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114 lines
2.9 KiB
114 lines
2.9 KiB
// Copyright 2017 clair authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package namespace
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import (
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"database/sql"
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"fmt"
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"sort"
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"github.com/coreos/clair/database"
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"github.com/coreos/clair/database/pgsql/util"
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"github.com/coreos/clair/pkg/commonerr"
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)
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const (
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searchNamespaceID = `SELECT id FROM Namespace WHERE name = $1 AND version_format = $2`
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)
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func queryPersistNamespace(count int) string {
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return util.QueryPersist(count,
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"namespace",
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"namespace_name_version_format_key",
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"name",
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"version_format")
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}
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func querySearchNamespace(nsCount int) string {
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return fmt.Sprintf(
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`SELECT id, name, version_format
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FROM namespace WHERE (name, version_format) IN (%s)`,
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util.QueryString(2, nsCount),
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)
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}
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// PersistNamespaces soi namespaces into database.
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func PersistNamespaces(tx *sql.Tx, namespaces []database.Namespace) error {
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if len(namespaces) == 0 {
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return nil
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}
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// Sorting is needed before inserting into database to prevent deadlock.
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sort.Slice(namespaces, func(i, j int) bool {
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return namespaces[i].Name < namespaces[j].Name &&
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namespaces[i].VersionFormat < namespaces[j].VersionFormat
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})
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keys := make([]interface{}, len(namespaces)*2)
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for i, ns := range namespaces {
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if ns.Name == "" || ns.VersionFormat == "" {
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return commonerr.NewBadRequestError("Empty namespace name or version format is not allowed")
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}
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keys[i*2] = ns.Name
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keys[i*2+1] = ns.VersionFormat
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}
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_, err := tx.Exec(queryPersistNamespace(len(namespaces)), keys...)
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if err != nil {
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return util.HandleError("queryPersistNamespace", err)
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}
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return nil
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}
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func FindNamespaceIDs(tx *sql.Tx, namespaces []database.Namespace) ([]sql.NullInt64, error) {
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if len(namespaces) == 0 {
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return nil, nil
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}
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keys := make([]interface{}, len(namespaces)*2)
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nsMap := map[database.Namespace]sql.NullInt64{}
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for i, n := range namespaces {
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keys[i*2] = n.Name
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keys[i*2+1] = n.VersionFormat
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nsMap[n] = sql.NullInt64{}
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}
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rows, err := tx.Query(querySearchNamespace(len(namespaces)), keys...)
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if err != nil {
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return nil, util.HandleError("searchNamespace", err)
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}
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defer rows.Close()
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var (
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id sql.NullInt64
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ns database.Namespace
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)
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for rows.Next() {
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err := rows.Scan(&id, &ns.Name, &ns.VersionFormat)
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if err != nil {
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return nil, util.HandleError("searchNamespace", err)
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}
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nsMap[ns] = id
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}
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ids := make([]sql.NullInt64, len(namespaces))
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for i, ns := range namespaces {
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ids[i] = nsMap[ns]
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}
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return ids, nil
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}
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