/
domain.go
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/
domain.go
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// Copyright (c) 2019 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package postgres
import (
"context"
"database/sql"
"errors"
"github.com/uber/cadence/common/persistence/sql/sqlplugin"
)
const (
createDomainQuery = `INSERT INTO
domains (id, name, is_global, data, data_encoding)
VALUES($1, $2, $3, $4, $5)`
updateDomainQuery = `UPDATE domains
SET name = $1, data = $2, data_encoding = $3
WHERE shard_id=54321 AND id = $4`
getDomainPart = `SELECT id, name, is_global, data, data_encoding FROM domains`
getDomainByIDQuery = getDomainPart + ` WHERE shard_id=$1 AND id = $2`
getDomainByNameQuery = getDomainPart + ` WHERE shard_id=$1 AND name = $2`
listDomainsQuery = getDomainPart + ` WHERE shard_id=$1 ORDER BY id LIMIT $2`
listDomainsRangeQuery = getDomainPart + ` WHERE shard_id=$1 AND id > $2 ORDER BY id LIMIT $3`
deleteDomainByIDQuery = `DELETE FROM domains WHERE shard_id=$1 AND id = $2`
deleteDomainByNameQuery = `DELETE FROM domains WHERE shard_id=$1 AND name = $2`
getDomainMetadataQuery = `SELECT notification_version FROM domain_metadata`
lockDomainMetadataQuery = `SELECT notification_version FROM domain_metadata FOR UPDATE`
updateDomainMetadataQuery = `UPDATE domain_metadata SET notification_version = $1 WHERE notification_version = $2`
)
const (
shardID = 54321
)
var errMissingArgs = errors.New("missing one or more args for API")
// InsertIntoDomain inserts a single row into domains table
func (pdb *db) InsertIntoDomain(ctx context.Context, row *sqlplugin.DomainRow) (sql.Result, error) {
return pdb.conn.ExecContext(ctx, createDomainQuery, row.ID, row.Name, row.IsGlobal, row.Data, row.DataEncoding)
}
// UpdateDomain updates a single row in domains table
func (pdb *db) UpdateDomain(ctx context.Context, row *sqlplugin.DomainRow) (sql.Result, error) {
return pdb.conn.ExecContext(ctx, updateDomainQuery, row.Name, row.Data, row.DataEncoding, row.ID)
}
// SelectFromDomain reads one or more rows from domains table
func (pdb *db) SelectFromDomain(ctx context.Context, filter *sqlplugin.DomainFilter) ([]sqlplugin.DomainRow, error) {
switch {
case filter.ID != nil || filter.Name != nil:
return pdb.selectFromDomain(ctx, filter)
case filter.PageSize != nil && *filter.PageSize > 0:
return pdb.selectAllFromDomain(ctx, filter)
default:
return nil, errMissingArgs
}
}
func (pdb *db) selectFromDomain(ctx context.Context, filter *sqlplugin.DomainFilter) ([]sqlplugin.DomainRow, error) {
var err error
var row sqlplugin.DomainRow
switch {
case filter.ID != nil:
err = pdb.conn.GetContext(ctx, &row, getDomainByIDQuery, shardID, *filter.ID)
case filter.Name != nil:
err = pdb.conn.GetContext(ctx, &row, getDomainByNameQuery, shardID, *filter.Name)
}
if err != nil {
return nil, err
}
return []sqlplugin.DomainRow{row}, err
}
func (pdb *db) selectAllFromDomain(ctx context.Context, filter *sqlplugin.DomainFilter) ([]sqlplugin.DomainRow, error) {
var err error
var rows []sqlplugin.DomainRow
switch {
case filter.GreaterThanID != nil:
err = pdb.conn.SelectContext(ctx, &rows, listDomainsRangeQuery, shardID, *filter.GreaterThanID, *filter.PageSize)
default:
err = pdb.conn.SelectContext(ctx, &rows, listDomainsQuery, shardID, filter.PageSize)
}
return rows, err
}
// DeleteFromDomain deletes a single row in domains table
func (pdb *db) DeleteFromDomain(ctx context.Context, filter *sqlplugin.DomainFilter) (sql.Result, error) {
var err error
var result sql.Result
switch {
case filter.ID != nil:
result, err = pdb.conn.ExecContext(ctx, deleteDomainByIDQuery, shardID, filter.ID)
default:
result, err = pdb.conn.ExecContext(ctx, deleteDomainByNameQuery, shardID, filter.Name)
}
return result, err
}
// LockDomainMetadata acquires a write lock on a single row in domain_metadata table
func (pdb *db) LockDomainMetadata(ctx context.Context) error {
var row sqlplugin.DomainMetadataRow
err := pdb.conn.GetContext(ctx, &row.NotificationVersion, lockDomainMetadataQuery)
return err
}
// SelectFromDomainMetadata reads a single row in domain_metadata table
func (pdb *db) SelectFromDomainMetadata(ctx context.Context) (*sqlplugin.DomainMetadataRow, error) {
var row sqlplugin.DomainMetadataRow
err := pdb.conn.GetContext(ctx, &row.NotificationVersion, getDomainMetadataQuery)
return &row, err
}
// UpdateDomainMetadata updates a single row in domain_metadata table
func (pdb *db) UpdateDomainMetadata(ctx context.Context, row *sqlplugin.DomainMetadataRow) (sql.Result, error) {
return pdb.conn.ExecContext(ctx, updateDomainMetadataQuery, row.NotificationVersion+1, row.NotificationVersion)
}