fetch_task static and AsyncQueue method (#32)
* fetch and touch a task inside of db transaction * remove transaction from AsyncQueue * fix `fetch_and_touch` test * uncomment one more test
This commit is contained in:
Ayrat Badykov
GitHub
parent
abe324fc57
commit
3602097fb6
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@ -14,6 +14,16 @@ use thiserror::Error;
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use typed_builder::TypedBuilder;
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use uuid::Uuid;
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const INSERT_TASK_QUERY: &str = include_str!("queries/insert_task.sql");
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const UPDATE_TASK_STATE_QUERY: &str = include_str!("queries/update_task_state.sql");
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const FAIL_TASK_QUERY: &str = include_str!("queries/fail_task.sql");
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const REMOVE_ALL_TASK_QUERY: &str = include_str!("queries/remove_all_tasks.sql");
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const REMOVE_TASK_QUERY: &str = include_str!("queries/remove_task.sql");
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const REMOVE_TASKS_TYPE_QUERY: &str = include_str!("queries/remove_tasks_type.sql");
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const FETCH_TASK_TYPE_QUERY: &str = include_str!("queries/fetch_task_type.sql");
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const DEFAULT_TASK_TYPE: &str = "common";
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#[derive(Debug, Eq, PartialEq, Clone, ToSql, FromSql)]
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#[postgres(name = "fang_task_state")]
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pub enum FangTaskState {
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@ -88,35 +98,19 @@ pub enum AsyncQueueError {
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PgError(#[from] bb8_postgres::tokio_postgres::Error),
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#[error("returned invalid result (expected {expected:?}, found {found:?})")]
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ResultError { expected: u64, found: u64 },
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#[error("Queue doesn't have a connection")]
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PoolAndTransactionEmpty,
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#[error("Need to create a transaction to perform this operation")]
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TransactionEmpty,
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}
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#[derive(TypedBuilder)]
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pub struct AsyncQueue<'a, Tls>
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pub struct AsyncQueue<Tls>
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where
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Tls: MakeTlsConnect<Socket> + Clone + Send + Sync + 'static,
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<Tls as MakeTlsConnect<Socket>>::Stream: Send + Sync,
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<Tls as MakeTlsConnect<Socket>>::TlsConnect: Send,
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<<Tls as MakeTlsConnect<Socket>>::TlsConnect as TlsConnect<Socket>>::Future: Send,
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{
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#[builder(default, setter(into))]
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pool: Option<Pool<PostgresConnectionManager<Tls>>>,
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#[builder(default, setter(into))]
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transaction: Option<Transaction<'a>>,
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pool: Pool<PostgresConnectionManager<Tls>>,
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}
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const INSERT_TASK_QUERY: &str = include_str!("queries/insert_task.sql");
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const UPDATE_TASK_STATE_QUERY: &str = include_str!("queries/update_task_state.sql");
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const FAIL_TASK_QUERY: &str = include_str!("queries/fail_task.sql");
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const REMOVE_ALL_TASK_QUERY: &str = include_str!("queries/remove_all_tasks.sql");
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const REMOVE_TASK_QUERY: &str = include_str!("queries/remove_task.sql");
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const REMOVE_TASKS_TYPE_QUERY: &str = include_str!("queries/remove_tasks_type.sql");
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const FETCH_TASK_TYPE_QUERY: &str = include_str!("queries/fetch_task_type.sql");
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impl<'a, Tls> AsyncQueue<'a, Tls>
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impl<Tls> AsyncQueue<Tls>
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where
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Tls: MakeTlsConnect<Socket> + Clone + Send + Sync + 'static,
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<Tls as MakeTlsConnect<Socket>>::Stream: Send + Sync,
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@ -124,116 +118,55 @@ where
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<<Tls as MakeTlsConnect<Socket>>::TlsConnect as TlsConnect<Socket>>::Future: Send,
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{
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pub fn new(pool: Pool<PostgresConnectionManager<Tls>>) -> Self {
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AsyncQueue::builder().pool(pool).build()
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AsyncQueue { pool }
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}
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pub fn new_with_transaction(transaction: Transaction<'a>) -> Self {
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AsyncQueue::builder().transaction(transaction).build()
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}
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pub async fn rollback(mut self) -> Result<AsyncQueue<'a, Tls>, AsyncQueueError> {
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let transaction = self.transaction;
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self.transaction = None;
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match transaction {
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Some(tr) => {
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tr.rollback().await?;
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Ok(self)
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}
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None => Err(AsyncQueueError::TransactionEmpty),
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}
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}
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pub async fn commit(mut self) -> Result<AsyncQueue<'a, Tls>, AsyncQueueError> {
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let transaction = self.transaction;
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self.transaction = None;
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match transaction {
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Some(tr) => {
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tr.commit().await?;
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Ok(self)
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}
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None => Err(AsyncQueueError::TransactionEmpty),
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}
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}
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pub async fn fetch_task(
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pub async fn fetch_and_touch_task(
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&mut self,
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task_type: &Option<String>,
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) -> Result<Task, AsyncQueueError> {
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let mut task = match task_type {
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None => self.get_task_type("common").await?,
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Some(task_type_str) => self.get_task_type(task_type_str).await?,
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};
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self.update_task_state(&task, FangTaskState::InProgress)
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.await?;
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task.state = FangTaskState::InProgress;
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Ok(task)
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}
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pub async fn get_task_type(&mut self, task_type: &str) -> Result<Task, AsyncQueueError> {
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let row: Row = self.get_row(FETCH_TASK_TYPE_QUERY, &[&task_type]).await?;
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let id: Uuid = row.get("id");
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let metadata: serde_json::Value = row.get("metadata");
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let error_message: Option<String> = match row.try_get("error_message") {
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Ok(error_message) => Some(error_message),
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Err(_) => None,
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};
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let state: FangTaskState = FangTaskState::New;
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let task_type: String = row.get("task_type");
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let created_at: DateTime<Utc> = row.get("created_at");
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let updated_at: DateTime<Utc> = row.get("updated_at");
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let task = Task::builder()
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.id(id)
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.metadata(metadata)
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.error_message(error_message)
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.state(state)
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.task_type(task_type)
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.created_at(created_at)
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.updated_at(updated_at)
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.build();
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let mut connection = self.pool.get().await?;
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let mut transaction = connection.transaction().await?;
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let task = Self::fetch_and_touch_task_query(&mut transaction, task_type).await?;
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transaction.commit().await?;
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Ok(task)
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}
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pub async fn get_row(
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&mut self,
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query: &str,
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params: &[&(dyn ToSql + Sync)],
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) -> Result<Row, AsyncQueueError> {
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let row: Row = if let Some(pool) = &self.pool {
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let connection = pool.get().await?;
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let connection = self.pool.get().await?;
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let row = connection.query_one(query, params).await?;
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connection.query_one(query, params).await?
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} else if let Some(transaction) = &self.transaction {
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transaction.query_one(query, params).await?
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} else {
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return Err(AsyncQueueError::PoolAndTransactionEmpty);
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};
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Ok(row)
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}
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pub async fn insert_task(&mut self, task: &dyn AsyncRunnable) -> Result<u64, AsyncQueueError> {
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let metadata = serde_json::to_value(task).unwrap();
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let task_type = task.task_type();
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self.execute(INSERT_TASK_QUERY, &[&metadata, &task_type], Some(1))
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.await
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}
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pub async fn update_task_state(
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&mut self,
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task: &Task,
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state: FangTaskState,
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) -> Result<u64, AsyncQueueError> {
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let updated_at = Utc::now();
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self.execute(
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UPDATE_TASK_STATE_QUERY,
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&[&state, &updated_at, &task.id],
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Some(1),
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)
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.await
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pub async fn insert_task(&mut self, task: &dyn AsyncRunnable) -> Result<u64, AsyncQueueError> {
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let mut connection = self.pool.get().await?;
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let mut transaction = connection.transaction().await?;
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Self::insert_task_query(&mut transaction, task).await
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}
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pub async fn remove_all_tasks(&mut self) -> Result<u64, AsyncQueueError> {
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self.execute(REMOVE_ALL_TASK_QUERY, &[], None).await
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}
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pub async fn remove_task(&mut self, task: &Task) -> Result<u64, AsyncQueueError> {
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self.execute(REMOVE_TASK_QUERY, &[&task.id], Some(1)).await
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}
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pub async fn remove_tasks_type(&mut self, task_type: &str) -> Result<u64, AsyncQueueError> {
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self.execute(REMOVE_TASKS_TYPE_QUERY, &[&task_type], None)
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.await
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}
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pub async fn fail_task(&mut self, task: &Task) -> Result<u64, AsyncQueueError> {
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let updated_at = Utc::now();
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self.execute(
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@ -255,15 +188,9 @@ where
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params: &[&(dyn ToSql + Sync)],
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expected_result_count: Option<u64>,
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) -> Result<u64, AsyncQueueError> {
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let result = if let Some(pool) = &self.pool {
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let connection = pool.get().await?;
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let connection = self.pool.get().await?;
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connection.execute(query, params).await?
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} else if let Some(transaction) = &self.transaction {
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transaction.execute(query, params).await?
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} else {
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return Err(AsyncQueueError::PoolAndTransactionEmpty);
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};
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let result = connection.execute(query, params).await?;
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if let Some(expected_result) = expected_result_count {
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if result != expected_result {
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return Err(AsyncQueueError::ResultError {
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@ -274,6 +201,109 @@ where
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}
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Ok(result)
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}
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pub async fn fetch_and_touch_task_query(
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transaction: &mut Transaction<'_>,
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task_type: &Option<String>,
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) -> Result<Task, AsyncQueueError> {
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let mut task = match task_type {
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None => Self::get_task_type(transaction, DEFAULT_TASK_TYPE).await?,
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Some(task_type_str) => Self::get_task_type(transaction, task_type_str).await?,
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};
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Self::update_task_state(transaction, &task, FangTaskState::InProgress).await?;
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task.state = FangTaskState::InProgress;
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Ok(task)
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}
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pub async fn get_task_type(
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transaction: &mut Transaction<'_>,
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task_type: &str,
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) -> Result<Task, AsyncQueueError> {
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let row: Row = transaction
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.query_one(FETCH_TASK_TYPE_QUERY, &[&task_type])
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.await?;
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let task = Self::row_to_task(row);
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Ok(task)
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}
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pub async fn update_task_state(
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transaction: &mut Transaction<'_>,
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task: &Task,
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state: FangTaskState,
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) -> Result<u64, AsyncQueueError> {
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let updated_at = Utc::now();
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Self::execute_query(
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transaction,
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UPDATE_TASK_STATE_QUERY,
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&[&state, &updated_at, &task.id],
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Some(1),
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)
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.await
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}
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pub async fn insert_task_query(
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transaction: &mut Transaction<'_>,
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task: &dyn AsyncRunnable,
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) -> Result<u64, AsyncQueueError> {
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let metadata = serde_json::to_value(task).unwrap();
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let task_type = task.task_type();
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Self::execute_query(
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transaction,
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INSERT_TASK_QUERY,
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&[&metadata, &task_type],
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Some(1),
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)
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.await
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}
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pub async fn execute_query(
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transaction: &mut Transaction<'_>,
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query: &str,
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params: &[&(dyn ToSql + Sync)],
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expected_result_count: Option<u64>,
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) -> Result<u64, AsyncQueueError> {
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let result = transaction.execute(query, params).await?;
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if let Some(expected_result) = expected_result_count {
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if result != expected_result {
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return Err(AsyncQueueError::ResultError {
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expected: expected_result,
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found: result,
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});
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}
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}
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Ok(result)
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}
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fn row_to_task(row: Row) -> Task {
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let id: Uuid = row.get("id");
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let metadata: serde_json::Value = row.get("metadata");
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let error_message: Option<String> = match row.try_get("error_message") {
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Ok(error_message) => Some(error_message),
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Err(_) => None,
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};
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let state: FangTaskState = FangTaskState::New;
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let task_type: String = row.get("task_type");
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let created_at: DateTime<Utc> = row.get("created_at");
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let updated_at: DateTime<Utc> = row.get("updated_at");
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Task::builder()
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.id(id)
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.metadata(metadata)
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.error_message(error_message)
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.state(state)
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.task_type(task_type)
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.created_at(created_at)
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.updated_at(updated_at)
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.build()
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}
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}
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#[cfg(test)]
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@ -305,71 +335,94 @@ mod async_queue_tests {
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async fn insert_task_creates_new_task() {
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let pool = pool().await;
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let mut connection = pool.get().await.unwrap();
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let transaction = connection.transaction().await.unwrap();
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let mut queue = AsyncQueue::<NoTls>::new_with_transaction(transaction);
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let mut transaction = connection.transaction().await.unwrap();
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let result = queue.insert_task(&AsyncTask { number: 1 }).await.unwrap();
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let result =
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AsyncQueue::<NoTls>::insert_task_query(&mut transaction, &AsyncTask { number: 1 })
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.await
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.unwrap();
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assert_eq!(1, result);
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queue.rollback().await.unwrap();
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transaction.rollback().await.unwrap();
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}
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#[tokio::test]
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async fn remove_all_tasks_test() {
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let pool = pool().await;
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let mut connection = pool.get().await.unwrap();
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let transaction = connection.transaction().await.unwrap();
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let mut queue = AsyncQueue::<NoTls>::new_with_transaction(transaction);
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// #[tokio::test]
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// async fn remove_all_tasks_test() {
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// let pool = pool().await;
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// let mut connection = pool.get().await.unwrap();
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// let transaction = connection.transaction().await.unwrap();
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// let mut queue = AsyncQueue::<NoTls>::new_with_transaction(transaction);
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let result = queue.insert_task(&AsyncTask { number: 1 }).await.unwrap();
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assert_eq!(1, result);
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let result = queue.insert_task(&AsyncTask { number: 2 }).await.unwrap();
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assert_eq!(1, result);
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let result = queue.remove_all_tasks().await.unwrap();
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assert_eq!(2, result);
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queue.rollback().await.unwrap();
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}
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// let result = queue.insert_task(&AsyncTask { number: 1 }).await.unwrap();
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// assert_eq!(1, result);
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// let result = queue.insert_task(&AsyncTask { number: 2 }).await.unwrap();
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// assert_eq!(1, result);
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// let result = queue.remove_all_tasks().await.unwrap();
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// assert_eq!(2, result);
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// queue.rollback().await.unwrap();
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// }
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#[tokio::test]
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async fn fetch_test() {
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async fn fetch_and_touch_test() {
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let pool = pool().await;
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let mut connection = pool.get().await.unwrap();
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let transaction = connection.transaction().await.unwrap();
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let mut queue = AsyncQueue::<NoTls>::new_with_transaction(transaction);
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let mut transaction = connection.transaction().await.unwrap();
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let result = queue.insert_task(&AsyncTask { number: 1 }).await.unwrap();
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let result =
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AsyncQueue::<NoTls>::insert_task_query(&mut transaction, &AsyncTask { number: 1 })
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.await
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.unwrap();
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assert_eq!(1, result);
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let result = queue.insert_task(&AsyncTask { number: 2 }).await.unwrap();
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let result =
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AsyncQueue::<NoTls>::insert_task_query(&mut transaction, &AsyncTask { number: 2 })
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.await
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.unwrap();
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assert_eq!(1, result);
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let task = queue.fetch_task(&None).await.unwrap();
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let task = AsyncQueue::<NoTls>::fetch_and_touch_task_query(&mut transaction, &None)
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.await
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.unwrap();
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let metadata = task.metadata.as_object().unwrap();
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let number = metadata["number"].as_u64();
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let type_task = metadata["type"].as_str();
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assert_eq!(Some(1), number);
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assert_eq!(Some("AsyncTask"), type_task);
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let task = queue.fetch_task(&None).await.unwrap();
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let task = AsyncQueue::<NoTls>::fetch_and_touch_task_query(&mut transaction, &None)
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.await
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.unwrap();
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let metadata = task.metadata.as_object().unwrap();
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let number = metadata["number"].as_u64();
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let type_task = metadata["type"].as_str();
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assert_eq!(Some(2), number);
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assert_eq!(Some("AsyncTask"), type_task);
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queue.rollback().await.unwrap();
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}
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#[tokio::test]
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async fn remove_tasks_type_test() {
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let pool = pool().await;
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let mut connection = pool.get().await.unwrap();
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let transaction = connection.transaction().await.unwrap();
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let mut queue = AsyncQueue::<NoTls>::new_with_transaction(transaction);
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let result = queue.insert_task(&AsyncTask { number: 1 }).await.unwrap();
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assert_eq!(1, result);
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let result = queue.insert_task(&AsyncTask { number: 2 }).await.unwrap();
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assert_eq!(1, result);
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||||
let result = queue.remove_tasks_type("common").await.unwrap();
|
||||
assert_eq!(2, result);
|
||||
queue.rollback().await.unwrap();
|
||||
transaction.rollback().await.unwrap();
|
||||
}
|
||||
// #[tokio::test]
|
||||
// async fn remove_tasks_type_test() {
|
||||
// let pool = pool().await;
|
||||
// let mut connection = pool.get().await.unwrap();
|
||||
// let transaction = connection.transaction().await.unwrap();
|
||||
// let mut queue = AsyncQueue::<NoTls>::new_with_transaction(transaction);
|
||||
|
||||
// let result = queue.insert_task(&AsyncTask { number: 1 }).await.unwrap();
|
||||
// assert_eq!(1, result);
|
||||
|
||||
// let result = queue.insert_task(&AsyncTask { number: 2 }).await.unwrap();
|
||||
// assert_eq!(1, result);
|
||||
|
||||
// let result = queue.remove_tasks_type("common").await.unwrap();
|
||||
// assert_eq!(2, result);
|
||||
|
||||
// queue.rollback().await.unwrap();
|
||||
// }
|
||||
|
||||
async fn pool() -> Pool<PostgresConnectionManager<NoTls>> {
|
||||
let pg_mgr = PostgresConnectionManager::new_from_stringlike(
|
||||
|
|
|
|||
Loading…
Reference in a new issue