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coin_storage_helper.go
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/
coin_storage_helper.go
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// Copyright 2020 Coinbase, Inc.
//
// 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 processor
import (
"context"
"github.com/coinbase/rosetta-sdk-go/storage/database"
"github.com/coinbase/rosetta-sdk-go/storage/modules"
"github.com/coinbase/rosetta-sdk-go/types"
)
var _ modules.CoinStorageHelper = (*CoinStorageHelper)(nil)
// CoinStorageHelper implements the storage.CoinStorageHelper
// interface.
type CoinStorageHelper struct {
blockStorage *modules.BlockStorage
}
// NewCoinStorageHelper returns a new *CoinStorageHelper.
func NewCoinStorageHelper(blockStorage *modules.BlockStorage) *CoinStorageHelper {
return &CoinStorageHelper{blockStorage: blockStorage}
}
// CurrentBlockIdentifier returns the head *types.BlockIdentifier in
// the context of a storage.DatabaseTransaction.
func (c *CoinStorageHelper) CurrentBlockIdentifier(
ctx context.Context,
transaction database.Transaction,
) (*types.BlockIdentifier, error) {
return c.blockStorage.GetHeadBlockIdentifierTransactional(ctx, transaction)
}