edge/pkg/storage/rpc/client/document_store.go

135 lines
3.2 KiB
Go

package client
import (
"context"
"net/url"
"github.com/keegancsmith/rpc"
"github.com/pkg/errors"
"gitlab.com/wpetit/goweb/logger"
"forge.cadoles.com/arcad/edge/pkg/storage"
"forge.cadoles.com/arcad/edge/pkg/storage/filter"
"forge.cadoles.com/arcad/edge/pkg/storage/rpc/server/document"
)
type DocumentStore struct {
serverURL *url.URL
}
// Delete implements storage.DocumentStore.
func (s *DocumentStore) Delete(ctx context.Context, collection string, id storage.DocumentID) error {
args := document.DeleteDocumentArgs{
Collection: collection,
DocumentID: id,
}
reply := document.DeleteDocumentReply{}
if err := s.call(ctx, "Service.DeleteDocument", args, &reply); err != nil {
return errors.WithStack(err)
}
return nil
}
// Get implements storage.DocumentStore.
func (s *DocumentStore) Get(ctx context.Context, collection string, id storage.DocumentID) (storage.Document, error) {
args := document.GetDocumentArgs{
Collection: collection,
DocumentID: id,
}
reply := document.GetDocumentReply{}
if err := s.call(ctx, "Service.GetDocument", args, &reply); err != nil {
return nil, errors.WithStack(err)
}
return reply.Document, nil
}
// Query implements storage.DocumentStore.
func (s *DocumentStore) Query(ctx context.Context, collection string, filter *filter.Filter, funcs ...storage.QueryOptionFunc) ([]storage.Document, error) {
opts := &storage.QueryOptions{}
for _, fn := range funcs {
fn(opts)
}
args := document.QueryDocumentsArgs{
Collection: collection,
Filter: nil,
Options: opts,
}
if filter != nil {
args.Filter = filter.AsMap()
}
reply := document.QueryDocumentsReply{
Documents: []storage.Document{},
}
if err := s.call(ctx, "Service.QueryDocuments", args, &reply); err != nil {
return nil, errors.WithStack(err)
}
return reply.Documents, nil
}
// Upsert implements storage.DocumentStore.
func (s *DocumentStore) Upsert(ctx context.Context, collection string, doc storage.Document) (storage.Document, error) {
args := document.UpsertDocumentArgs{
Collection: collection,
Document: doc,
}
reply := document.UpsertDocumentReply{}
if err := s.call(ctx, "Service.UpsertDocument", args, &reply); err != nil {
return nil, errors.WithStack(err)
}
return reply.Document, nil
}
func (s *DocumentStore) call(ctx context.Context, serviceMethod string, args any, reply any) error {
err := s.withClient(ctx, func(ctx context.Context, client *rpc.Client) error {
if err := client.Call(ctx, serviceMethod, args, reply); err != nil {
return errors.WithStack(err)
}
return nil
})
if err != nil {
return errors.WithStack(err)
}
return nil
}
func (s *DocumentStore) withClient(ctx context.Context, fn func(ctx context.Context, client *rpc.Client) error) error {
client, err := rpc.DialHTTPPath("tcp", s.serverURL.Host, s.serverURL.Path+"?"+s.serverURL.RawQuery)
if err != nil {
return errors.WithStack(err)
}
defer func() {
if err := client.Close(); err != nil {
logger.Error(ctx, "could not close rpc client", logger.E(errors.WithStack(err)))
}
}()
if err := fn(ctx, client); err != nil {
return errors.WithStack(err)
}
return nil
}
func NewDocumentStore(url *url.URL) *DocumentStore {
return &DocumentStore{url}
}
var _ storage.DocumentStore = &DocumentStore{}