dendrite/appservice/storage/sqlite3/storage.go
Kegsay ecd7accbad
Rehuffle where things are in the internal package (#1122)
renamed:    internal/eventcontent.go -> internal/eventutil/eventcontent.go
	renamed:    internal/events.go -> internal/eventutil/events.go
	renamed:    internal/types.go -> internal/eventutil/types.go
	renamed:    internal/http/http.go -> internal/httputil/http.go
	renamed:    internal/httpapi.go -> internal/httputil/httpapi.go
	renamed:    internal/httpapi_test.go -> internal/httputil/httpapi_test.go
	renamed:    internal/httpapis/paths.go -> internal/httputil/paths.go
	renamed:    internal/routing.go -> internal/httputil/routing.go
	renamed:    internal/basecomponent/base.go -> internal/setup/base.go
	renamed:    internal/basecomponent/flags.go -> internal/setup/flags.go
	renamed:    internal/partition_offset_table.go -> internal/sqlutil/partition_offset_table.go
	renamed:    internal/postgres.go -> internal/sqlutil/postgres.go
	renamed:    internal/postgres_wasm.go -> internal/sqlutil/postgres_wasm.go
	renamed:    internal/sql.go -> internal/sqlutil/sql.go
2020-06-12 14:55:57 +01:00

117 lines
3.5 KiB
Go

// Copyright 2018 New Vector Ltd
// Copyright 2019-2020 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package sqlite3
import (
"context"
"database/sql"
// Import SQLite database driver
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/gomatrixserverlib"
_ "github.com/mattn/go-sqlite3"
)
// Database stores events intended to be later sent to application services
type Database struct {
events eventsStatements
txnID txnStatements
db *sql.DB
}
// NewDatabase opens a new database
func NewDatabase(dataSourceName string) (*Database, error) {
var result Database
var err error
cs, err := sqlutil.ParseFileURI(dataSourceName)
if err != nil {
return nil, err
}
if result.db, err = sqlutil.Open(sqlutil.SQLiteDriverName(), cs, nil); err != nil {
return nil, err
}
if err = result.prepare(); err != nil {
return nil, err
}
return &result, nil
}
func (d *Database) prepare() error {
if err := d.events.prepare(d.db); err != nil {
return err
}
return d.txnID.prepare(d.db)
}
// StoreEvent takes in a gomatrixserverlib.HeaderedEvent and stores it in the database
// for a transaction worker to pull and later send to an application service.
func (d *Database) StoreEvent(
ctx context.Context,
appServiceID string,
event *gomatrixserverlib.HeaderedEvent,
) error {
return d.events.insertEvent(ctx, appServiceID, event)
}
// GetEventsWithAppServiceID returns a slice of events and their IDs intended to
// be sent to an application service given its ID.
func (d *Database) GetEventsWithAppServiceID(
ctx context.Context,
appServiceID string,
limit int,
) (int, int, []gomatrixserverlib.HeaderedEvent, bool, error) {
return d.events.selectEventsByApplicationServiceID(ctx, appServiceID, limit)
}
// CountEventsWithAppServiceID returns the number of events destined for an
// application service given its ID.
func (d *Database) CountEventsWithAppServiceID(
ctx context.Context,
appServiceID string,
) (int, error) {
return d.events.countEventsByApplicationServiceID(ctx, appServiceID)
}
// UpdateTxnIDForEvents takes in an application service ID and a
// and stores them in the DB, unless the pair already exists, in
// which case it updates them.
func (d *Database) UpdateTxnIDForEvents(
ctx context.Context,
appserviceID string,
maxID, txnID int,
) error {
return d.events.updateTxnIDForEvents(ctx, appserviceID, maxID, txnID)
}
// RemoveEventsBeforeAndIncludingID removes all events from the database that
// are less than or equal to a given maximum ID. IDs here are implemented as a
// serial, thus this should always delete events in chronological order.
func (d *Database) RemoveEventsBeforeAndIncludingID(
ctx context.Context,
appserviceID string,
eventTableID int,
) error {
return d.events.deleteEventsBeforeAndIncludingID(ctx, appserviceID, eventTableID)
}
// GetLatestTxnID returns the latest available transaction id
func (d *Database) GetLatestTxnID(
ctx context.Context,
) (int, error) {
return d.txnID.selectTxnID(ctx)
}