struct Database {
db: Box<dyn crate::rpcchainvm::database::Database + Send + Sync>,
corrupted: Arc<AtomicBool>,
corrupted_error: Arc<RwLock<String>>,
}
impl Database {
pub fn new(
db: Box<dyn crate::rpcchainvm::database::Database + Send + Sync>,
) -> Box<dyn crate::rpcchainvm::database::Database + Send + Sync> {
Box::new(Database {
db,
corrupted: Arc::new(AtomicBool::new(false)),
corrupted_error: Arc::new(RwLock::new("".into())),
})
}
}
impl crate::rpcchainvm::database::Database for Database {}
#[tonic::async_trait]
impl crate::rpcchainvm::database::KeyValueReaderWriterDeleter for Database {
async fn has(&self, key: &[u8]) -> io::Result<bool> {
if self.corrupted.load(Ordering::Relaxed) {
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
let db = &self.db;
match db.get(key).await {
Ok(_) => Ok(true),
Err(err) => {
let (is_corrupted, err) = errors::is_corruptible(err).await;
if is_corrupted {
*self.corrupted_error.write().await = err.to_string();
self.corrupted.store(true, Ordering::Relaxed);
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
if errors::is_not_found(&err) {
return Ok(false);
}
return Err(err);
}
}
}
async fn get(&self, key: &[u8]) -> io::Result<Vec<u8>> {
if self.corrupted.load(Ordering::Relaxed) {
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
let db = &self.db;
match db.get(key).await {
Ok(resp) => Ok(resp),
Err(err) => {
let (is_corrupted, err) = errors::is_corruptible(err).await;
if is_corrupted {
*self.corrupted_error.write().await = err.to_string();
self.corrupted.store(true, Ordering::Relaxed);
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
return Err(err);
}
}
}
async fn put(&mut self, key: &[u8], value: &[u8]) -> io::Result<()> {
if self.corrupted.load(Ordering::Relaxed) {
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
let db = &mut self.db;
match db.put(key, value).await {
Ok(_) => Ok(()),
Err(err) => {
let (is_corrupted, err) = errors::is_corruptible(err).await;
if is_corrupted {
*self.corrupted_error.write().await = err.to_string();
self.corrupted.store(true, Ordering::Relaxed);
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
return Err(err);
}
}
}
async fn delete(&mut self, key: &[u8]) -> io::Result<()> {
if self.corrupted.load(Ordering::Relaxed) {
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
let db = &mut self.db;
match db.delete(key).await {
Ok(_) => Ok(()),
Err(err) => {
let (is_corrupted, err) = errors::is_corruptible(err).await;
if is_corrupted {
*self.corrupted_error.write().await = err.to_string();
self.corrupted.store(true, Ordering::Relaxed);
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
return Err(err);
}
}
}
}
#[tonic::async_trait]
impl crate::rpcchainvm::database::Closer for Database {
async fn close(&self) -> io::Result<()> {
if self.corrupted.load(Ordering::Relaxed) {
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
let db = &self.db;
match db.close().await {
Ok(_) => Ok(()),
Err(err) => {
let (is_corrupted, err) = errors::is_corruptible(err).await;
if is_corrupted {
*self.corrupted_error.write().await = err.to_string();
self.corrupted.store(true, Ordering::Relaxed);
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
return Err(err);
}
}
}
}
#[tonic::async_trait]
impl crate::rpcchainvm::health::Checkable for Database {
async fn health_check(&self) -> io::Result<Vec<u8>> {
if self.corrupted.load(Ordering::Relaxed) {
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
let db = &self.db;
match db.health_check().await {
Ok(resp) => Ok(resp),
Err(err) => {
let (is_corrupted, err) = errors::is_corruptible(err).await;
if is_corrupted {
*self.corrupted_error.write().await = err.to_string();
self.corrupted.store(true, Ordering::Relaxed);
return Err(errors::from_string(
self.corrupted_error.read().await.to_string(),
));
}
return Err(err);
}
}
}
}