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pgsql: Move detector to pgsql/detector module

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master
Sida Chen 5 years ago
parent c50a2339b7
commit 0b32b36cf7
3 changed files with 139 additions and 201 deletions
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196
database/pgsql/detector.go
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@ -1,196 +0,0 @@
// Copyright 2018 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 (
"database/sql"
"github.com/deckarep/golang-set"
log "github.com/sirupsen/logrus"
"github.com/coreos/clair/database"
)
const (
soiDetector = `
INSERT INTO detector (name, version, dtype)
SELECT CAST ($1 AS TEXT), CAST ($2 AS TEXT), CAST ($3 AS detector_type )
WHERE NOT EXISTS (SELECT id FROM detector WHERE name = $1 AND version = $2 AND dtype = $3);`
selectAncestryDetectors = `
SELECT d.name, d.version, d.dtype
FROM ancestry_detector, detector AS d
WHERE ancestry_detector.detector_id = d.id AND ancestry_detector.ancestry_id = $1;`
selectLayerDetectors = `
SELECT d.name, d.version, d.dtype
FROM layer_detector, detector AS d
WHERE layer_detector.detector_id = d.id AND layer_detector.layer_id = $1;`
insertAncestryDetectors = `
INSERT INTO ancestry_detector (ancestry_id, detector_id)
SELECT $1, $2
WHERE NOT EXISTS (SELECT id FROM ancestry_detector WHERE ancestry_id = $1 AND detector_id = $2)`
persistLayerDetector = `
INSERT INTO layer_detector (layer_id, detector_id)
SELECT $1, $2
WHERE NOT EXISTS (SELECT id FROM layer_detector WHERE layer_id = $1 AND detector_id = $2)`
findDetectorID = `SELECT id FROM detector WHERE name = $1 AND version = $2 AND dtype = $3`
findAllDetectors = `SELECT id, name, version, dtype FROM detector`
)
type detectorMap struct {
byID map[int64]database.Detector
byValue map[database.Detector]int64
}
func (tx *pgSession) PersistDetectors(detectors []database.Detector) error {
for _, d := range detectors {
if !d.Valid() {
log.WithField("detector", d).Debug("Invalid Detector")
return database.ErrInvalidParameters
}
r, err := tx.Exec(soiDetector, d.Name, d.Version, d.DType)
if err != nil {
return handleError("soiDetector", err)
}
count, err := r.RowsAffected()
if err != nil {
return handleError("soiDetector", err)
}
if count == 0 {
log.Debug("detector already exists: ", d)
}
}
return nil
}
func (tx *pgSession) persistLayerDetector(layerID int64, detectorID int64) error {
if _, err := tx.Exec(persistLayerDetector, layerID, detectorID); err != nil {
return handleError("persistLayerDetector", err)
}
return nil
}
func (tx *pgSession) persistLayerDetectors(layerID int64, detectorIDs []int64) error {
alreadySaved := mapset.NewSet()
for _, id := range detectorIDs {
if alreadySaved.Contains(id) {
continue
}
alreadySaved.Add(id)
if err := tx.persistLayerDetector(layerID, id); err != nil {
return err
}
}
return nil
}
func (tx *pgSession) insertAncestryDetectors(ancestryID int64, detectorIDs []int64) error {
for _, detectorID := range detectorIDs {
if _, err := tx.Exec(insertAncestryDetectors, ancestryID, detectorID); err != nil {
return handleError("insertAncestryDetectors", err)
}
}
return nil
}
func (tx *pgSession) findAncestryDetectors(id int64) ([]database.Detector, error) {
detectors, err := tx.getDetectors(selectAncestryDetectors, id)
return detectors, err
}
func (tx *pgSession) findLayerDetectors(id int64) ([]database.Detector, error) {
detectors, err := tx.getDetectors(selectLayerDetectors, id)
return detectors, err
}
// findDetectorIDs retrieve ids of the detectors from the database, if any is not
// found, return the error.
func (tx *pgSession) findDetectorIDs(detectors []database.Detector) ([]int64, error) {
ids := []int64{}
for _, d := range detectors {
id := sql.NullInt64{}
err := tx.QueryRow(findDetectorID, d.Name, d.Version, d.DType).Scan(&id)
if err != nil {
return nil, handleError("findDetectorID", err)
}
if !id.Valid {
return nil, database.ErrInconsistent
}
ids = append(ids, id.Int64)
}
return ids, nil
}
func (tx *pgSession) getDetectors(query string, id int64) ([]database.Detector, error) {
rows, err := tx.Query(query, id)
if err != nil {
return nil, handleError("getDetectors", err)
}
detectors := []database.Detector{}
for rows.Next() {
d := database.Detector{}
err := rows.Scan(&d.Name, &d.Version, &d.DType)
if err != nil {
return nil, handleError("getDetectors", err)
}
if !d.Valid() {
return nil, database.ErrInvalidDetector
}
detectors = append(detectors, d)
}
return detectors, nil
}
func (tx *pgSession) findAllDetectors() (detectorMap, error) {
rows, err := tx.Query(findAllDetectors)
if err != nil {
return detectorMap{}, handleError("searchAllDetectors", err)
}
detectors := detectorMap{byID: make(map[int64]database.Detector), byValue: make(map[database.Detector]int64)}
for rows.Next() {
var (
id int64
d database.Detector
)
if err := rows.Scan(&id, &d.Name, &d.Version, &d.DType); err != nil {
return detectorMap{}, handleError("searchAllDetectors", err)
}
detectors.byID[id] = d
detectors.byValue[d] = id
}
return detectors, nil
}

132
database/pgsql/detector/detector.go
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@ -0,0 +1,132 @@
// Copyright 2018 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 detector
import (
"database/sql"
log "github.com/sirupsen/logrus"
"github.com/coreos/clair/database"
"github.com/coreos/clair/database/pgsql/util"
)
const (
soiDetector = `
INSERT INTO detector (name, version, dtype)
SELECT CAST ($1 AS TEXT), CAST ($2 AS TEXT), CAST ($3 AS detector_type )
WHERE NOT EXISTS (SELECT id FROM detector WHERE name = $1 AND version = $2 AND dtype = $3);`
findDetectorID = `SELECT id FROM detector WHERE name = $1 AND version = $2 AND dtype = $3`
findAllDetectors = `SELECT id, name, version, dtype FROM detector`
)
type DetectorMap struct {
ByID map[int64]database.Detector
ByValue map[database.Detector]int64
}
func PersistDetectors(tx *sql.Tx, detectors []database.Detector) error {
for _, d := range detectors {
if !d.Valid() {
log.WithField("detector", d).Debug("Invalid Detector")
return database.ErrInvalidParameters
}
r, err := tx.Exec(soiDetector, d.Name, d.Version, d.DType)
if err != nil {
return util.HandleError("soiDetector", err)
}
count, err := r.RowsAffected()
if err != nil {
return util.HandleError("soiDetector", err)
}
if count == 0 {
log.Debug("detector already exists: ", d)
}
}
return nil
}
// findDetectorIDs retrieve ids of the detectors from the database, if any is not
// found, return the error.
func FindDetectorIDs(tx *sql.Tx, detectors []database.Detector) ([]int64, error) {
ids := []int64{}
for _, d := range detectors {
id := sql.NullInt64{}
err := tx.QueryRow(findDetectorID, d.Name, d.Version, d.DType).Scan(&id)
if err != nil {
return nil, util.HandleError("findDetectorID", err)
}
if !id.Valid {
return nil, database.ErrInconsistent
}
ids = append(ids, id.Int64)
}
return ids, nil
}
func GetDetectors(tx *sql.Tx, query string, id int64) ([]database.Detector, error) {
rows, err := tx.Query(query, id)
if err != nil {
return nil, util.HandleError("getDetectors", err)
}
detectors := []database.Detector{}
for rows.Next() {
d := database.Detector{}
err := rows.Scan(&d.Name, &d.Version, &d.DType)
if err != nil {
return nil, util.HandleError("getDetectors", err)
}
if !d.Valid() {
return nil, database.ErrInvalidDetector
}
detectors = append(detectors, d)
}
return detectors, nil
}
func FindAllDetectors(tx *sql.Tx) (DetectorMap, error) {
rows, err := tx.Query(findAllDetectors)
if err != nil {
return DetectorMap{}, util.HandleError("searchAllDetectors", err)
}
detectors := DetectorMap{ByID: make(map[int64]database.Detector), ByValue: make(map[database.Detector]int64)}
for rows.Next() {
var (
id int64
d database.Detector
)
if err := rows.Scan(&id, &d.Name, &d.Version, &d.DType); err != nil {
return DetectorMap{}, util.HandleError("searchAllDetectors", err)
}
detectors.ByID[id] = d
detectors.ByValue[d] = id
}
return detectors, nil
}

12
database/pgsql/detector_test.go → database/pgsql/detector/detector_test.go
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@ -12,18 +12,20 @@
// See the License for the specific language governing permissions and
// limitations under the License.
package pgsql
package detector
import (
"database/sql"
"testing"
"github.com/deckarep/golang-set"
"github.com/stretchr/testify/require"
"github.com/coreos/clair/database"
"github.com/coreos/clair/database/pgsql/testutil"
)
func testGetAllDetectors(tx *pgSession) []database.Detector {
func testGetAllDetectors(tx *sql.Tx) []database.Detector {
query := `SELECT name, version, dtype FROM detector`
rows, err := tx.Query(query)
if err != nil {
@ -90,12 +92,12 @@ var persistDetectorTests = []struct {
}
func TestPersistDetector(t *testing.T) {
datastore, tx := openSessionForTest(t, "PersistDetector", true)
defer closeTest(t, datastore, tx)
tx, cleanup := testutil.CreateTestTxWithFixtures(t, "PersistDetector")
defer cleanup()
for _, test := range persistDetectorTests {
t.Run(test.title, func(t *testing.T) {
err := tx.PersistDetectors(test.in)
err := PersistDetectors(tx, test.in)
if test.err != "" {
require.EqualError(t, err, test.err)
return
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