dndex/storage/graph.go

73 lines
1.8 KiB
Go

package storage
import (
"context"
"fmt"
"local/dndex/config"
"local/dndex/storage/driver"
"local/dndex/storage/entity"
"local/dndex/storage/operator"
"strings"
"go.mongodb.org/mongo-driver/bson"
)
type Graph struct {
driver driver.Driver
}
func NewGraph() Graph {
var d driver.Driver
switch strings.ToLower(config.New().DriverType) {
case "mongo":
d = driver.NewMongo()
case "boltdb":
d = driver.NewBoltDB()
}
return Graph{
driver: d,
}
}
func (g Graph) Search(ctx context.Context, namespace string, nameContains string) ([]entity.One, error) {
filter := operator.Regex{Key: entity.Name, Value: fmt.Sprintf(".*%s.*", nameContains)}
return g.find(ctx, namespace, filter)
}
func (g Graph) List(ctx context.Context, namespace string, from ...string) ([]entity.One, error) {
filter := operator.NewFilterIn(entity.Name, from)
return g.find(ctx, namespace, filter)
}
func (g Graph) find(ctx context.Context, namespace string, filter interface{}) ([]entity.One, error) {
ch, err := g.driver.Find(ctx, namespace, filter)
if err != nil {
return nil, err
}
return g.gatherOnes(ctx, ch)
}
func (g Graph) gatherOnes(ctx context.Context, ch <-chan bson.Raw) ([]entity.One, error) {
var ones []entity.One
for one := range ch {
var o entity.One
if err := bson.Unmarshal(one, &o); err != nil {
return nil, err
}
ones = append(ones, o)
}
return ones, nil
}
func (g Graph) Insert(ctx context.Context, namespace string, one entity.One) error {
return g.driver.Insert(ctx, namespace, one)
}
func (g Graph) Update(ctx context.Context, namespace string, one entity.One, modify interface{}) error {
return g.driver.Update(ctx, namespace, one, modify)
}
func (g Graph) Delete(ctx context.Context, namespace string, filter interface{}) error {
return g.driver.Delete(ctx, namespace, filter)
}