cerc-io/ipld-eth-server
17
0
Fork 1
Code Issues 10 Pull Requests 1 Actions Packages Projects Releases 37 Wiki Activity

refactoring event converter and repository so that event logs are

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
cmd/omniWatcher.go
View File

@ -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
View File

@ -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
View File

@ -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"]

168
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{
bc: blockChain,
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{
Inputs: nil,
Outputs: map[int64]interface{}{},
PgType: m.Outputs[0].PgType,
func (p *poller) pollNoArg(m types.Method) error {
result := types.Result{
Method: m,
Inputs: nil,
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{
Inputs: make([]interface{}, 1),
Outputs: map[int64]interface{}{},
PgType: m.Outputs[0].PgType,
}
result.Inputs[0] = common.HexToAddress(addr)
func (p *poller) pollSingleArg(m types.Method) error {
result := types.Result{
Method: m,
Inputs: make([]interface{}, 1),
PgType: m.Return[0].PgType,
}
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"))
})

116
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)
}
@ -44,93 +43,71 @@ 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)
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{}
_, err = d.CreateEventTable(contractAddr, event)
if err != nil {
return err
}
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 {
// Begin postgres string
pgStr := fmt.Sprintf("INSERT INTO c%s.%s ", strings.ToLower(con.Address), strings.ToLower(eventName))
pgStr = pgStr + "(vulcanize_log_id, token_name, block, tx"
func (d *eventDatastore) persistLog(event types.Log, contractAddr, contractName string) error {
// Begin postgres string
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)
// Pack the corresponding variables in a slice
var data []interface{}
data = append(data,
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 {
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)
}
// 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 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)
}
// Finish off the string and execute the command using the packed data
// For each input entry we created we add its postgres command variable to the string
pgStr = pgStr + ") VALUES ($1, $2, $3, $4"
for i := 0; i < counter; i++ {
pgStr = pgStr + fmt.Sprintf(", $%d", i+5)
}
pgStr = pgStr + ") ON CONFLICT (vulcanize_log_id) DO NOTHING"
// Finish off the string and execute the command using the packed data
// For each input entry we created we add its postgres command variable to the string
pgStr = pgStr + ") VALUES ($1, $2, $3, $4"
for i := 0; i < counter; i++ {
pgStr = pgStr + fmt.Sprintf(", $%d", i+5)
}
pgStr = pgStr + ") ON CONFLICT (vulcanize_log_id) DO NOTHING"
_, err := d.DB.Exec(pgStr, data...)
if err != nil {
return err
}
_, 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 *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())
})
})

118
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)
if err != nil {
return err
}
//TODO: Persist method data
_, err = d.CreateMethodTable(contractAddr, method)
if err != nil {
return err
}
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

61
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
converter.Converter // Converts watched event logs into custom log
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())
})
})
})

61
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
Name string
Const bool
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 {
Inputs []interface{} // Will only use addresses
Outputs map[int64]interface{}
PgType string // Holds output pg type
Method
Inputs []interface{} // Will only use addresses
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{
Name: m.Name,
Const: m.Const,
Inputs: inputs,
Outputs: outputs,
Results: make([]*Result, 0),
return Method{
Name: m.Name,
Const: m.Const,
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++
}