storj/satellite/satellitedb/consoledb.go

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// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package satellitedb
import (
"context"
"sync"
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"github.com/zeebo/errs"
"storj.io/common/lrucache"
"storj.io/storj/satellite/console"
"storj.io/storj/satellite/console/consoleauth"
"storj.io/storj/satellite/satellitedb/dbx"
)
// ensures that ConsoleDB implements console.DB.
var _ console.DB = (*ConsoleDB)(nil)
// ConsoleDB contains access to different satellite databases.
type ConsoleDB struct {
apikeysLRUOptions lrucache.Options
satellite/satellitedb: unexport satellitedb.DB Backstory: I needed a better way to pass around information about the underlying driver and implementation to all the various db-using things in satellitedb (at least until some new "cockroach driver" support makes it to DBX). After hitting a few dead ends, I decided I wanted to have a type that could act like a *dbx.DB but which would also carry information about the implementation, etc. Then I could pass around that type to all the things in satellitedb that previously wanted *dbx.DB. But then I realized that *satellitedb.DB was, essentially, exactly that already. One thing that might have kept *satellitedb.DB from being directly usable was that embedding a *dbx.DB inside it would make a lot of dbx methods publicly available on a *satellitedb.DB instance that previously were nicely encapsulated and hidden. But after a quick look, I realized that _nothing_ outside of satellite/satellitedb even needs to use satellitedb.DB at all. It didn't even need to be exported, except for some trivially-replaceable code in migrate_postgres_test.go. And once I made it unexported, any concerns about exposing new methods on it were entirely moot. So I have here changed the exported *satellitedb.DB type into the unexported *satellitedb.satelliteDB type, and I have changed all the places here that wanted raw dbx.DB handles to use this new type instead. Now they can just take a gander at the implementation member on it and know all they need to know about the underlying database. This will make it possible for some other pending code here to differentiate between postgres and cockroach backends. Change-Id: I27af99f8ae23b50782333da5277b553b34634edc
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db *satelliteDB
tx *dbx.Tx
methods dbx.Methods
apikeysOnce *sync.Once
apikeys *apikeys
}
// Users is getter a for Users repository.
func (db *ConsoleDB) Users() console.Users {
return &users{db.db}
}
// Projects is a getter for Projects repository.
func (db *ConsoleDB) Projects() console.Projects {
return &projects{db: db.methods, sdb: db.db}
}
// ProjectMembers is a getter for ProjectMembers repository.
func (db *ConsoleDB) ProjectMembers() console.ProjectMembers {
return &projectMembers{db.methods, db.db}
}
// APIKeys is a getter for APIKeys repository.
func (db *ConsoleDB) APIKeys() console.APIKeys {
db.apikeysOnce.Do(func() {
options := db.apikeysLRUOptions
options.Name = "satellitedb-apikeys"
db.apikeys = &apikeys{
methods: db.methods,
lru: lrucache.New(options),
db: db.db,
}
})
return db.apikeys
}
// RegistrationTokens is a getter for RegistrationTokens repository.
func (db *ConsoleDB) RegistrationTokens() console.RegistrationTokens {
return &registrationTokens{db.methods}
}
// ResetPasswordTokens is a getter for ResetPasswordTokens repository.
func (db *ConsoleDB) ResetPasswordTokens() console.ResetPasswordTokens {
return &resetPasswordTokens{db.methods}
}
// WebappSessions is a getter for WebappSessions repository.
func (db *ConsoleDB) WebappSessions() consoleauth.WebappSessions {
return &webappSessions{db.methods}
}
// AccountFreezeEvents is a getter for AccountFreezeEvents repository.
func (db *ConsoleDB) AccountFreezeEvents() console.AccountFreezeEvents {
return &accountFreezeEvents{db.methods}
}
// WithTx is a method for executing and retrying transaction.
func (db *ConsoleDB) WithTx(ctx context.Context, fn func(context.Context, console.DBTx) error) error {
if db.db == nil {
return errs.New("DB is not initialized!")
}
return db.db.WithTx(ctx, func(ctx context.Context, tx *dbx.Tx) error {
dbTx := &DBTx{
ConsoleDB: &ConsoleDB{
apikeysLRUOptions: db.apikeysLRUOptions,
// Need to expose dbx.DB for when database methods need access to check database driver type
db: db.db,
tx: tx,
methods: tx,
apikeysOnce: db.apikeysOnce,
apikeys: db.apikeys,
},
}
return fn(ctx, dbTx)
})
}
// DBTx extends Database with transaction scope.
type DBTx struct {
*ConsoleDB
}
// Commit is a method for committing and closing transaction.
func (db *DBTx) Commit() error {
if db.tx == nil {
return errs.New("begin transaction before commit it!")
}
return db.tx.Commit()
}
// Rollback is a method for rollback and closing transaction.
func (db *DBTx) Rollback() error {
if db.tx == nil {
return errs.New("begin transaction before rollback it!")
}
return db.tx.Rollback()
}