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relationshipServer.go
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relationshipServer.go
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package servers
import (
"errors"
"google.golang.org/grpc/status"
otelCodes "go.opentelemetry.io/otel/codes"
"golang.org/x/net/context"
"github.com/Permify/permify/internal/services"
"github.com/Permify/permify/pkg/logger"
v1 "github.com/Permify/permify/pkg/pb/base/v1"
"github.com/Permify/permify/pkg/tuple"
)
// RelationshipServer - Structure for Relationship Server
type RelationshipServer struct {
v1.UnimplementedRelationshipServer
relationshipService services.IRelationshipService
logger logger.Interface
}
// NewRelationshipServer - Creates new Relationship Server
func NewRelationshipServer(r services.IRelationshipService, l logger.Interface) *RelationshipServer {
return &RelationshipServer{
relationshipService: r,
logger: l,
}
}
// Read - Allows directly querying the stored graph data to display and filter stored relational tuples
func (r *RelationshipServer) Read(ctx context.Context, request *v1.RelationshipReadRequest) (*v1.RelationshipReadResponse, error) {
ctx, span := tracer.Start(ctx, "relationships.read")
defer span.End()
v := request.Validate()
if v != nil {
return nil, v
}
collection, ct, err := r.relationshipService.ReadRelationships(ctx, request.GetTenantId(), request.GetFilter(), request.GetMetadata().GetSnapToken(), request.GetPageSize(), request.GetContinuousToken())
if err != nil {
span.RecordError(err)
span.SetStatus(otelCodes.Error, err.Error())
r.logger.Error(err.Error())
return nil, status.Error(GetStatus(err), err.Error())
}
return &v1.RelationshipReadResponse{
Tuples: collection.GetTuples(),
ContinuousToken: ct.String(),
}, nil
}
// Write - Write relation tuples to writeDB
func (r *RelationshipServer) Write(ctx context.Context, request *v1.RelationshipWriteRequest) (*v1.RelationshipWriteResponse, error) {
ctx, span := tracer.Start(ctx, "relationships.write")
defer span.End()
v := request.Validate()
if v != nil {
return nil, v
}
for _, tup := range request.GetTuples() {
if tuple.IsSubjectUser(tup.GetSubject()) {
if tup.GetSubject().GetRelation() != "" {
return nil, errors.New(v1.ErrorCode_ERROR_CODE_SUBJECT_RELATION_MUST_BE_EMPTY.String())
}
}
}
snap, err := r.relationshipService.WriteRelationships(ctx, request.GetTenantId(), request.GetTuples(), request.GetMetadata().GetSchemaVersion())
if err != nil {
span.RecordError(err)
span.SetStatus(otelCodes.Error, err.Error())
r.logger.Error(err.Error())
return nil, status.Error(GetStatus(err), err.Error())
}
return &v1.RelationshipWriteResponse{
SnapToken: snap.String(),
}, nil
}
// Delete - Delete relation tuples to writeDB
func (r *RelationshipServer) Delete(ctx context.Context, request *v1.RelationshipDeleteRequest) (*v1.RelationshipDeleteResponse, error) {
ctx, span := tracer.Start(ctx, "relationships.delete")
defer span.End()
v := request.Validate()
if v != nil {
return nil, v
}
snap, err := r.relationshipService.DeleteRelationships(ctx, request.GetTenantId(), request.GetFilter())
if err != nil {
span.RecordError(err)
span.SetStatus(otelCodes.Error, err.Error())
r.logger.Error(err.Error())
return nil, status.Error(GetStatus(err), err.Error())
}
return &v1.RelationshipDeleteResponse{
SnapToken: snap.String(),
}, nil
}