use std::sync::Arc;
use std::time::Duration;
use serde::de::DeserializeOwned;
use serde::Serialize;
use async_trait::async_trait;
use crate::{AsyncRedisConnection, RedissonResult, AsyncRedisConnectionManager, AsyncRLock, AsyncRFairLock, LockableObject, AsyncRObject, AsyncRObjectBase, AsyncRLockable};
#[derive(Clone)]
pub struct AsyncBaseDistributedObject {
connection_manager: Arc<AsyncRedisConnectionManager>,
lockable: LockableObject,
}
impl AsyncBaseDistributedObject {
pub fn new(connection_manager: Arc<AsyncRedisConnectionManager>, name: String) -> Self {
Self {
connection_manager,
lockable: LockableObject::new(name),
}
}
pub fn serialize<T: Serialize>(value: &T) -> RedissonResult<String> {
serde_json::to_string(value).map_err(|e| crate::errors::RedissonError::SerializationError(e.to_string()))
}
pub fn deserialize<T: DeserializeOwned>(data: &str) -> RedissonResult<T> {
serde_json::from_str(data).map_err(|e| crate::errors::RedissonError::DeserializationError(e.to_string()))
}
pub fn build_key(&self, suffix: &str) -> String {
format!("{}:{}", self.lockable.get_full_key(), suffix)
}
pub fn connection_manager(&self) -> Arc<AsyncRedisConnectionManager> {
self.connection_manager.clone()
}
async fn get_connection(&self) -> RedissonResult<AsyncRedisConnection> {
self.connection_manager.get_connection().await
}
pub fn get_name(&self) -> &str {
&self.lockable.name
}
}
#[async_trait]
impl AsyncRObject for AsyncBaseDistributedObject {
async fn delete(&self) -> RedissonResult<bool> {
let mut conn = self.get_connection().await?;
let deleted: i32 = conn
.execute_command(&mut redis::cmd("DEL").arg(self.lockable.get_full_key()))
.await?;
Ok(deleted > 0)
}
async fn rename(&self, new_name: &str) -> RedissonResult<()> {
let mut conn = self.get_connection().await?;
conn.execute_command::<()>(
&mut redis::cmd("RENAME")
.arg(self.lockable.get_full_key())
.arg(new_name)
).await?;
Ok(())
}
async fn is_exists(&self) -> RedissonResult<bool> {
let mut conn = self.get_connection().await?;
let exists: i32 = conn
.execute_command(&mut redis::cmd("EXISTS").arg(self.lockable.get_full_key()))
.await?;
Ok(exists > 0)
}
async fn move_to_db(&self, db_index: i32) -> RedissonResult<bool> {
let mut conn = self.get_connection().await?;
let moved: i32 = conn
.execute_command(
&mut redis::cmd("MOVE")
.arg(self.lockable.get_full_key())
.arg(db_index)
)
.await?;
Ok(moved > 0)
}
async fn get_expire_time(&self) -> RedissonResult<Option<Duration>> {
let mut conn = self.get_connection().await?;
let ttl: i64 = conn
.execute_command(&mut redis::cmd("TTL").arg(self.lockable.get_full_key()))
.await?;
if ttl > 0 {
Ok(Some(Duration::from_secs(ttl as u64)))
} else {
Ok(None)
}
}
async fn expire(&self, duration: Duration) -> RedissonResult<bool> {
let mut conn = self.get_connection().await?;
let seconds = duration.as_secs() as i64;
let result: i32 = conn
.execute_command(
&mut redis::cmd("EXPIRE")
.arg(self.lockable.get_full_key())
.arg(seconds)
)
.await?;
Ok(result > 0)
}
async fn expire_at(&self, timestamp: i64) -> RedissonResult<bool> {
let mut conn = self.get_connection().await?;
let result: i32 = conn
.execute_command(
&mut redis::cmd("EXPIREAT")
.arg(self.lockable.get_full_key())
.arg(timestamp)
)
.await?;
Ok(result > 0)
}
async fn clear_expire(&self) -> RedissonResult<bool> {
let mut conn = self.get_connection().await?;
let result: i32 = conn
.execute_command(&mut redis::cmd("PERSIST").arg(self.lockable.get_full_key()))
.await?;
Ok(result > 0)
}
}
#[async_trait]
impl AsyncRLockable for AsyncBaseDistributedObject {
fn get_lock(&self) -> AsyncRLock {
AsyncRLock::new(
self.connection_manager.clone(),
self.lockable.get_lock_name(),
Duration::from_secs(30)
)
}
fn get_fair_lock(&self) -> AsyncRFairLock {
AsyncRFairLock::new(
self.connection_manager.clone(),
self.lockable.get_fair_lock_name(),
Duration::from_secs(30)
)
}
async fn lock(&self) -> RedissonResult<()> {
self.get_lock().lock().await
}
async fn try_lock(&self) -> RedissonResult<bool> {
self.get_lock().try_lock().await
}
async fn try_lock_timeout(&self, wait_time: Duration) -> RedissonResult<bool> {
self.get_lock().try_lock_with_timeout(wait_time).await
}
async fn lock_lease(&self, lease_time: Duration) -> RedissonResult<()> {
self.get_lock().lock_with_lease_time(lease_time).await
}
async fn unlock(&self) -> RedissonResult<bool> {
self.get_lock().unlock().await
}
async fn force_unlock(&self) -> RedissonResult<bool> {
self.get_lock().force_unlock().await
}
async fn is_locked(&self) -> RedissonResult<bool> {
self.get_lock().is_locked().await
}
async fn is_held_by_current_thread(&self) -> bool {
self.get_lock().is_held_by_current_thread().await
}
}
#[async_trait]
impl AsyncRObjectBase<String> for AsyncBaseDistributedObject {
async fn get_connection(&self) -> RedissonResult<AsyncRedisConnection> {
self.connection_manager.get_connection().await
}
fn serialize_value(&self, value: &String) -> RedissonResult<String> {
Ok(value.clone())
}
fn deserialize_value(&self, data: &str) -> RedissonResult<String> {
Ok(data.to_string())
}
fn get_full_key(&self) -> String {
self.lockable.get_full_key().to_string()
}
}