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ingestion.go
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ingestion.go
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package ingest
import (
"encoding/json"
"fmt"
"time"
"math"
sq "github.com/Masterminds/squirrel"
"github.com/guregu/null"
"github.com/stellar/go/services/horizon/internal/db2/core"
"github.com/stellar/go/services/horizon/internal/db2/history"
"github.com/stellar/go/services/horizon/internal/db2/sqx"
"github.com/stellar/go/support/errors"
"github.com/stellar/go/xdr"
)
// ClearAll clears the entire history database
func (ingest *Ingestion) ClearAll() error {
return ingest.Clear(0, math.MaxInt64)
}
// Clear removes a range of data from the history database, exclusive of the end
// id provided.
func (ingest *Ingestion) Clear(start int64, end int64) error {
clear := ingest.DB.DeleteRange
err := clear(start, end, "history_effects", "history_operation_id")
if err != nil {
return err
}
err = clear(start, end, "history_operation_participants", "history_operation_id")
if err != nil {
return err
}
err = clear(start, end, "history_operations", "id")
if err != nil {
return err
}
err = clear(start, end, "history_transaction_participants", "history_transaction_id")
if err != nil {
return err
}
err = clear(start, end, "history_transactions", "id")
if err != nil {
return err
}
err = clear(start, end, "history_ledgers", "id")
if err != nil {
return err
}
err = clear(start, end, "history_trades", "history_operation_id")
if err != nil {
return err
}
err = clear(start, end, "asset_stats", "id")
if err != nil {
return err
}
return nil
}
// Close finishes the current transaction and finishes this ingestion.
func (ingest *Ingestion) Close() error {
return ingest.commit()
}
// Effect adds a new row into the `history_effects` table.
func (ingest *Ingestion) Effect(address Address, opid int64, order int, typ history.EffectType, details interface{}) error {
djson, err := json.Marshal(details)
if err != nil {
return err
}
ingest.builders[EffectsTableName].Values(address, opid, order, typ, djson)
return nil
}
// Flush writes the currently buffered rows to the db, and if successful
// starts a new transaction.
func (ingest *Ingestion) Flush() error {
tables := []TableName{
EffectsTableName,
LedgersTableName,
OperationParticipantsTableName,
OperationsTableName,
TradesTableName,
TransactionParticipantsTableName,
TransactionsTableName,
}
// Update IDs for accounts
err := ingest.UpdateAccountIDs(tables)
if err != nil {
return errors.Wrap(err, "Error while updating account ids")
}
for _, tableName := range tables {
err = ingest.builders[tableName].Exec(ingest.DB)
if err != nil {
return errors.Wrap(err, fmt.Sprintf("Error adding values while inserting to %s", tableName))
}
}
err = ingest.commit()
if err != nil {
return err
}
return ingest.Start()
}
// UpdateAccountIDs updates IDs of the accounts before inserting
// objects into DB.
func (ingest *Ingestion) UpdateAccountIDs(tables []TableName) error {
// address => ID in DB
accounts := map[Address]int64{}
addresses := []string{}
// Collect addresses to fetch
for _, tableName := range tables {
for _, address := range ingest.builders[tableName].GetAddresses() {
if _, exists := accounts[address]; !exists {
addresses = append(addresses, string(address))
}
accounts[address] = 0
}
}
if len(addresses) == 0 {
return nil
}
// Get IDs and update map
q := history.Q{Session: ingest.DB}
dbAccounts := make([]history.Account, 0, len(addresses))
err := q.AccountsByAddresses(&dbAccounts, addresses)
if err != nil {
return err
}
for _, row := range dbAccounts {
accounts[Address(row.Address)] = row.ID
}
// Insert non-existent addresses and update map
addresses = []string{}
for address, id := range accounts {
if id == 0 {
addresses = append(addresses, string(address))
}
}
if len(addresses) > 0 {
// TODO we should probably batch this too
dbAccounts = make([]history.Account, 0, len(addresses))
err = q.CreateAccounts(&dbAccounts, addresses)
if err != nil {
return err
}
for _, row := range dbAccounts {
accounts[Address(row.Address)] = row.ID
}
}
// Update IDs in objects
for _, tableName := range tables {
ingest.builders[tableName].ReplaceAddressesWithIDs(accounts)
}
return nil
}
// Ledger adds a ledger to the current ingestion
func (ingest *Ingestion) Ledger(
id int64,
header *core.LedgerHeader,
txs int,
ops int,
) {
ingest.builders[LedgersTableName].Values(
CurrentVersion,
id,
header.Sequence,
header.LedgerHash,
null.NewString(header.PrevHash, header.Sequence > 1),
header.Data.TotalCoins,
header.Data.FeePool,
header.Data.BaseFee,
header.Data.BaseReserve,
header.Data.MaxTxSetSize,
time.Unix(header.CloseTime, 0).UTC(),
time.Now().UTC(),
time.Now().UTC(),
txs,
ops,
header.Data.LedgerVersion,
header.DataXDR(),
)
}
// Operation ingests the provided operation data into a new row in the
// `history_operations` table
func (ingest *Ingestion) Operation(
id int64,
txid int64,
order int32,
source xdr.AccountId,
typ xdr.OperationType,
details map[string]interface{},
) error {
djson, err := json.Marshal(details)
if err != nil {
return err
}
ingest.builders[OperationsTableName].Values(id, txid, order, source.Address(), typ, djson)
return nil
}
// OperationParticipants ingests the provided accounts `aids` as participants of
// operation with id `op`, creating a new row in the
// `history_operation_participants` table.
func (ingest *Ingestion) OperationParticipants(op int64, aids []xdr.AccountId) {
for _, aid := range aids {
ingest.builders[OperationParticipantsTableName].Values(op, Address(aid.Address()))
}
}
// Rollback aborts this ingestions transaction
func (ingest *Ingestion) Rollback() (err error) {
err = ingest.DB.Rollback()
return
}
// Start makes the ingestion reeady, initializing the insert builders and tx
func (ingest *Ingestion) Start() (err error) {
err = ingest.DB.Begin()
if err != nil {
return
}
ingest.createInsertBuilders()
return
}
// Trade records a trade into the history_trades table
func (ingest *Ingestion) Trade(
opid int64,
order int32,
buyer xdr.AccountId,
trade xdr.ClaimOfferAtom,
ledgerClosedAt int64,
) error {
q := history.Q{Session: ingest.DB}
sellerAccountId, err := q.GetCreateAccountID(trade.SellerId)
if err != nil {
return errors.Wrap(err, "failed to load seller account id")
}
buyerAccountId, err := q.GetCreateAccountID(buyer)
if err != nil {
return errors.Wrap(err, "failed to load buyer account id")
}
soldAssetId, err := q.GetCreateAssetID(trade.AssetSold)
if err != nil {
return errors.Wrap(err, "failed to get sold asset id")
}
boughtAssetId, err := q.GetCreateAssetID(trade.AssetBought)
if err != nil {
return errors.Wrap(err, "failed to get bought asset id")
}
var baseAssetId, counterAssetId int64
var baseAccountId, counterAccountId int64
var baseAmount, counterAmount xdr.Int64
//map seller and buyer to base and counter based on ordering of ids
if soldAssetId < boughtAssetId {
baseAccountId, baseAssetId, baseAmount, counterAccountId, counterAssetId, counterAmount =
sellerAccountId, soldAssetId, trade.AmountSold, buyerAccountId, boughtAssetId, trade.AmountBought
} else {
baseAccountId, baseAssetId, baseAmount, counterAccountId, counterAssetId, counterAmount =
buyerAccountId, boughtAssetId, trade.AmountBought, sellerAccountId, soldAssetId, trade.AmountSold
}
ingest.builders[TradesTableName].Values(
opid,
order,
time.Unix(ledgerClosedAt, 0).UTC(),
trade.OfferId,
baseAccountId,
baseAssetId,
baseAmount,
counterAccountId,
counterAssetId,
counterAmount,
soldAssetId < boughtAssetId,
)
return nil
}
// Transaction ingests the provided transaction data into a new row in the
// `history_transactions` table
func (ingest *Ingestion) Transaction(
id int64,
tx *core.Transaction,
fee *core.TransactionFee,
) {
// Enquote empty signatures
signatures := tx.Base64Signatures()
ingest.builders[TransactionsTableName].Values(
id,
tx.TransactionHash,
tx.LedgerSequence,
tx.Index,
tx.SourceAddress(),
tx.Sequence(),
tx.Fee(),
len(tx.Envelope.Tx.Operations),
tx.EnvelopeXDR(),
tx.ResultXDR(),
tx.ResultMetaXDR(),
fee.ChangesXDR(),
sqx.StringArray(signatures),
ingest.formatTimeBounds(tx.Envelope.Tx.TimeBounds),
tx.MemoType(),
tx.Memo(),
time.Now().UTC(),
time.Now().UTC(),
)
}
// TransactionParticipants ingests the provided account ids as participants of
// transaction with id `tx`, creating a new row in the
// `history_transaction_participants` table.
func (ingest *Ingestion) TransactionParticipants(tx int64, aids []xdr.AccountId) {
for _, aid := range aids {
ingest.builders[TransactionParticipantsTableName].Values(tx, Address(aid.Address()))
}
}
func (ingest *Ingestion) createInsertBuilders() {
ingest.builders = make(map[TableName]*BatchInsertBuilder)
ingest.builders[LedgersTableName] = &BatchInsertBuilder{
TableName: LedgersTableName,
Columns: []string{
"importer_version",
"id",
"sequence",
"ledger_hash",
"previous_ledger_hash",
"total_coins",
"fee_pool",
"base_fee",
"base_reserve",
"max_tx_set_size",
"closed_at",
"created_at",
"updated_at",
"transaction_count",
"operation_count",
"protocol_version",
"ledger_header",
},
}
ingest.builders[TransactionsTableName] = &BatchInsertBuilder{
TableName: TransactionsTableName,
Columns: []string{
"id",
"transaction_hash",
"ledger_sequence",
"application_order",
"account",
"account_sequence",
"fee_paid",
"operation_count",
"tx_envelope",
"tx_result",
"tx_meta",
"tx_fee_meta",
"signatures",
"time_bounds",
"memo_type",
"memo",
"created_at",
"updated_at",
},
}
ingest.builders[TransactionParticipantsTableName] = &BatchInsertBuilder{
TableName: TransactionParticipantsTableName,
Columns: []string{
"history_transaction_id",
"history_account_id",
},
}
ingest.builders[OperationsTableName] = &BatchInsertBuilder{
TableName: OperationsTableName,
Columns: []string{
"id",
"transaction_id",
"application_order",
"source_account",
"type",
"details",
},
}
ingest.builders[OperationParticipantsTableName] = &BatchInsertBuilder{
TableName: OperationParticipantsTableName,
Columns: []string{
"history_operation_id",
"history_account_id",
},
}
ingest.builders[EffectsTableName] = &BatchInsertBuilder{
TableName: EffectsTableName,
Columns: []string{
"history_account_id",
"history_operation_id",
"\"order\"",
"type",
"details",
},
}
ingest.builders[TradesTableName] = &BatchInsertBuilder{
TableName: TradesTableName,
Columns: []string{
"history_operation_id",
"\"order\"",
"ledger_closed_at",
"offer_id",
"base_account_id",
"base_asset_id",
"base_amount",
"counter_account_id",
"counter_asset_id",
"counter_amount",
"base_is_seller",
},
}
ingest.builders[AssetStatsTableName] = &BatchInsertBuilder{
TableName: AssetStatsTableName,
Columns: []string{
"id",
"amount",
"num_accounts",
"flags",
"toml",
},
}
}
func (ingest *Ingestion) commit() error {
err := ingest.DB.Commit()
if err != nil {
return err
}
return nil
}
func (ingest *Ingestion) formatTimeBounds(bounds *xdr.TimeBounds) interface{} {
if bounds == nil {
return nil
}
if bounds.MaxTime == 0 {
return sq.Expr("?::int8range", fmt.Sprintf("[%d,]", bounds.MinTime))
}
return sq.Expr("?::int8range", fmt.Sprintf("[%d,%d]", bounds.MinTime, bounds.MaxTime))
}