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baseResolversContainerFactory.go
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baseResolversContainerFactory.go
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package resolverscontainer
import (
"fmt"
"github.com/ElrondNetwork/elrond-go-core/core"
"github.com/ElrondNetwork/elrond-go-core/core/check"
"github.com/ElrondNetwork/elrond-go-core/data/typeConverters"
"github.com/ElrondNetwork/elrond-go-core/marshal"
logger "github.com/ElrondNetwork/elrond-go-logger"
"github.com/ElrondNetwork/elrond-go/common"
"github.com/ElrondNetwork/elrond-go/dataRetriever"
"github.com/ElrondNetwork/elrond-go/dataRetriever/resolvers"
"github.com/ElrondNetwork/elrond-go/dataRetriever/resolvers/topicResolverSender"
"github.com/ElrondNetwork/elrond-go/process/factory"
"github.com/ElrondNetwork/elrond-go/sharding"
)
// EmptyExcludePeersOnTopic is an empty topic
const EmptyExcludePeersOnTopic = ""
var log = logger.GetOrCreate("dataRetriever/factory/resolverscontainer")
type baseResolversContainerFactory struct {
container dataRetriever.ResolversContainer
shardCoordinator sharding.Coordinator
messenger dataRetriever.TopicMessageHandler
store dataRetriever.StorageService
marshalizer marshal.Marshalizer
dataPools dataRetriever.PoolsHolder
uint64ByteSliceConverter typeConverters.Uint64ByteSliceConverter
intRandomizer dataRetriever.IntRandomizer
dataPacker dataRetriever.DataPacker
triesContainer common.TriesHolder
inputAntifloodHandler dataRetriever.P2PAntifloodHandler
outputAntifloodHandler dataRetriever.P2PAntifloodHandler
throttler dataRetriever.ResolverThrottler
intraShardTopic string
isFullHistoryNode bool
currentNetworkEpochProvider dataRetriever.CurrentNetworkEpochProviderHandler
preferredPeersHolder dataRetriever.PreferredPeersHolderHandler
peersRatingHandler dataRetriever.PeersRatingHandler
numCrossShardPeers int
numIntraShardPeers int
numTotalPeers int
numFullHistoryPeers int
payloadValidator dataRetriever.PeerAuthenticationPayloadValidator
}
func (brcf *baseResolversContainerFactory) checkParams() error {
if check.IfNil(brcf.shardCoordinator) {
return dataRetriever.ErrNilShardCoordinator
}
if check.IfNil(brcf.messenger) {
return dataRetriever.ErrNilMessenger
}
if check.IfNil(brcf.store) {
return dataRetriever.ErrNilStore
}
if check.IfNil(brcf.marshalizer) {
return dataRetriever.ErrNilMarshalizer
}
if check.IfNil(brcf.dataPools) {
return dataRetriever.ErrNilDataPoolHolder
}
if check.IfNil(brcf.uint64ByteSliceConverter) {
return dataRetriever.ErrNilUint64ByteSliceConverter
}
if check.IfNil(brcf.dataPacker) {
return dataRetriever.ErrNilDataPacker
}
if check.IfNil(brcf.triesContainer) {
return dataRetriever.ErrNilTrieDataGetter
}
if check.IfNil(brcf.inputAntifloodHandler) {
return fmt.Errorf("%w for input", dataRetriever.ErrNilAntifloodHandler)
}
if check.IfNil(brcf.outputAntifloodHandler) {
return fmt.Errorf("%w for output", dataRetriever.ErrNilAntifloodHandler)
}
if check.IfNil(brcf.throttler) {
return dataRetriever.ErrNilThrottler
}
if check.IfNil(brcf.currentNetworkEpochProvider) {
return dataRetriever.ErrNilCurrentNetworkEpochProvider
}
if check.IfNil(brcf.preferredPeersHolder) {
return dataRetriever.ErrNilPreferredPeersHolder
}
if check.IfNil(brcf.peersRatingHandler) {
return dataRetriever.ErrNilPeersRatingHandler
}
if brcf.numCrossShardPeers <= 0 {
return fmt.Errorf("%w for numCrossShardPeers", dataRetriever.ErrInvalidValue)
}
if brcf.numTotalPeers <= brcf.numCrossShardPeers {
return fmt.Errorf("%w for numTotalPeers", dataRetriever.ErrInvalidValue)
}
if brcf.numFullHistoryPeers <= 0 {
return fmt.Errorf("%w for numFullHistoryPeers", dataRetriever.ErrInvalidValue)
}
return nil
}
func (brcf *baseResolversContainerFactory) generateTxResolvers(
topic string,
unit dataRetriever.UnitType,
dataPool dataRetriever.ShardedDataCacherNotifier,
) error {
shardC := brcf.shardCoordinator
noOfShards := shardC.NumberOfShards()
keys := make([]string, noOfShards+1)
resolverSlice := make([]dataRetriever.Resolver, noOfShards+1)
for idx := uint32(0); idx < noOfShards; idx++ {
identifierTx := topic + shardC.CommunicationIdentifier(idx)
excludePeersFromTopic := topic + shardC.CommunicationIdentifier(shardC.SelfId())
resolver, err := brcf.createTxResolver(identifierTx, excludePeersFromTopic, unit, dataPool, idx, brcf.numCrossShardPeers, brcf.numIntraShardPeers)
if err != nil {
return err
}
resolverSlice[idx] = resolver
keys[idx] = identifierTx
}
identifierTx := topic + shardC.CommunicationIdentifier(core.MetachainShardId)
excludePeersFromTopic := topic + shardC.CommunicationIdentifier(shardC.SelfId())
resolver, err := brcf.createTxResolver(identifierTx, excludePeersFromTopic, unit, dataPool, core.MetachainShardId, brcf.numCrossShardPeers, brcf.numIntraShardPeers)
if err != nil {
return err
}
resolverSlice[noOfShards] = resolver
keys[noOfShards] = identifierTx
return brcf.container.AddMultiple(keys, resolverSlice)
}
func (brcf *baseResolversContainerFactory) createTxResolver(
topic string,
excludedTopic string,
unit dataRetriever.UnitType,
dataPool dataRetriever.ShardedDataCacherNotifier,
targetShardID uint32,
numCrossShardPeers int,
numIntraShardPeers int,
) (dataRetriever.Resolver, error) {
txStorer, err := brcf.store.GetStorer(unit)
if err != nil {
return nil, err
}
resolverSender, err := brcf.createOneResolverSenderWithSpecifiedNumRequests(topic, excludedTopic, targetShardID, numCrossShardPeers, numIntraShardPeers)
if err != nil {
return nil, err
}
arg := resolvers.ArgTxResolver{
ArgBaseResolver: resolvers.ArgBaseResolver{
SenderResolver: resolverSender,
Marshaller: brcf.marshalizer,
AntifloodHandler: brcf.inputAntifloodHandler,
Throttler: brcf.throttler,
},
TxPool: dataPool,
TxStorage: txStorer,
DataPacker: brcf.dataPacker,
IsFullHistoryNode: brcf.isFullHistoryNode,
}
resolver, err := resolvers.NewTxResolver(arg)
if err != nil {
return nil, err
}
err = brcf.messenger.RegisterMessageProcessor(resolver.RequestTopic(), common.DefaultResolversIdentifier, resolver)
if err != nil {
return nil, err
}
return resolver, nil
}
func (brcf *baseResolversContainerFactory) generateMiniBlocksResolvers() error {
shardC := brcf.shardCoordinator
noOfShards := shardC.NumberOfShards()
keys := make([]string, noOfShards+2)
resolverSlice := make([]dataRetriever.Resolver, noOfShards+2)
for idx := uint32(0); idx < noOfShards; idx++ {
identifierMiniBlocks := factory.MiniBlocksTopic + shardC.CommunicationIdentifier(idx)
excludePeersFromTopic := factory.MiniBlocksTopic + shardC.CommunicationIdentifier(shardC.SelfId())
resolver, err := brcf.createMiniBlocksResolver(identifierMiniBlocks, excludePeersFromTopic, idx, brcf.numCrossShardPeers, brcf.numIntraShardPeers)
if err != nil {
return err
}
resolverSlice[idx] = resolver
keys[idx] = identifierMiniBlocks
}
identifierMiniBlocks := factory.MiniBlocksTopic + shardC.CommunicationIdentifier(core.MetachainShardId)
excludePeersFromTopic := factory.MiniBlocksTopic + shardC.CommunicationIdentifier(shardC.SelfId())
resolver, err := brcf.createMiniBlocksResolver(identifierMiniBlocks, excludePeersFromTopic, core.MetachainShardId, brcf.numCrossShardPeers, brcf.numIntraShardPeers)
if err != nil {
return err
}
resolverSlice[noOfShards] = resolver
keys[noOfShards] = identifierMiniBlocks
identifierAllShardMiniBlocks := factory.MiniBlocksTopic + shardC.CommunicationIdentifier(core.AllShardId)
allShardMiniblocksResolver, err := brcf.createMiniBlocksResolver(identifierAllShardMiniBlocks, EmptyExcludePeersOnTopic, brcf.shardCoordinator.SelfId(), brcf.numCrossShardPeers, brcf.numIntraShardPeers)
if err != nil {
return err
}
resolverSlice[noOfShards+1] = allShardMiniblocksResolver
keys[noOfShards+1] = identifierAllShardMiniBlocks
return brcf.container.AddMultiple(keys, resolverSlice)
}
func (brcf *baseResolversContainerFactory) createMiniBlocksResolver(
topic string,
excludedTopic string,
targetShardID uint32,
numCrossShardPeers int,
numIntraShardPeers int,
) (dataRetriever.Resolver, error) {
miniBlocksStorer, err := brcf.store.GetStorer(dataRetriever.MiniBlockUnit)
if err != nil {
return nil, err
}
resolverSender, err := brcf.createOneResolverSenderWithSpecifiedNumRequests(topic, excludedTopic, targetShardID, numCrossShardPeers, numIntraShardPeers)
if err != nil {
return nil, err
}
arg := resolvers.ArgMiniblockResolver{
ArgBaseResolver: resolvers.ArgBaseResolver{
SenderResolver: resolverSender,
Marshaller: brcf.marshalizer,
AntifloodHandler: brcf.inputAntifloodHandler,
Throttler: brcf.throttler,
},
MiniBlockPool: brcf.dataPools.MiniBlocks(),
MiniBlockStorage: miniBlocksStorer,
DataPacker: brcf.dataPacker,
IsFullHistoryNode: brcf.isFullHistoryNode,
}
txBlkResolver, err := resolvers.NewMiniblockResolver(arg)
if err != nil {
return nil, err
}
err = brcf.messenger.RegisterMessageProcessor(txBlkResolver.RequestTopic(), common.DefaultResolversIdentifier, txBlkResolver)
if err != nil {
return nil, err
}
return txBlkResolver, nil
}
func (brcf *baseResolversContainerFactory) generatePeerAuthenticationResolver() error {
identifierPeerAuth := common.PeerAuthenticationTopic
shardC := brcf.shardCoordinator
resolverSender, err := brcf.createOneResolverSenderWithSpecifiedNumRequests(identifierPeerAuth, EmptyExcludePeersOnTopic, shardC.SelfId(), brcf.numCrossShardPeers, brcf.numIntraShardPeers)
if err != nil {
return err
}
arg := resolvers.ArgPeerAuthenticationResolver{
ArgBaseResolver: resolvers.ArgBaseResolver{
SenderResolver: resolverSender,
Marshaller: brcf.marshalizer,
AntifloodHandler: brcf.inputAntifloodHandler,
Throttler: brcf.throttler,
},
PeerAuthenticationPool: brcf.dataPools.PeerAuthentications(),
DataPacker: brcf.dataPacker,
PayloadValidator: brcf.payloadValidator,
}
peerAuthResolver, err := resolvers.NewPeerAuthenticationResolver(arg)
if err != nil {
return err
}
err = brcf.messenger.RegisterMessageProcessor(peerAuthResolver.RequestTopic(), common.DefaultResolversIdentifier, peerAuthResolver)
if err != nil {
return err
}
return brcf.container.Add(identifierPeerAuth, peerAuthResolver)
}
func (brcf *baseResolversContainerFactory) createOneResolverSenderWithSpecifiedNumRequests(
topic string,
excludedTopic string,
targetShardId uint32,
numCrossShardPeers int,
numIntraShardPeers int,
) (dataRetriever.TopicResolverSender, error) {
log.Trace("baseResolversContainerFactory.createOneResolverSenderWithSpecifiedNumRequests",
"topic", topic, "intraShardTopic", brcf.intraShardTopic, "excludedTopic", excludedTopic,
"numCrossShardPeers", numCrossShardPeers, "numIntraShardPeers", numIntraShardPeers)
peerListCreator, err := topicResolverSender.NewDiffPeerListCreator(brcf.messenger, topic, brcf.intraShardTopic, excludedTopic)
if err != nil {
return nil, err
}
arg := topicResolverSender.ArgTopicResolverSender{
Messenger: brcf.messenger,
TopicName: topic,
PeerListCreator: peerListCreator,
Marshalizer: brcf.marshalizer,
Randomizer: brcf.intRandomizer,
TargetShardId: targetShardId,
OutputAntiflooder: brcf.outputAntifloodHandler,
NumCrossShardPeers: numCrossShardPeers,
NumIntraShardPeers: numIntraShardPeers,
NumFullHistoryPeers: brcf.numFullHistoryPeers,
CurrentNetworkEpochProvider: brcf.currentNetworkEpochProvider,
PreferredPeersHolder: brcf.preferredPeersHolder,
SelfShardIdProvider: brcf.shardCoordinator,
PeersRatingHandler: brcf.peersRatingHandler,
}
// TODO instantiate topic sender resolver with the shard IDs for which this resolver is supposed to serve the data
// this will improve the serving of transactions as the searching will be done only on 2 sharded data units
resolverSender, err := topicResolverSender.NewTopicResolverSender(arg)
if err != nil {
return nil, err
}
return resolverSender, nil
}
func (brcf *baseResolversContainerFactory) createTrieNodesResolver(
topic string,
trieId string,
numCrossShardPeers int,
numIntraShardPeers int,
targetShardID uint32,
) (dataRetriever.Resolver, error) {
resolverSender, err := brcf.createOneResolverSenderWithSpecifiedNumRequests(
topic,
EmptyExcludePeersOnTopic,
targetShardID,
numCrossShardPeers,
numIntraShardPeers,
)
if err != nil {
return nil, err
}
trie := brcf.triesContainer.Get([]byte(trieId))
argTrie := resolvers.ArgTrieNodeResolver{
ArgBaseResolver: resolvers.ArgBaseResolver{
SenderResolver: resolverSender,
Marshaller: brcf.marshalizer,
AntifloodHandler: brcf.inputAntifloodHandler,
Throttler: brcf.throttler,
},
TrieDataGetter: trie,
}
resolver, err := resolvers.NewTrieNodeResolver(argTrie)
if err != nil {
return nil, err
}
err = brcf.messenger.RegisterMessageProcessor(resolver.RequestTopic(), common.DefaultResolversIdentifier, resolver)
if err != nil {
return nil, err
}
return resolver, nil
}
func (brcf *baseResolversContainerFactory) generateValidatorInfoResolver() error {
identifierValidatorInfo := common.ValidatorInfoTopic
shardC := brcf.shardCoordinator
resolverSender, err := brcf.createOneResolverSenderWithSpecifiedNumRequests(identifierValidatorInfo, EmptyExcludePeersOnTopic, shardC.SelfId(), brcf.numCrossShardPeers, brcf.numIntraShardPeers)
if err != nil {
return err
}
validatorInfoStorage, err := brcf.store.GetStorer(dataRetriever.UnsignedTransactionUnit)
if err != nil {
return err
}
arg := resolvers.ArgValidatorInfoResolver{
SenderResolver: resolverSender,
Marshaller: brcf.marshalizer,
AntifloodHandler: brcf.inputAntifloodHandler,
Throttler: brcf.throttler,
ValidatorInfoPool: brcf.dataPools.ValidatorsInfo(),
ValidatorInfoStorage: validatorInfoStorage,
DataPacker: brcf.dataPacker,
IsFullHistoryNode: brcf.isFullHistoryNode,
}
validatorInfoResolver, err := resolvers.NewValidatorInfoResolver(arg)
if err != nil {
return err
}
err = brcf.messenger.RegisterMessageProcessor(validatorInfoResolver.RequestTopic(), common.DefaultResolversIdentifier, validatorInfoResolver)
if err != nil {
return err
}
return brcf.container.Add(identifierValidatorInfo, validatorInfoResolver)
}