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Implement vat_move transformer using factory

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This commit is contained in:
Edvard
2018-10-23 10:43:03 +02:00
parent 15e33db33d
commit af1dfbc489
5 changed files with 29 additions and 109 deletions
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pkg/transformers/vat_move/repository.go
+13 -19
View File
@@ -19,29 +19,19 @@ import (
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
)
type Repository interface {
Create(headerID int64, models []VatMoveModel) error
MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error)
MarkHeaderChecked(headerID int64) error
}
type VatMoveRepository struct {
db *postgres.DB
DB *postgres.DB
}
func NewVatMoveRepository(db *postgres.DB) VatMoveRepository {
return VatMoveRepository{
db: db,
}
}
func (repository VatMoveRepository) Create(headerID int64, models []VatMoveModel) error {
tx, err := repository.db.Begin()
func (repository VatMoveRepository) Create(headerID int64, models []interface{}) error {
tx, err := repository.DB.Begin()
if err != nil {
return err
}
for _, vatMove := range models {
var vatMove VatMoveModel
for _, model := range models {
vatMove = model.(VatMoveModel)
_, err = tx.Exec(
`INSERT INTO maker.vat_move (header_id, src, dst, rad, tx_idx, raw_log)
VALUES ($1, $2, $3, $4::NUMERIC, $5, $6)`,
@@ -71,7 +61,7 @@ func (repository VatMoveRepository) Create(headerID int64, models []VatMoveModel
func (repository VatMoveRepository) MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
var result []core.Header
err := repository.db.Select(
err := repository.DB.Select(
&result,
`SELECT headers.id, headers.block_number FROM headers
LEFT JOIN checked_headers on headers.id = header_id
@@ -81,16 +71,20 @@ func (repository VatMoveRepository) MissingHeaders(startingBlockNumber, endingBl
AND headers.eth_node_fingerprint = $3`,
startingBlockNumber,
endingBlockNumber,
repository.db.Node.ID,
repository.DB.Node.ID,
)
return result, err
}
func (repository VatMoveRepository) MarkHeaderChecked(headerID int64) error {
_, err := repository.db.Exec(`INSERT INTO public.checked_headers (header_id, vat_move_checked)
_, err := repository.DB.Exec(`INSERT INTO public.checked_headers (header_id, vat_move_checked)
VALUES ($1, $2)
ON CONFLICT (header_id) DO
UPDATE SET vat_move_checked = $2`, headerID, true)
return err
}
func (repository *VatMoveRepository) SetDB(db *postgres.DB) {
repository.DB = db
}
pkg/transformers/vat_move/transformer.go
-83
View File
@@ -1,83 +0,0 @@
// Copyright 2018 Vulcanize
//
// 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 vat_move
import (
"log"
"github.com/ethereum/go-ethereum/common"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
)
type VatMoveTransformerInitializer struct {
Config shared.TransformerConfig
}
func (initializer VatMoveTransformerInitializer) NewVatMoveTransformer(db *postgres.DB, blockChain core.BlockChain) shared.Transformer {
converter := VatMoveConverter{}
fetcher := shared.NewFetcher(blockChain)
repository := NewVatMoveRepository(db)
return VatMoveTransformer{
Config: initializer.Config,
Converter: converter,
Fetcher: fetcher,
Repository: repository,
}
}
type VatMoveTransformer struct {
Config shared.TransformerConfig
Converter Converter
Fetcher shared.LogFetcher
Repository Repository
}
func (transformer VatMoveTransformer) Execute() error {
missingHeaders, err := transformer.Repository.MissingHeaders(transformer.Config.StartingBlockNumber, transformer.Config.EndingBlockNumber)
if err != nil {
return err
}
log.Printf("Fetching vat move event logs for %d headers \n", len(missingHeaders))
for _, header := range missingHeaders {
topics := [][]common.Hash{{common.HexToHash(shared.VatMoveSignature)}}
matchingLogs, err := transformer.Fetcher.FetchLogs(VatMoveConfig.ContractAddresses, topics, header.BlockNumber)
if err != nil {
return err
}
if len(matchingLogs) < 1 {
err := transformer.Repository.MarkHeaderChecked(header.Id)
if err != nil {
return err
}
continue
}
models, err := transformer.Converter.ToModels(matchingLogs)
if err != nil {
return err
}
err = transformer.Repository.Create(header.Id, models)
if err != nil {
return err
}
}
return nil
}