94 lines
2.3 KiB
Go
94 lines
2.3 KiB
Go
// VulcanizeDB
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// Copyright © 2019 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 ipfs
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import (
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log "github.com/sirupsen/logrus"
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"sync"
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"github.com/ethereum/go-ethereum/statediff"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
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)
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const payloadChanBufferSize = 800 // 1/10th max size
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type Indexer interface {
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Index() error
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}
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type IPFSIndexer struct {
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Syncer Syncer
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Converter Converter
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Publisher Publisher
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Repository Repository
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PayloadChan chan statediff.Payload
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QuitChan chan bool
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}
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func NewIPFSIndexer(ipfsPath string, db *postgres.DB, ethClient core.EthClient, rpcClient core.RpcClient, qc chan bool) (*IPFSIndexer, error) {
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publisher, err := NewIPLDPublisher(ipfsPath)
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if err != nil {
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return nil, err
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}
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return &IPFSIndexer{
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Syncer: NewStateDiffSyncer(rpcClient),
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Repository: NewCIDRepository(db),
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Converter: NewPayloadConverter(ethClient),
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Publisher: publisher,
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PayloadChan: make(chan statediff.Payload, payloadChanBufferSize),
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QuitChan: qc,
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}, nil
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}
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// The main processing loop for the syncAndPublish
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func (i *IPFSIndexer) Index(wg sync.WaitGroup) error {
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sub, err := i.Syncer.Sync(i.PayloadChan)
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if err != nil {
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return err
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}
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go func() {
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wg.Add(1)
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defer wg.Done()
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for {
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select {
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case payload := <-i.PayloadChan:
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ipldPayload, err := i.Converter.Convert(payload)
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if err != nil {
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log.Error(err)
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}
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cidPayload, err := i.Publisher.Publish(ipldPayload)
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if err != nil {
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log.Error(err)
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}
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err = i.Repository.IndexCIDs(cidPayload)
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if err != nil {
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log.Error(err)
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}
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case err = <-sub.Err():
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log.Error(err)
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case <-i.QuitChan:
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log.Info("quiting IPFSIndexer")
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return
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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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