97 lines
3.1 KiB
Go
97 lines
3.1 KiB
Go
// VulcanizeDB
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// Copyright © 2018 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package tusd
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import (
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"fmt"
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"log"
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"github.com/vulcanize/vulcanizedb/examples/generic/event_triggered"
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"github.com/vulcanize/vulcanizedb/libraries/shared"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/datastore"
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
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"github.com/vulcanize/vulcanizedb/pkg/filters"
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"github.com/vulcanize/vulcanizedb/pkg/omni/shared/constants"
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)
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type GenericTransformer struct {
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Converter GenericConverterInterface
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WatchedEventRepository datastore.WatchedEventRepository
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FilterRepository datastore.FilterRepository
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Repository event_triggered.GenericEventDatastore
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Filters []filters.LogFilter
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}
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func NewTransformer(db *postgres.DB, blockchain core.BlockChain, con shared.ContractConfig) (shared.Transformer, error) {
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var transformer shared.Transformer
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cnvtr, err := NewGenericConverter(con)
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if err != nil {
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return nil, err
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}
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wer := repositories.WatchedEventRepository{DB: db}
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fr := repositories.FilterRepository{DB: db}
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lkr := event_triggered.GenericEventRepository{DB: db}
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transformer = GenericTransformer{
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Converter: cnvtr,
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WatchedEventRepository: wer,
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FilterRepository: fr,
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Repository: lkr,
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Filters: con.Filters,
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}
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for _, filter := range con.Filters {
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fr.CreateFilter(filter)
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}
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return transformer, nil
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}
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func (tr GenericTransformer) Execute() error {
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for _, filter := range tr.Filters {
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watchedEvents, err := tr.WatchedEventRepository.GetWatchedEvents(filter.Name)
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if err != nil {
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log.Println(fmt.Sprintf("Error fetching events for %s:", filter.Name), err)
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return err
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}
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for _, we := range watchedEvents {
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if filter.Name == constants.BurnEvent.String() {
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entity, err := tr.Converter.ToBurnEntity(*we)
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model := tr.Converter.ToBurnModel(entity)
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if err != nil {
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log.Printf("Error persisting data for TrueUSD Burns (watchedEvent.LogID %d):\n %s", we.LogID, err)
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}
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tr.Repository.CreateBurn(model, we.LogID)
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}
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if filter.Name == constants.MintEvent.String() {
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entity, err := tr.Converter.ToMintEntity(*we)
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model := tr.Converter.ToMintModel(entity)
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if err != nil {
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log.Printf("Error persisting data for TrueUSD Mints (watchedEvent.LogID %d):\n %s", we.LogID, err)
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}
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tr.Repository.CreateMint(model, we.LogID)
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}
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}
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}
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return nil
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}
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