Fork of https://github.com/oxigraph/oxigraph.git for the purpose of NextGraph project
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1450 lines
47 KiB
1450 lines
47 KiB
//! Store based on the [Sled](https://sled.rs/) key-value database.
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use crate::error::invalid_data_error;
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use crate::io::{DatasetFormat, GraphFormat};
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use crate::model::*;
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use crate::sparql::{
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evaluate_query, evaluate_update, EvaluationError, Query, QueryOptions, QueryResults, Update,
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};
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use crate::store::binary_encoder::*;
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use crate::store::numeric_encoder::{
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Decoder, ReadEncoder, StrContainer, StrEncodingAware, StrLookup, WriteEncoder,
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};
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use crate::store::{
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dump_dataset, dump_graph, get_encoded_quad_pattern, load_dataset, load_graph,
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ReadableEncodedStore, StoreOrParseError, WritableEncodedStore,
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};
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use sled::transaction::{
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ConflictableTransactionError, TransactionError, Transactional, TransactionalTree,
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UnabortableTransactionError,
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};
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use sled::{Config, Db, Iter, Tree};
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use std::convert::TryInto;
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use std::error::Error;
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use std::io::{BufRead, Write};
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use std::iter::{once, Once};
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use std::path::Path;
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use std::{fmt, io, str};
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/// Store based on the [Sled](https://sled.rs/) key-value database.
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/// It encodes a [RDF dataset](https://www.w3.org/TR/rdf11-concepts/#dfn-rdf-dataset) and allows to query it using SPARQL.
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///
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/// To use it, the `"sled"` feature needs to be activated.
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///
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/// Warning: Sled is not stable yet and might break its storage format.
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///
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/// Usage example:
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/// ```
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/// use oxigraph::SledStore;
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/// use oxigraph::sparql::QueryResults;
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/// use oxigraph::model::*;
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/// # use std::fs::remove_dir_all;
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///
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/// # {
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/// let store = SledStore::open("example.db")?;
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///
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/// // insertion
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/// let ex = NamedNode::new("http://example.com")?;
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/// let quad = Quad::new(ex.clone(), ex.clone(), ex.clone(), None);
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/// store.insert(&quad)?;
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///
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/// // quad filter
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/// let results: Result<Vec<Quad>,_> = store.quads_for_pattern(None, None, None, None).collect();
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/// assert_eq!(vec![quad], results?);
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///
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/// // SPARQL query
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/// if let QueryResults::Solutions(mut solutions) = store.query("SELECT ?s WHERE { ?s ?p ?o }")? {
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/// assert_eq!(solutions.next().unwrap()?.get("s"), Some(&ex.into()));
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/// };
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/// #
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/// # };
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/// # remove_dir_all("example.db")?;
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/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
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/// ```
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#[derive(Clone)]
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pub struct SledStore {
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default: Db,
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id2str: Tree,
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spog: Tree,
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posg: Tree,
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ospg: Tree,
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gspo: Tree,
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gpos: Tree,
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gosp: Tree,
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dspo: Tree,
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dpos: Tree,
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dosp: Tree,
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}
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type EncodedTerm = crate::store::numeric_encoder::EncodedTerm<StrHash>;
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type EncodedQuad = crate::store::numeric_encoder::EncodedQuad<StrHash>;
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//TODO: indexes for the default graph and indexes for the named graphs (no more Optional and space saving)
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impl SledStore {
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/// Creates a temporary [`SledStore`]() that will be deleted after drop.
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pub fn new() -> Result<Self, io::Error> {
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Self::do_open(&Config::new().temporary(true))
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}
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/// Opens a [`SledStore`]() and creates it if it does not exist yet.
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pub fn open(path: impl AsRef<Path>) -> Result<Self, io::Error> {
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Self::do_open(&Config::new().path(path))
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}
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fn do_open(config: &Config) -> Result<Self, io::Error> {
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let db = config.open()?;
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let this = Self {
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default: db.clone(),
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id2str: db.open_tree("id2str")?,
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spog: db.open_tree("spog")?,
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posg: db.open_tree("posg")?,
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ospg: db.open_tree("ospg")?,
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gspo: db.open_tree("gspo")?,
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gpos: db.open_tree("gpos")?,
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gosp: db.open_tree("gosp")?,
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dspo: db.open_tree("dspo")?,
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dpos: db.open_tree("dpos")?,
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dosp: db.open_tree("dosp")?,
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};
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let version = this.ensure_version()?;
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if version != LATEST_STORAGE_VERSION {
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return Err(invalid_data_error(format!(
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"The Sled database is still using the encoding version {}, please upgrade it",
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version
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)));
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}
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Ok(this)
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}
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fn ensure_version(&self) -> Result<u64, io::Error> {
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Ok(if let Some(version) = self.default.get("oxversion")? {
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let mut buffer = [0; 8];
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buffer.copy_from_slice(&version);
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u64::from_be_bytes(buffer)
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} else {
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self.default
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.insert("oxversion", &LATEST_STORAGE_VERSION.to_be_bytes())?;
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LATEST_STORAGE_VERSION
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})
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}
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/// Executes a [SPARQL 1.1 query](https://www.w3.org/TR/sparql11-query/).
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///
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/// See [`MemoryStore`](super::memory::MemoryStore::query()) for a usage example.
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pub fn query(
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&self,
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query: impl TryInto<Query, Error = impl Into<EvaluationError>>,
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) -> Result<QueryResults, EvaluationError> {
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self.query_opt(query, QueryOptions::default())
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}
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/// Executes a [SPARQL 1.1 query](https://www.w3.org/TR/sparql11-query/) with some options.
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pub fn query_opt(
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&self,
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query: impl TryInto<Query, Error = impl Into<EvaluationError>>,
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options: QueryOptions,
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) -> Result<QueryResults, EvaluationError> {
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evaluate_query(self.clone(), query, options)
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}
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/// Retrieves quads with a filter on each quad component
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///
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/// See [`MemoryStore`](super::memory::MemoryStore::quads_for_pattern()) for a usage example.
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pub fn quads_for_pattern(
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&self,
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subject: Option<NamedOrBlankNodeRef<'_>>,
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predicate: Option<NamedNodeRef<'_>>,
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object: Option<TermRef<'_>>,
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graph_name: Option<GraphNameRef<'_>>,
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) -> SledQuadIter {
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SledQuadIter {
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inner: match get_encoded_quad_pattern(self, subject, predicate, object, graph_name) {
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Ok(Some((subject, predicate, object, graph_name))) => QuadIterInner::Quads {
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iter: self.encoded_quads_for_pattern(subject, predicate, object, graph_name),
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store: self.clone(),
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},
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Ok(None) => QuadIterInner::Empty,
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Err(error) => QuadIterInner::Error(once(error)),
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},
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}
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}
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/// Returns all the quads contained in the store
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pub fn iter(&self) -> SledQuadIter {
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self.quads_for_pattern(None, None, None, None)
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}
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/// Checks if this store contains a given quad
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pub fn contains<'a>(&self, quad: impl Into<QuadRef<'a>>) -> Result<bool, io::Error> {
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if let Some(quad) = self.get_encoded_quad(quad.into())? {
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self.contains_encoded(&quad)
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} else {
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Ok(false)
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}
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}
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/// Returns the number of quads in the store
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///
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/// Warning: this function executes a full scan
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pub fn len(&self) -> usize {
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self.gspo.len() + self.dspo.len()
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}
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/// Returns if the store is empty
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pub fn is_empty(&self) -> bool {
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self.gspo.is_empty() && self.dspo.is_empty()
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}
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/// Executes a [SPARQL 1.1 update](https://www.w3.org/TR/sparql11-update/).
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///
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/// The store does not track the existence of empty named graphs.
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/// This method has no ACID guarantees.
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///
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/// See [`MemoryStore`](super::memory::MemoryStore::update()) for a usage example.
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pub fn update(
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&self,
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update: impl TryInto<Update, Error = impl Into<EvaluationError>>,
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) -> Result<(), EvaluationError> {
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evaluate_update(
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self.clone(),
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&mut &*self,
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&update.try_into().map_err(|e| e.into())?,
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)
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}
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/// Executes an ACID transaction.
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///
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/// The transaction is executed if the given closure returns `Ok`.
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/// The transaction is rollbacked if the closure returns `Err`.
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///
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/// Usage example:
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/// ```
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/// use oxigraph::SledStore;
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/// use oxigraph::model::*;
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/// use oxigraph::store::sled::SledConflictableTransactionError;
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/// use std::convert::Infallible;
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///
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/// let store = SledStore::new()?;
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///
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/// let ex = NamedNode::new("http://example.com")?;
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/// let quad = Quad::new(ex.clone(), ex.clone(), ex.clone(), None);
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///
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/// // transaction
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/// store.transaction(|transaction| {
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/// transaction.insert(&quad)?;
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/// Ok(()) as Result<(),SledConflictableTransactionError<Infallible>>
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/// })?;
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///
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/// // quad filter
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/// assert!(store.contains(&quad)?);
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/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
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/// ```
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pub fn transaction<T, E>(
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&self,
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f: impl Fn(SledTransaction<'_>) -> Result<T, SledConflictableTransactionError<E>>,
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) -> Result<T, SledTransactionError<E>> {
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Ok((
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&self.id2str,
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&self.spog,
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&self.posg,
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&self.ospg,
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&self.gspo,
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&self.gpos,
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&self.gosp,
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&self.dspo,
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&self.dpos,
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&self.dosp,
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)
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.transaction(
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move |(id2str, spog, posg, ospg, gspo, gpos, gosp, dspo, dpos, dosp)| {
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Ok(f(SledTransaction {
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id2str,
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spog,
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posg,
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ospg,
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gspo,
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gpos,
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gosp,
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dspo,
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dpos,
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dosp,
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})?)
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},
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)?)
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}
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/// Loads a graph file (i.e. triples) into the store
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///
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/// Warning: This functions saves the triples in a not atomic way. If the parsing fails in the middle of the file,
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/// only a part of it may be written to the store.
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/// Also, this method is optimized for performances and is not atomic.
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/// It might leave the store in a bad state if a crash happens during a triple insertion.
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/// Use a (memory greedy) [transaction](SledStore::transaction()) if you do not want that.
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///
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/// See [`MemoryStore`](super::memory::MemoryStore::load_graph()) for a usage example.
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///
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/// Errors related to parameter validation like the base IRI use the [`InvalidInput`](std::io::ErrorKind::InvalidInput) error kind.
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/// Errors related to a bad syntax in the loaded file use the [`InvalidData`](std::io::ErrorKind::InvalidData) or [`UnexpectedEof`](std::io::ErrorKind::UnexpectedEof) error kinds.
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/// Errors related to data loading into the store use the other error kinds.
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pub fn load_graph<'a>(
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&self,
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reader: impl BufRead,
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format: GraphFormat,
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to_graph_name: impl Into<GraphNameRef<'a>>,
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base_iri: Option<&str>,
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) -> Result<(), io::Error> {
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let mut this = self;
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load_graph(&mut this, reader, format, to_graph_name.into(), base_iri)?;
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Ok(())
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}
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/// Loads a dataset file (i.e. quads) into the store.
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///
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/// Warning: This functions saves the triples in a not atomic way. If the parsing fails in the middle of the file,
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/// only a part of it may be written to the store.
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/// Also, this method is optimized for performances and is not atomic.
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/// It might leave the store in a bad state if a crash happens during a quad insertion.
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/// Use a (memory greedy) [transaction](SledStore::transaction()) if you do not want that.
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///
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/// See [`MemoryStore`](super::memory::MemoryStore::load_dataset()) for a usage example.
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///
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/// Errors related to parameter validation like the base IRI use the [`InvalidInput`](std::io::ErrorKind::InvalidInput) error kind.
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/// Errors related to a bad syntax in the loaded file use the [`InvalidData`](std::io::ErrorKind::InvalidData) or [`UnexpectedEof`](std::io::ErrorKind::UnexpectedEof) error kinds.
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/// Errors related to data loading into the store use the other error kinds.
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pub fn load_dataset(
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&self,
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reader: impl BufRead,
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format: DatasetFormat,
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base_iri: Option<&str>,
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) -> Result<(), io::Error> {
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let mut this = self;
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load_dataset(&mut this, reader, format, base_iri)?;
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Ok(())
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}
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/// Adds a quad to this store.
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///
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/// This method is optimized for performances and is not atomic.
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/// It might leave the store in a bad state if a crash happens during the insertion.
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/// Use a (memory greedy) [transaction](SledStore::transaction()) if you do not want that.
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pub fn insert<'a>(&self, quad: impl Into<QuadRef<'a>>) -> Result<(), io::Error> {
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let mut this = self;
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let quad = this.encode_quad(quad.into())?;
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this.insert_encoded(&quad)
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}
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/// Removes a quad from this store.
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///
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/// This method is optimized for performances and is not atomic.
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/// It might leave the store in a bad state if a crash happens during the removal.
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/// Use a (memory greedy) [transaction](SledStore::transaction()) if you do not want that.
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pub fn remove<'a>(&self, quad: impl Into<QuadRef<'a>>) -> Result<(), io::Error> {
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if let Some(quad) = self.get_encoded_quad(quad.into())? {
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let mut this = self;
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this.remove_encoded(&quad)
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} else {
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Ok(())
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}
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}
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/// Dumps a store graph into a file.
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///
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/// See [`MemoryStore`](super::memory::MemoryStore::dump_graph()) for a usage example.
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pub fn dump_graph<'a>(
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&self,
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writer: impl Write,
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format: GraphFormat,
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from_graph_name: impl Into<GraphNameRef<'a>>,
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) -> Result<(), io::Error> {
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dump_graph(
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self.quads_for_pattern(None, None, None, Some(from_graph_name.into()))
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.map(|q| Ok(q?.into())),
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writer,
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format,
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)
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}
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/// Dumps the store into a file.
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///
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/// See [`MemoryStore`](super::memory::MemoryStore::dump_dataset()) for a usage example.
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pub fn dump_dataset(&self, writer: impl Write, format: DatasetFormat) -> Result<(), io::Error> {
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dump_dataset(self.iter(), writer, format)
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}
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fn contains_encoded(&self, quad: &EncodedQuad) -> Result<bool, io::Error> {
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let mut buffer = Vec::with_capacity(4 * WRITTEN_TERM_MAX_SIZE);
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if quad.graph_name.is_default_graph() {
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write_spo_quad(&mut buffer, quad);
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Ok(self.dspo.contains_key(buffer)?)
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} else {
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write_gspo_quad(&mut buffer, quad);
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Ok(self.gspo.contains_key(buffer)?)
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}
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}
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fn quads(&self) -> DecodingQuadsIterator {
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DecodingQuadsIterator::pair(
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self.dspo_quads(Vec::default()),
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self.gspo_quads(Vec::default()),
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)
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}
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fn quads_for_subject(&self, subject: EncodedTerm) -> DecodingQuadsIterator {
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DecodingQuadsIterator::pair(
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self.dspo_quads(encode_term(subject)),
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self.spog_quads(encode_term(subject)),
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)
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}
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fn quads_for_subject_predicate(
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&self,
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subject: EncodedTerm,
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predicate: EncodedTerm,
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) -> DecodingQuadsIterator {
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DecodingQuadsIterator::pair(
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self.dspo_quads(encode_term_pair(subject, predicate)),
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self.spog_quads(encode_term_pair(subject, predicate)),
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)
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}
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fn quads_for_subject_predicate_object(
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&self,
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subject: EncodedTerm,
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predicate: EncodedTerm,
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object: EncodedTerm,
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) -> DecodingQuadsIterator {
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DecodingQuadsIterator::pair(
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self.dspo_quads(encode_term_triple(subject, predicate, object)),
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self.spog_quads(encode_term_triple(subject, predicate, object)),
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)
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}
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fn quads_for_subject_object(
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&self,
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subject: EncodedTerm,
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object: EncodedTerm,
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) -> DecodingQuadsIterator {
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DecodingQuadsIterator::pair(
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self.dosp_quads(encode_term_pair(object, subject)),
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self.ospg_quads(encode_term_pair(object, subject)),
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)
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}
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fn quads_for_predicate(&self, predicate: EncodedTerm) -> DecodingQuadsIterator {
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DecodingQuadsIterator::pair(
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self.dpos_quads(encode_term(predicate)),
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self.posg_quads(encode_term(predicate)),
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)
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}
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fn quads_for_predicate_object(
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&self,
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predicate: EncodedTerm,
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object: EncodedTerm,
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) -> DecodingQuadsIterator {
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DecodingQuadsIterator::pair(
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self.dpos_quads(encode_term_pair(predicate, object)),
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self.posg_quads(encode_term_pair(predicate, object)),
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)
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}
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fn quads_for_object(&self, object: EncodedTerm) -> DecodingQuadsIterator {
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DecodingQuadsIterator::pair(
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self.dosp_quads(encode_term(object)),
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self.ospg_quads(encode_term(object)),
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)
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}
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fn quads_for_graph(&self, graph_name: EncodedTerm) -> DecodingQuadsIterator {
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DecodingQuadsIterator::new(if graph_name.is_default_graph() {
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self.dspo_quads(Vec::default())
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} else {
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self.gspo_quads(encode_term(graph_name))
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})
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}
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fn quads_for_subject_graph(
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&self,
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subject: EncodedTerm,
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graph_name: EncodedTerm,
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) -> DecodingQuadsIterator {
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DecodingQuadsIterator::new(if graph_name.is_default_graph() {
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self.dspo_quads(encode_term(subject))
|
|
} else {
|
|
self.gspo_quads(encode_term_pair(graph_name, subject))
|
|
})
|
|
}
|
|
|
|
fn quads_for_subject_predicate_graph(
|
|
&self,
|
|
subject: EncodedTerm,
|
|
predicate: EncodedTerm,
|
|
graph_name: EncodedTerm,
|
|
) -> DecodingQuadsIterator {
|
|
DecodingQuadsIterator::new(if graph_name.is_default_graph() {
|
|
self.dspo_quads(encode_term_pair(subject, predicate))
|
|
} else {
|
|
self.gspo_quads(encode_term_triple(graph_name, subject, predicate))
|
|
})
|
|
}
|
|
|
|
fn quads_for_subject_predicate_object_graph(
|
|
&self,
|
|
subject: EncodedTerm,
|
|
predicate: EncodedTerm,
|
|
object: EncodedTerm,
|
|
graph_name: EncodedTerm,
|
|
) -> DecodingQuadsIterator {
|
|
DecodingQuadsIterator::new(if graph_name.is_default_graph() {
|
|
self.dspo_quads(encode_term_triple(subject, predicate, object))
|
|
} else {
|
|
self.gspo_quads(encode_term_quad(graph_name, subject, predicate, object))
|
|
})
|
|
}
|
|
|
|
fn quads_for_subject_object_graph(
|
|
&self,
|
|
subject: EncodedTerm,
|
|
object: EncodedTerm,
|
|
graph_name: EncodedTerm,
|
|
) -> DecodingQuadsIterator {
|
|
DecodingQuadsIterator::new(if graph_name.is_default_graph() {
|
|
self.dosp_quads(encode_term_pair(object, subject))
|
|
} else {
|
|
self.gosp_quads(encode_term_triple(graph_name, object, subject))
|
|
})
|
|
}
|
|
|
|
fn quads_for_predicate_graph(
|
|
&self,
|
|
predicate: EncodedTerm,
|
|
graph_name: EncodedTerm,
|
|
) -> DecodingQuadsIterator {
|
|
DecodingQuadsIterator::new(if graph_name.is_default_graph() {
|
|
self.dpos_quads(encode_term(predicate))
|
|
} else {
|
|
self.gpos_quads(encode_term_pair(graph_name, predicate))
|
|
})
|
|
}
|
|
|
|
fn quads_for_predicate_object_graph(
|
|
&self,
|
|
predicate: EncodedTerm,
|
|
object: EncodedTerm,
|
|
graph_name: EncodedTerm,
|
|
) -> DecodingQuadsIterator {
|
|
DecodingQuadsIterator::new(if graph_name.is_default_graph() {
|
|
self.dpos_quads(encode_term_pair(predicate, object))
|
|
} else {
|
|
self.gpos_quads(encode_term_triple(graph_name, predicate, object))
|
|
})
|
|
}
|
|
|
|
fn quads_for_object_graph(
|
|
&self,
|
|
object: EncodedTerm,
|
|
graph_name: EncodedTerm,
|
|
) -> DecodingQuadsIterator {
|
|
DecodingQuadsIterator::new(if graph_name.is_default_graph() {
|
|
self.dosp_quads(encode_term(object))
|
|
} else {
|
|
self.gosp_quads(encode_term_pair(graph_name, object))
|
|
})
|
|
}
|
|
|
|
fn spog_quads(&self, prefix: Vec<u8>) -> DecodingQuadIterator {
|
|
self.inner_quads(&self.spog, prefix, QuadEncoding::SPOG)
|
|
}
|
|
|
|
fn posg_quads(&self, prefix: Vec<u8>) -> DecodingQuadIterator {
|
|
self.inner_quads(&self.posg, prefix, QuadEncoding::POSG)
|
|
}
|
|
|
|
fn ospg_quads(&self, prefix: Vec<u8>) -> DecodingQuadIterator {
|
|
self.inner_quads(&self.ospg, prefix, QuadEncoding::OSPG)
|
|
}
|
|
|
|
fn gspo_quads(&self, prefix: Vec<u8>) -> DecodingQuadIterator {
|
|
self.inner_quads(&self.gspo, prefix, QuadEncoding::GSPO)
|
|
}
|
|
|
|
fn gpos_quads(&self, prefix: Vec<u8>) -> DecodingQuadIterator {
|
|
self.inner_quads(&self.gpos, prefix, QuadEncoding::GPOS)
|
|
}
|
|
|
|
fn gosp_quads(&self, prefix: Vec<u8>) -> DecodingQuadIterator {
|
|
self.inner_quads(&self.gosp, prefix, QuadEncoding::GOSP)
|
|
}
|
|
|
|
fn dspo_quads(&self, prefix: Vec<u8>) -> DecodingQuadIterator {
|
|
self.inner_quads(&self.dspo, prefix, QuadEncoding::DSPO)
|
|
}
|
|
|
|
fn dpos_quads(&self, prefix: Vec<u8>) -> DecodingQuadIterator {
|
|
self.inner_quads(&self.dpos, prefix, QuadEncoding::DPOS)
|
|
}
|
|
|
|
fn dosp_quads(&self, prefix: Vec<u8>) -> DecodingQuadIterator {
|
|
self.inner_quads(&self.dosp, prefix, QuadEncoding::DOSP)
|
|
}
|
|
|
|
fn inner_quads(
|
|
&self,
|
|
tree: &Tree,
|
|
prefix: impl AsRef<[u8]>,
|
|
encoding: QuadEncoding,
|
|
) -> DecodingQuadIterator {
|
|
DecodingQuadIterator {
|
|
iter: tree.scan_prefix(prefix),
|
|
encoding,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl fmt::Display for SledStore {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
for t in self.iter() {
|
|
writeln!(f, "{}", t.map_err(|_| fmt::Error)?)?;
|
|
}
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
impl StrEncodingAware for SledStore {
|
|
type Error = io::Error;
|
|
type StrId = StrHash;
|
|
}
|
|
|
|
impl StrLookup for SledStore {
|
|
fn get_str(&self, id: StrHash) -> Result<Option<String>, io::Error> {
|
|
self.id2str
|
|
.get(id.to_be_bytes())?
|
|
.map(|v| String::from_utf8(v.to_vec()))
|
|
.transpose()
|
|
.map_err(invalid_data_error)
|
|
}
|
|
|
|
fn get_str_id(&self, value: &str) -> Result<Option<StrHash>, io::Error> {
|
|
let id = StrHash::new(value);
|
|
Ok(if self.id2str.contains_key(&id.to_be_bytes())? {
|
|
Some(id)
|
|
} else {
|
|
None
|
|
})
|
|
}
|
|
}
|
|
|
|
impl ReadableEncodedStore for SledStore {
|
|
type QuadsIter = DecodingQuadsIterator;
|
|
|
|
fn encoded_quads_for_pattern(
|
|
&self,
|
|
subject: Option<EncodedTerm>,
|
|
predicate: Option<EncodedTerm>,
|
|
object: Option<EncodedTerm>,
|
|
graph_name: Option<EncodedTerm>,
|
|
) -> DecodingQuadsIterator {
|
|
match subject {
|
|
Some(subject) => match predicate {
|
|
Some(predicate) => match object {
|
|
Some(object) => match graph_name {
|
|
Some(graph_name) => self.quads_for_subject_predicate_object_graph(
|
|
subject, predicate, object, graph_name,
|
|
),
|
|
None => self.quads_for_subject_predicate_object(subject, predicate, object),
|
|
},
|
|
None => match graph_name {
|
|
Some(graph_name) => {
|
|
self.quads_for_subject_predicate_graph(subject, predicate, graph_name)
|
|
}
|
|
None => self.quads_for_subject_predicate(subject, predicate),
|
|
},
|
|
},
|
|
None => match object {
|
|
Some(object) => match graph_name {
|
|
Some(graph_name) => {
|
|
self.quads_for_subject_object_graph(subject, object, graph_name)
|
|
}
|
|
None => self.quads_for_subject_object(subject, object),
|
|
},
|
|
None => match graph_name {
|
|
Some(graph_name) => self.quads_for_subject_graph(subject, graph_name),
|
|
None => self.quads_for_subject(subject),
|
|
},
|
|
},
|
|
},
|
|
None => match predicate {
|
|
Some(predicate) => match object {
|
|
Some(object) => match graph_name {
|
|
Some(graph_name) => {
|
|
self.quads_for_predicate_object_graph(predicate, object, graph_name)
|
|
}
|
|
None => self.quads_for_predicate_object(predicate, object),
|
|
},
|
|
None => match graph_name {
|
|
Some(graph_name) => self.quads_for_predicate_graph(predicate, graph_name),
|
|
None => self.quads_for_predicate(predicate),
|
|
},
|
|
},
|
|
None => match object {
|
|
Some(object) => match graph_name {
|
|
Some(graph_name) => self.quads_for_object_graph(object, graph_name),
|
|
None => self.quads_for_object(object),
|
|
},
|
|
None => match graph_name {
|
|
Some(graph_name) => self.quads_for_graph(graph_name),
|
|
None => self.quads(),
|
|
},
|
|
},
|
|
},
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> StrContainer for &'a SledStore {
|
|
fn insert_str(&mut self, value: &str) -> Result<StrHash, io::Error> {
|
|
let key = StrHash::new(value);
|
|
self.id2str.insert(key.to_be_bytes().as_ref(), value)?;
|
|
Ok(key)
|
|
}
|
|
}
|
|
|
|
impl<'a> WritableEncodedStore for &'a SledStore {
|
|
fn insert_encoded(&mut self, quad: &EncodedQuad) -> Result<(), io::Error> {
|
|
let mut buffer = Vec::with_capacity(4 * WRITTEN_TERM_MAX_SIZE + 1);
|
|
|
|
if quad.graph_name.is_default_graph() {
|
|
write_spo_quad(&mut buffer, quad);
|
|
self.dspo.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_pos_quad(&mut buffer, quad);
|
|
self.dpos.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_osp_quad(&mut buffer, quad);
|
|
self.dosp.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
} else {
|
|
write_spog_quad(&mut buffer, quad);
|
|
self.spog.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_posg_quad(&mut buffer, quad);
|
|
self.posg.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_ospg_quad(&mut buffer, quad);
|
|
self.ospg.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_gspo_quad(&mut buffer, quad);
|
|
self.gspo.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_gpos_quad(&mut buffer, quad);
|
|
self.gpos.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_gosp_quad(&mut buffer, quad);
|
|
self.gosp.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn remove_encoded(&mut self, quad: &EncodedQuad) -> Result<(), io::Error> {
|
|
let mut buffer = Vec::with_capacity(4 * WRITTEN_TERM_MAX_SIZE + 1);
|
|
|
|
if quad.graph_name.is_default_graph() {
|
|
write_spo_quad(&mut buffer, quad);
|
|
self.dspo.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_pos_quad(&mut buffer, quad);
|
|
self.dpos.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_osp_quad(&mut buffer, quad);
|
|
self.dosp.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
} else {
|
|
write_spog_quad(&mut buffer, quad);
|
|
self.spog.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_posg_quad(&mut buffer, quad);
|
|
self.posg.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_ospg_quad(&mut buffer, quad);
|
|
self.ospg.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_gspo_quad(&mut buffer, quad);
|
|
self.gspo.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_gpos_quad(&mut buffer, quad);
|
|
self.gpos.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_gosp_quad(&mut buffer, quad);
|
|
self.gosp.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
/// Allows inserting and deleting quads during an ACID transaction with the [`SledStore`].
|
|
pub struct SledTransaction<'a> {
|
|
id2str: &'a TransactionalTree,
|
|
spog: &'a TransactionalTree,
|
|
posg: &'a TransactionalTree,
|
|
ospg: &'a TransactionalTree,
|
|
gspo: &'a TransactionalTree,
|
|
gpos: &'a TransactionalTree,
|
|
gosp: &'a TransactionalTree,
|
|
dspo: &'a TransactionalTree,
|
|
dpos: &'a TransactionalTree,
|
|
dosp: &'a TransactionalTree,
|
|
}
|
|
|
|
impl SledTransaction<'_> {
|
|
/// Loads a graph file (i.e. triples) into the store during the transaction.
|
|
///
|
|
/// Warning: Because the load happens during a transaction,
|
|
/// the full file content might be temporarily stored in main memory.
|
|
/// Do not use for big files.
|
|
///
|
|
/// See [`MemoryTransaction`](super::memory::MemoryTransaction::load_graph()) for a usage example.
|
|
///
|
|
/// If the file parsing fails in the middle of the file, the triples read before are still
|
|
/// considered by the transaction. Rollback the transaction by making the transaction closure
|
|
/// return an error if you don't want that.
|
|
///
|
|
/// Errors related to parameter validation like the base IRI use the [`InvalidInput`](std::io::ErrorKind::InvalidInput) error kind.
|
|
/// Errors related to a bad syntax in the loaded file use the [`InvalidData`](std::io::ErrorKind::InvalidData) or [`UnexpectedEof`](std::io::ErrorKind::UnexpectedEof) error kinds.
|
|
pub fn load_graph<'a>(
|
|
&self,
|
|
reader: impl BufRead,
|
|
format: GraphFormat,
|
|
to_graph_name: impl Into<GraphNameRef<'a>>,
|
|
base_iri: Option<&str>,
|
|
) -> Result<(), SledUnabortableTransactionError> {
|
|
let mut this = self;
|
|
load_graph(&mut this, reader, format, to_graph_name.into(), base_iri)?;
|
|
Ok(())
|
|
}
|
|
|
|
/// Loads a dataset file (i.e. quads) into the store. into the store during the transaction.
|
|
///
|
|
/// Warning: Because the load happens during a transaction,
|
|
/// the full file content might be temporarily stored in main memory.
|
|
/// Do not use for big files.
|
|
///
|
|
/// See [`MemoryTransaction`](super::memory::MemoryTransaction::load_dataset()) for a usage example.
|
|
///
|
|
/// If the file parsing fails in the middle of the file, the quads read before are still
|
|
/// considered by the transaction. Rollback the transaction by making the transaction closure
|
|
/// return an error if you don't want that.
|
|
///
|
|
/// Errors related to parameter validation like the base IRI use the [`InvalidInput`](std::io::ErrorKind::InvalidInput) error kind.
|
|
/// Errors related to a bad syntax in the loaded file use the [`InvalidData`](std::io::ErrorKind::InvalidData) or [`UnexpectedEof`](std::io::ErrorKind::UnexpectedEof) error kinds.
|
|
pub fn load_dataset(
|
|
&self,
|
|
reader: impl BufRead,
|
|
format: DatasetFormat,
|
|
base_iri: Option<&str>,
|
|
) -> Result<(), SledUnabortableTransactionError> {
|
|
let mut this = self;
|
|
load_dataset(&mut this, reader, format, base_iri)?;
|
|
Ok(())
|
|
}
|
|
|
|
/// Adds a quad to this store during the transaction.
|
|
pub fn insert<'a>(
|
|
&self,
|
|
quad: impl Into<QuadRef<'a>>,
|
|
) -> Result<(), SledUnabortableTransactionError> {
|
|
let mut this = self;
|
|
let quad = this.encode_quad(quad.into())?;
|
|
this.insert_encoded(&quad)
|
|
}
|
|
|
|
/// Removes a quad from this store during the transaction.
|
|
pub fn remove<'a>(
|
|
&self,
|
|
quad: impl Into<QuadRef<'a>>,
|
|
) -> Result<(), SledUnabortableTransactionError> {
|
|
let mut this = self;
|
|
if let Some(quad) = this.get_encoded_quad(quad.into())? {
|
|
this.remove_encoded(&quad)
|
|
} else {
|
|
Ok(())
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> StrEncodingAware for &'a SledTransaction<'a> {
|
|
type Error = SledUnabortableTransactionError;
|
|
type StrId = StrHash;
|
|
}
|
|
|
|
impl<'a> StrLookup for &'a SledTransaction<'a> {
|
|
fn get_str(&self, id: StrHash) -> Result<Option<String>, SledUnabortableTransactionError> {
|
|
self.id2str
|
|
.get(id.to_be_bytes())?
|
|
.map(|v| String::from_utf8(v.to_vec()))
|
|
.transpose()
|
|
.map_err(|e| SledUnabortableTransactionError::Storage(invalid_data_error(e)))
|
|
}
|
|
|
|
fn get_str_id(&self, value: &str) -> Result<Option<StrHash>, SledUnabortableTransactionError> {
|
|
let id = StrHash::new(value);
|
|
Ok(if self.id2str.get(&id.to_be_bytes())?.is_some() {
|
|
Some(id)
|
|
} else {
|
|
None
|
|
})
|
|
}
|
|
}
|
|
|
|
impl<'a> StrContainer for &'a SledTransaction<'a> {
|
|
fn insert_str(&mut self, value: &str) -> Result<StrHash, SledUnabortableTransactionError> {
|
|
let key = StrHash::new(value);
|
|
self.id2str.insert(key.to_be_bytes().as_ref(), value)?;
|
|
Ok(key)
|
|
}
|
|
}
|
|
|
|
impl<'a> WritableEncodedStore for &'a SledTransaction<'a> {
|
|
fn insert_encoded(
|
|
&mut self,
|
|
quad: &EncodedQuad,
|
|
) -> Result<(), SledUnabortableTransactionError> {
|
|
let mut buffer = Vec::with_capacity(4 * WRITTEN_TERM_MAX_SIZE + 1);
|
|
|
|
if quad.graph_name.is_default_graph() {
|
|
write_spo_quad(&mut buffer, quad);
|
|
self.dspo.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_pos_quad(&mut buffer, quad);
|
|
self.dpos.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_osp_quad(&mut buffer, quad);
|
|
self.dosp.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
} else {
|
|
write_spog_quad(&mut buffer, quad);
|
|
self.spog.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_posg_quad(&mut buffer, quad);
|
|
self.posg.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_ospg_quad(&mut buffer, quad);
|
|
self.ospg.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_gspo_quad(&mut buffer, quad);
|
|
self.gspo.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_gpos_quad(&mut buffer, quad);
|
|
self.gpos.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
|
|
write_gosp_quad(&mut buffer, quad);
|
|
self.gosp.insert(buffer.as_slice(), &[])?;
|
|
buffer.clear();
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn remove_encoded(
|
|
&mut self,
|
|
quad: &EncodedQuad,
|
|
) -> Result<(), SledUnabortableTransactionError> {
|
|
let mut buffer = Vec::with_capacity(4 * WRITTEN_TERM_MAX_SIZE + 1);
|
|
|
|
if quad.graph_name.is_default_graph() {
|
|
write_spo_quad(&mut buffer, quad);
|
|
self.dspo.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_pos_quad(&mut buffer, quad);
|
|
self.dpos.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_osp_quad(&mut buffer, quad);
|
|
self.dosp.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
} else {
|
|
write_spog_quad(&mut buffer, quad);
|
|
self.spog.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_posg_quad(&mut buffer, quad);
|
|
self.posg.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_ospg_quad(&mut buffer, quad);
|
|
self.ospg.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_gspo_quad(&mut buffer, quad);
|
|
self.gspo.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_gpos_quad(&mut buffer, quad);
|
|
self.gpos.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
|
|
write_gosp_quad(&mut buffer, quad);
|
|
self.gosp.remove(buffer.as_slice())?;
|
|
buffer.clear();
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
/// Error returned by a Sled transaction
|
|
#[derive(Debug)]
|
|
pub enum SledTransactionError<T> {
|
|
/// A failure returned by the API user that have aborted the transaction
|
|
Abort(T),
|
|
/// A storage related error
|
|
Storage(io::Error),
|
|
}
|
|
|
|
impl<T: fmt::Display> fmt::Display for SledTransactionError<T> {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
match self {
|
|
Self::Abort(e) => e.fmt(f),
|
|
Self::Storage(e) => e.fmt(f),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T: Error + 'static> Error for SledTransactionError<T> {
|
|
fn source(&self) -> Option<&(dyn Error + 'static)> {
|
|
match self {
|
|
Self::Abort(e) => Some(e),
|
|
Self::Storage(e) => Some(e),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T> From<TransactionError<T>> for SledTransactionError<T> {
|
|
fn from(e: TransactionError<T>) -> Self {
|
|
match e {
|
|
TransactionError::Abort(e) => Self::Abort(e),
|
|
TransactionError::Storage(e) => Self::Storage(e.into()),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T: Into<io::Error>> From<SledTransactionError<T>> for io::Error {
|
|
fn from(e: SledTransactionError<T>) -> Self {
|
|
match e {
|
|
SledTransactionError::Abort(e) => e.into(),
|
|
SledTransactionError::Storage(e) => e,
|
|
}
|
|
}
|
|
}
|
|
|
|
/// An error returned from the transaction methods.
|
|
/// Should be returned as it is
|
|
#[derive(Debug)]
|
|
pub enum SledUnabortableTransactionError {
|
|
#[doc(hidden)]
|
|
Conflict,
|
|
/// A regular error
|
|
Storage(io::Error),
|
|
}
|
|
|
|
impl fmt::Display for SledUnabortableTransactionError {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
match self {
|
|
Self::Conflict => write!(f, "Transaction conflict"),
|
|
Self::Storage(e) => e.fmt(f),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Error for SledUnabortableTransactionError {
|
|
fn source(&self) -> Option<&(dyn Error + 'static)> {
|
|
match self {
|
|
Self::Storage(e) => Some(e),
|
|
_ => None,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl From<SledUnabortableTransactionError> for EvaluationError {
|
|
fn from(e: SledUnabortableTransactionError) -> Self {
|
|
match e {
|
|
SledUnabortableTransactionError::Storage(e) => Self::Io(e),
|
|
SledUnabortableTransactionError::Conflict => Self::Conflict,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl From<StoreOrParseError<SledUnabortableTransactionError>> for SledUnabortableTransactionError {
|
|
fn from(e: StoreOrParseError<SledUnabortableTransactionError>) -> Self {
|
|
match e {
|
|
StoreOrParseError::Store(e) => e,
|
|
StoreOrParseError::Parse(e) => Self::Storage(e),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl From<UnabortableTransactionError> for SledUnabortableTransactionError {
|
|
fn from(e: UnabortableTransactionError) -> Self {
|
|
match e {
|
|
UnabortableTransactionError::Storage(e) => Self::Storage(e.into()),
|
|
UnabortableTransactionError::Conflict => Self::Conflict,
|
|
}
|
|
}
|
|
}
|
|
|
|
/// An error returned from the transaction closure
|
|
#[derive(Debug)]
|
|
pub enum SledConflictableTransactionError<T> {
|
|
/// A failure returned by the user that will abort the transaction
|
|
Abort(T),
|
|
#[doc(hidden)]
|
|
Conflict,
|
|
/// A storage related error
|
|
Storage(io::Error),
|
|
}
|
|
|
|
impl<T: fmt::Display> fmt::Display for SledConflictableTransactionError<T> {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
match self {
|
|
Self::Conflict => write!(f, "Transaction conflict"),
|
|
Self::Storage(e) => e.fmt(f),
|
|
Self::Abort(e) => e.fmt(f),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T: Error + 'static> Error for SledConflictableTransactionError<T> {
|
|
fn source(&self) -> Option<&(dyn Error + 'static)> {
|
|
match self {
|
|
Self::Abort(e) => Some(e),
|
|
Self::Storage(e) => Some(e),
|
|
_ => None,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T> From<SledUnabortableTransactionError> for SledConflictableTransactionError<T> {
|
|
fn from(e: SledUnabortableTransactionError) -> Self {
|
|
match e {
|
|
SledUnabortableTransactionError::Storage(e) => Self::Storage(e),
|
|
SledUnabortableTransactionError::Conflict => Self::Conflict,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T> From<SledConflictableTransactionError<T>> for ConflictableTransactionError<T> {
|
|
fn from(e: SledConflictableTransactionError<T>) -> Self {
|
|
match e {
|
|
SledConflictableTransactionError::Abort(e) => ConflictableTransactionError::Abort(e),
|
|
SledConflictableTransactionError::Conflict => ConflictableTransactionError::Conflict,
|
|
SledConflictableTransactionError::Storage(e) => {
|
|
ConflictableTransactionError::Storage(e.into())
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
pub(crate) struct DecodingQuadsIterator {
|
|
first: DecodingQuadIterator,
|
|
second: Option<DecodingQuadIterator>,
|
|
}
|
|
|
|
impl DecodingQuadsIterator {
|
|
fn new(first: DecodingQuadIterator) -> Self {
|
|
Self {
|
|
first,
|
|
second: None,
|
|
}
|
|
}
|
|
|
|
fn pair(first: DecodingQuadIterator, second: DecodingQuadIterator) -> Self {
|
|
Self {
|
|
first,
|
|
second: Some(second),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Iterator for DecodingQuadsIterator {
|
|
type Item = Result<EncodedQuad, io::Error>;
|
|
|
|
fn next(&mut self) -> Option<Result<EncodedQuad, io::Error>> {
|
|
if let Some(result) = self.first.next() {
|
|
Some(result)
|
|
} else if let Some(second) = self.second.as_mut() {
|
|
second.next()
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
pub(crate) struct DecodingQuadIterator {
|
|
iter: Iter,
|
|
encoding: QuadEncoding,
|
|
}
|
|
|
|
impl Iterator for DecodingQuadIterator {
|
|
type Item = Result<EncodedQuad, io::Error>;
|
|
|
|
fn next(&mut self) -> Option<Result<EncodedQuad, io::Error>> {
|
|
Some(match self.iter.next()? {
|
|
Ok((encoded, _)) => self.encoding.decode(&encoded),
|
|
Err(error) => Err(error.into()),
|
|
})
|
|
}
|
|
}
|
|
|
|
/// An iterator returning the quads contained in a [`SledStore`].
|
|
pub struct SledQuadIter {
|
|
inner: QuadIterInner,
|
|
}
|
|
|
|
enum QuadIterInner {
|
|
Quads {
|
|
iter: DecodingQuadsIterator,
|
|
store: SledStore,
|
|
},
|
|
Error(Once<io::Error>),
|
|
Empty,
|
|
}
|
|
|
|
impl Iterator for SledQuadIter {
|
|
type Item = Result<Quad, io::Error>;
|
|
|
|
fn next(&mut self) -> Option<Result<Quad, io::Error>> {
|
|
match &mut self.inner {
|
|
QuadIterInner::Quads { iter, store } => Some(match iter.next()? {
|
|
Ok(quad) => store.decode_quad(&quad).map_err(|e| e.into()),
|
|
Err(error) => Err(error),
|
|
}),
|
|
QuadIterInner::Error(iter) => iter.next().map(Err),
|
|
QuadIterInner::Empty => None,
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn store() -> Result<(), io::Error> {
|
|
use crate::model::*;
|
|
|
|
let main_s = NamedOrBlankNode::from(BlankNode::default());
|
|
let main_p = NamedNode::new("http://example.com").unwrap();
|
|
let main_o = Term::from(Literal::from(1));
|
|
let main_g = GraphName::from(BlankNode::default());
|
|
|
|
let default_quad = Quad::new(main_s.clone(), main_p.clone(), main_o.clone(), None);
|
|
let named_quad = Quad::new(
|
|
main_s.clone(),
|
|
main_p.clone(),
|
|
main_o.clone(),
|
|
main_g.clone(),
|
|
);
|
|
let default_quads = vec![
|
|
Quad::new(main_s.clone(), main_p.clone(), Literal::from(0), None),
|
|
default_quad.clone(),
|
|
Quad::new(
|
|
main_s.clone(),
|
|
main_p.clone(),
|
|
Literal::from(200000000),
|
|
None,
|
|
),
|
|
];
|
|
let all_quads = vec![
|
|
Quad::new(main_s.clone(), main_p.clone(), Literal::from(0), None),
|
|
default_quad.clone(),
|
|
Quad::new(
|
|
main_s.clone(),
|
|
main_p.clone(),
|
|
Literal::from(200000000),
|
|
None,
|
|
),
|
|
named_quad.clone(),
|
|
];
|
|
|
|
let store = SledStore::new()?;
|
|
for t in &default_quads {
|
|
store.insert(t)?;
|
|
}
|
|
|
|
let result: Result<_, SledTransactionError<io::Error>> = store.transaction(|t| {
|
|
t.remove(&default_quad)?;
|
|
t.insert(&named_quad)?;
|
|
t.insert(&default_quad)?;
|
|
Ok(())
|
|
});
|
|
result?;
|
|
|
|
assert_eq!(store.len(), 4);
|
|
assert_eq!(store.iter().collect::<Result<Vec<_>, _>>()?, all_quads);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(Some(main_s.as_ref()), None, None, None)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
all_quads
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(Some(main_s.as_ref()), Some(main_p.as_ref()), None, None)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
all_quads
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(
|
|
Some(main_s.as_ref()),
|
|
Some(main_p.as_ref()),
|
|
Some(main_o.as_ref()),
|
|
None
|
|
)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
vec![default_quad.clone(), named_quad.clone()]
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(
|
|
Some(main_s.as_ref()),
|
|
Some(main_p.as_ref()),
|
|
Some(main_o.as_ref()),
|
|
Some(GraphNameRef::DefaultGraph)
|
|
)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
vec![default_quad.clone()]
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(
|
|
Some(main_s.as_ref()),
|
|
Some(main_p.as_ref()),
|
|
Some(main_o.as_ref()),
|
|
Some(main_g.as_ref())
|
|
)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
vec![named_quad.clone()]
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(
|
|
Some(main_s.as_ref()),
|
|
Some(main_p.as_ref()),
|
|
None,
|
|
Some(GraphNameRef::DefaultGraph)
|
|
)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
default_quads
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(Some(main_s.as_ref()), None, Some(main_o.as_ref()), None)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
vec![default_quad.clone(), named_quad.clone()]
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(
|
|
Some(main_s.as_ref()),
|
|
None,
|
|
Some(main_o.as_ref()),
|
|
Some(GraphNameRef::DefaultGraph)
|
|
)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
vec![default_quad.clone()]
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(
|
|
Some(main_s.as_ref()),
|
|
None,
|
|
Some(main_o.as_ref()),
|
|
Some(main_g.as_ref())
|
|
)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
vec![named_quad.clone()]
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(
|
|
Some(main_s.as_ref()),
|
|
None,
|
|
None,
|
|
Some(GraphNameRef::DefaultGraph)
|
|
)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
default_quads
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(None, Some(main_p.as_ref()), None, None)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
all_quads
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(None, Some(main_p.as_ref()), Some(main_o.as_ref()), None)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
vec![default_quad.clone(), named_quad.clone()]
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(None, None, Some(main_o.as_ref()), None)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
vec![default_quad.clone(), named_quad.clone()]
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(None, None, None, Some(GraphNameRef::DefaultGraph))
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
default_quads
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(
|
|
None,
|
|
Some(main_p.as_ref()),
|
|
Some(main_o.as_ref()),
|
|
Some(GraphNameRef::DefaultGraph)
|
|
)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
vec![default_quad]
|
|
);
|
|
assert_eq!(
|
|
store
|
|
.quads_for_pattern(
|
|
None,
|
|
Some(main_p.as_ref()),
|
|
Some(main_o.as_ref()),
|
|
Some(main_g.as_ref())
|
|
)
|
|
.collect::<Result<Vec<_>, _>>()?,
|
|
vec![named_quad]
|
|
);
|
|
|
|
Ok(())
|
|
}
|
|
|