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use async_trait::async_trait;
use bb8;
use tokio::sync::Mutex;
use crate::cluster::{GetCompressor, GetConnection, ResponseCache};
use crate::error;
use crate::frame::frame_result::BodyResResultPrepared;
use crate::frame::{Frame, IntoBytes};
use crate::transport::CDRSTransport;
use crate::types::CBytesShort;
use super::utils::{prepare_flags, send_frame};
pub type PreparedQuery = CBytesShort;
#[async_trait]
pub trait PrepareExecutor<
T: CDRSTransport + Unpin + 'static,
M: bb8::ManageConnection<Connection = Mutex<T>, Error = error::Error> + Sized,
>: GetConnection<T, M> + GetCompressor<'static> + ResponseCache + Sync
{
async fn prepare_raw_tw<Q: ToString + Sync + Send>(
&self,
query: Q,
with_tracing: bool,
with_warnings: bool,
) -> error::Result<BodyResResultPrepared>
where
Self: Sized,
{
let flags = prepare_flags(with_tracing, with_warnings);
let query_frame = Frame::new_req_prepare(query.to_string(), flags);
send_frame(self, query_frame.into_cbytes(), query_frame.stream)
.await
.and_then(|response| response.get_body())
.and_then(|body| {
Ok(body
.into_prepared()
.expect("CDRS BUG: cannot convert frame into prepared"))
})
}
async fn prepare_raw<Q: ToString + Sync + Send>(&self, query: Q) -> error::Result<BodyResResultPrepared>
where
Self: Sized,
{
self.prepare_raw_tw(query, false, false).await
}
async fn prepare_tw<Q: ToString + Sync + Send>(
&self,
query: Q,
with_tracing: bool,
with_warnings: bool,
) -> error::Result<PreparedQuery>
where
Self: Sized,
{
self.prepare_raw_tw(query, with_tracing, with_warnings).await
.map(|x| x.id)
}
async fn prepare<Q: ToString + Sync + Send>(&self, query: Q) -> error::Result<PreparedQuery>
where
Self: Sized + Sync,
{
self.prepare_tw(query, false, false).await
}
}