cerc-io/ipld-eth-server
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refactoring event converter and repository so that event logs are

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persisted as they are converted, preventing build up in memory, and finishing  method polling (for full sync)
This commit is contained in:
Ian Norden 2018-11-20 10:38:23 -06:00
parent 390a60f7f6
commit 817bd76713
20 changed files with 570 additions and 327 deletions
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2
cmd/omniWatcher.go
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@ -117,7 +117,7 @@ func init() {
omniWatcherCmd.Flags().StringVarP(&contractAddress, "contract-address", "a", "", "Single address to generate watchers for")
omniWatcherCmd.Flags().StringArrayVarP(&contractAddresses, "contract-addresses", "l", []string{}, "list of addresses to use; warning: watcher targets the same events and methods for each address")
omniWatcherCmd.Flags().StringArrayVarP(&contractEvents, "contract-events", "e", []string{}, "Subset of events to watch; by default all events are watched")
omniWatcherCmd.Flags().StringArrayVarP(&contractEvents, "contract-methods", "m", nil, "Subset of methods to poll; by default no methods are polled")
omniWatcherCmd.Flags().StringArrayVarP(&contractMethods, "contract-methods", "m", nil, "Subset of methods to poll; by default no methods are polled")
omniWatcherCmd.Flags().StringArrayVarP(&eventAddrs, "event-filter-addresses", "f", []string{}, "Account addresses to persist event data for; default is to persist for all found token holder addresses")
omniWatcherCmd.Flags().StringArrayVarP(&methodAddrs, "method-filter-addresses", "g", []string{}, "Account addresses to poll methods with; default is to poll with all found token holder addresses")
omniWatcherCmd.Flags().StringVarP(&network, "network", "n", "", `Network the contract is deployed on; options: "ropsten", "kovan", and "rinkeby"; default is mainnet"`)

4
pkg/omni/contract/contract.go
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@ -34,8 +34,8 @@ type Contract struct {
LastBlock int64
Abi string
ParsedAbi abi.ABI
Events map[string]*types.Event // Map of events to their names
Methods map[string]*types.Method // Map of methods to their names
Events map[string]types.Event // Map of events to their names
Methods map[string]types.Method // Map of methods to their names
Filters map[string]filters.LogFilter // Map of event filters to their names
EventAddrs map[string]bool // User-input list of account addresses to watch events for
MethodAddrs map[string]bool // User-input list of account addresses to poll methods for

16
pkg/omni/converter/converter.go
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@ -33,7 +33,7 @@ import (
// Converter is used to convert watched event logs to
// custom logs containing event input name => value maps
type Converter interface {
Convert(watchedEvent core.WatchedEvent, event *types.Event) error
Convert(watchedEvent core.WatchedEvent, event types.Event) (*types.Log, error)
Update(info *contract.Contract)
}
@ -57,7 +57,7 @@ func (c *converter) CheckInfo() *contract.Contract {
}
// Convert the given watched event log into a types.Log for the given event
func (c *converter) Convert(watchedEvent core.WatchedEvent, event *types.Event) error {
func (c *converter) Convert(watchedEvent core.WatchedEvent, event types.Event) (*types.Log, error) {
contract := bind.NewBoundContract(common.HexToAddress(c.contractInfo.Address), c.contractInfo.ParsedAbi, nil, nil, nil)
values := make(map[string]interface{})
@ -69,7 +69,7 @@ func (c *converter) Convert(watchedEvent core.WatchedEvent, event *types.Event)
log := helpers.ConvertToLog(watchedEvent)
err := contract.UnpackLogIntoMap(values, event.Name, log)
if err != nil {
return err
return nil, err
}
strValues := make(map[string]string, len(values))
@ -95,22 +95,22 @@ func (c *converter) Convert(watchedEvent core.WatchedEvent, event *types.Event)
case bool:
strValues[fieldName] = strconv.FormatBool(input.(bool))
default:
return errors.New("error: unhandled abi type")
return nil, errors.New("error: unhandled abi type")
}
}
// Only hold onto logs that pass our address filter, if any
// Persist log here and don't hold onto it
if c.contractInfo.PassesEventFilter(strValues) {
eventLog := types.Log{
eventLog := &types.Log{
Event: event,
Id: watchedEvent.LogID,
Values: strValues,
Block: watchedEvent.BlockNumber,
Tx: watchedEvent.TxHash,
}
event.Logs[watchedEvent.LogID] = eventLog
return eventLog, err
}
return nil
return nil, nil
}

10
pkg/omni/converter/converter_test.go
View File

@ -76,24 +76,24 @@ var _ = Describe("Converter", func() {
Expect(err).ToNot(HaveOccurred())
c := converter.NewConverter(info)
err = c.Convert(mockEvent, event)
log, err := c.Convert(mockEvent, event)
Expect(err).ToNot(HaveOccurred())
from := common.HexToAddress("0x000000000000000000000000000000000000000000000000000000000000af21")
to := common.HexToAddress("0x9dd48110dcc444fdc242510c09bbbbe21a5975cac061d82f7b843bce061ba391")
value := helpers.BigFromString("1097077688018008265106216665536940668749033598146")
v := event.Logs[1].Values["value"]
v := log.Values["value"]
Expect(event.Logs[1].Values["to"]).To(Equal(to.String()))
Expect(event.Logs[1].Values["from"]).To(Equal(from.String()))
Expect(log.Values["to"]).To(Equal(to.String()))
Expect(log.Values["from"]).To(Equal(from.String()))
Expect(v).To(Equal(value.String()))
})
It("Fails with an empty contract", func() {
event := info.Events["Transfer"]
c := converter.NewConverter(&contract.Contract{})
err = c.Convert(mockEvent, event)
_, err = c.Convert(mockEvent, event)
Expect(err).To(HaveOccurred())
})
})

8
pkg/omni/helpers/mocks/parser.go
View File

@ -57,8 +57,8 @@ func (p *parser) Parse() error {
// Returns wanted methods, if they meet the criteria, as map of types.Methods
// Only returns specified methods
func (p *parser) GetMethods(wanted []string) map[string]*types.Method {
addrMethods := map[string]*types.Method{}
func (p *parser) GetMethods(wanted []string) map[string]types.Method {
addrMethods := map[string]types.Method{}
for _, m := range p.parsedAbi.Methods {
// Only return methods that have less than 3 inputs, 1 output, and wanted
@ -83,8 +83,8 @@ func (p *parser) GetMethods(wanted []string) map[string]*types.Method {
// Returns wanted events as map of types.Events
// If no events are specified, all events are returned
func (p *parser) GetEvents(wanted []string) map[string]*types.Event {
events := map[string]*types.Event{}
func (p *parser) GetEvents(wanted []string) map[string]types.Event {
events := map[string]types.Event{}
for _, e := range p.parsedAbi.Events {
if len(wanted) == 0 || stringInSlice(wanted, e.Name) {

16
pkg/omni/helpers/test_helpers/database.go
View File

@ -41,7 +41,7 @@ var ExpectedTransferFilter = filters.LogFilter{
Name: "Transfer",
Address: constants.TusdContractAddress,
ToBlock: -1,
FromBlock: 5197514,
FromBlock: 6194634,
Topics: core.Topics{constants.TransferEvent.Signature()},
}
@ -49,7 +49,7 @@ var ExpectedApprovalFilter = filters.LogFilter{
Name: "Approval",
Address: constants.TusdContractAddress,
ToBlock: -1,
FromBlock: 5197514,
FromBlock: 6194634,
Topics: core.Topics{constants.ApprovalEvent.Signature()},
}
@ -57,8 +57,6 @@ type TransferLog struct {
Id int64 `db:"id"`
VulvanizeLogId int64 `db:"vulcanize_log_id"`
TokenName string `db:"token_name"`
TokenAddress string `db:"token_address"`
EventName string `db:"event_name"`
Block int64 `db:"block"`
Tx string `db:"tx"`
From string `db:"from_"`
@ -66,6 +64,14 @@ type TransferLog struct {
Value string `db:"value_"`
}
type BalanceOf struct {
Id int64 `db:"id"`
TokenName string `db:"token_name"`
Block int64 `db:"block"`
Address string `db:"who_"`
Balance string `db:"returned"`
}
func SetupBC() core.BlockChain {
infuraIPC := "https://mainnet.infura.io/v3/b09888c1113640cc9ab42750ce750c05"
rawRpcClient, err := rpc.Dial(infuraIPC)
@ -139,7 +145,7 @@ func SetupTusdContract(wantedEvents, wantedMethods []string) *contract.Contract
Address: constants.TusdContractAddress,
Abi: p.Abi(),
ParsedAbi: p.ParsedAbi(),
StartingBlock: 5197514,
StartingBlock: 6194634,
LastBlock: 6507323,
Events: p.GetEvents(wantedEvents),
Methods: p.GetMethods(wantedMethods),

18
pkg/omni/parser/parser.go
View File

@ -29,9 +29,9 @@ type Parser interface {
Parse(contractAddr string) error
Abi() string
ParsedAbi() abi.ABI
GetMethods(wanted []string) map[string]*types.Method
GetAddrMethods(wanted []string) map[string]*types.Method
GetEvents(wanted []string) map[string]*types.Event
GetMethods(wanted []string) map[string]types.Method
GetAddrMethods(wanted []string) map[string]types.Method
GetEvents(wanted []string) map[string]types.Event
}
type parser struct {
@ -73,8 +73,8 @@ func (p *parser) Parse(contractAddr string) error {
// Returns wanted methods, if they meet the criteria, as map of types.Methods
// Empty wanted array => all methods that fit are returned
// Nil wanted array => no events are returned
func (p *parser) GetAddrMethods(wanted []string) map[string]*types.Method {
addrMethods := map[string]*types.Method{}
func (p *parser) GetAddrMethods(wanted []string) map[string]types.Method {
addrMethods := map[string]types.Method{}
if wanted == nil {
return addrMethods
}
@ -103,8 +103,8 @@ func (p *parser) GetAddrMethods(wanted []string) map[string]*types.Method {
// Returns wanted methods as map of types.Methods
// Empty wanted array => all events are returned
// Nil wanted array => no events are returned
func (p *parser) GetMethods(wanted []string) map[string]*types.Method {
methods := map[string]*types.Method{}
func (p *parser) GetMethods(wanted []string) map[string]types.Method {
methods := map[string]types.Method{}
if wanted == nil {
return methods
}
@ -122,8 +122,8 @@ func (p *parser) GetMethods(wanted []string) map[string]*types.Method {
// Returns wanted events as map of types.Events
// Empty wanted array => all events are returned
// Nil wanted array => no events are returned
func (p *parser) GetEvents(wanted []string) map[string]*types.Event {
events := map[string]*types.Event{}
func (p *parser) GetEvents(wanted []string) map[string]types.Event {
events := map[string]types.Event{}
if wanted == nil {
return events
}

12
pkg/omni/parser/parser_test.go
View File

@ -52,8 +52,8 @@ var _ = Describe("Parser", func() {
Expect(ok).To(Equal(false))
m, ok := methods["balanceOf"]
Expect(ok).To(Equal(true))
Expect(len(m.Inputs)).To(Equal(1))
Expect(len(m.Outputs)).To(Equal(1))
Expect(len(m.Args)).To(Equal(1))
Expect(len(m.Return)).To(Equal(1))
events := mp.GetEvents([]string{"Transfer"})
_, ok = events["Mint"]
@ -130,16 +130,16 @@ var _ = Describe("Parser", func() {
m, ok := selectMethods["balanceOf"]
Expect(ok).To(Equal(true))
abiTy := m.Inputs[0].Type.T
abiTy := m.Args[0].Type.T
Expect(abiTy).To(Equal(abi.AddressTy))
pgTy := m.Inputs[0].PgType
pgTy := m.Args[0].PgType
Expect(pgTy).To(Equal("CHARACTER VARYING(66)"))
abiTy = m.Outputs[0].Type.T
abiTy = m.Return[0].Type.T
Expect(abiTy).To(Equal(abi.UintTy))
pgTy = m.Outputs[0].PgType
pgTy = m.Return[0].PgType
Expect(pgTy).To(Equal("DECIMAL"))
_, ok = selectMethods["totalSupply"]

160
pkg/omni/poller/poller.go
View File

@ -18,37 +18,44 @@ package poller
import (
"errors"
"fmt"
"math/big"
"strconv"
"github.com/ethereum/go-ethereum/common"
"github.com/vulcanize/vulcanizedb/pkg/omni/constants"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/omni/contract"
"github.com/vulcanize/vulcanizedb/pkg/omni/repository"
"github.com/vulcanize/vulcanizedb/pkg/omni/types"
)
type Poller interface {
PollContract(con *contract.Contract) error
PollMethod(contractAbi, contractAddress, method string, methodArgs []interface{}, result interface{}, blockNumber int64) error
PollContract(con contract.Contract) error
FetchContractData(contractAbi, contractAddress, method string, methodArgs []interface{}, result interface{}, blockNumber int64) error
}
type poller struct {
repository.MethodDatastore
bc core.BlockChain
contract *contract.Contract
contract contract.Contract
}
func NewPoller(blockChain core.BlockChain) *poller {
func NewPoller(blockChain core.BlockChain, db *postgres.DB) *poller {
return &poller{
MethodDatastore: repository.NewMethodDatastore(db),
bc: blockChain,
}
}
// Used to call contract's methods found in abi using list of contract-related addresses
func (p *poller) PollContract(con *contract.Contract) error {
func (p *poller) PollContract(con contract.Contract) error {
p.contract = con
// Iterate over each of the contracts methods
for _, m := range con.Methods {
switch len(m.Inputs) {
switch len(m.Args) {
case 0:
if err := p.pollNoArg(m); err != nil {
return err
@ -71,76 +78,122 @@ func (p *poller) PollContract(con *contract.Contract) error {
}
// Poll methods that take no arguments
func (p *poller) pollNoArg(m *types.Method) error {
result := &types.Result{
func (p *poller) pollNoArg(m types.Method) error {
result := types.Result{
Method: m,
Inputs: nil,
Outputs: map[int64]interface{}{},
PgType: m.Outputs[0].PgType,
PgType: m.Return[0].PgType,
}
for i := p.contract.StartingBlock; i <= p.contract.LastBlock; i++ {
var res interface{}
err := p.bc.FetchContractData(p.contract.Abi, p.contract.Address, m.Name, result.Inputs, &res, i)
var out interface{}
err := p.bc.FetchContractData(p.contract.Abi, p.contract.Address, m.Name, nil, &out, i)
if err != nil {
return errors.New(fmt.Sprintf("poller error calling 0 argument method\r\nblock: %d, method: %s, contract: %s\r\nerr: %v", i, m.Name, p.contract.Address, err))
}
strOut, err := stringify(out)
if err != nil {
return err
}
result.Outputs[i] = res
}
// Persist results now instead of holding onto them
m.Results = append(m.Results, result)
result.Output = strOut
result.Block = i
// Persist result immediately
err = p.PersistResult(result, p.contract.Address, p.contract.Name)
if err != nil {
return errors.New(fmt.Sprintf("poller error persisting 0 argument method result\r\nblock: %d, method: %s, contract: %s\r\nerr: %v", i, m.Name, p.contract.Address, err))
}
}
return nil
}
// Use token holder address to poll methods that take 1 address argument (e.g. balanceOf)
func (p *poller) pollSingleArg(m *types.Method) error {
for addr := range p.contract.TknHolderAddrs {
result := &types.Result{
func (p *poller) pollSingleArg(m types.Method) error {
result := types.Result{
Method: m,
Inputs: make([]interface{}, 1),
Outputs: map[int64]interface{}{},
PgType: m.Outputs[0].PgType,
PgType: m.Return[0].PgType,
}
result.Inputs[0] = common.HexToAddress(addr)
for addr := range p.contract.TknHolderAddrs {
for i := p.contract.StartingBlock; i <= p.contract.LastBlock; i++ {
var res interface{}
err := p.bc.FetchContractData(constants.TusdAbiString, p.contract.Address, m.Name, result.Inputs, &res, i)
hashArgs := []common.Address{common.HexToAddress(addr)}
in := make([]interface{}, len(hashArgs))
strIn := make([]interface{}, len(hashArgs))
for i, s := range hashArgs {
in[i] = s
strIn[i] = s.String()
}
var out interface{}
err := p.bc.FetchContractData(p.contract.Abi, p.contract.Address, m.Name, in, &out, i)
if err != nil {
return errors.New(fmt.Sprintf("poller error calling 1 argument method\r\nblock: %d, method: %s, contract: %s\r\nerr: %v", i, m.Name, p.contract.Address, err))
}
strOut, err := stringify(out)
if err != nil {
return err
}
result.Outputs[i] = res
}
m.Results = append(m.Results, result)
result.Output = strOut
result.Block = i
result.Inputs = strIn
err = p.PersistResult(result, p.contract.Address, p.contract.Name)
if err != nil {
return errors.New(fmt.Sprintf("poller error persisting 1 argument method result\r\nblock: %d, method: %s, contract: %s\r\nerr: %v", i, m.Name, p.contract.Address, err))
}
}
}
return nil
}
// Use token holder address to poll methods that take 2 address arguments (e.g. allowance)
func (p *poller) pollDoubleArg(m *types.Method) error {
func (p *poller) pollDoubleArg(m types.Method) error {
// For a large block range and address list this will take a really, really long time- maybe we should only do 1 arg methods
result := types.Result{
Method: m,
Inputs: make([]interface{}, 2),
PgType: m.Return[0].PgType,
}
for addr1 := range p.contract.TknHolderAddrs {
for addr2 := range p.contract.TknHolderAddrs {
result := &types.Result{
Inputs: make([]interface{}, 2),
Outputs: map[int64]interface{}{},
PgType: m.Outputs[0].PgType,
}
result.Inputs[0] = common.HexToAddress(addr1)
result.Inputs[1] = common.HexToAddress(addr2)
for i := p.contract.StartingBlock; i <= p.contract.LastBlock; i++ {
var res interface{}
err := p.bc.FetchContractData(p.contract.Abi, p.contract.Address, m.Name, result.Inputs, &res, i)
hashArgs := []common.Address{common.HexToAddress(addr1), common.HexToAddress(addr2)}
in := make([]interface{}, len(hashArgs))
strIn := make([]interface{}, len(hashArgs))
for i, s := range hashArgs {
in[i] = s
strIn[i] = s.String()
}
var out interface{}
err := p.bc.FetchContractData(p.contract.Abi, p.contract.Address, m.Name, in, &out, i)
if err != nil {
return errors.New(fmt.Sprintf("poller error calling 2 argument method\r\nblock: %d, method: %s, contract: %s\r\nerr: %v", i, m.Name, p.contract.Address, err))
}
strOut, err := stringify(out)
if err != nil {
return err
}
result.Outputs[i] = res
result.Output = strOut
result.Block = i
result.Inputs = strIn
err = p.PersistResult(result, p.contract.Address, p.contract.Name)
if err != nil {
return errors.New(fmt.Sprintf("poller error persisting 2 argument method result\r\nblock: %d, method: %s, contract: %s\r\nerr: %v", i, m.Name, p.contract.Address, err))
}
}
m.Results = append(m.Results, result)
}
}
@ -148,6 +201,29 @@ func (p *poller) pollDoubleArg(m *types.Method) error {
}
// This is just a wrapper around the poller blockchain's FetchContractData method
func (p *poller) PollMethod(contractAbi, contractAddress, method string, methodArgs []interface{}, result interface{}, blockNumber int64) error {
func (p *poller) FetchContractData(contractAbi, contractAddress, method string, methodArgs []interface{}, result interface{}, blockNumber int64) error {
return p.bc.FetchContractData(contractAbi, contractAddress, method, methodArgs, result, blockNumber)
}
func stringify(input interface{}) (string, error) {
switch input.(type) {
case *big.Int:
var b *big.Int
b = input.(*big.Int)
return b.String(), nil
case common.Address:
var a common.Address
a = input.(common.Address)
return a.String(), nil
case common.Hash:
var h common.Hash
h = input.(common.Hash)
return h.String(), nil
case string:
return input.(string), nil
case bool:
return strconv.FormatBool(input.(bool)), nil
default:
return "", errors.New("error: unhandled return type")
}
}

80
pkg/omni/poller/poller_test.go
View File

@ -17,12 +17,13 @@
package poller_test
import (
"github.com/ethereum/go-ethereum/common"
"fmt"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/omni/helpers"
"math/big"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/omni/constants"
"github.com/vulcanize/vulcanizedb/pkg/omni/contract"
"github.com/vulcanize/vulcanizedb/pkg/omni/helpers/test_helpers"
@ -33,13 +34,20 @@ var _ = Describe("Poller", func() {
var p poller.Poller
var con *contract.Contract
var db *postgres.DB
var bc core.BlockChain
BeforeEach(func() {
p = poller.NewPoller(test_helpers.SetupBC())
db, bc = test_helpers.SetupDBandBC()
p = poller.NewPoller(bc, db)
})
AfterEach(func() {
test_helpers.TearDown(db)
})
Describe("PollContract", func() {
It("Polls contract methods using token holder address list", func() {
It("Polls specified contract methods using contract's token holder address list", func() {
con = test_helpers.SetupTusdContract(nil, []string{"balanceOf"})
Expect(con.Abi).To(Equal(constants.TusdAbiString))
con.StartingBlock = 6707322
@ -49,36 +57,56 @@ var _ = Describe("Poller", func() {
"0x3f5CE5FBFe3E9af3971dD833D26bA9b5C936f0bE": true,
}
err := p.PollContract(con)
err := p.PollContract(*con)
Expect(err).ToNot(HaveOccurred())
Expect(len(con.Methods["balanceOf"].Results)).To(Equal(2))
res1 := con.Methods["balanceOf"].Results[0]
res2 := con.Methods["balanceOf"].Results[1]
expectedRes11 := helpers.BigFromString("66386309548896882859581786")
expectedRes12 := helpers.BigFromString("66386309548896882859581786")
expectedRes21 := helpers.BigFromString("17982350181394112023885864")
expectedRes22 := helpers.BigFromString("17982350181394112023885864")
if res1.Inputs[0].(common.Address).String() == "0xfE9e8709d3215310075d67E3ed32A380CCf451C8" {
Expect(res2.Inputs[0].(common.Address).String()).To(Equal("0x3f5CE5FBFe3E9af3971dD833D26bA9b5C936f0bE"))
Expect(res1.Outputs[6707322].(*big.Int).String()).To(Equal(expectedRes11.String()))
Expect(res1.Outputs[6707323].(*big.Int).String()).To(Equal(expectedRes12.String()))
Expect(res2.Outputs[6707322].(*big.Int).String()).To(Equal(expectedRes21.String()))
Expect(res2.Outputs[6707323].(*big.Int).String()).To(Equal(expectedRes22.String()))
} else {
Expect(res2.Inputs[0].(common.Address).String()).To(Equal("0xfE9e8709d3215310075d67E3ed32A380CCf451C8"))
Expect(res2.Outputs[6707322].(*big.Int).String()).To(Equal(expectedRes11.String()))
Expect(res2.Outputs[6707323].(*big.Int).String()).To(Equal(expectedRes12.String()))
Expect(res1.Outputs[6707322].(*big.Int).String()).To(Equal(expectedRes21.String()))
Expect(res1.Outputs[6707323].(*big.Int).String()).To(Equal(expectedRes22.String()))
scanStruct := test_helpers.BalanceOf{}
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.balanceof_method WHERE who_ = '0xfE9e8709d3215310075d67E3ed32A380CCf451C8' AND block = '6707322'", constants.TusdContractAddress)).StructScan(&scanStruct)
Expect(err).ToNot(HaveOccurred())
Expect(scanStruct.Balance).To(Equal("66386309548896882859581786"))
Expect(scanStruct.TokenName).To(Equal("TrueUSD"))
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.balanceof_method WHERE who_ = '0xfE9e8709d3215310075d67E3ed32A380CCf451C8' AND block = '6707323'", constants.TusdContractAddress)).StructScan(&scanStruct)
Expect(err).ToNot(HaveOccurred())
Expect(scanStruct.Balance).To(Equal("66386309548896882859581786"))
Expect(scanStruct.TokenName).To(Equal("TrueUSD"))
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.balanceof_method WHERE who_ = '0x3f5CE5FBFe3E9af3971dD833D26bA9b5C936f0bE' AND block = '6707322'", constants.TusdContractAddress)).StructScan(&scanStruct)
Expect(err).ToNot(HaveOccurred())
Expect(scanStruct.Balance).To(Equal("17982350181394112023885864"))
Expect(scanStruct.TokenName).To(Equal("TrueUSD"))
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.balanceof_method WHERE who_ = '0x3f5CE5FBFe3E9af3971dD833D26bA9b5C936f0bE' AND block = '6707323'", constants.TusdContractAddress)).StructScan(&scanStruct)
Expect(err).ToNot(HaveOccurred())
Expect(scanStruct.Balance).To(Equal("17982350181394112023885864"))
Expect(scanStruct.TokenName).To(Equal("TrueUSD"))
})
It("Does not poll and persist any methods if none are specified", func() {
con = test_helpers.SetupTusdContract(nil, nil)
Expect(con.Abi).To(Equal(constants.TusdAbiString))
con.StartingBlock = 6707322
con.LastBlock = 6707323
con.TknHolderAddrs = map[string]bool{
"0xfE9e8709d3215310075d67E3ed32A380CCf451C8": true,
"0x3f5CE5FBFe3E9af3971dD833D26bA9b5C936f0bE": true,
}
err := p.PollContract(*con)
Expect(err).ToNot(HaveOccurred())
scanStruct := test_helpers.BalanceOf{}
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.balanceof_method WHERE who_ = '0xfE9e8709d3215310075d67E3ed32A380CCf451C8' AND block = '6707322'", constants.TusdContractAddress)).StructScan(&scanStruct)
Expect(err).To(HaveOccurred())
})
})
Describe("PollMethod", func() {
It("Polls a single contract method", func() {
var name = new(string)
err := p.PollMethod(constants.TusdAbiString, constants.TusdContractAddress, "name", nil, &name, 6197514)
err := p.FetchContractData(constants.TusdAbiString, constants.TusdContractAddress, "name", nil, &name, 6197514)
Expect(err).ToNot(HaveOccurred())
Expect(*name).To(Equal("TrueUSD"))
})

68
pkg/omni/repository/event_repository.go
View File

@ -22,14 +22,13 @@ import (
"strings"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/omni/contract"
"github.com/vulcanize/vulcanizedb/pkg/omni/types"
)
// Event datastore is used to persist event data into custom tables
type EventDatastore interface {
PersistContractEvents(con *contract.Contract) error
CreateEventTable(contractName string, event *types.Event) (bool, error)
PersistLog(event types.Log, contractAddr, contractName string) error
CreateEventTable(contractName string, event types.Log) (bool, error)
CreateContractSchema(contractName string) (bool, error)
}
@ -44,62 +43,41 @@ func NewEventDataStore(db *postgres.DB) *eventDatastore {
}
}
// Creates a schema for the contract
// Creates tables for the watched contract events
// Persists converted event log data into these custom tables
// Edit this method to accept a single event
func (d *eventDatastore) PersistContractEvents(con *contract.Contract) error {
_, err := d.CreateContractSchema(con.Address)
// Creates a schema for the contract if needed
// Creates table for the watched contract event if needed
// Persists converted event log data into this custom table
func (d *eventDatastore) PersistLog(event types.Log, contractAddr, contractName string) error {
_, err := d.CreateContractSchema(contractAddr)
if err != nil {
return err
}
for eventName := range con.Filters {
event := con.Events[eventName]
// Move to next event if there are no logs to process
if len(event.Logs) == 0 {
break
}
// Create a pg table for the event if one does not already exist
_, err = d.CreateEventTable(con.Address, event)
_, err = d.CreateEventTable(contractAddr, event)
if err != nil {
return err
}
// Persist event log data in this table
err = d.persistLogs(eventName, con)
if err != nil {
return err
}
// Clear logs when we are done using them
event.Logs = map[int64]types.Log{}
}
return nil
return d.persistLog(event, contractAddr, contractName)
}
// Creates a custom postgres command to persist logs for the given event
func (d *eventDatastore) persistLogs(eventName string, con *contract.Contract) error {
for id, log := range con.Events[eventName].Logs {
func (d *eventDatastore) persistLog(event types.Log, contractAddr, contractName string) error {
// Begin postgres string
pgStr := fmt.Sprintf("INSERT INTO c%s.%s ", strings.ToLower(con.Address), strings.ToLower(eventName))
pgStr := fmt.Sprintf("INSERT INTO c%s.%s_event ", strings.ToLower(contractAddr), strings.ToLower(event.Name))
pgStr = pgStr + "(vulcanize_log_id, token_name, block, tx"
// Pack the corresponding variables in a slice
var data []interface{}
data = append(data,
id,
con.Name,
log.Block,
log.Tx)
event.Id,
contractName,
event.Block,
event.Tx)
// Iterate over name-value pairs in the log adding
// names to the string and pushing values to the slice
counter := 0 // Keep track of number of inputs
for inputName, input := range log.Values {
for inputName, input := range event.Values {
counter += 1
pgStr = pgStr + fmt.Sprintf(", %s_", strings.ToLower(inputName)) // Add underscore after to avoid any collisions with reserved pg words
data = append(data, input)
@ -117,20 +95,19 @@ func (d *eventDatastore) persistLogs(eventName string, con *contract.Contract) e
if err != nil {
return err
}
}
return nil
}
// Checks for event table and creates it if it does not already exist
func (d *eventDatastore) CreateEventTable(contractName string, event *types.Event) (bool, error) {
tableExists, err := d.checkForTable(contractName, event.Name)
func (d *eventDatastore) CreateEventTable(contractAddr string, event types.Log) (bool, error) {
tableExists, err := d.checkForTable(contractAddr, event.Name)
if err != nil {
return false, err
}
if !tableExists {
err = d.newEventTable(contractName, event)
err = d.newEventTable(contractAddr, event)
if err != nil {
return false, err
}
@ -140,9 +117,9 @@ func (d *eventDatastore) CreateEventTable(contractName string, event *types.Even
}
// Creates a table for the given contract and event
func (d *eventDatastore) newEventTable(contractAddr string, event *types.Event) error {
func (d *eventDatastore) newEventTable(contractAddr string, event types.Log) error {
// Begin pg string
pgStr := fmt.Sprintf("CREATE TABLE IF NOT EXISTS c%s.%s ", strings.ToLower(contractAddr), strings.ToLower(event.Name))
pgStr := fmt.Sprintf("CREATE TABLE IF NOT EXISTS c%s.%s_event ", strings.ToLower(contractAddr), strings.ToLower(event.Name))
pgStr = pgStr + "(id SERIAL, vulcanize_log_id INTEGER NOT NULL UNIQUE, token_name CHARACTER VARYING(66) NOT NULL, block INTEGER NOT NULL, tx CHARACTER VARYING(66) NOT NULL,"
// Iterate over event fields, using their name and pgType to grow the string
@ -158,7 +135,7 @@ func (d *eventDatastore) newEventTable(contractAddr string, event *types.Event)
// Checks if a table already exists for the given contract and event
func (d *eventDatastore) checkForTable(contractAddr string, eventName string) (bool, error) {
pgStr := fmt.Sprintf("SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_schema = 'c%s' AND table_name = '%s')", strings.ToLower(contractAddr), strings.ToLower(eventName))
pgStr := fmt.Sprintf("SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_schema = 'c%s' AND table_name = '%s_event')", strings.ToLower(contractAddr), strings.ToLower(eventName))
var exists bool
err := d.DB.Get(&exists, pgStr)
@ -171,6 +148,7 @@ func (d *eventDatastore) CreateContractSchema(contractAddr string) (bool, error)
if contractAddr == "" {
return false, errors.New("error: no contract address specified")
}
schemaExists, err := d.checkForSchema(contractAddr)
if err != nil {
return false, err

44
pkg/omni/repository/event_repository_test.go
View File

@ -18,8 +18,6 @@ package repository_test
import (
"fmt"
"math/rand"
"time"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
@ -51,11 +49,11 @@ var _ = Describe("Repository", func() {
var db *postgres.DB
var dataStore repository.EventDatastore
var err error
var log *types.Log
var con *contract.Contract
var vulcanizeLogId int64
var wantedEvents = []string{"Transfer"}
var event *types.Event
rand.Seed(time.Now().UnixNano())
var event types.Event
BeforeEach(func() {
db, con = test_helpers.SetupTusdRepo(&vulcanizeLogId, wantedEvents, []string{})
@ -66,7 +64,7 @@ var _ = Describe("Repository", func() {
Expect(err).ToNot(HaveOccurred())
c := converter.NewConverter(con)
err = c.Convert(mockEvent, event)
log, err = c.Convert(mockEvent, event)
Expect(err).ToNot(HaveOccurred())
dataStore = repository.NewEventDataStore(db)
@ -88,25 +86,25 @@ var _ = Describe("Repository", func() {
})
})
Describe("CreateContractTable", func() {
Describe("CreateEventTable", func() {
It("Creates table if it doesn't exist", func() {
created, err := dataStore.CreateContractSchema(con.Address)
Expect(err).ToNot(HaveOccurred())
Expect(created).To(Equal(true))
created, err = dataStore.CreateEventTable(con.Address, event)
created, err = dataStore.CreateEventTable(con.Address, *log)
Expect(err).ToNot(HaveOccurred())
Expect(created).To(Equal(true))
created, err = dataStore.CreateEventTable(con.Address, event)
created, err = dataStore.CreateEventTable(con.Address, *log)
Expect(err).ToNot(HaveOccurred())
Expect(created).To(Equal(false))
})
})
Describe("PersistContractEvents", func() {
It("Persists contract event values into custom tables, adding any addresses to a growing list of contract associated addresses", func() {
err = dataStore.PersistContractEvents(con)
Describe("PersistLog", func() {
It("Persists contract event log values into custom tables, adding any addresses to a growing list of contract associated addresses", func() {
err = dataStore.PersistLog(*log, con.Address, con.Name)
Expect(err).ToNot(HaveOccurred())
b, ok := con.TknHolderAddrs["0x000000000000000000000000000000000000Af21"]
@ -117,9 +115,9 @@ var _ = Describe("Repository", func() {
Expect(ok).To(Equal(true))
Expect(b).To(Equal(true))
log := test_helpers.TransferLog{}
scanLog := test_helpers.TransferLog{}
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.Transfer", constants.TusdContractAddress)).StructScan(&log)
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.transfer_event", constants.TusdContractAddress)).StructScan(&scanLog)
expectedLog := test_helpers.TransferLog{
Id: 1,
VulvanizeLogId: vulcanizeLogId,
@ -130,17 +128,17 @@ var _ = Describe("Repository", func() {
To: "0x09BbBBE21a5975cAc061D82f7b843bCE061BA391",
Value: "1097077688018008265106216665536940668749033598146",
}
Expect(log).To(Equal(expectedLog))
Expect(scanLog).To(Equal(expectedLog))
})
It("Doesn't persist duplicate event logs", func() {
// Perist once
err = dataStore.PersistContractEvents(con)
err = dataStore.PersistLog(*log, con.Address, con.Name)
Expect(err).ToNot(HaveOccurred())
log := test_helpers.TransferLog{}
scanLog := test_helpers.TransferLog{}
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.Transfer", constants.TusdContractAddress)).StructScan(&log)
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.transfer_event", constants.TusdContractAddress)).StructScan(&scanLog)
expectedLog := test_helpers.TransferLog{
Id: 1,
VulvanizeLogId: vulcanizeLogId,
@ -152,21 +150,21 @@ var _ = Describe("Repository", func() {
Value: "1097077688018008265106216665536940668749033598146",
}
Expect(log).To(Equal(expectedLog))
Expect(scanLog).To(Equal(expectedLog))
// Attempt to persist the same contract again
err = dataStore.PersistContractEvents(con)
// Attempt to persist the same log again
err = dataStore.PersistLog(*log, con.Address, con.Name)
Expect(err).ToNot(HaveOccurred())
// Show that no new logs were entered
var count int
err = db.Get(&count, fmt.Sprintf("SELECT COUNT(*) FROM c%s.Transfer", constants.TusdContractAddress))
err = db.Get(&count, fmt.Sprintf("SELECT COUNT(*) FROM c%s.transfer_event", constants.TusdContractAddress))
Expect(err).ToNot(HaveOccurred())
Expect(count).To(Equal(1))
})
It("Fails with empty contract", func() {
err = dataStore.PersistContractEvents(&contract.Contract{})
It("Fails with empty log", func() {
err = dataStore.PersistLog(types.Log{}, con.Address, con.Name)
Expect(err).To(HaveOccurred())
})
})

114
pkg/omni/repository/method_repository.go
View File

@ -17,18 +17,18 @@
package repository
import (
"errors"
"fmt"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/omni/contract"
"github.com/vulcanize/vulcanizedb/pkg/omni/types"
"strings"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/omni/types"
)
type MethodDatastore interface {
PersistContractMethods(con *contract.Contract) error
PersistResults(methodName string, con *contract.Contract) error
CreateMethodTable(contractName string, method *types.Method) error
CreateContractSchema(contractName string) error
PersistResult(method types.Result, contractAddr, contractName string) error
CreateMethodTable(contractAddr string, method types.Result) (bool, error)
CreateContractSchema(contractAddr string) (bool, error)
}
type methodDatastore struct {
@ -42,68 +42,96 @@ func NewMethodDatastore(db *postgres.DB) *methodDatastore {
}
}
func (d *methodDatastore) PersistContractMethods(con *contract.Contract) error {
err := d.CreateContractSchema(con.Name)
func (d *methodDatastore) PersistResult(method types.Result, contractAddr, contractName string) error {
if len(method.Args) != len(method.Inputs) {
return errors.New("error: given number of inputs does not match number of method arguments")
}
if len(method.Return) != 1 {
return errors.New("error: given number of outputs does not match number of method return values")
}
_, err := d.CreateContractSchema(contractAddr)
if err != nil {
return err
}
for _, method := range con.Methods {
err = d.CreateMethodTable(con.Name, method)
_, err = d.CreateMethodTable(contractAddr, method)
if err != nil {
return err
}
//TODO: Persist method data
}
return nil
return d.persistResult(method, contractAddr, contractName)
}
// Creates a custom postgres command to persist logs for the given event
func (d *methodDatastore) PersistResults(methodName string, con *contract.Contract) error {
for _, result := range con.Methods[methodName].Results {
println(result)
//TODO: Persist result data
func (d *methodDatastore) persistResult(method types.Result, contractAddr, contractName string) error {
// Begin postgres string
pgStr := fmt.Sprintf("INSERT INTO c%s.%s_method ", strings.ToLower(contractAddr), strings.ToLower(method.Name))
pgStr = pgStr + "(token_name, block"
// Pack the corresponding variables in a slice
var data []interface{}
data = append(data,
contractName,
method.Block)
// Iterate over method args and return value, adding names
// to the string and pushing values to the slice
counter := 0 // Keep track of number of inputs
for i, arg := range method.Args {
counter += 1
pgStr = pgStr + fmt.Sprintf(", %s_", strings.ToLower(arg.Name)) // Add underscore after to avoid any collisions with reserved pg words
data = append(data, method.Inputs[i])
}
counter += 1
pgStr = pgStr + ", returned) VALUES ($1, $2"
data = append(data, method.Output)
// For each input entry we created we add its postgres command variable to the string
for i := 0; i < counter; i++ {
pgStr = pgStr + fmt.Sprintf(", $%d", i+3)
}
pgStr = pgStr + ")"
_, err := d.DB.Exec(pgStr, data...)
if err != nil {
return err
}
return nil
}
// Checks for event table and creates it if it does not already exist
func (d *methodDatastore) CreateMethodTable(contractAddr string, method *types.Method) error {
func (d *methodDatastore) CreateMethodTable(contractAddr string, method types.Result) (bool, error) {
tableExists, err := d.checkForTable(contractAddr, method.Name)
if err != nil {
return err
return false, err
}
if !tableExists {
err = d.newMethodTable(contractAddr, method)
if err != nil {
return err
return false, err
}
}
return nil
return !tableExists, nil
}
// Creates a table for the given contract and event
func (d *methodDatastore) newMethodTable(contractAddr string, method *types.Method) error {
func (d *methodDatastore) newMethodTable(contractAddr string, method types.Result) error {
// Begin pg string
pgStr := fmt.Sprintf("CREATE TABLE IF NOT EXISTS _%s.%s ", strings.ToLower(contractAddr), strings.ToLower(method.Name))
pgStr := fmt.Sprintf("CREATE TABLE IF NOT EXISTS c%s.%s_method ", strings.ToLower(contractAddr), strings.ToLower(method.Name))
pgStr = pgStr + "(id SERIAL, token_name CHARACTER VARYING(66) NOT NULL, block INTEGER NOT NULL,"
// Iterate over method inputs and outputs, using their name and pgType to grow the string
for _, input := range method.Inputs {
pgStr = pgStr + fmt.Sprintf("%s_ %s NOT NULL,", strings.ToLower(input.Name), input.PgType)
for _, arg := range method.Args {
pgStr = pgStr + fmt.Sprintf(" %s_ %s NOT NULL,", strings.ToLower(arg.Name), arg.PgType)
}
for _, output := range method.Outputs {
pgStr = pgStr + fmt.Sprintf(" %s_ %s NOT NULL,", strings.ToLower(output.Name), output.PgType)
}
pgStr = pgStr + fmt.Sprintf(" returned %s NOT NULL)", method.Return[0].PgType)
pgStr = pgStr[:len(pgStr)-1] + ")"
_, err := d.DB.Exec(pgStr)
return err
@ -111,7 +139,7 @@ func (d *methodDatastore) newMethodTable(contractAddr string, method *types.Meth
// Checks if a table already exists for the given contract and event
func (d *methodDatastore) checkForTable(contractAddr string, methodName string) (bool, error) {
pgStr := fmt.Sprintf("SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_schema = '_%s' AND table_name = '%s')", strings.ToLower(contractAddr), strings.ToLower(methodName))
pgStr := fmt.Sprintf("SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_schema = 'c%s' AND table_name = '%s_method')", strings.ToLower(contractAddr), strings.ToLower(methodName))
var exists bool
err := d.DB.Get(&exists, pgStr)
@ -119,32 +147,36 @@ func (d *methodDatastore) checkForTable(contractAddr string, methodName string)
}
// Checks for contract schema and creates it if it does not already exist
func (d *methodDatastore) CreateContractSchema(contractName string) error {
schemaExists, err := d.checkForSchema(contractName)
func (d *methodDatastore) CreateContractSchema(contractAddr string) (bool, error) {
if contractAddr == "" {
return false, errors.New("error: no contract address specified")
}
schemaExists, err := d.checkForSchema(contractAddr)
if err != nil {
return err
return false, err
}
if !schemaExists {
err = d.newContractSchema(contractName)
err = d.newContractSchema(contractAddr)
if err != nil {
return err
return false, err
}
}
return nil
return !schemaExists, nil
}
// Creates a schema for the given contract
func (d *methodDatastore) newContractSchema(contractAddr string) error {
_, err := d.DB.Exec("CREATE SCHEMA IF NOT EXISTS _" + strings.ToLower(contractAddr))
_, err := d.DB.Exec("CREATE SCHEMA IF NOT EXISTS c" + strings.ToLower(contractAddr))
return err
}
// Checks if a schema already exists for the given contract
func (d *methodDatastore) checkForSchema(contractAddr string) (bool, error) {
pgStr := fmt.Sprintf("SELECT EXISTS (SELECT schema_name FROM information_schema.schemata WHERE schema_name = '_%s')", strings.ToLower(contractAddr))
pgStr := fmt.Sprintf("SELECT EXISTS (SELECT schema_name FROM information_schema.schemata WHERE schema_name = 'c%s')", strings.ToLower(contractAddr))
var exists bool
err := d.DB.Get(&exists, pgStr)

96
pkg/omni/repository/method_repository_test.go
View File

@ -14,4 +14,98 @@
// 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 repository
package repository_test
import (
"fmt"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/omni/constants"
"github.com/vulcanize/vulcanizedb/pkg/omni/contract"
"github.com/vulcanize/vulcanizedb/pkg/omni/helpers/test_helpers"
"github.com/vulcanize/vulcanizedb/pkg/omni/repository"
"github.com/vulcanize/vulcanizedb/pkg/omni/types"
)
var _ = Describe("Repository", func() {
var db *postgres.DB
var dataStore repository.MethodDatastore
var con *contract.Contract
var err error
var mockResult types.Result
BeforeEach(func() {
con = test_helpers.SetupTusdContract([]string{}, []string{"balanceOf"})
method := con.Methods["balanceOf"]
mockResult = types.Result{
Method: method,
PgType: method.Return[0].PgType,
Inputs: make([]interface{}, 1),
Output: new(interface{}),
Block: 6707323,
}
mockResult.Inputs[0] = "0xfE9e8709d3215310075d67E3ed32A380CCf451C8"
mockResult.Output = "66386309548896882859581786"
db, _ = test_helpers.SetupDBandBC()
dataStore = repository.NewMethodDatastore(db)
})
AfterEach(func() {
test_helpers.TearDown(db)
})
Describe("CreateContractSchema", func() {
It("Creates schema if it doesn't exist", func() {
created, err := dataStore.CreateContractSchema(constants.TusdContractAddress)
Expect(err).ToNot(HaveOccurred())
Expect(created).To(Equal(true))
created, err = dataStore.CreateContractSchema(constants.TusdContractAddress)
Expect(err).ToNot(HaveOccurred())
Expect(created).To(Equal(false))
})
})
Describe("CreateMethodTable", func() {
It("Creates table if it doesn't exist", func() {
created, err := dataStore.CreateContractSchema(constants.TusdContractAddress)
Expect(err).ToNot(HaveOccurred())
Expect(created).To(Equal(true))
created, err = dataStore.CreateMethodTable(constants.TusdContractAddress, mockResult)
Expect(err).ToNot(HaveOccurred())
Expect(created).To(Equal(true))
created, err = dataStore.CreateMethodTable(constants.TusdContractAddress, mockResult)
Expect(err).ToNot(HaveOccurred())
Expect(created).To(Equal(false))
})
})
Describe("PersistResult", func() {
It("Persists result from method polling in custom pg table", func() {
err = dataStore.PersistResult(mockResult, con.Address, con.Name)
Expect(err).ToNot(HaveOccurred())
scanStruct := test_helpers.BalanceOf{}
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.balanceof_method", constants.TusdContractAddress)).StructScan(&scanStruct)
expectedLog := test_helpers.BalanceOf{
Id: 1,
TokenName: "TrueUSD",
Block: 6707323,
Address: "0xfE9e8709d3215310075d67E3ed32A380CCf451C8",
Balance: "66386309548896882859581786",
}
Expect(scanStruct).To(Equal(expectedLog))
})
It("Fails with empty result", func() {
err = dataStore.PersistResult(types.Result{}, con.Address, con.Name)
Expect(err).To(HaveOccurred())
})
})
})

4
pkg/omni/retriever/address_retriever.go
View File

@ -85,7 +85,7 @@ func (r *addressRetriever) retrieveTransferAddresses(con contract.Contract) ([]s
if field.Type.T == abi.AddressTy { // If they have address type, retrieve those addresses
addrs := make([]string, 0)
pgStr := fmt.Sprintf("SELECT %s_ FROM c%s.%s", strings.ToLower(field.Name), strings.ToLower(con.Address), strings.ToLower(event.Name))
pgStr := fmt.Sprintf("SELECT %s_ FROM c%s.%s_event", strings.ToLower(field.Name), strings.ToLower(con.Address), strings.ToLower(event.Name))
err := r.DB.Select(&addrs, pgStr)
if err != nil {
return []string{}, err
@ -106,7 +106,7 @@ func (r *addressRetriever) retrieveTokenMintees(con contract.Contract) ([]string
if field.Type.T == abi.AddressTy { // If they have address type, retrieve those addresses
addrs := make([]string, 0)
pgStr := fmt.Sprintf("SELECT %s_ FROM c%s.%s", strings.ToLower(field.Name), strings.ToLower(con.Address), strings.ToLower(event.Name))
pgStr := fmt.Sprintf("SELECT %s_ FROM c%s.%s_event", strings.ToLower(field.Name), strings.ToLower(con.Address), strings.ToLower(event.Name))
err := r.DB.Select(&addrs, pgStr)
if err != nil {
return []string{}, err

6
pkg/omni/retriever/address_retriever_test.go
View File

@ -20,6 +20,7 @@ import (
"github.com/ethereum/go-ethereum/common"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/omni/types"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
@ -50,6 +51,7 @@ var _ = Describe("Address Retriever Test", func() {
var err error
var info *contract.Contract
var vulcanizeLogId int64
var log *types.Log
var r retriever.AddressRetriever
var addresses map[common.Address]bool
var wantedEvents = []string{"Transfer"}
@ -63,11 +65,11 @@ var _ = Describe("Address Retriever Test", func() {
Expect(err).ToNot(HaveOccurred())
c := converter.NewConverter(info)
err = c.Convert(mockEvent, event)
log, err = c.Convert(mockEvent, event)
Expect(err).ToNot(HaveOccurred())
dataStore = repository.NewEventDataStore(db)
dataStore.PersistContractEvents(info)
dataStore.PersistLog(*log, info.Address, info.Name)
Expect(err).ToNot(HaveOccurred())
r = retriever.NewAddressRetriever(db)

17
pkg/omni/transformer/integration_test.go
View File

@ -1,17 +0,0 @@
// VulcanizeDB
// Copyright © 2018 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 transformer_test

59
pkg/omni/transformer/transformer.go
View File

@ -49,19 +49,21 @@ type Transformer interface {
}
type transformer struct {
Network string // Ethereum network name; default/"" is mainnet
// Database interfaces
datastore.FilterRepository // Holds watched event log filters
datastore.WatchedEventRepository // Holds watched event log views, created with the filters
datastore.FilterRepository // Log filters repo; accepts filters generated by Contract.GenerateFilters()
datastore.WatchedEventRepository // Watched event log views, created by the log filters
repository.EventDatastore // Holds transformed watched event log data
// Pre-processing interfaces
parser.Parser // Parses events and methods out of contract abi fetched using contract address
retriever.BlockRetriever // Retrieves first block for contract and current block height
// Processing interfaces
parser.Parser // Parses events out of contract abi fetched with addr
retriever.BlockRetriever // Retrieves first block with contract addr referenced
retriever.AddressRetriever // Retrieves token holder addresses
converter.Converter // Converts watched event logs into custom log
poller.Poller // Polls methods using contract's token holder addresses
poller.Poller // Polls methods using contract's token holder addresses and persists them using method datastore
// Ethereum network name; default "" is mainnet
Network string
// Store contract info as mapping to contract address
Contracts map[string]*contract.Contract
@ -84,7 +86,7 @@ type transformer struct {
func NewTransformer(network string, BC core.BlockChain, DB *postgres.DB) *transformer {
return &transformer{
Poller: poller.NewPoller(BC),
Poller: poller.NewPoller(BC, DB),
Parser: parser.NewParser(network),
BlockRetriever: retriever.NewBlockRetriever(DB),
Converter: converter.NewConverter(&contract.Contract{}),
@ -133,7 +135,7 @@ func (t *transformer) Init() error {
// Get contract name
var name = new(string)
err = t.PollMethod(t.Abi(), contractAddr, "name", nil, &name, lastBlock)
err = t.FetchContractData(t.Abi(), contractAddr, "name", nil, &name, lastBlock)
if err != nil {
return errors.New(fmt.Sprintf("unable to fetch contract name: %v\r\n", err))
}
@ -169,22 +171,27 @@ func (t *transformer) Init() error {
return err
}
// Iterate over filters and push them to the repo
// Iterate over filters and push them to the repo using filter repository interface
for _, filter := range info.Filters {
t.CreateFilter(filter)
}
// Store contract info for further processing
t.Contracts[contractAddr] = info
}
return nil
}
// Iterate through contracts, updating the
// converter with each one and using it to
// convert watched event logs.
// Then persist them into the postgres db
// Iterates through stored, initialized contract objects
// Iterates through contract's event filters, grabbing watched event logs
// Uses converter to convert logs into custom log type
// Persists converted logs into custuom postgres tables
// Calls selected methods, using token holder address generated during event log conversion
func (tr transformer) Execute() error {
if len(tr.Contracts) == 0 {
return errors.New("error: transformer has no initialized contracts to work with")
}
// Iterate through all internal contracts
for _, con := range tr.Contracts {
@ -199,20 +206,28 @@ func (tr transformer) Execute() error {
return err
}
// Iterate over watched event logs and convert them
// Iterate over watched event logs
for _, we := range watchedEvents {
err = tr.Converter.Convert(*we, con.Events[eventName])
// Convert them to our custom log type
log, err := tr.Converter.Convert(*we, con.Events[eventName])
if err != nil {
return err
}
// And immediately persist converted logs in repo
// Run this in seperate goroutine?
err = tr.PersistLog(*log, con.Address, con.Name)
if err != nil {
return err
}
}
}
// After converting all logs for events of interest, persist all of the data
// Change this so that event logs are persisted immediately after being created
// So as to prevent a huge growth of data in the contract memory
err := tr.PersistContractEvents(con)
if err != nil {
// After persisting all watched event logs
// poller polls select contract methods
// and persists the results into custom pg tables
// Run this in seperate goroutine?
if err := tr.PollContract(*con); err != nil {
return err
}
}

40
pkg/omni/transformer/transformer_test.go
View File

@ -34,14 +34,14 @@ import (
var block1 = core.Block{
Hash: "0x135391a0962a63944e5908e6fedfff90fb4be3e3290a21017861099bad123ert",
Number: 5194634,
Number: 6194633,
Transactions: []core.Transaction{{
Hash: "0x135391a0962a63944e5908e6fedfff90fb4be3e3290a21017861099bad654aaa",
Receipt: core.Receipt{
TxHash: "0x135391a0962a63944e5908e6fedfff90fb4be3e3290a21017861099bad654aaa",
ContractAddress: "",
Logs: []core.Log{{
BlockNumber: 5194634,
BlockNumber: 6194633,
TxHash: "0x135391a0962a63944e5908e6fedfff90fb4be3e3290a21017861099bad654aaa",
Address: constants.TusdContractAddress,
Topics: core.Topics{
@ -155,7 +155,7 @@ var _ = Describe("Transformer", func() {
c, ok := t.Contracts[constants.TusdContractAddress]
Expect(ok).To(Equal(true))
Expect(c.StartingBlock).To(Equal(int64(5194634)))
Expect(c.StartingBlock).To(Equal(int64(6194633)))
Expect(c.LastBlock).To(Equal(int64(6194634)))
Expect(c.Abi).To(Equal(constants.TusdAbiString))
Expect(c.Name).To(Equal("TrueUSD"))
@ -190,6 +190,7 @@ var _ = Describe("Transformer", func() {
It("Transforms watched contract data into custom repositories", func() {
t := transformer.NewTransformer("", blockChain, db)
t.SetEvents(constants.TusdContractAddress, []string{"Transfer"})
t.SetMethods(constants.TusdContractAddress, nil)
err = t.Init()
Expect(err).ToNot(HaveOccurred())
@ -197,7 +198,7 @@ var _ = Describe("Transformer", func() {
Expect(err).ToNot(HaveOccurred())
log := test_helpers.TransferLog{}
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.transfer WHERE block = 6194634", constants.TusdContractAddress)).StructScan(&log)
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.transfer_event WHERE block = 6194634", constants.TusdContractAddress)).StructScan(&log)
// We don't know vulcID, so compare individual fields instead of complete structures
Expect(log.Tx).To(Equal("0x135391a0962a63944e5908e6fedfff90fb4be3e3290a21017861099bad654eee"))
@ -210,6 +211,7 @@ var _ = Describe("Transformer", func() {
It("Keeps track of contract-related addresses while transforming event data", func() {
t := transformer.NewTransformer("", blockChain, db)
t.SetEvents(constants.TusdContractAddress, []string{"Transfer"})
t.SetMethods(constants.TusdContractAddress, nil)
err = t.Init()
Expect(err).ToNot(HaveOccurred())
@ -233,5 +235,35 @@ var _ = Describe("Transformer", func() {
_, ok = c.TknHolderAddrs["0x"]
Expect(ok).To(Equal(false))
})
It("Polls given methods using generated token holder address", func() {
t := transformer.NewTransformer("", blockChain, db)
t.SetEvents(constants.TusdContractAddress, []string{"Transfer"})
t.SetMethods(constants.TusdContractAddress, []string{"balanceOf"})
err = t.Init()
Expect(err).ToNot(HaveOccurred())
err = t.Execute()
Expect(err).ToNot(HaveOccurred())
res := test_helpers.BalanceOf{}
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.balanceof_method WHERE who_ = '0x000000000000000000000000000000000000Af21' AND block = '6194634'", constants.TusdContractAddress)).StructScan(&res)
Expect(err).ToNot(HaveOccurred())
Expect(res.Balance).To(Equal("0"))
Expect(res.TokenName).To(Equal("TrueUSD"))
err = db.QueryRowx(fmt.Sprintf("SELECT * FROM c%s.balanceof_method WHERE who_ = '0xfE9e8709d3215310075d67E3ed32A380CCf451C8' AND block = '6194634'", constants.TusdContractAddress)).StructScan(&res)
Expect(err).To(HaveOccurred())
})
It("Fails if initialization has not been done", func() {
t := transformer.NewTransformer("", blockChain, db)
t.SetEvents(constants.TusdContractAddress, []string{"Transfer"})
t.SetMethods(constants.TusdContractAddress, nil)
err = t.Execute()
Expect(err).To(HaveOccurred())
})
})
})

49
pkg/omni/types/entities.go
View File

@ -26,16 +26,14 @@ import (
type Event struct {
Name string
Anonymous bool
Fields []*Field
Logs map[int64]Log // Map of VulcanizeIdLog to parsed event log
Fields []Field
}
type Method struct {
Name string
Const bool
Inputs []*Field
Outputs []*Field
Results []*Result
Args []Field
Return []Field
}
type Field struct {
@ -43,15 +41,18 @@ type Field struct {
PgType string // Holds type used when committing data held in this field to postgres
}
// Struct to hold results from method call with given inputs across different blocks
// Struct to hold instance of result from method call with given inputs and block
type Result struct {
Method
Inputs []interface{} // Will only use addresses
Outputs map[int64]interface{}
Output interface{}
PgType string // Holds output pg type
Block int64
}
// Struct to hold event log data data
// Struct to hold instance of an event log data
type Log struct {
Event
Id int64 // VulcanizeIdLog
Values map[string]string // Map of event input names to their values
Block int64
@ -59,10 +60,10 @@ type Log struct {
}
// Unpack abi.Event into our custom Event struct
func NewEvent(e abi.Event) *Event {
fields := make([]*Field, len(e.Inputs))
func NewEvent(e abi.Event) Event {
fields := make([]Field, len(e.Inputs))
for i, input := range e.Inputs {
fields[i] = &Field{}
fields[i] = Field{}
fields[i].Name = input.Name
fields[i].Type = input.Type
fields[i].Indexed = input.Indexed
@ -87,19 +88,18 @@ func NewEvent(e abi.Event) *Event {
}
}
return &Event{
return Event{
Name: e.Name,
Anonymous: e.Anonymous,
Fields: fields,
Logs: map[int64]Log{},
}
}
// Unpack abi.Method into our custom Method struct
func NewMethod(m abi.Method) *Method {
inputs := make([]*Field, len(m.Inputs))
func NewMethod(m abi.Method) Method {
inputs := make([]Field, len(m.Inputs))
for i, input := range m.Inputs {
inputs[i] = &Field{}
inputs[i] = Field{}
inputs[i].Name = input.Name
inputs[i].Type = input.Type
inputs[i].Indexed = input.Indexed
@ -123,9 +123,9 @@ func NewMethod(m abi.Method) *Method {
}
}
outputs := make([]*Field, len(m.Outputs))
outputs := make([]Field, len(m.Outputs))
for i, output := range m.Outputs {
outputs[i] = &Field{}
outputs[i] = Field{}
outputs[i].Name = output.Name
outputs[i].Type = output.Type
outputs[i].Indexed = output.Indexed
@ -149,12 +149,11 @@ func NewMethod(m abi.Method) *Method {
}
}
return &Method{
return Method{
Name: m.Name,
Const: m.Const,
Inputs: inputs,
Outputs: outputs,
Results: make([]*Result, 0),
Args: inputs,
Return: outputs,
}
}
@ -169,10 +168,10 @@ func (e Event) Sig() string {
}
func (m Method) Sig() string {
types := make([]string, len(m.Inputs))
types := make([]string, len(m.Args))
i := 0
for _, input := range m.Inputs {
types[i] = input.Type.String()
for _, arg := range m.Args {
types[i] = arg.Type.String()
i++
}