You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
2.4 KiB
75 lines
2.4 KiB
package postgres
|
|
|
|
import (
|
|
"database/sql"
|
|
"fmt"
|
|
|
|
"github.com/chrislusf/seaweedfs/weed/filer"
|
|
"github.com/chrislusf/seaweedfs/weed/filer/abstract_sql"
|
|
"github.com/chrislusf/seaweedfs/weed/util"
|
|
_ "github.com/lib/pq"
|
|
)
|
|
|
|
const (
|
|
CONNECTION_URL_PATTERN = "host=%s port=%d user=%s sslmode=%s connect_timeout=30"
|
|
)
|
|
|
|
func init() {
|
|
filer.Stores = append(filer.Stores, &PostgresStore{})
|
|
}
|
|
|
|
type PostgresStore struct {
|
|
abstract_sql.AbstractSqlStore
|
|
}
|
|
|
|
func (store *PostgresStore) GetName() string {
|
|
return "postgres"
|
|
}
|
|
|
|
func (store *PostgresStore) Initialize(configuration util.Configuration, prefix string) (err error) {
|
|
return store.initialize(
|
|
configuration.GetString(prefix+"username"),
|
|
configuration.GetString(prefix+"password"),
|
|
configuration.GetString(prefix+"hostname"),
|
|
configuration.GetInt(prefix+"port"),
|
|
configuration.GetString(prefix+"database"),
|
|
configuration.GetString(prefix+"sslmode"),
|
|
configuration.GetInt(prefix+"connection_max_idle"),
|
|
configuration.GetInt(prefix+"connection_max_open"),
|
|
)
|
|
}
|
|
|
|
func (store *PostgresStore) initialize(user, password, hostname string, port int, database, sslmode string, maxIdle, maxOpen int) (err error) {
|
|
|
|
store.SqlInsert = "INSERT INTO filemeta (dirhash,name,directory,meta) VALUES($1,$2,$3,$4)"
|
|
store.SqlUpdate = "UPDATE filemeta SET meta=$1 WHERE dirhash=$2 AND name=$3 AND directory=$4"
|
|
store.SqlFind = "SELECT meta FROM filemeta WHERE dirhash=$1 AND name=$2 AND directory=$3"
|
|
store.SqlDelete = "DELETE FROM filemeta WHERE dirhash=$1 AND name=$2 AND directory=$3"
|
|
store.SqlDeleteFolderChildren = "DELETE FROM filemeta WHERE dirhash=$1 AND directory=$2"
|
|
store.SqlListExclusive = "SELECT NAME, meta FROM filemeta WHERE dirhash=$1 AND name>$2 AND directory=$3 AND name like $4 ORDER BY NAME ASC LIMIT $5"
|
|
store.SqlListInclusive = "SELECT NAME, meta FROM filemeta WHERE dirhash=$1 AND name>=$2 AND directory=$3 AND name like $4 ORDER BY NAME ASC LIMIT $5"
|
|
|
|
sqlUrl := fmt.Sprintf(CONNECTION_URL_PATTERN, hostname, port, user, sslmode)
|
|
if password != "" {
|
|
sqlUrl += " password=" + password
|
|
}
|
|
if database != "" {
|
|
sqlUrl += " dbname=" + database
|
|
}
|
|
var dbErr error
|
|
store.DB, dbErr = sql.Open("postgres", sqlUrl)
|
|
if dbErr != nil {
|
|
store.DB.Close()
|
|
store.DB = nil
|
|
return fmt.Errorf("can not connect to %s error:%v", sqlUrl, err)
|
|
}
|
|
|
|
store.DB.SetMaxIdleConns(maxIdle)
|
|
store.DB.SetMaxOpenConns(maxOpen)
|
|
|
|
if err = store.DB.Ping(); err != nil {
|
|
return fmt.Errorf("connect to %s error:%v", sqlUrl, err)
|
|
}
|
|
|
|
return nil
|
|
}
|