use std::sync::Arc;
use std::time::Duration;
use super::cache::MultiLevelCache;
use super::super::scaling::instance::ScalableDatabaseCluster;
pub struct HighPerformanceORM {
db_cluster: ScalableDatabaseCluster,
query_cache: Arc<MultiLevelCache>,
}
impl HighPerformanceORM {
pub async fn new(
db_cluster: ScalableDatabaseCluster
) -> Result<Self, sqlx::Error> {
let query_cache = Arc::new(MultiLevelCache::new(1000, Duration::from_secs(300)));
let orm = Self {
db_cluster,
query_cache,
};
orm.initialize_cluster().await?;
Ok(orm)
}
async fn initialize_cluster(&self) -> Result<(), sqlx::Error> {
println!("[HighPerformanceORM] Initializing database cluster connection");
Ok(())
}
pub fn db_cluster(&self) -> &ScalableDatabaseCluster {
println!("[HighPerformanceORM] Accessing database cluster");
&self.db_cluster
}
pub async fn cluster_health_check(&self) -> ClusterHealth {
println!("[HighPerformanceORM] Performing cluster health check");
ClusterHealth {
primary_healthy: true,
replicas_healthy: vec![],
total_nodes: 1,
}
}
pub async fn execute_query(&self, _query: &str) -> Result<QueryResult, ORMError> {
unimplemented!("ORM query execution not yet implemented")
}
pub async fn health_check(&self) -> ORMHealth {
let cluster_health = self.cluster_health_check().await;
ORMHealth {
cluster_healthy: cluster_health.primary_healthy,
cache_healthy: true,
active_connections: 0,
cluster_nodes: cluster_health.total_nodes,
}
}
pub async fn get_stats(&self) -> ORMStats {
let cache_stats = self.query_cache.get_stats().await;
ORMStats {
cache_l1_size: cache_stats.l1_size,
cache_l2_size: cache_stats.l2_size,
external_cache_enabled: cache_stats.external_enabled,
}
}
}
#[derive(Debug, Clone)]
pub struct ClusterHealth {
pub primary_healthy: bool,
pub replicas_healthy: Vec<bool>,
pub total_nodes: usize,
}
pub struct QueryResult {
pub success: bool,
pub rows_affected: u64,
pub execution_time: Duration,
pub data: Option<String>,
}
pub struct ORMHealth {
pub cluster_healthy: bool,
pub cache_healthy: bool,
pub active_connections: u32,
pub cluster_nodes: usize, }
pub struct ORMStats {
pub cache_l1_size: usize,
pub cache_l2_size: usize,
pub external_cache_enabled: bool,
}
#[derive(Debug)]
pub enum ORMError {
ClusterUnavailable,
QueryExecutionError(String),
CacheError(String),
}
impl std::fmt::Display for ORMError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
ORMError::ClusterUnavailable => write!(f, "Database cluster is unavailable"),
ORMError::QueryExecutionError(msg) => write!(f, "Query execution failed: {}", msg),
ORMError::CacheError(msg) => write!(f, "Cache error: {}", msg),
}
}
}
impl std::error::Error for ORMError {}