9c49d9dc55
Aggregate queries in their corresponding files instead of having the single file for every queries because the database is more complicated.
101 lines
2.6 KiB
Go
101 lines
2.6 KiB
Go
// 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 pgsql
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import (
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"database/sql"
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"errors"
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"sort"
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"github.com/coreos/clair/database"
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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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var (
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errNamespaceNotFound = errors.New("Requested Namespace is not in database")
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)
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// PersistNamespaces soi namespaces into database.
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func (tx *pgSession) PersistNamespaces(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 handleError("queryPersistNamespace", err)
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}
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return nil
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}
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func (tx *pgSession) findNamespaceIDs(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, 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, 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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