merge search service w/ data
Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk
parent
b7369074d4
commit
6808671751
|
|
@ -1,113 +0,0 @@
|
|||
use std::sync::Arc;
|
||||
|
||||
use conduit::utils::{set, stream::TryIgnore, IterStream, ReadyExt};
|
||||
use database::Map;
|
||||
use futures::StreamExt;
|
||||
use ruma::RoomId;
|
||||
|
||||
use crate::{rooms, Dep};
|
||||
|
||||
pub(super) struct Data {
|
||||
tokenids: Arc<Map>,
|
||||
services: Services,
|
||||
}
|
||||
|
||||
struct Services {
|
||||
short: Dep<rooms::short::Service>,
|
||||
}
|
||||
|
||||
impl Data {
|
||||
pub(super) fn new(args: &crate::Args<'_>) -> Self {
|
||||
let db = &args.db;
|
||||
Self {
|
||||
tokenids: db["tokenids"].clone(),
|
||||
services: Services {
|
||||
short: args.depend::<rooms::short::Service>("rooms::short"),
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
pub(super) fn index_pdu(&self, shortroomid: u64, pdu_id: &[u8], message_body: &str) {
|
||||
let batch = tokenize(message_body)
|
||||
.map(|word| {
|
||||
let mut key = shortroomid.to_be_bytes().to_vec();
|
||||
key.extend_from_slice(word.as_bytes());
|
||||
key.push(0xFF);
|
||||
key.extend_from_slice(pdu_id); // TODO: currently we save the room id a second time here
|
||||
(key, Vec::<u8>::new())
|
||||
})
|
||||
.collect::<Vec<_>>();
|
||||
|
||||
self.tokenids.insert_batch(batch.iter());
|
||||
}
|
||||
|
||||
pub(super) fn deindex_pdu(&self, shortroomid: u64, pdu_id: &[u8], message_body: &str) {
|
||||
let batch = tokenize(message_body).map(|word| {
|
||||
let mut key = shortroomid.to_be_bytes().to_vec();
|
||||
key.extend_from_slice(word.as_bytes());
|
||||
key.push(0xFF);
|
||||
key.extend_from_slice(pdu_id); // TODO: currently we save the room id a second time here
|
||||
key
|
||||
});
|
||||
|
||||
for token in batch {
|
||||
self.tokenids.remove(&token);
|
||||
}
|
||||
}
|
||||
|
||||
pub(super) async fn search_pdus(
|
||||
&self, room_id: &RoomId, search_string: &str,
|
||||
) -> Option<(Vec<Vec<u8>>, Vec<String>)> {
|
||||
let prefix = self
|
||||
.services
|
||||
.short
|
||||
.get_shortroomid(room_id)
|
||||
.await
|
||||
.ok()?
|
||||
.to_be_bytes()
|
||||
.to_vec();
|
||||
|
||||
let words: Vec<_> = tokenize(search_string).collect();
|
||||
|
||||
let bufs: Vec<_> = words
|
||||
.clone()
|
||||
.into_iter()
|
||||
.stream()
|
||||
.then(move |word| {
|
||||
let mut prefix2 = prefix.clone();
|
||||
prefix2.extend_from_slice(word.as_bytes());
|
||||
prefix2.push(0xFF);
|
||||
let prefix3 = prefix2.clone();
|
||||
|
||||
let mut last_possible_id = prefix2.clone();
|
||||
last_possible_id.extend_from_slice(&u64::MAX.to_be_bytes());
|
||||
|
||||
self.tokenids
|
||||
.rev_raw_keys_from(&last_possible_id) // Newest pdus first
|
||||
.ignore_err()
|
||||
.ready_take_while(move |key| key.starts_with(&prefix2))
|
||||
.map(move |key| key[prefix3.len()..].to_vec())
|
||||
.collect::<Vec<_>>()
|
||||
})
|
||||
.collect()
|
||||
.await;
|
||||
|
||||
Some((
|
||||
set::intersection(bufs.iter().map(|buf| buf.iter()))
|
||||
.cloned()
|
||||
.collect(),
|
||||
words,
|
||||
))
|
||||
}
|
||||
}
|
||||
|
||||
/// Splits a string into tokens used as keys in the search inverted index
|
||||
///
|
||||
/// This may be used to tokenize both message bodies (for indexing) or search
|
||||
/// queries (for querying).
|
||||
fn tokenize(body: &str) -> impl Iterator<Item = String> + Send + '_ {
|
||||
body.split_terminator(|c: char| !c.is_alphanumeric())
|
||||
.filter(|s| !s.is_empty())
|
||||
.filter(|word| word.len() <= 50)
|
||||
.map(str::to_lowercase)
|
||||
}
|
||||
|
|
@ -1,41 +1,124 @@
|
|||
mod data;
|
||||
|
||||
use std::sync::Arc;
|
||||
|
||||
use conduit::Result;
|
||||
use data::Data;
|
||||
use conduit::{
|
||||
implement,
|
||||
utils::{set, stream::TryIgnore, IterStream, ReadyExt},
|
||||
Result,
|
||||
};
|
||||
use database::Map;
|
||||
use futures::StreamExt;
|
||||
use ruma::RoomId;
|
||||
|
||||
use crate::{rooms, Dep};
|
||||
|
||||
pub struct Service {
|
||||
db: Data,
|
||||
services: Services,
|
||||
}
|
||||
|
||||
struct Data {
|
||||
tokenids: Arc<Map>,
|
||||
}
|
||||
|
||||
struct Services {
|
||||
short: Dep<rooms::short::Service>,
|
||||
}
|
||||
|
||||
impl crate::Service for Service {
|
||||
fn build(args: crate::Args<'_>) -> Result<Arc<Self>> {
|
||||
Ok(Arc::new(Self {
|
||||
db: Data::new(&args),
|
||||
db: Data {
|
||||
tokenids: args.db["tokenids"].clone(),
|
||||
},
|
||||
services: Services {
|
||||
short: args.depend::<rooms::short::Service>("rooms::short"),
|
||||
},
|
||||
}))
|
||||
}
|
||||
|
||||
fn name(&self) -> &str { crate::service::make_name(std::module_path!()) }
|
||||
}
|
||||
|
||||
impl Service {
|
||||
#[inline]
|
||||
#[tracing::instrument(skip(self), level = "debug")]
|
||||
#[implement(Service)]
|
||||
pub fn index_pdu(&self, shortroomid: u64, pdu_id: &[u8], message_body: &str) {
|
||||
self.db.index_pdu(shortroomid, pdu_id, message_body);
|
||||
let batch = tokenize(message_body)
|
||||
.map(|word| {
|
||||
let mut key = shortroomid.to_be_bytes().to_vec();
|
||||
key.extend_from_slice(word.as_bytes());
|
||||
key.push(0xFF);
|
||||
key.extend_from_slice(pdu_id); // TODO: currently we save the room id a second time here
|
||||
(key, Vec::<u8>::new())
|
||||
})
|
||||
.collect::<Vec<_>>();
|
||||
|
||||
self.db.tokenids.insert_batch(batch.iter());
|
||||
}
|
||||
|
||||
#[inline]
|
||||
#[tracing::instrument(skip(self), level = "debug")]
|
||||
#[implement(Service)]
|
||||
pub fn deindex_pdu(&self, shortroomid: u64, pdu_id: &[u8], message_body: &str) {
|
||||
self.db.deindex_pdu(shortroomid, pdu_id, message_body);
|
||||
let batch = tokenize(message_body).map(|word| {
|
||||
let mut key = shortroomid.to_be_bytes().to_vec();
|
||||
key.extend_from_slice(word.as_bytes());
|
||||
key.push(0xFF);
|
||||
key.extend_from_slice(pdu_id); // TODO: currently we save the room id a second time here
|
||||
key
|
||||
});
|
||||
|
||||
for token in batch {
|
||||
self.db.tokenids.remove(&token);
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
#[tracing::instrument(skip(self), level = "debug")]
|
||||
#[implement(Service)]
|
||||
pub async fn search_pdus(&self, room_id: &RoomId, search_string: &str) -> Option<(Vec<Vec<u8>>, Vec<String>)> {
|
||||
self.db.search_pdus(room_id, search_string).await
|
||||
let prefix = self
|
||||
.services
|
||||
.short
|
||||
.get_shortroomid(room_id)
|
||||
.await
|
||||
.ok()?
|
||||
.to_be_bytes()
|
||||
.to_vec();
|
||||
|
||||
let words: Vec<_> = tokenize(search_string).collect();
|
||||
|
||||
let bufs: Vec<_> = words
|
||||
.clone()
|
||||
.into_iter()
|
||||
.stream()
|
||||
.then(move |word| {
|
||||
let mut prefix2 = prefix.clone();
|
||||
prefix2.extend_from_slice(word.as_bytes());
|
||||
prefix2.push(0xFF);
|
||||
let prefix3 = prefix2.clone();
|
||||
|
||||
let mut last_possible_id = prefix2.clone();
|
||||
last_possible_id.extend_from_slice(&u64::MAX.to_be_bytes());
|
||||
|
||||
self.db.tokenids
|
||||
.rev_raw_keys_from(&last_possible_id) // Newest pdus first
|
||||
.ignore_err()
|
||||
.ready_take_while(move |key| key.starts_with(&prefix2))
|
||||
.map(move |key| key[prefix3.len()..].to_vec())
|
||||
.collect::<Vec<_>>()
|
||||
})
|
||||
.collect()
|
||||
.await;
|
||||
|
||||
let bufs = bufs.iter().map(|buf| buf.iter());
|
||||
|
||||
let results = set::intersection(bufs).cloned().collect();
|
||||
|
||||
Some((results, words))
|
||||
}
|
||||
|
||||
/// Splits a string into tokens used as keys in the search inverted index
|
||||
///
|
||||
/// This may be used to tokenize both message bodies (for indexing) or search
|
||||
/// queries (for querying).
|
||||
fn tokenize(body: &str) -> impl Iterator<Item = String> + Send + '_ {
|
||||
body.split_terminator(|c: char| !c.is_alphanumeric())
|
||||
.filter(|s| !s.is_empty())
|
||||
.filter(|word| word.len() <= 50)
|
||||
.map(str::to_lowercase)
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue