Separate Store from Conn
This commit is contained in:
Emily Toop
parent
6121da3592
commit
65fc352802
3 changed files with 671 additions and 568 deletions
572
src/conn.rs
572
src/conn.rs
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@ -88,10 +88,6 @@ use edn::entities::{
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OpType,
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};
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use mentat_tolstoy::Syncer;
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use uuid::Uuid;
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use entity_builder::{
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InProgressBuilder,
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TermBuilder,
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@ -162,48 +158,7 @@ pub struct Conn {
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// TODO: maintain cache of query plans that could be shared across threads and invalidated when
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// the schema changes. #315.
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tx_observer_service: Mutex<TxObservationService>,
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}
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/// A convenience wrapper around a single SQLite connection and a Conn. This is suitable
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/// for applications that don't require complex connection management.
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pub struct Store {
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conn: Conn,
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sqlite: rusqlite::Connection,
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}
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impl Store {
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/// Open a store at the supplied path, ensuring that it includes the bootstrap schema.
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pub fn open(path: &str) -> Result<Store> {
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let mut connection = ::new_connection(path)?;
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let conn = Conn::connect(&mut connection)?;
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Ok(Store {
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conn: conn,
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sqlite: connection,
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})
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}
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/// Returns a totally blank store with no bootstrap schema. Use `open` instead.
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pub fn open_empty(path: &str) -> Result<Store> {
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if !path.is_empty() {
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if Path::new(path).exists() {
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bail!(ErrorKind::PathAlreadyExists(path.to_string()));
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}
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}
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let mut connection = ::new_connection(path)?;
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let conn = Conn::empty(&mut connection)?;
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Ok(Store {
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conn: conn,
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sqlite: connection,
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})
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}
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pub fn transact(&mut self, transaction: &str) -> Result<TxReport> {
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let mut ip = self.begin_transaction()?;
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let report = ip.transact(transaction)?;
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ip.commit()?;
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Ok(report)
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}
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pub(crate) tx_observer_service: Arc<Mutex<TxObservationService>>,
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}
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pub trait Queryable {
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@ -240,8 +195,8 @@ pub struct InProgress<'a, 'c> {
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mutex: &'a Mutex<Metadata>,
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generation: u64,
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partition_map: PartitionMap,
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schema: Schema,
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cache: InProgressSQLiteAttributeCache,
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pub(crate) schema: Schema,
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pub(crate) cache: InProgressSQLiteAttributeCache,
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use_caching: bool,
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tx_observer: &'a Mutex<TxObservationService>,
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tx_observer_watcher: InProgressObserverTransactWatcher,
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@ -600,93 +555,6 @@ impl<'a, 'o> TransactWatcher for InProgressTransactWatcher<'a, 'o> {
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}
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}
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impl Store {
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/// Intended for use from tests.
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pub fn sqlite_mut(&mut self) -> &mut rusqlite::Connection {
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&mut self.sqlite
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}
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#[cfg(test)]
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pub fn is_registered_as_observer(&self, key: &String) -> bool {
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self.conn.tx_observer_service.lock().unwrap().is_registered(key)
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}
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}
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impl Store {
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pub fn dismantle(self) -> (rusqlite::Connection, Conn) {
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(self.sqlite, self.conn)
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}
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pub fn conn(&self) -> &Conn {
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&self.conn
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}
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pub fn begin_read<'m>(&'m mut self) -> Result<InProgressRead<'m, 'm>> {
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self.conn.begin_read(&mut self.sqlite)
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}
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pub fn begin_transaction<'m>(&'m mut self) -> Result<InProgress<'m, 'm>> {
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self.conn.begin_transaction(&mut self.sqlite)
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}
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pub fn cache(&mut self, attr: &Keyword, direction: CacheDirection) -> Result<()> {
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let schema = &self.conn.current_schema();
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self.conn.cache(&mut self.sqlite,
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schema,
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attr,
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direction,
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CacheAction::Register)
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}
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pub fn register_observer(&mut self, key: String, observer: Arc<TxObserver>) {
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self.conn.register_observer(key, observer);
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}
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pub fn unregister_observer(&mut self, key: &String) {
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self.conn.unregister_observer(key);
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}
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}
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impl Queryable for Store {
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fn q_once<T>(&self, query: &str, inputs: T) -> Result<QueryOutput>
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where T: Into<Option<QueryInputs>> {
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self.conn.q_once(&self.sqlite, query, inputs)
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}
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fn q_prepare<T>(&self, query: &str, inputs: T) -> PreparedResult
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where T: Into<Option<QueryInputs>> {
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self.conn.q_prepare(&self.sqlite, query, inputs)
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}
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fn q_explain<T>(&self, query: &str, inputs: T) -> Result<QueryExplanation>
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where T: Into<Option<QueryInputs>> {
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self.conn.q_explain(&self.sqlite, query, inputs)
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}
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fn lookup_values_for_attribute<E>(&self, entity: E, attribute: &edn::Keyword) -> Result<Vec<TypedValue>>
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where E: Into<Entid> {
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self.conn.lookup_values_for_attribute(&self.sqlite, entity.into(), attribute)
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}
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fn lookup_value_for_attribute<E>(&self, entity: E, attribute: &edn::Keyword) -> Result<Option<TypedValue>>
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where E: Into<Entid> {
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self.conn.lookup_value_for_attribute(&self.sqlite, entity.into(), attribute)
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}
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}
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impl Pullable for Store {
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fn pull_attributes_for_entities<E, A>(&self, entities: E, attributes: A) -> Result<BTreeMap<Entid, ValueRc<StructuredMap>>>
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where E: IntoIterator<Item=Entid>,
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A: IntoIterator<Item=Entid> {
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self.conn.pull_attributes_for_entities(&self.sqlite, entities, attributes)
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}
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fn pull_attributes_for_entity<A>(&self, entity: Entid, attributes: A) -> Result<StructuredMap>
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where A: IntoIterator<Item=Entid> {
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self.conn.pull_attributes_for_entity(&self.sqlite, entity, attributes)
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}
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}
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#[derive(Clone, Copy, Debug, Eq, PartialEq)]
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pub enum CacheDirection {
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Forward,
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@ -700,13 +568,6 @@ pub enum CacheAction {
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Deregister,
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}
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impl Syncable for Store {
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fn sync(&mut self, server_uri: &String, user_uuid: &String) -> Result<()> {
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let uuid = Uuid::parse_str(&user_uuid)?;
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Ok(Syncer::flow(&mut self.sqlite, server_uri, &uuid)?)
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}
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}
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impl Conn {
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// Intentionally not public.
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fn new(partition_map: PartitionMap, schema: Schema) -> Conn {
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@ -719,7 +580,7 @@ impl Conn {
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/// Prepare the provided SQLite handle for use as a Mentat store. Creates tables but
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/// _does not_ write the bootstrap schema. This constructor should only be used by
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/// consumers that expect to populate raw transaction data themselves.
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fn empty(sqlite: &mut rusqlite::Connection) -> Result<Conn> {
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pub(crate) fn empty(sqlite: &mut rusqlite::Connection) -> Result<Conn> {
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let (tx, db) = db::create_empty_current_version(sqlite)
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.chain_err(|| "Unable to initialize Mentat store")?;
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tx.commit()?;
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@ -976,15 +837,7 @@ mod tests {
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extern crate time;
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extern crate mentat_parser_utils;
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use std::collections::{
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BTreeSet,
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};
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use std::path::{
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PathBuf,
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};
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use std::sync::mpsc;
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use std::time::{
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Duration,
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Instant,
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};
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@ -994,12 +847,7 @@ mod tests {
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TypedValue,
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};
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use ::entity_builder::{
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BuildTerms,
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};
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use ::query::{
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PreparedQuery,
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Variable,
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};
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@ -1009,16 +857,6 @@ mod tests {
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QueryResults,
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};
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use ::vocabulary::{
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AttributeBuilder,
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Definition,
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VersionedStore,
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};
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use ::vocabulary::attribute::{
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Unique,
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};
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use mentat_db::USER0;
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#[test]
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@ -1391,406 +1229,4 @@ mod tests {
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assert!(conn.current_cache().is_attribute_cached_forward(db_ident));
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assert!(conn.current_cache().is_attribute_cached_forward(db_type));
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}
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fn fixture_path(rest: &str) -> PathBuf {
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let fixtures = Path::new("fixtures/");
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fixtures.join(Path::new(rest))
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}
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#[test]
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fn test_prepared_query_with_cache() {
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let mut store = Store::open("").expect("opened");
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let mut in_progress = store.begin_transaction().expect("began");
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in_progress.import(fixture_path("cities.schema")).expect("transacted schema");
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in_progress.import(fixture_path("all_seattle.edn")).expect("transacted data");
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in_progress.cache(&kw!(:neighborhood/district), CacheDirection::Forward, CacheAction::Register).expect("cache done");
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in_progress.cache(&kw!(:district/name), CacheDirection::Forward, CacheAction::Register).expect("cache done");
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in_progress.cache(&kw!(:neighborhood/name), CacheDirection::Reverse, CacheAction::Register).expect("cache done");
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let query = r#"[:find ?district
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:in ?hood
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:where
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[?neighborhood :neighborhood/name ?hood]
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[?neighborhood :neighborhood/district ?d]
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[?d :district/name ?district]]"#;
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let hood = "Beacon Hill";
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let inputs = QueryInputs::with_value_sequence(vec![(var!(?hood), TypedValue::typed_string(hood).into())]);
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let mut prepared = in_progress.q_prepare(query, inputs)
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.expect("prepared");
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match &prepared {
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&PreparedQuery::Constant { select: ref _select } => {},
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_ => panic!(),
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};
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let start = time::PreciseTime::now();
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let results = prepared.run(None).expect("results");
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let end = time::PreciseTime::now();
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println!("Prepared cache execution took {}µs", start.to(end).num_microseconds().unwrap());
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assert_eq!(results.into_rel().expect("result"),
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vec![vec![TypedValue::typed_string("Greater Duwamish")]].into());
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}
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trait StoreCache {
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fn get_entid_for_value(&self, attr: Entid, val: &TypedValue) -> Option<Entid>;
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fn is_attribute_cached_reverse(&self, attr: Entid) -> bool;
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fn is_attribute_cached_forward(&self, attr: Entid) -> bool;
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}
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impl StoreCache for Store {
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fn get_entid_for_value(&self, attr: Entid, val: &TypedValue) -> Option<Entid> {
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let cache = self.conn.current_cache();
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cache.get_entid_for_value(attr, val)
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}
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fn is_attribute_cached_forward(&self, attr: Entid) -> bool {
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self.conn.current_cache().is_attribute_cached_forward(attr)
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}
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fn is_attribute_cached_reverse(&self, attr: Entid) -> bool {
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self.conn.current_cache().is_attribute_cached_reverse(attr)
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}
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}
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#[test]
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fn test_cache_mutation() {
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let mut store = Store::open("").expect("opened");
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{
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let mut in_progress = store.begin_transaction().expect("begun");
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in_progress.transact(r#"[
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{ :db/ident :foo/bar
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:db/cardinality :db.cardinality/one
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:db/index true
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:db/unique :db.unique/identity
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:db/valueType :db.type/long },
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{ :db/ident :foo/baz
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:db/cardinality :db.cardinality/one
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:db/valueType :db.type/boolean }
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{ :db/ident :foo/x
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:db/cardinality :db.cardinality/many
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:db/valueType :db.type/long }]"#).expect("transact");
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// Cache one….
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in_progress.cache(&kw!(:foo/bar), CacheDirection::Reverse, CacheAction::Register).expect("cache done");
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in_progress.commit().expect("commit");
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}
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let foo_bar = store.conn.current_schema().get_entid(&kw!(:foo/bar)).expect("foo/bar").0;
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let foo_baz = store.conn.current_schema().get_entid(&kw!(:foo/baz)).expect("foo/baz").0;
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let foo_x = store.conn.current_schema().get_entid(&kw!(:foo/x)).expect("foo/x").0;
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// … and cache the others via the store.
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store.cache(&kw!(:foo/baz), CacheDirection::Both).expect("cache done");
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store.cache(&kw!(:foo/x), CacheDirection::Forward).expect("cache done");
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{
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assert!(store.is_attribute_cached_reverse(foo_bar));
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assert!(store.is_attribute_cached_forward(foo_baz));
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assert!(store.is_attribute_cached_reverse(foo_baz));
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assert!(store.is_attribute_cached_forward(foo_x));
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}
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// Add some data.
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{
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let mut in_progress = store.begin_transaction().expect("begun");
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{
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assert!(in_progress.cache.is_attribute_cached_reverse(foo_bar));
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assert!(in_progress.cache.is_attribute_cached_forward(foo_baz));
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assert!(in_progress.cache.is_attribute_cached_reverse(foo_baz));
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assert!(in_progress.cache.is_attribute_cached_forward(foo_x));
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assert!(in_progress.cache.overlay.is_attribute_cached_reverse(foo_bar));
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assert!(in_progress.cache.overlay.is_attribute_cached_forward(foo_baz));
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assert!(in_progress.cache.overlay.is_attribute_cached_reverse(foo_baz));
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assert!(in_progress.cache.overlay.is_attribute_cached_forward(foo_x));
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}
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in_progress.transact(r#"[
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{:foo/bar 15, :foo/baz false, :foo/x [1, 2, 3]}
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{:foo/bar 99, :foo/baz true}
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{:foo/bar -2, :foo/baz true}
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]"#).expect("transact");
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// Data is in the cache.
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let first = in_progress.cache.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
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assert_eq!(in_progress.cache.get_value_for_entid(&in_progress.schema, foo_baz, first).expect("val"), &TypedValue::Boolean(false));
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// All three values for :foo/x.
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let all_three: BTreeSet<TypedValue> = in_progress.cache
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.get_values_for_entid(&in_progress.schema, foo_x, first)
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.expect("val")
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.iter().cloned().collect();
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assert_eq!(all_three, vec![1, 2, 3].into_iter().map(TypedValue::Long).collect());
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in_progress.commit().expect("commit");
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}
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// Data is still in the cache.
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{
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let first = store.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
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let cache: SQLiteAttributeCache = store.conn.current_cache();
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assert_eq!(cache.get_value_for_entid(&store.conn.current_schema(), foo_baz, first).expect("val"), &TypedValue::Boolean(false));
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let all_three: BTreeSet<TypedValue> = cache.get_values_for_entid(&store.conn.current_schema(), foo_x, first)
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.expect("val")
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.iter().cloned().collect();
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assert_eq!(all_three, vec![1, 2, 3].into_iter().map(TypedValue::Long).collect());
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}
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// We can remove data and the cache reflects it, immediately and after commit.
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{
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let mut in_progress = store.begin_transaction().expect("began");
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let first = in_progress.cache.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
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in_progress.transact(format!("[[:db/retract {} :foo/x 2]]", first).as_str()).expect("transact");
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let only_two: BTreeSet<TypedValue> = in_progress.cache
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.get_values_for_entid(&in_progress.schema, foo_x, first)
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.expect("val")
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.iter().cloned().collect();
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assert_eq!(only_two, vec![1, 3].into_iter().map(TypedValue::Long).collect());
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// Rollback: unchanged.
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}
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{
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let first = store.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
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let cache: SQLiteAttributeCache = store.conn.current_cache();
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assert_eq!(cache.get_value_for_entid(&store.conn.current_schema(), foo_baz, first).expect("val"), &TypedValue::Boolean(false));
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let all_three: BTreeSet<TypedValue> = cache.get_values_for_entid(&store.conn.current_schema(), foo_x, first)
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.expect("val")
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.iter().cloned().collect();
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assert_eq!(all_three, vec![1, 2, 3].into_iter().map(TypedValue::Long).collect());
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}
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// Try again, but this time commit.
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{
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let mut in_progress = store.begin_transaction().expect("began");
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let first = in_progress.cache.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
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in_progress.transact(format!("[[:db/retract {} :foo/x 2]]", first).as_str()).expect("transact");
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in_progress.commit().expect("committed");
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}
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{
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let first = store.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
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let cache: SQLiteAttributeCache = store.conn.current_cache();
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assert_eq!(cache.get_value_for_entid(&store.conn.current_schema(), foo_baz, first).expect("val"), &TypedValue::Boolean(false));
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let only_two: BTreeSet<TypedValue> = cache.get_values_for_entid(&store.conn.current_schema(), foo_x, first)
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.expect("val")
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.iter().cloned().collect();
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assert_eq!(only_two, vec![1, 3].into_iter().map(TypedValue::Long).collect());
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}
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}
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||||
fn test_register_observer() {
|
||||
let mut conn = Store::open("").unwrap();
|
||||
|
||||
let key = "Test Observer".to_string();
|
||||
let tx_observer = TxObserver::new(BTreeSet::new(), move |_obs_key, _batch| {});
|
||||
|
||||
conn.register_observer(key.clone(), Arc::new(tx_observer));
|
||||
assert!(conn.is_registered_as_observer(&key));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_deregister_observer() {
|
||||
let mut conn = Store::open("").unwrap();
|
||||
|
||||
let key = "Test Observer".to_string();
|
||||
|
||||
let tx_observer = TxObserver::new(BTreeSet::new(), move |_obs_key, _batch| {});
|
||||
|
||||
conn.register_observer(key.clone(), Arc::new(tx_observer));
|
||||
assert!(conn.is_registered_as_observer(&key));
|
||||
|
||||
conn.unregister_observer(&key);
|
||||
|
||||
assert!(!conn.is_registered_as_observer(&key));
|
||||
}
|
||||
|
||||
fn add_schema(conn: &mut Store) {
|
||||
// transact some schema
|
||||
let mut in_progress = conn.begin_transaction().expect("expected in progress");
|
||||
in_progress.ensure_vocabulary(&Definition::new(
|
||||
kw!(:todo/items),
|
||||
1,
|
||||
vec![
|
||||
(kw!(:todo/uuid),
|
||||
AttributeBuilder::helpful()
|
||||
.value_type(ValueType::Uuid)
|
||||
.multival(false)
|
||||
.unique(Unique::Value)
|
||||
.index(true)
|
||||
.build()),
|
||||
(kw!(:todo/name),
|
||||
AttributeBuilder::helpful()
|
||||
.value_type(ValueType::String)
|
||||
.multival(false)
|
||||
.fulltext(true)
|
||||
.build()),
|
||||
(kw!(:todo/completion_date),
|
||||
AttributeBuilder::helpful()
|
||||
.value_type(ValueType::Instant)
|
||||
.multival(false)
|
||||
.build()),
|
||||
(kw!(:label/name),
|
||||
AttributeBuilder::helpful()
|
||||
.value_type(ValueType::String)
|
||||
.multival(false)
|
||||
.unique(Unique::Value)
|
||||
.fulltext(true)
|
||||
.index(true)
|
||||
.build()),
|
||||
(kw!(:label/color),
|
||||
AttributeBuilder::helpful()
|
||||
.value_type(ValueType::String)
|
||||
.multival(false)
|
||||
.build()),
|
||||
],
|
||||
)).expect("expected vocubulary");
|
||||
in_progress.commit().expect("Expected vocabulary committed");
|
||||
}
|
||||
|
||||
#[derive(Default, Debug)]
|
||||
struct ObserverOutput {
|
||||
txids: Vec<i64>,
|
||||
changes: Vec<BTreeSet<i64>>,
|
||||
called_key: Option<String>,
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_observer_notified_on_registered_change() {
|
||||
let mut conn = Store::open("").unwrap();
|
||||
add_schema(&mut conn);
|
||||
|
||||
let name_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:todo/name)).expect("entid to exist for name").into();
|
||||
let date_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:todo/completion_date)).expect("entid to exist for completion_date").into();
|
||||
let mut registered_attrs = BTreeSet::new();
|
||||
registered_attrs.insert(name_entid.clone());
|
||||
registered_attrs.insert(date_entid.clone());
|
||||
|
||||
let key = "Test Observing".to_string();
|
||||
|
||||
let output = Arc::new(Mutex::new(ObserverOutput::default()));
|
||||
|
||||
let mut_output = Arc::downgrade(&output);
|
||||
let (tx, rx): (mpsc::Sender<()>, mpsc::Receiver<()>) = mpsc::channel();
|
||||
// because the TxObserver is in an Arc and is therefore Sync, we have to wrap the Sender in a Mutex to also
|
||||
// make it Sync.
|
||||
let thread_tx = Mutex::new(tx);
|
||||
let tx_observer = Arc::new(TxObserver::new(registered_attrs, move |obs_key, batch| {
|
||||
if let Some(out) = mut_output.upgrade() {
|
||||
let mut o = out.lock().unwrap();
|
||||
o.called_key = Some(obs_key.to_string());
|
||||
for (tx_id, changes) in batch.into_iter() {
|
||||
o.txids.push(*tx_id);
|
||||
o.changes.push(changes.clone());
|
||||
}
|
||||
o.txids.sort();
|
||||
}
|
||||
thread_tx.lock().unwrap().send(()).unwrap();
|
||||
}));
|
||||
|
||||
conn.register_observer(key.clone(), Arc::clone(&tx_observer));
|
||||
assert!(conn.is_registered_as_observer(&key));
|
||||
|
||||
let mut tx_ids = Vec::new();
|
||||
let mut changesets = Vec::new();
|
||||
let db_tx_instant_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:db/txInstant)).expect("entid to exist for :db/txInstant").into();
|
||||
let uuid_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:todo/uuid)).expect("entid to exist for name").into();
|
||||
{
|
||||
let mut in_progress = conn.begin_transaction().expect("expected transaction");
|
||||
for i in 0..3 {
|
||||
let mut changeset = BTreeSet::new();
|
||||
changeset.insert(db_tx_instant_entid.clone());
|
||||
let name = format!("todo{}", i);
|
||||
let uuid = Uuid::new_v4();
|
||||
let mut builder = in_progress.builder().describe_tempid(&name);
|
||||
builder.add_kw(&kw!(:todo/uuid), TypedValue::Uuid(uuid)).expect("Expected added uuid");
|
||||
changeset.insert(uuid_entid.clone());
|
||||
builder.add_kw(&kw!(:todo/name), TypedValue::typed_string(&name)).expect("Expected added name");
|
||||
changeset.insert(name_entid.clone());
|
||||
if i % 2 == 0 {
|
||||
builder.add_kw(&kw!(:todo/completion_date), TypedValue::current_instant()).expect("Expected added date");
|
||||
changeset.insert(date_entid.clone());
|
||||
}
|
||||
let (ip, r) = builder.transact();
|
||||
let report = r.expect("expected a report");
|
||||
tx_ids.push(report.tx_id.clone());
|
||||
changesets.push(changeset);
|
||||
in_progress = ip;
|
||||
}
|
||||
let mut builder = in_progress.builder().describe_tempid("Label");
|
||||
builder.add_kw(&kw!(:label/name), TypedValue::typed_string("Label 1")).expect("Expected added name");
|
||||
builder.add_kw(&kw!(:label/color), TypedValue::typed_string("blue")).expect("Expected added color");
|
||||
builder.commit().expect("expect transaction to occur");
|
||||
}
|
||||
|
||||
let delay = Duration::from_millis(100);
|
||||
let _ = rx.recv_timeout(delay);
|
||||
|
||||
let out = Arc::try_unwrap(output).expect("unwrapped");
|
||||
let o = out.into_inner().expect("Expected an Output");
|
||||
assert_eq!(o.called_key, Some(key.clone()));
|
||||
assert_eq!(o.txids, tx_ids);
|
||||
assert_eq!(o.changes, changesets);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_observer_not_notified_on_unregistered_change() {
|
||||
let mut conn = Store::open("").unwrap();
|
||||
add_schema(&mut conn);
|
||||
|
||||
let name_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:todo/name)).expect("entid to exist for name").into();
|
||||
let date_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:todo/completion_date)).expect("entid to exist for completion_date").into();
|
||||
let mut registered_attrs = BTreeSet::new();
|
||||
registered_attrs.insert(name_entid.clone());
|
||||
registered_attrs.insert(date_entid.clone());
|
||||
|
||||
let key = "Test Observing".to_string();
|
||||
|
||||
let output = Arc::new(Mutex::new(ObserverOutput::default()));
|
||||
|
||||
let mut_output = Arc::downgrade(&output);
|
||||
let (tx, rx): (mpsc::Sender<()>, mpsc::Receiver<()>) = mpsc::channel();
|
||||
let thread_tx = Mutex::new(tx);
|
||||
let tx_observer = Arc::new(TxObserver::new(registered_attrs, move |obs_key, batch| {
|
||||
if let Some(out) = mut_output.upgrade() {
|
||||
let mut o = out.lock().unwrap();
|
||||
o.called_key = Some(obs_key.to_string());
|
||||
for (tx_id, changes) in batch.into_iter() {
|
||||
o.txids.push(*tx_id);
|
||||
o.changes.push(changes.clone());
|
||||
}
|
||||
o.txids.sort();
|
||||
}
|
||||
thread_tx.lock().unwrap().send(()).unwrap();
|
||||
}));
|
||||
|
||||
conn.register_observer(key.clone(), Arc::clone(&tx_observer));
|
||||
assert!(conn.is_registered_as_observer(&key));
|
||||
|
||||
let tx_ids = Vec::<Entid>::new();
|
||||
let changesets = Vec::<BTreeSet<Entid>>::new();
|
||||
{
|
||||
let mut in_progress = conn.begin_transaction().expect("expected transaction");
|
||||
for i in 0..3 {
|
||||
let name = format!("label{}", i);
|
||||
let mut builder = in_progress.builder().describe_tempid(&name);
|
||||
builder.add_kw(&kw!(:label/name), TypedValue::typed_string(&name)).expect("Expected added name");
|
||||
builder.add_kw(&kw!(:label/color), TypedValue::typed_string("blue")).expect("Expected added color");
|
||||
let (ip, _) = builder.transact();
|
||||
in_progress = ip;
|
||||
}
|
||||
}
|
||||
|
||||
let delay = Duration::from_millis(100);
|
||||
let _ = rx.recv_timeout(delay);
|
||||
|
||||
let out = Arc::try_unwrap(output).expect("unwrapped");
|
||||
let o = out.into_inner().expect("Expected an Output");
|
||||
assert_eq!(o.called_key, None);
|
||||
assert_eq!(o.txids, tx_ids);
|
||||
assert_eq!(o.changes, changesets);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -101,6 +101,7 @@ pub mod errors;
|
|||
pub mod ident;
|
||||
pub mod vocabulary;
|
||||
pub mod conn;
|
||||
pub mod stores;
|
||||
pub mod query;
|
||||
pub mod entity_builder;
|
||||
pub mod query_builder;
|
||||
|
|
@ -132,6 +133,9 @@ pub use conn::{
|
|||
Pullable,
|
||||
Queryable,
|
||||
Syncable,
|
||||
};
|
||||
|
||||
pub use stores::{
|
||||
Store,
|
||||
};
|
||||
|
||||
|
|
|
|||
663
src/stores.rs
Normal file
663
src/stores.rs
Normal file
|
|
@ -0,0 +1,663 @@
|
|||
// Copyright 2016 Mozilla
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
|
||||
// this file except in compliance with the License. You may obtain a copy of the
|
||||
// License at http://www.apache.org/licenses/LICENSE-2.0
|
||||
// Unless required by applicable law or agreed to in writing, software distributed
|
||||
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||
// specific language governing permissions and limitations under the License.
|
||||
|
||||
#![allow(dead_code)]
|
||||
|
||||
use std::collections::{
|
||||
BTreeMap,
|
||||
};
|
||||
|
||||
use std::path::{
|
||||
Path,
|
||||
};
|
||||
|
||||
use std::sync::{
|
||||
Arc,
|
||||
};
|
||||
|
||||
use rusqlite;
|
||||
|
||||
use edn;
|
||||
|
||||
use mentat_core::{
|
||||
Entid,
|
||||
Keyword,
|
||||
StructuredMap,
|
||||
TypedValue,
|
||||
ValueRc,
|
||||
};
|
||||
use mentat_db::{
|
||||
TxObserver,
|
||||
TxReport,
|
||||
};
|
||||
|
||||
use mentat_tolstoy::Syncer;
|
||||
|
||||
use uuid::Uuid;
|
||||
|
||||
use conn::{
|
||||
CacheAction,
|
||||
CacheDirection,
|
||||
Conn,
|
||||
InProgress,
|
||||
InProgressRead,
|
||||
Pullable,
|
||||
Queryable,
|
||||
Syncable
|
||||
};
|
||||
|
||||
use errors::*;
|
||||
|
||||
use query::{
|
||||
PreparedResult,
|
||||
QueryExplanation,
|
||||
QueryInputs,
|
||||
QueryOutput,
|
||||
};
|
||||
|
||||
/// A convenience wrapper around a single SQLite connection and a Conn. This is suitable
|
||||
/// for applications that don't require complex connection management.
|
||||
pub struct Store {
|
||||
conn: Conn,
|
||||
sqlite: rusqlite::Connection,
|
||||
}
|
||||
|
||||
impl Store {
|
||||
/// Open a store at the supplied path, ensuring that it includes the bootstrap schema.
|
||||
pub fn open(path: &str) -> Result<Store> {
|
||||
let mut connection = ::new_connection(path)?;
|
||||
let conn = Conn::connect(&mut connection)?;
|
||||
Ok(Store {
|
||||
conn: conn,
|
||||
sqlite: connection,
|
||||
})
|
||||
}
|
||||
|
||||
/// Returns a totally blank store with no bootstrap schema. Use `open` instead.
|
||||
pub fn open_empty(path: &str) -> Result<Store> {
|
||||
if !path.is_empty() {
|
||||
if Path::new(path).exists() {
|
||||
bail!(ErrorKind::PathAlreadyExists(path.to_string()));
|
||||
}
|
||||
}
|
||||
|
||||
let mut connection = ::new_connection(path)?;
|
||||
let conn = Conn::empty(&mut connection)?;
|
||||
Ok(Store {
|
||||
conn: conn,
|
||||
sqlite: connection,
|
||||
})
|
||||
}
|
||||
|
||||
pub fn transact(&mut self, transaction: &str) -> Result<TxReport> {
|
||||
let mut ip = self.begin_transaction()?;
|
||||
let report = ip.transact(transaction)?;
|
||||
ip.commit()?;
|
||||
Ok(report)
|
||||
}
|
||||
}
|
||||
|
||||
impl Store {
|
||||
/// Intended for use from tests.
|
||||
pub fn sqlite_mut(&mut self) -> &mut rusqlite::Connection {
|
||||
&mut self.sqlite
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
pub fn is_registered_as_observer(&self, key: &String) -> bool {
|
||||
self.conn.tx_observer_service.lock().unwrap().is_registered(key)
|
||||
}
|
||||
}
|
||||
|
||||
impl Store {
|
||||
pub fn fork(&mut self, sqlite: rusqlite::Connection) -> Store {
|
||||
Store {
|
||||
conn: self.conn.clone(),
|
||||
sqlite: sqlite,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn dismantle(self) -> (rusqlite::Connection, Conn) {
|
||||
(self.sqlite, self.conn)
|
||||
}
|
||||
|
||||
pub fn conn(&self) -> &Conn {
|
||||
&self.conn
|
||||
}
|
||||
|
||||
pub fn begin_read<'m>(&'m mut self) -> Result<InProgressRead<'m, 'm>> {
|
||||
self.conn.begin_read(&mut self.sqlite)
|
||||
}
|
||||
|
||||
pub fn begin_transaction<'m>(&'m mut self) -> Result<InProgress<'m, 'm>> {
|
||||
self.conn.begin_transaction(&mut self.sqlite)
|
||||
}
|
||||
|
||||
pub fn cache(&mut self, attr: &Keyword, direction: CacheDirection) -> Result<()> {
|
||||
let schema = &self.conn.current_schema();
|
||||
self.conn.cache(&mut self.sqlite,
|
||||
schema,
|
||||
attr,
|
||||
direction,
|
||||
CacheAction::Register)
|
||||
}
|
||||
|
||||
pub fn register_observer(&mut self, key: String, observer: Arc<TxObserver>) {
|
||||
self.conn.register_observer(key, observer);
|
||||
}
|
||||
|
||||
pub fn unregister_observer(&mut self, key: &String) {
|
||||
self.conn.unregister_observer(key);
|
||||
}
|
||||
}
|
||||
|
||||
impl Queryable for Store {
|
||||
fn q_once<T>(&self, query: &str, inputs: T) -> Result<QueryOutput>
|
||||
where T: Into<Option<QueryInputs>> {
|
||||
self.conn.q_once(&self.sqlite, query, inputs)
|
||||
}
|
||||
|
||||
fn q_prepare<T>(&self, query: &str, inputs: T) -> PreparedResult
|
||||
where T: Into<Option<QueryInputs>> {
|
||||
self.conn.q_prepare(&self.sqlite, query, inputs)
|
||||
}
|
||||
|
||||
fn q_explain<T>(&self, query: &str, inputs: T) -> Result<QueryExplanation>
|
||||
where T: Into<Option<QueryInputs>> {
|
||||
self.conn.q_explain(&self.sqlite, query, inputs)
|
||||
}
|
||||
|
||||
fn lookup_values_for_attribute<E>(&self, entity: E, attribute: &edn::Keyword) -> Result<Vec<TypedValue>>
|
||||
where E: Into<Entid> {
|
||||
self.conn.lookup_values_for_attribute(&self.sqlite, entity.into(), attribute)
|
||||
}
|
||||
|
||||
fn lookup_value_for_attribute<E>(&self, entity: E, attribute: &edn::Keyword) -> Result<Option<TypedValue>>
|
||||
where E: Into<Entid> {
|
||||
self.conn.lookup_value_for_attribute(&self.sqlite, entity.into(), attribute)
|
||||
}
|
||||
}
|
||||
|
||||
impl Pullable for Store {
|
||||
fn pull_attributes_for_entities<E, A>(&self, entities: E, attributes: A) -> Result<BTreeMap<Entid, ValueRc<StructuredMap>>>
|
||||
where E: IntoIterator<Item=Entid>,
|
||||
A: IntoIterator<Item=Entid> {
|
||||
self.conn.pull_attributes_for_entities(&self.sqlite, entities, attributes)
|
||||
}
|
||||
|
||||
fn pull_attributes_for_entity<A>(&self, entity: Entid, attributes: A) -> Result<StructuredMap>
|
||||
where A: IntoIterator<Item=Entid> {
|
||||
self.conn.pull_attributes_for_entity(&self.sqlite, entity, attributes)
|
||||
}
|
||||
}
|
||||
|
||||
impl Syncable for Store {
|
||||
fn sync(&mut self, server_uri: &String, user_uuid: &String) -> Result<()> {
|
||||
let uuid = Uuid::parse_str(&user_uuid)?;
|
||||
Ok(Syncer::flow(&mut self.sqlite, server_uri, &uuid)?)
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
extern crate time;
|
||||
extern crate mentat_parser_utils;
|
||||
|
||||
use std::collections::{
|
||||
BTreeSet,
|
||||
};
|
||||
use std::path::{
|
||||
PathBuf,
|
||||
};
|
||||
use std::sync::mpsc;
|
||||
use std::sync::{
|
||||
Mutex,
|
||||
};
|
||||
use std::time::{
|
||||
Duration,
|
||||
};
|
||||
|
||||
use mentat_db::cache::{
|
||||
SQLiteAttributeCache,
|
||||
};
|
||||
|
||||
use mentat_core::{
|
||||
CachedAttributes,
|
||||
HasSchema,
|
||||
TypedValue,
|
||||
ValueType,
|
||||
};
|
||||
|
||||
use ::entity_builder::{
|
||||
BuildTerms,
|
||||
};
|
||||
|
||||
use ::query::{
|
||||
PreparedQuery,
|
||||
};
|
||||
|
||||
use ::{
|
||||
QueryInputs,
|
||||
};
|
||||
|
||||
use ::vocabulary::{
|
||||
AttributeBuilder,
|
||||
Definition,
|
||||
VersionedStore,
|
||||
};
|
||||
|
||||
use ::vocabulary::attribute::{
|
||||
Unique,
|
||||
};
|
||||
|
||||
fn fixture_path(rest: &str) -> PathBuf {
|
||||
let fixtures = Path::new("fixtures/");
|
||||
fixtures.join(Path::new(rest))
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_prepared_query_with_cache() {
|
||||
let mut store = Store::open("").expect("opened");
|
||||
let mut in_progress = store.begin_transaction().expect("began");
|
||||
in_progress.import(fixture_path("cities.schema")).expect("transacted schema");
|
||||
in_progress.import(fixture_path("all_seattle.edn")).expect("transacted data");
|
||||
in_progress.cache(&kw!(:neighborhood/district), CacheDirection::Forward, CacheAction::Register).expect("cache done");
|
||||
in_progress.cache(&kw!(:district/name), CacheDirection::Forward, CacheAction::Register).expect("cache done");
|
||||
in_progress.cache(&kw!(:neighborhood/name), CacheDirection::Reverse, CacheAction::Register).expect("cache done");
|
||||
|
||||
let query = r#"[:find ?district
|
||||
:in ?hood
|
||||
:where
|
||||
[?neighborhood :neighborhood/name ?hood]
|
||||
[?neighborhood :neighborhood/district ?d]
|
||||
[?d :district/name ?district]]"#;
|
||||
let hood = "Beacon Hill";
|
||||
let inputs = QueryInputs::with_value_sequence(vec![(var!(?hood), TypedValue::typed_string(hood).into())]);
|
||||
let mut prepared = in_progress.q_prepare(query, inputs)
|
||||
.expect("prepared");
|
||||
match &prepared {
|
||||
&PreparedQuery::Constant { select: ref _select } => {},
|
||||
_ => panic!(),
|
||||
};
|
||||
|
||||
|
||||
let start = time::PreciseTime::now();
|
||||
let results = prepared.run(None).expect("results");
|
||||
let end = time::PreciseTime::now();
|
||||
println!("Prepared cache execution took {}µs", start.to(end).num_microseconds().unwrap());
|
||||
assert_eq!(results.into_rel().expect("result"),
|
||||
vec![vec![TypedValue::typed_string("Greater Duwamish")]].into());
|
||||
}
|
||||
|
||||
trait StoreCache {
|
||||
fn get_entid_for_value(&self, attr: Entid, val: &TypedValue) -> Option<Entid>;
|
||||
fn is_attribute_cached_reverse(&self, attr: Entid) -> bool;
|
||||
fn is_attribute_cached_forward(&self, attr: Entid) -> bool;
|
||||
}
|
||||
|
||||
impl StoreCache for Store {
|
||||
fn get_entid_for_value(&self, attr: Entid, val: &TypedValue) -> Option<Entid> {
|
||||
let cache = self.conn.current_cache();
|
||||
cache.get_entid_for_value(attr, val)
|
||||
}
|
||||
|
||||
fn is_attribute_cached_forward(&self, attr: Entid) -> bool {
|
||||
self.conn.current_cache().is_attribute_cached_forward(attr)
|
||||
}
|
||||
|
||||
fn is_attribute_cached_reverse(&self, attr: Entid) -> bool {
|
||||
self.conn.current_cache().is_attribute_cached_reverse(attr)
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_cache_mutation() {
|
||||
let mut store = Store::open("").expect("opened");
|
||||
|
||||
{
|
||||
let mut in_progress = store.begin_transaction().expect("begun");
|
||||
in_progress.transact(r#"[
|
||||
{ :db/ident :foo/bar
|
||||
:db/cardinality :db.cardinality/one
|
||||
:db/index true
|
||||
:db/unique :db.unique/identity
|
||||
:db/valueType :db.type/long },
|
||||
{ :db/ident :foo/baz
|
||||
:db/cardinality :db.cardinality/one
|
||||
:db/valueType :db.type/boolean }
|
||||
{ :db/ident :foo/x
|
||||
:db/cardinality :db.cardinality/many
|
||||
:db/valueType :db.type/long }]"#).expect("transact");
|
||||
|
||||
// Cache one….
|
||||
in_progress.cache(&kw!(:foo/bar), CacheDirection::Reverse, CacheAction::Register).expect("cache done");
|
||||
in_progress.commit().expect("commit");
|
||||
}
|
||||
|
||||
let foo_bar = store.conn.current_schema().get_entid(&kw!(:foo/bar)).expect("foo/bar").0;
|
||||
let foo_baz = store.conn.current_schema().get_entid(&kw!(:foo/baz)).expect("foo/baz").0;
|
||||
let foo_x = store.conn.current_schema().get_entid(&kw!(:foo/x)).expect("foo/x").0;
|
||||
|
||||
// … and cache the others via the store.
|
||||
store.cache(&kw!(:foo/baz), CacheDirection::Both).expect("cache done");
|
||||
store.cache(&kw!(:foo/x), CacheDirection::Forward).expect("cache done");
|
||||
{
|
||||
assert!(store.is_attribute_cached_reverse(foo_bar));
|
||||
assert!(store.is_attribute_cached_forward(foo_baz));
|
||||
assert!(store.is_attribute_cached_reverse(foo_baz));
|
||||
assert!(store.is_attribute_cached_forward(foo_x));
|
||||
}
|
||||
|
||||
// Add some data.
|
||||
{
|
||||
let mut in_progress = store.begin_transaction().expect("begun");
|
||||
|
||||
{
|
||||
assert!(in_progress.cache.is_attribute_cached_reverse(foo_bar));
|
||||
assert!(in_progress.cache.is_attribute_cached_forward(foo_baz));
|
||||
assert!(in_progress.cache.is_attribute_cached_reverse(foo_baz));
|
||||
assert!(in_progress.cache.is_attribute_cached_forward(foo_x));
|
||||
|
||||
assert!(in_progress.cache.overlay.is_attribute_cached_reverse(foo_bar));
|
||||
assert!(in_progress.cache.overlay.is_attribute_cached_forward(foo_baz));
|
||||
assert!(in_progress.cache.overlay.is_attribute_cached_reverse(foo_baz));
|
||||
assert!(in_progress.cache.overlay.is_attribute_cached_forward(foo_x));
|
||||
}
|
||||
|
||||
in_progress.transact(r#"[
|
||||
{:foo/bar 15, :foo/baz false, :foo/x [1, 2, 3]}
|
||||
{:foo/bar 99, :foo/baz true}
|
||||
{:foo/bar -2, :foo/baz true}
|
||||
]"#).expect("transact");
|
||||
|
||||
// Data is in the cache.
|
||||
let first = in_progress.cache.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
|
||||
assert_eq!(in_progress.cache.get_value_for_entid(&in_progress.schema, foo_baz, first).expect("val"), &TypedValue::Boolean(false));
|
||||
|
||||
// All three values for :foo/x.
|
||||
let all_three: BTreeSet<TypedValue> = in_progress.cache
|
||||
.get_values_for_entid(&in_progress.schema, foo_x, first)
|
||||
.expect("val")
|
||||
.iter().cloned().collect();
|
||||
assert_eq!(all_three, vec![1, 2, 3].into_iter().map(TypedValue::Long).collect());
|
||||
|
||||
in_progress.commit().expect("commit");
|
||||
}
|
||||
|
||||
// Data is still in the cache.
|
||||
{
|
||||
let first = store.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
|
||||
let cache: SQLiteAttributeCache = store.conn.current_cache();
|
||||
assert_eq!(cache.get_value_for_entid(&store.conn.current_schema(), foo_baz, first).expect("val"), &TypedValue::Boolean(false));
|
||||
|
||||
let all_three: BTreeSet<TypedValue> = cache.get_values_for_entid(&store.conn.current_schema(), foo_x, first)
|
||||
.expect("val")
|
||||
.iter().cloned().collect();
|
||||
assert_eq!(all_three, vec![1, 2, 3].into_iter().map(TypedValue::Long).collect());
|
||||
}
|
||||
|
||||
// We can remove data and the cache reflects it, immediately and after commit.
|
||||
{
|
||||
let mut in_progress = store.begin_transaction().expect("began");
|
||||
let first = in_progress.cache.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
|
||||
in_progress.transact(format!("[[:db/retract {} :foo/x 2]]", first).as_str()).expect("transact");
|
||||
|
||||
let only_two: BTreeSet<TypedValue> = in_progress.cache
|
||||
.get_values_for_entid(&in_progress.schema, foo_x, first)
|
||||
.expect("val")
|
||||
.iter().cloned().collect();
|
||||
assert_eq!(only_two, vec![1, 3].into_iter().map(TypedValue::Long).collect());
|
||||
|
||||
// Rollback: unchanged.
|
||||
}
|
||||
{
|
||||
let first = store.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
|
||||
let cache: SQLiteAttributeCache = store.conn.current_cache();
|
||||
assert_eq!(cache.get_value_for_entid(&store.conn.current_schema(), foo_baz, first).expect("val"), &TypedValue::Boolean(false));
|
||||
|
||||
let all_three: BTreeSet<TypedValue> = cache.get_values_for_entid(&store.conn.current_schema(), foo_x, first)
|
||||
.expect("val")
|
||||
.iter().cloned().collect();
|
||||
assert_eq!(all_three, vec![1, 2, 3].into_iter().map(TypedValue::Long).collect());
|
||||
}
|
||||
|
||||
// Try again, but this time commit.
|
||||
{
|
||||
let mut in_progress = store.begin_transaction().expect("began");
|
||||
let first = in_progress.cache.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
|
||||
in_progress.transact(format!("[[:db/retract {} :foo/x 2]]", first).as_str()).expect("transact");
|
||||
in_progress.commit().expect("committed");
|
||||
}
|
||||
{
|
||||
let first = store.get_entid_for_value(foo_bar, &TypedValue::Long(15)).expect("id");
|
||||
let cache: SQLiteAttributeCache = store.conn.current_cache();
|
||||
assert_eq!(cache.get_value_for_entid(&store.conn.current_schema(), foo_baz, first).expect("val"), &TypedValue::Boolean(false));
|
||||
|
||||
let only_two: BTreeSet<TypedValue> = cache.get_values_for_entid(&store.conn.current_schema(), foo_x, first)
|
||||
.expect("val")
|
||||
.iter().cloned().collect();
|
||||
assert_eq!(only_two, vec![1, 3].into_iter().map(TypedValue::Long).collect());
|
||||
}
|
||||
}
|
||||
|
||||
fn test_register_observer() {
|
||||
let mut conn = Store::open("").unwrap();
|
||||
|
||||
let key = "Test Observer".to_string();
|
||||
let tx_observer = TxObserver::new(BTreeSet::new(), move |_obs_key, _batch| {});
|
||||
|
||||
conn.register_observer(key.clone(), Arc::new(tx_observer));
|
||||
assert!(conn.is_registered_as_observer(&key));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_deregister_observer() {
|
||||
let mut conn = Store::open("").unwrap();
|
||||
|
||||
let key = "Test Observer".to_string();
|
||||
|
||||
let tx_observer = TxObserver::new(BTreeSet::new(), move |_obs_key, _batch| {});
|
||||
|
||||
conn.register_observer(key.clone(), Arc::new(tx_observer));
|
||||
assert!(conn.is_registered_as_observer(&key));
|
||||
|
||||
conn.unregister_observer(&key);
|
||||
|
||||
assert!(!conn.is_registered_as_observer(&key));
|
||||
}
|
||||
|
||||
fn add_schema(conn: &mut Store) {
|
||||
// transact some schema
|
||||
let mut in_progress = conn.begin_transaction().expect("expected in progress");
|
||||
in_progress.ensure_vocabulary(&Definition::new(
|
||||
kw!(:todo/items),
|
||||
1,
|
||||
vec![
|
||||
(kw!(:todo/uuid),
|
||||
AttributeBuilder::helpful()
|
||||
.value_type(ValueType::Uuid)
|
||||
.multival(false)
|
||||
.unique(Unique::Value)
|
||||
.index(true)
|
||||
.build()),
|
||||
(kw!(:todo/name),
|
||||
AttributeBuilder::helpful()
|
||||
.value_type(ValueType::String)
|
||||
.multival(false)
|
||||
.fulltext(true)
|
||||
.build()),
|
||||
(kw!(:todo/completion_date),
|
||||
AttributeBuilder::helpful()
|
||||
.value_type(ValueType::Instant)
|
||||
.multival(false)
|
||||
.build()),
|
||||
(kw!(:label/name),
|
||||
AttributeBuilder::helpful()
|
||||
.value_type(ValueType::String)
|
||||
.multival(false)
|
||||
.unique(Unique::Value)
|
||||
.fulltext(true)
|
||||
.index(true)
|
||||
.build()),
|
||||
(kw!(:label/color),
|
||||
AttributeBuilder::helpful()
|
||||
.value_type(ValueType::String)
|
||||
.multival(false)
|
||||
.build()),
|
||||
],
|
||||
)).expect("expected vocubulary");
|
||||
in_progress.commit().expect("Expected vocabulary committed");
|
||||
}
|
||||
|
||||
#[derive(Default, Debug)]
|
||||
struct ObserverOutput {
|
||||
txids: Vec<i64>,
|
||||
changes: Vec<BTreeSet<i64>>,
|
||||
called_key: Option<String>,
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_observer_notified_on_registered_change() {
|
||||
let mut conn = Store::open("").unwrap();
|
||||
add_schema(&mut conn);
|
||||
|
||||
let name_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:todo/name)).expect("entid to exist for name").into();
|
||||
let date_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:todo/completion_date)).expect("entid to exist for completion_date").into();
|
||||
let mut registered_attrs = BTreeSet::new();
|
||||
registered_attrs.insert(name_entid.clone());
|
||||
registered_attrs.insert(date_entid.clone());
|
||||
|
||||
let key = "Test Observing".to_string();
|
||||
|
||||
let output = Arc::new(Mutex::new(ObserverOutput::default()));
|
||||
|
||||
let mut_output = Arc::downgrade(&output);
|
||||
let (tx, rx): (mpsc::Sender<()>, mpsc::Receiver<()>) = mpsc::channel();
|
||||
// because the TxObserver is in an Arc and is therefore Sync, we have to wrap the Sender in a Mutex to also
|
||||
// make it Sync.
|
||||
let thread_tx = Mutex::new(tx);
|
||||
let tx_observer = Arc::new(TxObserver::new(registered_attrs, move |obs_key, batch| {
|
||||
if let Some(out) = mut_output.upgrade() {
|
||||
let mut o = out.lock().unwrap();
|
||||
o.called_key = Some(obs_key.to_string());
|
||||
for (tx_id, changes) in batch.into_iter() {
|
||||
o.txids.push(*tx_id);
|
||||
o.changes.push(changes.clone());
|
||||
}
|
||||
o.txids.sort();
|
||||
}
|
||||
thread_tx.lock().unwrap().send(()).unwrap();
|
||||
}));
|
||||
|
||||
conn.register_observer(key.clone(), Arc::clone(&tx_observer));
|
||||
assert!(conn.is_registered_as_observer(&key));
|
||||
|
||||
let mut tx_ids = Vec::new();
|
||||
let mut changesets = Vec::new();
|
||||
let db_tx_instant_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:db/txInstant)).expect("entid to exist for :db/txInstant").into();
|
||||
let uuid_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:todo/uuid)).expect("entid to exist for name").into();
|
||||
{
|
||||
let mut in_progress = conn.begin_transaction().expect("expected transaction");
|
||||
for i in 0..3 {
|
||||
let mut changeset = BTreeSet::new();
|
||||
changeset.insert(db_tx_instant_entid.clone());
|
||||
let name = format!("todo{}", i);
|
||||
let uuid = Uuid::new_v4();
|
||||
let mut builder = in_progress.builder().describe_tempid(&name);
|
||||
builder.add_kw(&kw!(:todo/uuid), TypedValue::Uuid(uuid)).expect("Expected added uuid");
|
||||
changeset.insert(uuid_entid.clone());
|
||||
builder.add_kw(&kw!(:todo/name), TypedValue::typed_string(&name)).expect("Expected added name");
|
||||
changeset.insert(name_entid.clone());
|
||||
if i % 2 == 0 {
|
||||
builder.add_kw(&kw!(:todo/completion_date), TypedValue::current_instant()).expect("Expected added date");
|
||||
changeset.insert(date_entid.clone());
|
||||
}
|
||||
let (ip, r) = builder.transact();
|
||||
let report = r.expect("expected a report");
|
||||
tx_ids.push(report.tx_id.clone());
|
||||
changesets.push(changeset);
|
||||
in_progress = ip;
|
||||
}
|
||||
let mut builder = in_progress.builder().describe_tempid("Label");
|
||||
builder.add_kw(&kw!(:label/name), TypedValue::typed_string("Label 1")).expect("Expected added name");
|
||||
builder.add_kw(&kw!(:label/color), TypedValue::typed_string("blue")).expect("Expected added color");
|
||||
builder.commit().expect("expect transaction to occur");
|
||||
}
|
||||
|
||||
let delay = Duration::from_millis(100);
|
||||
let _ = rx.recv_timeout(delay);
|
||||
|
||||
let out = Arc::try_unwrap(output).expect("unwrapped");
|
||||
let o = out.into_inner().expect("Expected an Output");
|
||||
assert_eq!(o.called_key, Some(key.clone()));
|
||||
assert_eq!(o.txids, tx_ids);
|
||||
assert_eq!(o.changes, changesets);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_observer_not_notified_on_unregistered_change() {
|
||||
let mut conn = Store::open("").unwrap();
|
||||
add_schema(&mut conn);
|
||||
|
||||
let name_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:todo/name)).expect("entid to exist for name").into();
|
||||
let date_entid: Entid = conn.conn().current_schema().get_entid(&kw!(:todo/completion_date)).expect("entid to exist for completion_date").into();
|
||||
let mut registered_attrs = BTreeSet::new();
|
||||
registered_attrs.insert(name_entid.clone());
|
||||
registered_attrs.insert(date_entid.clone());
|
||||
|
||||
let key = "Test Observing".to_string();
|
||||
|
||||
let output = Arc::new(Mutex::new(ObserverOutput::default()));
|
||||
|
||||
let mut_output = Arc::downgrade(&output);
|
||||
let (tx, rx): (mpsc::Sender<()>, mpsc::Receiver<()>) = mpsc::channel();
|
||||
let thread_tx = Mutex::new(tx);
|
||||
let tx_observer = Arc::new(TxObserver::new(registered_attrs, move |obs_key, batch| {
|
||||
if let Some(out) = mut_output.upgrade() {
|
||||
let mut o = out.lock().unwrap();
|
||||
o.called_key = Some(obs_key.to_string());
|
||||
for (tx_id, changes) in batch.into_iter() {
|
||||
o.txids.push(*tx_id);
|
||||
o.changes.push(changes.clone());
|
||||
}
|
||||
o.txids.sort();
|
||||
}
|
||||
thread_tx.lock().unwrap().send(()).unwrap();
|
||||
}));
|
||||
|
||||
conn.register_observer(key.clone(), Arc::clone(&tx_observer));
|
||||
assert!(conn.is_registered_as_observer(&key));
|
||||
|
||||
let tx_ids = Vec::<Entid>::new();
|
||||
let changesets = Vec::<BTreeSet<Entid>>::new();
|
||||
{
|
||||
let mut in_progress = conn.begin_transaction().expect("expected transaction");
|
||||
for i in 0..3 {
|
||||
let name = format!("label{}", i);
|
||||
let mut builder = in_progress.builder().describe_tempid(&name);
|
||||
builder.add_kw(&kw!(:label/name), TypedValue::typed_string(&name)).expect("Expected added name");
|
||||
builder.add_kw(&kw!(:label/color), TypedValue::typed_string("blue")).expect("Expected added color");
|
||||
let (ip, _) = builder.transact();
|
||||
in_progress = ip;
|
||||
}
|
||||
}
|
||||
|
||||
let delay = Duration::from_millis(100);
|
||||
let _ = rx.recv_timeout(delay);
|
||||
|
||||
let out = Arc::try_unwrap(output).expect("unwrapped");
|
||||
let o = out.into_inner().expect("Expected an Output");
|
||||
assert_eq!(o.called_key, None);
|
||||
assert_eq!(o.txids, tx_ids);
|
||||
assert_eq!(o.changes, changesets);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue