mirror of
https://github.com/meilisearch/meilisearch.git
synced 2024-11-22 18:17:39 +08:00
Merge pull request #98 from Kerollmops/updates-with-transactions
Change updates to be handled using the RocksDB WriteBatch feature
This commit is contained in:
Clément Renault
GitHub
commit
4398b88a3a
@ -11,8 +11,8 @@ matrix:
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include:
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# Test crates on their minimum Rust versions.
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- rust: 1.31.0
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name: "meilidb on 1.31.0"
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- rust: 1.32.0
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name: "meilidb on 1.32.0"
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script: ./ci/meilidb.sh
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# Test crates on nightly Rust.
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@ -49,11 +49,6 @@ rand_xorshift = "0.1"
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structopt = "0.2"
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tempfile = "3.0"
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termcolor = "1.0"
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warp = "0.1"
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[dev-dependencies.chashmap]
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git = "https://gitlab.redox-os.org/redox-os/tfs.git"
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rev = "b3e7cae1"
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[profile.release]
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debug = true
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@ -11,7 +11,7 @@ use std::fs::File;
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use serde_derive::{Serialize, Deserialize};
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use structopt::StructOpt;
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use meilidb::database::{Database, Schema, UpdateBuilder};
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use meilidb::database::{Database, Schema};
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use meilidb::tokenizer::DefaultBuilder;
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#[derive(Debug, StructOpt)]
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@ -61,8 +61,7 @@ fn index(
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while !end_of_file {
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let tokenizer_builder = DefaultBuilder::new();
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let update_path = tempfile::NamedTempFile::new()?;
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let mut update = UpdateBuilder::new(update_path.path().to_path_buf(), schema.clone());
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let mut update = database.update()?;
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loop {
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end_of_file = !rdr.read_record(&mut raw_record)?;
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@ -88,10 +87,8 @@ fn index(
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println!();
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println!("building update...");
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let update = update.build()?;
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println!("ingesting update...");
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database.ingest_update_file(update)?;
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println!("committing update...");
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update.commit()?;
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}
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Ok(database)
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@ -1,431 +0,0 @@
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#[global_allocator]
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static ALLOC: jemallocator::Jemalloc = jemallocator::Jemalloc;
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use std::collections::{HashMap, HashSet};
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use std::error::Error;
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use std::ffi::OsStr;
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use std::fmt;
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use std::fs::{self, File};
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use std::io::{self, BufRead, BufReader};
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use std::net::SocketAddr;
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use std::path::{PathBuf, Path};
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use std::sync::Arc;
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use std::time::SystemTime;
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use chashmap::{CHashMap, ReadGuard};
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use elapsed::measure_time;
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use meilidb::database::{Database, UpdateBuilder};
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use meilidb::database::schema::{Schema, SchemaBuilder};
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use meilidb::tokenizer::DefaultBuilder;
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use serde_derive::{Serialize, Deserialize};
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use structopt::StructOpt;
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use warp::{Rejection, Filter};
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use log::{error, info};
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#[derive(Debug, StructOpt)]
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pub struct Opt {
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/// The destination where the database must be created.
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#[structopt(parse(from_os_str))]
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pub database_path: PathBuf,
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/// The address and port to bind the server to.
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#[structopt(short = "l", default_value = "127.0.0.1:8080")]
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pub listen_addr: SocketAddr,
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/// The path to the list of stop words (one by line).
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#[structopt(long = "stop-words", parse(from_os_str))]
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pub stop_words: PathBuf,
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}
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//
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// ERRORS FOR THE MULTIDATABASE
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//
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#[derive(Debug)]
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pub enum DatabaseError {
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AlreadyExist,
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NotExist,
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NotFound(String),
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Unknown(Box<Error>),
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}
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impl fmt::Display for DatabaseError {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self {
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DatabaseError::AlreadyExist => write!(f, "File already exist"),
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DatabaseError::NotExist => write!(f, "File not exist"),
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DatabaseError::NotFound(ref name) => write!(f, "Database {} not found", name),
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DatabaseError::Unknown(e) => write!(f, "{}", e),
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}
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}
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}
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impl Error for DatabaseError {}
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impl From<Box<Error>> for DatabaseError {
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fn from(e: Box<Error>) -> DatabaseError {
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DatabaseError::Unknown(e)
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}
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}
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//
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// MULTIDATABASE DEFINITION
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//
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pub struct MultiDatabase {
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databases: CHashMap<String, Database>,
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db_path: PathBuf,
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stop_words: HashSet<String>,
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}
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impl MultiDatabase {
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pub fn new(path: PathBuf, stop_words: HashSet<String>) -> MultiDatabase {
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MultiDatabase {
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databases: CHashMap::new(),
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db_path: path,
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stop_words: stop_words
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}
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}
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pub fn create(&self, name: String, schema: Schema) -> Result<(), DatabaseError> {
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let rdb_name = format!("{}.mdb", name);
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let database_path = self.db_path.join(rdb_name);
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if database_path.exists() {
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return Err(DatabaseError::AlreadyExist.into());
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}
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let index = Database::create(database_path, &schema)?;
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self.databases.insert_new(name, index);
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Ok(())
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}
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pub fn load(&self, name: String) -> Result<(), DatabaseError> {
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let rdb_name = format!("{}.mdb", name);
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let index_path = self.db_path.join(rdb_name);
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if !index_path.exists() {
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return Err(DatabaseError::NotExist.into());
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}
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let index = Database::open(index_path)?;
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self.databases.insert_new(name, index);
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Ok(())
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}
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pub fn load_existing(&self) {
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let paths = match fs::read_dir(self.db_path.clone()){
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Ok(p) => p,
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Err(e) => {
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error!("{}", e);
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return
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}
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};
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for path in paths {
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let path = match path {
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Ok(p) => p.path(),
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Err(_) => continue
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};
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let path_str = match path.to_str() {
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Some(p) => p,
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None => continue
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};
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let extension = match get_extension_from_path(path_str) {
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Some(e) => e,
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None => continue
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};
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if extension != "mdb" {
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continue
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}
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let name = match get_file_name_from_path(path_str) {
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Some(f) => f,
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None => continue
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};
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let db = match Database::open(path.clone()) {
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Ok(db) => db,
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Err(_) => continue
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};
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self.databases.insert_new(name.to_string(), db);
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info!("Load database {}", name);
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}
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}
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pub fn create_or_load(&self, name: String, schema: Schema) -> Result<(), DatabaseError> {
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match self.create(name.clone(), schema) {
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Err(DatabaseError::AlreadyExist) => self.load(name),
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x => x,
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}
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}
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pub fn get(&self, name: String) -> Result<ReadGuard<String, Database>, Box<Error>> {
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Ok(self.databases.get(&name).ok_or(DatabaseError::NotFound(name))?)
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}
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}
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fn get_extension_from_path(path: &str) -> Option<&str> {
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Path::new(path).extension().and_then(OsStr::to_str)
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}
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fn get_file_name_from_path(path: &str) -> Option<&str> {
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Path::new(path).file_stem().and_then(OsStr::to_str)
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}
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fn retrieve_stop_words(path: &Path) -> io::Result<HashSet<String>> {
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let f = File::open(path)?;
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let reader = BufReader::new(f);
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let mut words = HashSet::new();
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for line in reader.lines() {
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let line = line?;
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let word = line.trim().to_string();
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words.insert(word);
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}
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Ok(words)
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}
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//
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// PARAMS & BODY FOR HTTPS HANDLERS
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//
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#[derive(Deserialize)]
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struct CreateBody {
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name: String,
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schema: SchemaBuilder,
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}
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#[derive(Deserialize)]
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struct IngestBody {
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insert: Option<Vec<HashMap<String, String>>>,
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delete: Option<Vec<HashMap<String, String>>>
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}
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#[derive(Serialize)]
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struct IngestResponse {
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inserted: usize,
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deleted: usize
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}
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#[derive(Deserialize)]
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struct SearchQuery {
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q: String,
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limit: Option<usize>,
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}
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//
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// HTTP ROUTES
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//
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// Create a new index.
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// The index name should be unused and the schema valid.
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//
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// POST /create
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// Body:
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// - name: String
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// - schema: JSON
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// - stopwords: Vec<String>
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fn create(body: CreateBody, db: Arc<MultiDatabase>) -> Result<String, Rejection> {
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let schema = body.schema.build();
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match db.create(body.name.clone(), schema) {
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Ok(_) => Ok(format!("{} created ", body.name)),
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Err(e) => {
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error!("{:?}", e);
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return Err(warp::reject::not_found())
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}
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}
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}
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// Ingest new document.
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// It's possible to have positive or/and negative updates.
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//
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// PUT /:name/ingest
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// Body:
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// - insert: Option<Vec<JSON>>
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// - delete: Option<Vec<String>>
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fn ingest(index_name: String, body: IngestBody, db: Arc<MultiDatabase>) -> Result<String, Rejection> {
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let schema = {
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let index = match db.get(index_name.clone()){
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Ok(i) => i,
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Err(_) => return Err(warp::reject::not_found()),
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};
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let view = index.view();
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view.schema().clone()
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};
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let tokenizer_builder = DefaultBuilder::new();
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let now = match SystemTime::now().duration_since(SystemTime::UNIX_EPOCH) {
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Ok(n) => n.as_secs(),
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Err(_) => panic!("SystemTime before UNIX EPOCH!"),
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};
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let sst_name = format!("update-{}-{}.sst", index_name, now);
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let sst_path = db.db_path.join(sst_name);
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let mut response = IngestResponse{inserted: 0, deleted: 0};
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let mut update = UpdateBuilder::new(sst_path, schema);
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if let Some(documents) = body.delete {
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for doc in documents {
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if let Err(e) = update.remove_document(doc) {
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error!("Impossible to remove document; {:?}", e);
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} else {
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response.deleted += 1;
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}
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}
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}
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let stop_words = &db.stop_words;
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if let Some(documents) = body.insert {
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for doc in documents {
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if let Err(e) = update.update_document(doc, &tokenizer_builder, &stop_words) {
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error!("Impossible to update document; {:?}", e);
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} else {
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response.inserted += 1;
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}
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}
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}
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let update = match update.build() {
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Ok(u) => u,
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Err(e) => {
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error!("Impossible to create an update file; {:?}", e);
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return Err(warp::reject::not_found())
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}
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};
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{
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let index = match db.get(index_name.clone()){
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Ok(i) => i,
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Err(_) => return Err(warp::reject::not_found()),
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};
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if let Err(e) = index.ingest_update_file(update) {
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error!("Impossible to ingest sst file; {:?}", e);
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return Err(warp::reject::not_found())
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};
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}
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if let Ok(response) = serde_json::to_string(&response) {
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return Ok(response);
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};
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return Err(warp::reject::not_found())
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}
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// Search in a specific index
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// The default limit is 20
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//
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// GET /:name/search
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// Params:
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// - query: String
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// - limit: Option<usize>
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fn search(index_name: String, query: SearchQuery, db: Arc<MultiDatabase>) -> Result<String, Rejection> {
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let view = {
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let index = match db.get(index_name.clone()){
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Ok(i) => i,
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Err(_) => return Err(warp::reject::not_found()),
|
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};
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index.view()
|
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};
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let limit = query.limit.unwrap_or(20);
|
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let query_builder = match view.query_builder() {
|
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Ok(q) => q,
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Err(_err) => return Err(warp::reject::not_found()),
|
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};
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|
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let (time, responses) = measure_time(|| {
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let docs = query_builder.query(&query.q, 0..limit);
|
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let mut results: Vec<HashMap<String, String>> = Vec::with_capacity(limit);
|
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for doc in docs {
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match view.document_by_id(doc.id) {
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Ok(val) => results.push(val),
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Err(e) => println!("{:?}", e),
|
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}
|
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}
|
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results
|
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});
|
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|
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let response = match serde_json::to_string(&responses) {
|
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Ok(val) => val,
|
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Err(err) => format!("{:?}", err),
|
||||
};
|
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|
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info!("index: {} - search: {:?} - limit: {} - time: {}", index_name, query.q, limit, time);
|
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Ok(response)
|
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}
|
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|
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fn start_server(listen_addr: SocketAddr, db: Arc<MultiDatabase>) {
|
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let index_path = warp::path("index").and(warp::path::param::<String>());
|
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let db = warp::any().map(move || db.clone());
|
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|
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let create_path = warp::path("create").and(warp::path::end());
|
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let ingest_path = index_path.and(warp::path("ingest")).and(warp::path::end());
|
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let search_path = index_path.and(warp::path("search")).and(warp::path::end());
|
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|
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let create = warp::post2()
|
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.and(create_path)
|
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.and(warp::body::json())
|
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.and(db.clone())
|
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.and_then(create);
|
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|
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let ingest = warp::put2()
|
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.and(ingest_path)
|
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.and(warp::body::json())
|
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.and(db.clone())
|
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.and_then(ingest);
|
||||
|
||||
let search = warp::get2()
|
||||
.and(search_path)
|
||||
.and(warp::query())
|
||||
.and(db.clone())
|
||||
.and_then(search);
|
||||
|
||||
let api = create
|
||||
.or(ingest)
|
||||
.or(search);
|
||||
|
||||
let logs = warp::log("server");
|
||||
let headers = warp::reply::with::header("Content-Type", "application/json");
|
||||
|
||||
let routes = api.with(logs).with(headers);
|
||||
|
||||
info!("Server is started on {}", listen_addr);
|
||||
warp::serve(routes).run(listen_addr);
|
||||
}
|
||||
|
||||
fn main() {
|
||||
env_logger::init();
|
||||
let opt = Opt::from_args();
|
||||
|
||||
let stop_words = match retrieve_stop_words(&opt.stop_words) {
|
||||
Ok(s) => s,
|
||||
Err(_) => HashSet::new(),
|
||||
};
|
||||
|
||||
let db = Arc::new(MultiDatabase::new(opt.database_path.clone(), stop_words));
|
||||
|
||||
db.load_existing();
|
||||
|
||||
start_server(opt.listen_addr, db);
|
||||
}
|
||||
|
||||
|
||||
@ -38,6 +38,10 @@ impl DocumentKey {
|
||||
DocumentKeyAttr::new(self.document_id(), attr)
|
||||
}
|
||||
|
||||
pub fn with_attribute_min(&self) -> DocumentKeyAttr {
|
||||
DocumentKeyAttr::new(self.document_id(), SchemaAttr::min())
|
||||
}
|
||||
|
||||
pub fn with_attribute_max(&self) -> DocumentKeyAttr {
|
||||
DocumentKeyAttr::new(self.document_id(), SchemaAttr::max())
|
||||
}
|
||||
|
||||
@ -1,17 +1,17 @@
|
||||
use std::sync::{Arc, Mutex};
|
||||
use std::error::Error;
|
||||
use std::ops::Deref;
|
||||
use std::path::Path;
|
||||
use std::ops::Deref;
|
||||
use std::sync::Arc;
|
||||
|
||||
use rocksdb::rocksdb_options::{DBOptions, IngestExternalFileOptions, ColumnFamilyOptions};
|
||||
use rocksdb::rocksdb_options::{DBOptions, ColumnFamilyOptions};
|
||||
use rocksdb::rocksdb::{Writable, Snapshot};
|
||||
use rocksdb::{DB, DBVector, MergeOperands};
|
||||
use rocksdb::{DB, MergeOperands};
|
||||
use crossbeam::atomic::ArcCell;
|
||||
use log::info;
|
||||
|
||||
pub use self::document_key::{DocumentKey, DocumentKeyAttr};
|
||||
pub use self::view::{DatabaseView, DocumentIter};
|
||||
pub use self::update::{Update, UpdateBuilder};
|
||||
pub use self::update::Update;
|
||||
pub use self::serde::SerializerError;
|
||||
pub use self::schema::Schema;
|
||||
pub use self::index::Index;
|
||||
@ -78,11 +78,7 @@ fn merge_indexes(key: &[u8], existing: Option<&[u8]>, operands: &mut MergeOperan
|
||||
}
|
||||
|
||||
pub struct Database {
|
||||
// DB is under a Mutex to sync update ingestions and separate DB update locking
|
||||
// and DatabaseView acquiring locking in other words:
|
||||
// "Block readers the minimum possible amount of time"
|
||||
db: Mutex<Arc<DB>>,
|
||||
|
||||
db: Arc<DB>,
|
||||
// This view is updated each time the DB ingests an update
|
||||
view: ArcCell<DatabaseView<Arc<DB>>>,
|
||||
}
|
||||
@ -113,7 +109,7 @@ impl Database {
|
||||
let snapshot = Snapshot::new(db.clone());
|
||||
let view = ArcCell::new(Arc::new(DatabaseView::new(snapshot)?));
|
||||
|
||||
Ok(Database { db: Mutex::new(db), view })
|
||||
Ok(Database { db, view })
|
||||
}
|
||||
|
||||
pub fn open<P: AsRef<Path>>(path: P) -> Result<Database, Box<Error>> {
|
||||
@ -137,49 +133,16 @@ impl Database {
|
||||
let snapshot = Snapshot::new(db.clone());
|
||||
let view = ArcCell::new(Arc::new(DatabaseView::new(snapshot)?));
|
||||
|
||||
Ok(Database { db: Mutex::new(db), view })
|
||||
Ok(Database { db, view })
|
||||
}
|
||||
|
||||
pub fn ingest_update_file(&self, update: Update) -> Result<Arc<DatabaseView<Arc<DB>>>, Box<Error>> {
|
||||
let snapshot = {
|
||||
// We must have a mutex here to ensure that update ingestions and compactions
|
||||
// are done atomatically and in the right order.
|
||||
// This way update ingestions will block other update ingestions without blocking view
|
||||
// creations while doing the "data-index" compaction
|
||||
let db = match self.db.lock() {
|
||||
Ok(db) => db,
|
||||
Err(e) => return Err(e.to_string().into()),
|
||||
};
|
||||
|
||||
let path = update.path().to_string_lossy();
|
||||
let options = IngestExternalFileOptions::new();
|
||||
// options.move_files(move_update);
|
||||
|
||||
let (elapsed, result) = elapsed::measure_time(|| {
|
||||
let cf_handle = db.cf_handle("default").expect("\"default\" column family not found");
|
||||
db.ingest_external_file_optimized(&cf_handle, &options, &[&path])
|
||||
});
|
||||
let _ = result?;
|
||||
info!("ingesting update file took {}", elapsed);
|
||||
|
||||
Snapshot::new(db.clone())
|
||||
pub fn update(&self) -> Result<Update, Box<Error>> {
|
||||
let schema = match self.db.get(DATA_SCHEMA)? {
|
||||
Some(value) => Schema::read_from_bin(&*value)?,
|
||||
None => panic!("Database does not contain a schema"),
|
||||
};
|
||||
|
||||
let view = Arc::new(DatabaseView::new(snapshot)?);
|
||||
self.view.set(view.clone());
|
||||
|
||||
Ok(view)
|
||||
}
|
||||
|
||||
pub fn get(&self, key: &[u8]) -> Result<Option<DBVector>, Box<Error>> {
|
||||
self.view().get(key)
|
||||
}
|
||||
|
||||
pub fn flush(&self) -> Result<(), Box<Error>> {
|
||||
match self.db.lock() {
|
||||
Ok(db) => Ok(db.flush(true)?),
|
||||
Err(e) => Err(e.to_string().into()),
|
||||
}
|
||||
Ok(Update::new(self, schema))
|
||||
}
|
||||
|
||||
pub fn view(&self) -> Arc<DatabaseView<Arc<DB>>> {
|
||||
@ -193,20 +156,18 @@ mod tests {
|
||||
use std::error::Error;
|
||||
|
||||
use serde_derive::{Serialize, Deserialize};
|
||||
use tempfile::tempdir;
|
||||
|
||||
use crate::database::schema::{SchemaBuilder, STORED, INDEXED};
|
||||
use crate::database::update::UpdateBuilder;
|
||||
use crate::tokenizer::DefaultBuilder;
|
||||
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn ingest_one_update_file() -> Result<(), Box<Error>> {
|
||||
let dir = tempdir()?;
|
||||
fn ingest_one_easy_update() -> Result<(), Box<Error>> {
|
||||
let dir = tempfile::tempdir()?;
|
||||
let stop_words = HashSet::new();
|
||||
|
||||
let rocksdb_path = dir.path().join("rocksdb.rdb");
|
||||
let meilidb_path = dir.path().join("meilidb.mdb");
|
||||
|
||||
#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq)]
|
||||
struct SimpleDoc {
|
||||
@ -225,9 +186,7 @@ mod tests {
|
||||
builder.build()
|
||||
};
|
||||
|
||||
let database = Database::create(&rocksdb_path, &schema)?;
|
||||
|
||||
let update_path = dir.path().join("update.sst");
|
||||
let database = Database::create(&meilidb_path, &schema)?;
|
||||
|
||||
let doc0 = SimpleDoc {
|
||||
id: 0,
|
||||
@ -242,20 +201,13 @@ mod tests {
|
||||
timestamp: 7654321,
|
||||
};
|
||||
|
||||
let docid0;
|
||||
let docid1;
|
||||
let update = {
|
||||
let tokenizer_builder = DefaultBuilder::new();
|
||||
let mut builder = UpdateBuilder::new(update_path, schema);
|
||||
let tokenizer_builder = DefaultBuilder::new();
|
||||
let mut builder = database.update()?;
|
||||
|
||||
docid0 = builder.update_document(&doc0, &tokenizer_builder, &stop_words)?;
|
||||
docid1 = builder.update_document(&doc1, &tokenizer_builder, &stop_words)?;
|
||||
let docid0 = builder.update_document(&doc0, &tokenizer_builder, &stop_words)?;
|
||||
let docid1 = builder.update_document(&doc1, &tokenizer_builder, &stop_words)?;
|
||||
|
||||
builder.build()?
|
||||
};
|
||||
|
||||
database.ingest_update_file(update)?;
|
||||
let view = database.view();
|
||||
let view = builder.commit()?;
|
||||
|
||||
let de_doc0: SimpleDoc = view.document_by_id(docid0)?;
|
||||
let de_doc1: SimpleDoc = view.document_by_id(docid1)?;
|
||||
@ -267,11 +219,11 @@ mod tests {
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn ingest_two_update_files() -> Result<(), Box<Error>> {
|
||||
let dir = tempdir()?;
|
||||
fn ingest_two_easy_updates() -> Result<(), Box<Error>> {
|
||||
let dir = tempfile::tempdir()?;
|
||||
let stop_words = HashSet::new();
|
||||
|
||||
let rocksdb_path = dir.path().join("rocksdb.rdb");
|
||||
let meilidb_path = dir.path().join("meilidb.mdb");
|
||||
|
||||
#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq)]
|
||||
struct SimpleDoc {
|
||||
@ -290,7 +242,7 @@ mod tests {
|
||||
builder.build()
|
||||
};
|
||||
|
||||
let database = Database::create(&rocksdb_path, &schema)?;
|
||||
let database = Database::create(&meilidb_path, &schema)?;
|
||||
|
||||
let doc0 = SimpleDoc {
|
||||
id: 0,
|
||||
@ -317,36 +269,17 @@ mod tests {
|
||||
timestamp: 7654321,
|
||||
};
|
||||
|
||||
let docid0;
|
||||
let docid1;
|
||||
let update1 = {
|
||||
let tokenizer_builder = DefaultBuilder::new();
|
||||
let update_path = dir.path().join("update-000.sst");
|
||||
let mut builder = UpdateBuilder::new(update_path, schema.clone());
|
||||
let tokenizer_builder = DefaultBuilder::new();
|
||||
|
||||
docid0 = builder.update_document(&doc0, &tokenizer_builder, &stop_words)?;
|
||||
docid1 = builder.update_document(&doc1, &tokenizer_builder, &stop_words)?;
|
||||
let mut builder = database.update()?;
|
||||
let docid0 = builder.update_document(&doc0, &tokenizer_builder, &stop_words)?;
|
||||
let docid1 = builder.update_document(&doc1, &tokenizer_builder, &stop_words)?;
|
||||
builder.commit()?;
|
||||
|
||||
builder.build()?
|
||||
};
|
||||
|
||||
let docid2;
|
||||
let docid3;
|
||||
let update2 = {
|
||||
let tokenizer_builder = DefaultBuilder::new();
|
||||
let update_path = dir.path().join("update-001.sst");
|
||||
let mut builder = UpdateBuilder::new(update_path, schema);
|
||||
|
||||
docid2 = builder.update_document(&doc2, &tokenizer_builder, &stop_words)?;
|
||||
docid3 = builder.update_document(&doc3, &tokenizer_builder, &stop_words)?;
|
||||
|
||||
builder.build()?
|
||||
};
|
||||
|
||||
database.ingest_update_file(update1)?;
|
||||
database.ingest_update_file(update2)?;
|
||||
|
||||
let view = database.view();
|
||||
let mut builder = database.update()?;
|
||||
let docid2 = builder.update_document(&doc2, &tokenizer_builder, &stop_words)?;
|
||||
let docid3 = builder.update_document(&doc3, &tokenizer_builder, &stop_words)?;
|
||||
let view = builder.commit()?;
|
||||
|
||||
let de_doc0: SimpleDoc = view.document_by_id(docid0)?;
|
||||
let de_doc1: SimpleDoc = view.document_by_id(docid1)?;
|
||||
@ -380,7 +313,6 @@ mod bench {
|
||||
use rand::seq::SliceRandom;
|
||||
|
||||
use crate::tokenizer::DefaultBuilder;
|
||||
use crate::database::update::UpdateBuilder;
|
||||
use crate::database::schema::*;
|
||||
|
||||
use super::*;
|
||||
@ -425,9 +357,8 @@ mod bench {
|
||||
description: String,
|
||||
}
|
||||
|
||||
let path = dir.path().join("update-000.sst");
|
||||
let tokenizer_builder = DefaultBuilder;
|
||||
let mut builder = UpdateBuilder::new(path, schema);
|
||||
let mut builder = database.update()?;
|
||||
let mut rng = XorShiftRng::seed_from_u64(42);
|
||||
|
||||
for i in 0..300 {
|
||||
@ -439,8 +370,7 @@ mod bench {
|
||||
builder.update_document(&document, &tokenizer_builder, &stop_words)?;
|
||||
}
|
||||
|
||||
let update = builder.build()?;
|
||||
database.ingest_update_file(update)?;
|
||||
builder.commit()?;
|
||||
|
||||
drop(database);
|
||||
|
||||
@ -472,9 +402,8 @@ mod bench {
|
||||
description: String,
|
||||
}
|
||||
|
||||
let path = dir.path().join("update-000.sst");
|
||||
let tokenizer_builder = DefaultBuilder;
|
||||
let mut builder = UpdateBuilder::new(path, schema);
|
||||
let mut builder = database.update()?;
|
||||
let mut rng = XorShiftRng::seed_from_u64(42);
|
||||
|
||||
for i in 0..3000 {
|
||||
@ -486,8 +415,7 @@ mod bench {
|
||||
builder.update_document(&document, &tokenizer_builder, &stop_words)?;
|
||||
}
|
||||
|
||||
let update = builder.build()?;
|
||||
database.ingest_update_file(update)?;
|
||||
builder.commit()?;
|
||||
|
||||
drop(database);
|
||||
|
||||
@ -520,9 +448,8 @@ mod bench {
|
||||
description: String,
|
||||
}
|
||||
|
||||
let path = dir.path().join("update-000.sst");
|
||||
let tokenizer_builder = DefaultBuilder;
|
||||
let mut builder = UpdateBuilder::new(path, schema);
|
||||
let mut builder = database.update()?;
|
||||
let mut rng = XorShiftRng::seed_from_u64(42);
|
||||
|
||||
for i in 0..30_000 {
|
||||
@ -534,8 +461,7 @@ mod bench {
|
||||
builder.update_document(&document, &tokenizer_builder, &stop_words)?;
|
||||
}
|
||||
|
||||
let update = builder.build()?;
|
||||
database.ingest_update_file(update)?;
|
||||
builder.commit()?;
|
||||
|
||||
drop(database);
|
||||
|
||||
@ -567,9 +493,8 @@ mod bench {
|
||||
description: String,
|
||||
}
|
||||
|
||||
let path = dir.path().join("update-000.sst");
|
||||
let tokenizer_builder = DefaultBuilder;
|
||||
let mut builder = UpdateBuilder::new(path, schema);
|
||||
let mut builder = database.update()?;
|
||||
let mut rng = XorShiftRng::seed_from_u64(42);
|
||||
|
||||
for i in 0..300 {
|
||||
@ -581,8 +506,7 @@ mod bench {
|
||||
builder.update_document(&document, &tokenizer_builder, &stop_words)?;
|
||||
}
|
||||
|
||||
let update = builder.build()?;
|
||||
let view = database.ingest_update_file(update)?;
|
||||
let view = builder.commit()?;
|
||||
|
||||
bench.iter(|| {
|
||||
for q in &["a", "b", "c", "d", "e"] {
|
||||
@ -614,9 +538,8 @@ mod bench {
|
||||
description: String,
|
||||
}
|
||||
|
||||
let path = dir.path().join("update-000.sst");
|
||||
let tokenizer_builder = DefaultBuilder;
|
||||
let mut builder = UpdateBuilder::new(path, schema);
|
||||
let mut builder = database.update()?;
|
||||
let mut rng = XorShiftRng::seed_from_u64(42);
|
||||
|
||||
for i in 0..3000 {
|
||||
@ -628,8 +551,7 @@ mod bench {
|
||||
builder.update_document(&document, &tokenizer_builder, &stop_words)?;
|
||||
}
|
||||
|
||||
let update = builder.build()?;
|
||||
let view = database.ingest_update_file(update)?;
|
||||
let view = builder.commit()?;
|
||||
|
||||
bench.iter(|| {
|
||||
for q in &["a", "b", "c", "d", "e"] {
|
||||
@ -662,9 +584,8 @@ mod bench {
|
||||
description: String,
|
||||
}
|
||||
|
||||
let path = dir.path().join("update-000.sst");
|
||||
let tokenizer_builder = DefaultBuilder;
|
||||
let mut builder = UpdateBuilder::new(path, schema);
|
||||
let mut builder = database.update()?;
|
||||
let mut rng = XorShiftRng::seed_from_u64(42);
|
||||
|
||||
for i in 0..30_000 {
|
||||
@ -676,8 +597,7 @@ mod bench {
|
||||
builder.update_document(&document, &tokenizer_builder, &stop_words)?;
|
||||
}
|
||||
|
||||
let update = builder.build()?;
|
||||
let view = database.ingest_update_file(update)?;
|
||||
let view = builder.commit()?;
|
||||
|
||||
bench.iter(|| {
|
||||
for q in &["a", "b", "c", "d", "e"] {
|
||||
|
||||
@ -10,15 +10,15 @@ use crate::tokenizer::TokenizerBuilder;
|
||||
use crate::tokenizer::Token;
|
||||
use crate::{DocumentId, DocIndex};
|
||||
|
||||
pub struct IndexerSerializer<'a, B> {
|
||||
pub struct IndexerSerializer<'a, 'b, B> {
|
||||
pub tokenizer_builder: &'a B,
|
||||
pub update: &'a mut DocumentUpdate,
|
||||
pub update: &'a mut DocumentUpdate<'b>,
|
||||
pub document_id: DocumentId,
|
||||
pub attribute: SchemaAttr,
|
||||
pub stop_words: &'a HashSet<String>,
|
||||
}
|
||||
|
||||
impl<'a, B> ser::Serializer for IndexerSerializer<'a, B>
|
||||
impl<'a, 'b, B> ser::Serializer for IndexerSerializer<'a, 'b, B>
|
||||
where B: TokenizerBuilder
|
||||
{
|
||||
type Ok = ();
|
||||
@ -71,14 +71,14 @@ where B: TokenizerBuilder
|
||||
let char_length = length;
|
||||
|
||||
let doc_index = DocIndex { document_id, attribute, word_index, char_index, char_length };
|
||||
self.update.insert_doc_index(word_unidecoded.into_bytes(), doc_index);
|
||||
self.update.insert_doc_index(word_unidecoded.into_bytes(), doc_index)?;
|
||||
}
|
||||
|
||||
let char_index = char_index as u32;
|
||||
let char_length = length;
|
||||
|
||||
let doc_index = DocIndex { document_id, attribute, word_index, char_index, char_length };
|
||||
self.update.insert_doc_index(word_lower.into_bytes(), doc_index);
|
||||
self.update.insert_doc_index(word_lower.into_bytes(), doc_index)?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
@ -56,3 +56,9 @@ impl fmt::Display for SerializerError {
|
||||
}
|
||||
|
||||
impl Error for SerializerError {}
|
||||
|
||||
impl From<String> for SerializerError {
|
||||
fn from(value: String) -> SerializerError {
|
||||
SerializerError::Custom(value)
|
||||
}
|
||||
}
|
||||
|
||||
@ -11,15 +11,15 @@ use crate::tokenizer::TokenizerBuilder;
|
||||
use crate::database::schema::Schema;
|
||||
use crate::DocumentId;
|
||||
|
||||
pub struct Serializer<'a, B> {
|
||||
pub struct Serializer<'a, 'b, B> {
|
||||
pub schema: &'a Schema,
|
||||
pub update: &'a mut DocumentUpdate,
|
||||
pub update: &'a mut DocumentUpdate<'b>,
|
||||
pub document_id: DocumentId,
|
||||
pub tokenizer_builder: &'a B,
|
||||
pub stop_words: &'a HashSet<String>,
|
||||
}
|
||||
|
||||
impl<'a, B> ser::Serializer for Serializer<'a, B>
|
||||
impl<'a, 'b, B> ser::Serializer for Serializer<'a, 'b, B>
|
||||
where B: TokenizerBuilder
|
||||
{
|
||||
type Ok = ();
|
||||
@ -28,8 +28,8 @@ where B: TokenizerBuilder
|
||||
type SerializeTuple = ser::Impossible<Self::Ok, Self::Error>;
|
||||
type SerializeTupleStruct = ser::Impossible<Self::Ok, Self::Error>;
|
||||
type SerializeTupleVariant = ser::Impossible<Self::Ok, Self::Error>;
|
||||
type SerializeMap = MapSerializer<'a, B>;
|
||||
type SerializeStruct = StructSerializer<'a, B>;
|
||||
type SerializeMap = MapSerializer<'a, 'b, B>;
|
||||
type SerializeStruct = StructSerializer<'a, 'b, B>;
|
||||
type SerializeStructVariant = ser::Impossible<Self::Ok, Self::Error>;
|
||||
|
||||
forward_to_unserializable_type! {
|
||||
@ -174,16 +174,16 @@ where B: TokenizerBuilder
|
||||
}
|
||||
}
|
||||
|
||||
pub struct MapSerializer<'a, B> {
|
||||
pub struct MapSerializer<'a, 'b, B> {
|
||||
pub schema: &'a Schema,
|
||||
pub document_id: DocumentId,
|
||||
pub update: &'a mut DocumentUpdate,
|
||||
pub update: &'a mut DocumentUpdate<'b>,
|
||||
pub tokenizer_builder: &'a B,
|
||||
pub stop_words: &'a HashSet<String>,
|
||||
pub current_key_name: Option<String>,
|
||||
}
|
||||
|
||||
impl<'a, B> ser::SerializeMap for MapSerializer<'a, B>
|
||||
impl<'a, 'b, B> ser::SerializeMap for MapSerializer<'a, 'b, B>
|
||||
where B: TokenizerBuilder
|
||||
{
|
||||
type Ok = ();
|
||||
@ -207,7 +207,7 @@ where B: TokenizerBuilder
|
||||
fn serialize_entry<K: ?Sized, V: ?Sized>(
|
||||
&mut self,
|
||||
key: &K,
|
||||
value: &V
|
||||
value: &V,
|
||||
) -> Result<(), Self::Error>
|
||||
where K: Serialize, V: Serialize,
|
||||
{
|
||||
@ -217,7 +217,7 @@ where B: TokenizerBuilder
|
||||
let props = self.schema.props(attr);
|
||||
if props.is_stored() {
|
||||
let value = bincode::serialize(value).unwrap();
|
||||
self.update.insert_attribute_value(attr, value);
|
||||
self.update.insert_attribute_value(attr, &value)?;
|
||||
}
|
||||
if props.is_indexed() {
|
||||
let serializer = IndexerSerializer {
|
||||
@ -239,15 +239,15 @@ where B: TokenizerBuilder
|
||||
}
|
||||
}
|
||||
|
||||
pub struct StructSerializer<'a, B> {
|
||||
pub struct StructSerializer<'a, 'b, B> {
|
||||
pub schema: &'a Schema,
|
||||
pub document_id: DocumentId,
|
||||
pub update: &'a mut DocumentUpdate,
|
||||
pub update: &'a mut DocumentUpdate<'b>,
|
||||
pub tokenizer_builder: &'a B,
|
||||
pub stop_words: &'a HashSet<String>,
|
||||
}
|
||||
|
||||
impl<'a, B> ser::SerializeStruct for StructSerializer<'a, B>
|
||||
impl<'a, 'b, B> ser::SerializeStruct for StructSerializer<'a, 'b, B>
|
||||
where B: TokenizerBuilder
|
||||
{
|
||||
type Ok = ();
|
||||
@ -264,7 +264,7 @@ where B: TokenizerBuilder
|
||||
let props = self.schema.props(attr);
|
||||
if props.is_stored() {
|
||||
let value = bincode::serialize(value).unwrap();
|
||||
self.update.insert_attribute_value(attr, value);
|
||||
self.update.insert_attribute_value(attr, &value)?;
|
||||
}
|
||||
if props.is_indexed() {
|
||||
let serializer = IndexerSerializer {
|
||||
|
||||
209
src/database/update.rs
Normal file
209
src/database/update.rs
Normal file
@ -0,0 +1,209 @@
|
||||
use std::collections::{HashSet, BTreeMap};
|
||||
use std::error::Error;
|
||||
use std::sync::Arc;
|
||||
|
||||
use rocksdb::rocksdb::{DB, Writable, Snapshot, WriteBatch};
|
||||
use hashbrown::hash_map::HashMap;
|
||||
use serde::Serialize;
|
||||
use fst::map::Map;
|
||||
use sdset::Set;
|
||||
|
||||
use crate::database::{DATA_INDEX, Database, DatabaseView};
|
||||
use crate::database::index::{Positive, PositiveBuilder, Negative};
|
||||
use crate::database::document_key::{DocumentKey, DocumentKeyAttr};
|
||||
use crate::database::serde::serializer::Serializer;
|
||||
use crate::database::serde::SerializerError;
|
||||
use crate::database::schema::SchemaAttr;
|
||||
use crate::tokenizer::TokenizerBuilder;
|
||||
use crate::data::{DocIds, DocIndexes};
|
||||
use crate::database::schema::Schema;
|
||||
use crate::{DocumentId, DocIndex};
|
||||
use crate::database::index::Index;
|
||||
|
||||
pub type Token = Vec<u8>; // TODO could be replaced by a SmallVec
|
||||
|
||||
pub struct Update<'a> {
|
||||
database: &'a Database,
|
||||
schema: Schema,
|
||||
raw_builder: RawUpdateBuilder,
|
||||
}
|
||||
|
||||
impl<'a> Update<'a> {
|
||||
pub(crate) fn new(database: &'a Database, schema: Schema) -> Update<'a> {
|
||||
Update { database, schema, raw_builder: RawUpdateBuilder::new() }
|
||||
}
|
||||
|
||||
pub fn update_document<T, B>(
|
||||
&mut self,
|
||||
document: T,
|
||||
tokenizer_builder: &B,
|
||||
stop_words: &HashSet<String>,
|
||||
) -> Result<DocumentId, SerializerError>
|
||||
where T: Serialize,
|
||||
B: TokenizerBuilder,
|
||||
{
|
||||
let document_id = self.schema.document_id(&document)?;
|
||||
|
||||
let serializer = Serializer {
|
||||
schema: &self.schema,
|
||||
document_id: document_id,
|
||||
tokenizer_builder: tokenizer_builder,
|
||||
update: &mut self.raw_builder.document_update(document_id)?,
|
||||
stop_words: stop_words,
|
||||
};
|
||||
|
||||
document.serialize(serializer)?;
|
||||
|
||||
Ok(document_id)
|
||||
}
|
||||
|
||||
pub fn remove_document<T>(&mut self, document: T) -> Result<DocumentId, SerializerError>
|
||||
where T: Serialize,
|
||||
{
|
||||
let document_id = self.schema.document_id(&document)?;
|
||||
self.raw_builder.document_update(document_id)?.remove()?;
|
||||
Ok(document_id)
|
||||
}
|
||||
|
||||
pub fn commit(self) -> Result<Arc<DatabaseView<Arc<DB>>>, Box<Error>> {
|
||||
let batch = self.raw_builder.build()?;
|
||||
self.database.db.write(batch)?;
|
||||
|
||||
let snapshot = Snapshot::new(self.database.db.clone());
|
||||
let view = Arc::new(DatabaseView::new(snapshot)?);
|
||||
self.database.view.set(view.clone());
|
||||
|
||||
Ok(view)
|
||||
}
|
||||
|
||||
pub fn abort(self) { }
|
||||
}
|
||||
|
||||
#[derive(Copy, Clone, PartialEq, Eq)]
|
||||
enum UpdateType {
|
||||
Updated,
|
||||
Deleted,
|
||||
}
|
||||
|
||||
use UpdateType::{Updated, Deleted};
|
||||
|
||||
pub struct RawUpdateBuilder {
|
||||
documents_update: HashMap<DocumentId, UpdateType>,
|
||||
indexed_words: BTreeMap<Token, Vec<DocIndex>>,
|
||||
batch: WriteBatch,
|
||||
}
|
||||
|
||||
impl RawUpdateBuilder {
|
||||
pub fn new() -> RawUpdateBuilder {
|
||||
RawUpdateBuilder {
|
||||
documents_update: HashMap::new(),
|
||||
indexed_words: BTreeMap::new(),
|
||||
batch: WriteBatch::new(),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn document_update(&mut self, document_id: DocumentId) -> Result<DocumentUpdate, SerializerError> {
|
||||
use serde::ser::Error;
|
||||
|
||||
match self.documents_update.get(&document_id) {
|
||||
Some(Deleted) | None => Ok(DocumentUpdate { document_id, inner: self }),
|
||||
Some(Updated) => Err(SerializerError::custom(
|
||||
"This document has already been removed and cannot be updated in the same update"
|
||||
)),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn build(self) -> Result<WriteBatch, Box<Error>> {
|
||||
let negative = {
|
||||
let mut removed_document_ids = Vec::new();
|
||||
for (id, update_type) in self.documents_update {
|
||||
if update_type == Deleted {
|
||||
removed_document_ids.push(id);
|
||||
}
|
||||
}
|
||||
|
||||
removed_document_ids.sort_unstable();
|
||||
let removed_document_ids = Set::new_unchecked(&removed_document_ids);
|
||||
let doc_ids = DocIds::new(removed_document_ids);
|
||||
|
||||
Negative::new(doc_ids)
|
||||
};
|
||||
|
||||
let positive = {
|
||||
let mut positive_builder = PositiveBuilder::memory();
|
||||
|
||||
for (key, mut indexes) in self.indexed_words {
|
||||
indexes.sort_unstable();
|
||||
let indexes = Set::new_unchecked(&indexes);
|
||||
positive_builder.insert(key, indexes)?;
|
||||
}
|
||||
|
||||
let (map, indexes) = positive_builder.into_inner()?;
|
||||
let map = Map::from_bytes(map)?;
|
||||
let indexes = DocIndexes::from_bytes(indexes)?;
|
||||
|
||||
Positive::new(map, indexes)
|
||||
};
|
||||
|
||||
let index = Index { negative, positive };
|
||||
|
||||
// write the data-index
|
||||
let mut bytes = Vec::new();
|
||||
index.write_to_bytes(&mut bytes);
|
||||
self.batch.merge(DATA_INDEX, &bytes)?;
|
||||
|
||||
Ok(self.batch)
|
||||
}
|
||||
}
|
||||
|
||||
pub struct DocumentUpdate<'a> {
|
||||
document_id: DocumentId,
|
||||
inner: &'a mut RawUpdateBuilder,
|
||||
}
|
||||
|
||||
impl<'a> DocumentUpdate<'a> {
|
||||
pub fn remove(&mut self) -> Result<(), SerializerError> {
|
||||
use serde::ser::Error;
|
||||
|
||||
if let Updated = self.inner.documents_update.entry(self.document_id).or_insert(Deleted) {
|
||||
return Err(SerializerError::custom(
|
||||
"This document has already been updated and cannot be removed in the same update"
|
||||
));
|
||||
}
|
||||
|
||||
let start = DocumentKey::new(self.document_id).with_attribute_min();
|
||||
let end = DocumentKey::new(self.document_id).with_attribute_max(); // FIXME max + 1
|
||||
self.inner.batch.delete_range(start.as_ref(), end.as_ref())?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn insert_attribute_value(&mut self, attr: SchemaAttr, value: &[u8]) -> Result<(), SerializerError> {
|
||||
use serde::ser::Error;
|
||||
|
||||
if let Deleted = self.inner.documents_update.entry(self.document_id).or_insert(Updated) {
|
||||
return Err(SerializerError::custom(
|
||||
"This document has already been deleted and cannot be updated in the same update"
|
||||
));
|
||||
}
|
||||
|
||||
let key = DocumentKeyAttr::new(self.document_id, attr);
|
||||
self.inner.batch.put(key.as_ref(), &value)?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn insert_doc_index(&mut self, token: Token, doc_index: DocIndex) -> Result<(), SerializerError> {
|
||||
use serde::ser::Error;
|
||||
|
||||
if let Deleted = self.inner.documents_update.entry(self.document_id).or_insert(Updated) {
|
||||
return Err(SerializerError::custom(
|
||||
"This document has already been deleted and cannot be updated in the same update"
|
||||
));
|
||||
}
|
||||
|
||||
self.inner.indexed_words.entry(token).or_insert_with(Vec::new).push(doc_index);
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
@ -1,64 +0,0 @@
|
||||
use std::collections::HashSet;
|
||||
use std::path::PathBuf;
|
||||
use std::error::Error;
|
||||
|
||||
use serde::Serialize;
|
||||
|
||||
use crate::database::serde::serializer::Serializer;
|
||||
use crate::database::serde::SerializerError;
|
||||
use crate::tokenizer::TokenizerBuilder;
|
||||
use crate::database::Schema;
|
||||
|
||||
use crate::DocumentId;
|
||||
use super::{Update, RawUpdateBuilder};
|
||||
|
||||
pub struct UpdateBuilder {
|
||||
schema: Schema,
|
||||
raw_builder: RawUpdateBuilder,
|
||||
}
|
||||
|
||||
impl UpdateBuilder {
|
||||
pub fn new(path: PathBuf, schema: Schema) -> UpdateBuilder {
|
||||
UpdateBuilder {
|
||||
schema: schema,
|
||||
raw_builder: RawUpdateBuilder::new(path),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn update_document<T, B>(
|
||||
&mut self,
|
||||
document: T,
|
||||
tokenizer_builder: &B,
|
||||
stop_words: &HashSet<String>,
|
||||
) -> Result<DocumentId, SerializerError>
|
||||
where T: Serialize,
|
||||
B: TokenizerBuilder,
|
||||
{
|
||||
let document_id = self.schema.document_id(&document)?;
|
||||
let update = self.raw_builder.document_update(document_id);
|
||||
|
||||
let serializer = Serializer {
|
||||
schema: &self.schema,
|
||||
document_id: document_id,
|
||||
tokenizer_builder: tokenizer_builder,
|
||||
update: update,
|
||||
stop_words: stop_words,
|
||||
};
|
||||
|
||||
document.serialize(serializer)?;
|
||||
|
||||
Ok(document_id)
|
||||
}
|
||||
|
||||
pub fn remove_document<T>(&mut self, document: T) -> Result<DocumentId, SerializerError>
|
||||
where T: Serialize,
|
||||
{
|
||||
let document_id = self.schema.document_id(&document)?;
|
||||
self.raw_builder.document_update(document_id).remove();
|
||||
Ok(document_id)
|
||||
}
|
||||
|
||||
pub fn build(self) -> Result<Update, Box<Error>> {
|
||||
self.raw_builder.build()
|
||||
}
|
||||
}
|
||||
@ -1,17 +0,0 @@
|
||||
use std::path::{Path, PathBuf};
|
||||
|
||||
mod builder;
|
||||
mod raw_builder;
|
||||
|
||||
pub use self::builder::UpdateBuilder;
|
||||
pub use self::raw_builder::{RawUpdateBuilder, DocumentUpdate};
|
||||
|
||||
pub struct Update {
|
||||
sst_file: PathBuf,
|
||||
}
|
||||
|
||||
impl Update {
|
||||
pub fn path(&self) -> &Path {
|
||||
&self.sst_file
|
||||
}
|
||||
}
|
||||
@ -1,170 +0,0 @@
|
||||
use std::collections::btree_map::{BTreeMap, Entry};
|
||||
use std::path::PathBuf;
|
||||
use std::error::Error;
|
||||
|
||||
use rocksdb::rocksdb_options;
|
||||
use hashbrown::HashMap;
|
||||
use fst::map::Map;
|
||||
use sdset::Set;
|
||||
use log::warn;
|
||||
|
||||
use crate::database::index::{Index, Positive, PositiveBuilder, Negative};
|
||||
use crate::database::{DATA_INDEX, DocumentKeyAttr};
|
||||
use crate::database::schema::SchemaAttr;
|
||||
use crate::data::{DocIds, DocIndexes};
|
||||
use crate::{DocumentId, DocIndex};
|
||||
use super::Update;
|
||||
|
||||
type Token = Vec<u8>; // TODO could be replaced by a SmallVec
|
||||
type Value = Vec<u8>;
|
||||
|
||||
pub struct RawUpdateBuilder {
|
||||
sst_file: PathBuf,
|
||||
document_updates: BTreeMap<DocumentId, DocumentUpdate>,
|
||||
}
|
||||
|
||||
pub struct DocumentUpdate {
|
||||
cleared: bool,
|
||||
words_indexes: HashMap<Token, Vec<DocIndex>>,
|
||||
attributes: BTreeMap<SchemaAttr, Value>,
|
||||
}
|
||||
|
||||
impl DocumentUpdate {
|
||||
pub fn new() -> DocumentUpdate {
|
||||
DocumentUpdate {
|
||||
cleared: false,
|
||||
words_indexes: HashMap::new(),
|
||||
attributes: BTreeMap::new(),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn remove(&mut self) {
|
||||
self.cleared = true;
|
||||
self.clear();
|
||||
}
|
||||
|
||||
pub fn clear(&mut self) {
|
||||
self.words_indexes.clear();
|
||||
self.attributes.clear();
|
||||
}
|
||||
|
||||
pub fn insert_attribute_value(&mut self, attr: SchemaAttr, value: Vec<u8>) {
|
||||
self.attributes.insert(attr, value);
|
||||
}
|
||||
|
||||
pub fn insert_doc_index(&mut self, token: Vec<u8>, doc_index: DocIndex) {
|
||||
self.words_indexes.entry(token).or_insert_with(Vec::new).push(doc_index)
|
||||
}
|
||||
}
|
||||
|
||||
impl RawUpdateBuilder {
|
||||
pub fn new(path: PathBuf) -> RawUpdateBuilder {
|
||||
RawUpdateBuilder {
|
||||
sst_file: path,
|
||||
document_updates: BTreeMap::new(),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn document_update(&mut self, document_id: DocumentId) -> &mut DocumentUpdate {
|
||||
match self.document_updates.entry(document_id) {
|
||||
Entry::Occupied(mut occupied) => {
|
||||
warn!("Already updated document {:?}, clearing it", document_id);
|
||||
occupied.get_mut().clear();
|
||||
occupied.into_mut()
|
||||
},
|
||||
Entry::Vacant(vacant) => vacant.insert(DocumentUpdate::new()),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn build(mut self) -> Result<Update, Box<Error>> {
|
||||
let mut removed_document_ids = Vec::new();
|
||||
let mut words_indexes = BTreeMap::new();
|
||||
|
||||
for (&id, update) in self.document_updates.iter_mut() {
|
||||
if update.cleared { removed_document_ids.push(id) }
|
||||
|
||||
for (token, indexes) in &update.words_indexes {
|
||||
words_indexes.entry(token).or_insert_with(Vec::new).extend_from_slice(indexes)
|
||||
}
|
||||
}
|
||||
|
||||
let negative = {
|
||||
let removed_document_ids = Set::new_unchecked(&removed_document_ids);
|
||||
let doc_ids = DocIds::new(removed_document_ids);
|
||||
Negative::new(doc_ids)
|
||||
};
|
||||
|
||||
let positive = {
|
||||
let mut positive_builder = PositiveBuilder::memory();
|
||||
|
||||
for (key, mut indexes) in words_indexes {
|
||||
indexes.sort_unstable();
|
||||
let indexes = Set::new_unchecked(&indexes);
|
||||
positive_builder.insert(key, indexes)?;
|
||||
}
|
||||
|
||||
let (map, indexes) = positive_builder.into_inner()?;
|
||||
let map = Map::from_bytes(map)?;
|
||||
let indexes = DocIndexes::from_bytes(indexes)?;
|
||||
Positive::new(map, indexes)
|
||||
};
|
||||
|
||||
let index = Index { negative, positive };
|
||||
|
||||
let env_options = rocksdb_options::EnvOptions::new();
|
||||
let column_family_options = rocksdb_options::ColumnFamilyOptions::new();
|
||||
let mut file_writer = rocksdb::SstFileWriter::new(env_options, column_family_options);
|
||||
file_writer.open(&self.sst_file.to_string_lossy())?;
|
||||
|
||||
// write the data-index
|
||||
let mut bytes = Vec::new();
|
||||
index.write_to_bytes(&mut bytes);
|
||||
file_writer.merge(DATA_INDEX, &bytes)?;
|
||||
|
||||
// write all the documents attributes updates
|
||||
for (id, update) in self.document_updates {
|
||||
|
||||
let mut last_attr: Option<SchemaAttr> = None;
|
||||
for (attr, value) in update.attributes {
|
||||
|
||||
if update.cleared {
|
||||
// if there is no last attribute, remove from the first attribute
|
||||
let start_attr = match last_attr {
|
||||
Some(attr) => attr.next(),
|
||||
None => Some(SchemaAttr::min())
|
||||
};
|
||||
let start = start_attr.map(|a| DocumentKeyAttr::new(id, a));
|
||||
let end = attr.prev().map(|a| DocumentKeyAttr::new(id, a));
|
||||
|
||||
// delete_range between (last_attr + 1) and (attr - 1)
|
||||
if let (Some(start), Some(end)) = (start, end) {
|
||||
file_writer.delete_range(start.as_ref(), end.as_ref())?;
|
||||
}
|
||||
}
|
||||
|
||||
let key = DocumentKeyAttr::new(id, attr);
|
||||
file_writer.put(key.as_ref(), &value)?;
|
||||
last_attr = Some(attr);
|
||||
}
|
||||
|
||||
if update.cleared {
|
||||
// if there is no last attribute, remove from the first attribute
|
||||
let start_attr = match last_attr {
|
||||
Some(attr) => attr.next(),
|
||||
None => Some(SchemaAttr::min())
|
||||
};
|
||||
let start = start_attr.map(|a| DocumentKeyAttr::new(id, a));
|
||||
let end = DocumentKeyAttr::with_attribute_max(id);
|
||||
|
||||
// delete_range between (last_attr + 1) and attr_max
|
||||
if let Some(start) = start {
|
||||
file_writer.delete_range(start.as_ref(), end.as_ref())?;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
file_writer.finish()?;
|
||||
|
||||
Ok(Update { sst_file: self.sst_file })
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user