code.vegaprotocol.io/vega@v0.79.0/datanode/sqlsubscribers/snapshot_data.go (about)

     1  // Copyright (C) 2023 Gobalsky Labs Limited
     2  //
     3  // This program is free software: you can redistribute it and/or modify
     4  // it under the terms of the GNU Affero General Public License as
     5  // published by the Free Software Foundation, either version 3 of the
     6  // License, or (at your option) any later version.
     7  //
     8  // This program is distributed in the hope that it will be useful,
     9  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    10  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    11  // GNU Affero General Public License for more details.
    12  //
    13  // You should have received a copy of the GNU Affero General Public License
    14  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    15  
    16  package sqlsubscribers
    17  
    18  import (
    19  	"context"
    20  	"fmt"
    21  
    22  	"code.vegaprotocol.io/vega/core/events"
    23  	"code.vegaprotocol.io/vega/datanode/entities"
    24  	eventspb "code.vegaprotocol.io/vega/protos/vega/events/v1"
    25  )
    26  
    27  type CoreSnapshotEvent interface {
    28  	events.Event
    29  	SnapshotTakenEvent() eventspb.CoreSnapshotData
    30  }
    31  
    32  type snapAdder interface {
    33  	AddSnapshot(context.Context, entities.CoreSnapshotData) error
    34  }
    35  
    36  type SnapshotData struct {
    37  	subscriber
    38  	store snapAdder
    39  }
    40  
    41  func NewSnapshotData(store snapAdder) *SnapshotData {
    42  	return &SnapshotData{
    43  		store: store,
    44  	}
    45  }
    46  
    47  func (s *SnapshotData) Types() []events.Type {
    48  	return []events.Type{events.CoreSnapshotEvent}
    49  }
    50  
    51  func (s *SnapshotData) Push(ctx context.Context, evt events.Event) error {
    52  	return s.consume(ctx, evt.(CoreSnapshotEvent))
    53  }
    54  
    55  func (s *SnapshotData) consume(ctx context.Context, event CoreSnapshotEvent) error {
    56  	sProto := event.SnapshotTakenEvent()
    57  	snap := entities.CoreSnapshotDataFromProto(&sProto, entities.TxHash(event.TxHash()), s.vegaTime)
    58  
    59  	if err := s.store.AddSnapshot(ctx, snap); err != nil {
    60  		return fmt.Errorf("error adding core snapshot data: %w", err)
    61  	}
    62  
    63  	return nil
    64  }
    65  
    66  func (s *SnapshotData) Name() string {
    67  	return "SnapshotData"
    68  }