ipld-eth-server/pkg/super_node/constructors.go

169 lines
6.0 KiB
Go

// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package super_node
import (
"fmt"
"github.com/btcsuite/btcd/chaincfg"
"github.com/btcsuite/btcd/rpcclient"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
"github.com/vulcanize/vulcanizedb/pkg/eth/core"
"github.com/vulcanize/vulcanizedb/pkg/postgres"
"github.com/vulcanize/vulcanizedb/pkg/super_node/btc"
"github.com/vulcanize/vulcanizedb/pkg/super_node/eth"
"github.com/vulcanize/vulcanizedb/pkg/super_node/shared"
)
// NewResponseFilterer constructs a ResponseFilterer for the provided chain type
func NewResponseFilterer(chain shared.ChainType) (shared.ResponseFilterer, error) {
switch chain {
case shared.Ethereum:
return eth.NewResponseFilterer(), nil
case shared.Bitcoin:
return btc.NewResponseFilterer(), nil
default:
return nil, fmt.Errorf("invalid chain %s for filterer constructor", chain.String())
}
}
// NewCIDIndexer constructs a CIDIndexer for the provided chain type
func NewCIDIndexer(chain shared.ChainType, db *postgres.DB) (shared.CIDIndexer, error) {
switch chain {
case shared.Ethereum:
return eth.NewCIDIndexer(db), nil
case shared.Bitcoin:
return btc.NewCIDIndexer(db), nil
default:
return nil, fmt.Errorf("invalid chain %s for indexer constructor", chain.String())
}
}
// NewCIDRetriever constructs a CIDRetriever for the provided chain type
func NewCIDRetriever(chain shared.ChainType, db *postgres.DB) (shared.CIDRetriever, error) {
switch chain {
case shared.Ethereum:
return eth.NewCIDRetriever(db), nil
case shared.Bitcoin:
return btc.NewCIDRetriever(db), nil
default:
return nil, fmt.Errorf("invalid chain %s for retriever constructor", chain.String())
}
}
// NewPayloadStreamer constructs a PayloadStreamer for the provided chain type
func NewPayloadStreamer(chain shared.ChainType, clientOrConfig interface{}) (shared.PayloadStreamer, chan shared.RawChainData, error) {
switch chain {
case shared.Ethereum:
ethClient, ok := clientOrConfig.(core.RPCClient)
if !ok {
var expectedClientType core.RPCClient
return nil, nil, fmt.Errorf("ethereum payload streamer constructor expected client type %T got %T", expectedClientType, clientOrConfig)
}
streamChan := make(chan shared.RawChainData, eth.PayloadChanBufferSize)
return eth.NewPayloadStreamer(ethClient), streamChan, nil
case shared.Bitcoin:
btcClientConn, ok := clientOrConfig.(*rpcclient.ConnConfig)
if !ok {
return nil, nil, fmt.Errorf("bitcoin payload streamer constructor expected client config type %T got %T", rpcclient.ConnConfig{}, clientOrConfig)
}
streamChan := make(chan shared.RawChainData, btc.PayloadChanBufferSize)
return btc.NewHTTPPayloadStreamer(btcClientConn), streamChan, nil
default:
return nil, nil, fmt.Errorf("invalid chain %s for streamer constructor", chain.String())
}
}
// NewPaylaodFetcher constructs a PayloadFetcher for the provided chain type
func NewPaylaodFetcher(chain shared.ChainType, client interface{}) (shared.PayloadFetcher, error) {
switch chain {
case shared.Ethereum:
batchClient, ok := client.(eth.BatchClient)
if !ok {
var expectedClient eth.BatchClient
return nil, fmt.Errorf("ethereum payload fetcher constructor expected client type %T got %T", expectedClient, client)
}
return eth.NewPayloadFetcher(batchClient), nil
case shared.Bitcoin:
connConfig, ok := client.(*rpcclient.ConnConfig)
if !ok {
return nil, fmt.Errorf("bitcoin payload fetcher constructor expected client type %T got %T", &rpcclient.Client{}, client)
}
return btc.NewPayloadFetcher(connConfig)
default:
return nil, fmt.Errorf("invalid chain %s for payload fetcher constructor", chain.String())
}
}
// NewPayloadConverter constructs a PayloadConverter for the provided chain type
func NewPayloadConverter(chain shared.ChainType) (shared.PayloadConverter, error) {
switch chain {
case shared.Ethereum:
return eth.NewPayloadConverter(params.MainnetChainConfig), nil
case shared.Bitcoin:
return btc.NewPayloadConverter(&chaincfg.MainNetParams), nil
default:
return nil, fmt.Errorf("invalid chain %s for converter constructor", chain.String())
}
}
// NewIPLDFetcher constructs an IPLDFetcher for the provided chain type
func NewIPLDFetcher(chain shared.ChainType, ipfsPath string) (shared.IPLDFetcher, error) {
switch chain {
case shared.Ethereum:
return eth.NewIPLDFetcher(ipfsPath)
case shared.Bitcoin:
return btc.NewIPLDFetcher(ipfsPath)
default:
return nil, fmt.Errorf("invalid chain %s for IPLD fetcher constructor", chain.String())
}
}
// NewIPLDPublisher constructs an IPLDPublisher for the provided chain type
func NewIPLDPublisher(chain shared.ChainType, ipfsPath string) (shared.IPLDPublisher, error) {
switch chain {
case shared.Ethereum:
return eth.NewIPLDPublisher(ipfsPath)
case shared.Bitcoin:
return btc.NewIPLDPublisher(ipfsPath)
default:
return nil, fmt.Errorf("invalid chain %s for publisher constructor", chain.String())
}
}
// NewPublicAPI constructs a PublicAPI for the provided chain type
func NewPublicAPI(chain shared.ChainType, db *postgres.DB, ipfsPath string) (rpc.API, error) {
switch chain {
case shared.Ethereum:
backend, err := eth.NewEthBackend(db, ipfsPath)
if err != nil {
return rpc.API{}, err
}
return rpc.API{
Namespace: eth.APIName,
Version: eth.APIVersion,
Service: eth.NewPublicEthAPI(backend),
Public: true,
}, nil
default:
return rpc.API{}, fmt.Errorf("invalid chain %s for public api constructor", chain.String())
}
}