148 lines
4.2 KiB
Go
148 lines
4.2 KiB
Go
// Copyright 2019 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 layer
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import (
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"database/sql"
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"sort"
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"github.com/coreos/clair/database/pgsql/namespace"
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"github.com/coreos/clair/database"
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"github.com/coreos/clair/database/pgsql/detector"
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"github.com/coreos/clair/database/pgsql/feature"
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"github.com/coreos/clair/database/pgsql/util"
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)
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const findLayerFeatures = `
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SELECT
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f.name, f.version, f.version_format, ft.name, lf.detector_id, ns.name, ns.version_format
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FROM
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layer_feature AS lf
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LEFT JOIN feature f on f.id = lf.feature_id
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LEFT JOIN feature_type ft on ft.id = f.type
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LEFT JOIN namespace ns ON ns.id = lf.namespace_id
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WHERE lf.layer_id = $1`
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func queryPersistLayerFeature(count int) string {
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return util.QueryPersist(count,
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"layer_feature",
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"layer_feature_layer_id_feature_id_namespace_id_key",
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"layer_id",
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"feature_id",
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"detector_id",
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"namespace_id")
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}
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// dbLayerFeature represents the layer_feature table
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type dbLayerFeature struct {
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layerID int64
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featureID int64
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detectorID int64
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namespaceID sql.NullInt64
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}
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func FindLayerFeatures(tx *sql.Tx, layerID int64, detectors detector.DetectorMap) ([]database.LayerFeature, error) {
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rows, err := tx.Query(findLayerFeatures, layerID)
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if err != nil {
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return nil, util.HandleError("findLayerFeatures", err)
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}
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defer rows.Close()
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features := []database.LayerFeature{}
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for rows.Next() {
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var (
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detectorID int64
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feature database.LayerFeature
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)
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var namespaceName, namespaceVersion sql.NullString
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if err := rows.Scan(&feature.Name, &feature.Version, &feature.VersionFormat, &feature.Type, &detectorID, &namespaceName, &namespaceVersion); err != nil {
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return nil, util.HandleError("findLayerFeatures", err)
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}
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feature.PotentialNamespace.Name = namespaceName.String
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feature.PotentialNamespace.VersionFormat = namespaceVersion.String
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feature.By = detectors.ByID[detectorID]
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features = append(features, feature)
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}
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return features, nil
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}
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func PersistAllLayerFeatures(tx *sql.Tx, layerID int64, features []database.LayerFeature) error {
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detectorMap, err := detector.FindAllDetectors(tx)
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if err != nil {
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return err
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}
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var namespaces []database.Namespace
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for _, feature := range features {
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namespaces = append(namespaces, feature.PotentialNamespace)
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}
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nameSpaceIDs, _ := namespace.FindNamespaceIDs(tx, namespaces)
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featureNamespaceMap := map[database.Namespace]sql.NullInt64{}
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rawFeatures := make([]database.Feature, 0, len(features))
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for i, f := range features {
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rawFeatures = append(rawFeatures, f.Feature)
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if f.PotentialNamespace.Valid() {
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featureNamespaceMap[f.PotentialNamespace] = nameSpaceIDs[i]
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}
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}
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featureIDs, err := feature.FindFeatureIDs(tx, rawFeatures)
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if err != nil {
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return err
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}
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var namespaceID sql.NullInt64
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dbFeatures := make([]dbLayerFeature, 0, len(features))
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for i, f := range features {
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detectorID := detectorMap.ByValue[f.By]
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featureID := featureIDs[i].Int64
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if !featureIDs[i].Valid {
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return database.ErrMissingEntities
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}
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namespaceID = featureNamespaceMap[f.PotentialNamespace]
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dbFeatures = append(dbFeatures, dbLayerFeature{layerID, featureID, detectorID, namespaceID})
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}
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if err := PersistLayerFeatures(tx, dbFeatures); err != nil {
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return err
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}
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return nil
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}
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func PersistLayerFeatures(tx *sql.Tx, features []dbLayerFeature) error {
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if len(features) == 0 {
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return nil
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}
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sort.Slice(features, func(i, j int) bool {
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return features[i].featureID < features[j].featureID
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})
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keys := make([]interface{}, 0, len(features)*4)
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for _, f := range features {
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keys = append(keys, f.layerID, f.featureID, f.detectorID, f.namespaceID)
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}
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_, err := tx.Exec(queryPersistLayerFeature(len(features)), keys...)
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if err != nil {
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return util.HandleError("queryPersistLayerFeature", err)
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}
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return nil
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}
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