clair/database/pgsql/namespace.go
2016-02-24 16:34:54 -05:00

76 lines
2.1 KiB
Go

// Copyright 2015 clair authors
//
// 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 pgsql
import (
"time"
"github.com/coreos/clair/database"
cerrors "github.com/coreos/clair/utils/errors"
)
func (pgSQL *pgSQL) insertNamespace(namespace database.Namespace) (int, error) {
if namespace.Name == "" {
return 0, cerrors.NewBadRequestError("could not find/insert invalid Namespace")
}
if pgSQL.cache != nil {
promCacheQueriesTotal.WithLabelValues("namespace").Inc()
if id, found := pgSQL.cache.Get("namespace:" + namespace.Name); found {
promCacheHitsTotal.WithLabelValues("namespace").Inc()
return id.(int), nil
}
}
// We do `defer observeQueryTime` here because we don't want to observe cached namespaces.
defer observeQueryTime("insertNamespace", "all", time.Now())
var id int
err := pgSQL.QueryRow(getQuery("soi_namespace"), namespace.Name).Scan(&id)
if err != nil {
return 0, handleError("soi_namespace", err)
}
if pgSQL.cache != nil {
pgSQL.cache.Add("namespace:"+namespace.Name, id)
}
return id, nil
}
func (pgSQL *pgSQL) ListNamespaces() (namespaces []database.Namespace, err error) {
rows, err := pgSQL.Query(getQuery("l_namespace"))
if err != nil {
return namespaces, handleError("l_namespace", err)
}
defer rows.Close()
for rows.Next() {
var namespace database.Namespace
err = rows.Scan(&namespace.ID, &namespace.Name)
if err != nil {
return namespaces, handleError("l_namespace.Scan()", err)
}
namespaces = append(namespaces, namespace)
}
if err = rows.Err(); err != nil {
return namespaces, handleError("l_namespace.Rows()", err)
}
return namespaces, err
}