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Update BlockChain to record NodeInfo (#95)

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This commit is contained in:
Matt K
2017-12-07 13:32:16 -06:00
committed by GitHub
parent 18163f970e
commit 921bde1089
21 changed files with 276 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files
pkg/repositories/in_memory_test.go
+2 -1
View File
@@ -1,6 +1,7 @@
package repositories_test
import (
"github.com/8thlight/vulcanizedb/pkg/core"
"github.com/8thlight/vulcanizedb/pkg/repositories"
"github.com/8thlight/vulcanizedb/pkg/repositories/testing"
_ "github.com/lib/pq"
@@ -9,7 +10,7 @@ import (
var _ = Describe("In memory repository", func() {
testing.AssertRepositoryBehavior(func() repositories.Repository {
testing.AssertRepositoryBehavior(func(core.Node) repositories.Repository {
return repositories.NewInMemory()
})
pkg/repositories/postgres.go
+40 -12
View File
@@ -14,21 +14,46 @@ import (
)
type Postgres struct {
Db *sqlx.DB
Db *sqlx.DB
node core.Node
nodeId int64
}
var (
ErrDBInsertFailed = errors.New("postgres: insert failed")
ErrDBConnectionFailed = errors.New("postgres: db connection failed")
ErrUnableToSetNode = errors.New("postgres: unable to set node")
)
func NewPostgres(databaseConfig config.Database) (Postgres, error) {
func NewPostgres(databaseConfig config.Database, node core.Node) (Postgres, error) {
connectString := config.DbConnectionString(databaseConfig)
db, err := sqlx.Connect("postgres", connectString)
if err != nil {
return Postgres{}, ErrDBConnectionFailed
}
return Postgres{Db: db}, nil
pg := Postgres{Db: db, node: node}
err = pg.CreateNode(&node)
if err != nil {
return Postgres{}, ErrUnableToSetNode
}
return pg, nil
}
func (repository *Postgres) CreateNode(node *core.Node) error {
var nodeId int64
err := repository.Db.QueryRow(
`INSERT INTO nodes (genesis_block, network_id)
VALUES ($1, $2)
ON CONFLICT (genesis_block, network_id)
DO UPDATE
SET genesis_block = $1, network_id = $2
RETURNING id`,
node.GenesisBlock, node.NetworkId).Scan(&nodeId)
if err != nil {
return ErrUnableToSetNode
}
repository.nodeId = nodeId
return nil
}
func (repository Postgres) CreateContract(contract core.Contract) error {
@@ -53,7 +78,8 @@ func (repository Postgres) CreateContract(contract core.Contract) error {
func (repository Postgres) ContractExists(contractHash string) bool {
var exists bool
repository.Db.QueryRow(
`SELECT exists(SELECT 1 FROM watched_contracts WHERE contract_hash=$1) FROM watched_contracts`, contractHash).Scan(&exists)
`SELECT exists(SELECT 1 FROM watched_contracts WHERE contract_hash=$1)
FROM watched_contracts`, contractHash).Scan(&exists)
return exists
}
@@ -92,7 +118,9 @@ func (repository Postgres) MissingBlockNumbers(startingBlockNumber int64, highes
func (repository Postgres) FindBlockByNumber(blockNumber int64) *core.Block {
blockRows, _ := repository.Db.Query(
`SELECT id, block_number, block_gaslimit, block_gasused, block_time, block_difficulty, block_hash, block_nonce, block_parenthash, block_size, uncle_hash FROM blocks`)
`SELECT id, block_number, block_gaslimit, block_gasused, block_time, block_difficulty, block_hash, block_nonce, block_parenthash, block_size, uncle_hash
FROM blocks
WHERE node_id = $1`, repository.nodeId)
var savedBlocks []core.Block
for blockRows.Next() {
savedBlock := repository.loadBlock(blockRows)
@@ -116,10 +144,10 @@ func (repository Postgres) CreateBlock(block core.Block) error {
var blockId int64
err := tx.QueryRow(
`INSERT INTO blocks
(block_number, block_gaslimit, block_gasused, block_time, block_difficulty, block_hash, block_nonce, block_parenthash, block_size, uncle_hash)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)
RETURNING id `,
block.Number, block.GasLimit, block.GasUsed, block.Time, block.Difficulty, block.Hash, block.Nonce, block.ParentHash, block.Size, block.UncleHash).
(node_id, block_number, block_gaslimit, block_gasused, block_time, block_difficulty, block_hash, block_nonce, block_parenthash, block_size, uncle_hash)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)
RETURNING id `,
repository.nodeId, block.Number, block.GasLimit, block.GasUsed, block.Time, block.Difficulty, block.Hash, block.Nonce, block.ParentHash, block.Size, block.UncleHash).
Scan(&blockId)
if err != nil {
tx.Rollback()
@@ -138,8 +166,8 @@ func (repository Postgres) createTransactions(tx *sql.Tx, blockId int64, transac
for _, transaction := range transactions {
_, err := tx.Exec(
`INSERT INTO transactions
(block_id, tx_hash, tx_nonce, tx_to, tx_from, tx_gaslimit, tx_gasprice, tx_value)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8)`,
(block_id, tx_hash, tx_nonce, tx_to, tx_from, tx_gaslimit, tx_gasprice, tx_value)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8)`,
blockId, transaction.Hash, transaction.Nonce, transaction.To, transaction.From, transaction.GasLimit, transaction.GasPrice, transaction.Value)
if err != nil {
return err
@@ -204,7 +232,7 @@ func (repository Postgres) loadTransactions(transactionRows *sql.Rows) []core.Tr
}
func (repository Postgres) addTransactions(contract core.Contract) core.Contract {
transactionRows, _ := repository.Db.Query(`SELECT tx_hash, tx_nonce, tx_to, tx_from, tx_gaslimit, tx_gasprice, tx_value FROM transactions WHERE tx_to = $1 ORDER BY block_id desc`, contract.Hash)
transactionRows, _ := repository.Db.Query(`SELECT tx_hash, tx_nonce, tx_to, tx_from, tx_gaslimit, tx_gasprice, tx_value FROM transactions WHERE tx_to = $1 ORDER BY block_id DESC`, contract.Hash)
transactions := repository.loadTransactions(transactionRows)
savedContract := core.Contract{Hash: contract.Hash, Transactions: transactions, Abi: contract.Abi}
return savedContract
pkg/repositories/postgres_test.go
+16 -5
View File
@@ -24,9 +24,9 @@ var _ = Describe("Postgres repository", func() {
Expect(db).ShouldNot(BeNil())
})
testing.AssertRepositoryBehavior(func() repositories.Repository {
testing.AssertRepositoryBehavior(func(node core.Node) repositories.Repository {
cfg, _ := config.NewConfig("private")
repository, _ := repositories.NewPostgres(cfg.Database)
repository, _ := repositories.NewPostgres(cfg.Database, node)
testing.ClearData(repository)
return repository
})
@@ -40,7 +40,8 @@ var _ = Describe("Postgres repository", func() {
Transactions: []core.Transaction{},
}
cfg, _ := config.NewConfig("private")
repository, _ := repositories.NewPostgres(cfg.Database)
node := core.Node{GenesisBlock: "GENESIS", NetworkId: 1}
repository, _ := repositories.NewPostgres(cfg.Database, node)
err := repository.CreateBlock(badBlock)
savedBlock := repository.FindBlockByNumber(123)
@@ -51,10 +52,19 @@ var _ = Describe("Postgres repository", func() {
It("throws error when can't connect to the database", func() {
invalidDatabase := config.Database{}
_, err := repositories.NewPostgres(invalidDatabase)
node := core.Node{GenesisBlock: "GENESIS", NetworkId: 1}
_, err := repositories.NewPostgres(invalidDatabase, node)
Expect(err).To(Equal(repositories.ErrDBConnectionFailed))
})
It("throws error when can't create node", func() {
cfg, _ := config.NewConfig("private")
badHash := fmt.Sprintf("x %s", strings.Repeat("1", 100))
node := core.Node{GenesisBlock: badHash, NetworkId: 1}
_, err := repositories.NewPostgres(cfg.Database, node)
Expect(err).To(Equal(repositories.ErrUnableToSetNode))
})
It("does not commit block or transactions if transaction is invalid", func() {
//badHash violates db To field length
badHash := fmt.Sprintf("x %s", strings.Repeat("1", 100))
@@ -64,7 +74,8 @@ var _ = Describe("Postgres repository", func() {
Transactions: []core.Transaction{badTransaction},
}
cfg, _ := config.NewConfig("private")
repository, _ := repositories.NewPostgres(cfg.Database)
node := core.Node{GenesisBlock: "GENESIS", NetworkId: 1}
repository, _ := repositories.NewPostgres(cfg.Database, node)
err := repository.CreateBlock(block)
savedBlock := repository.FindBlockByNumber(123)
pkg/repositories/testing/helpers.go
+18 -2
View File
@@ -13,11 +13,12 @@ func ClearData(postgres repositories.Postgres) {
postgres.Db.MustExec("DELETE FROM blocks")
}
func AssertRepositoryBehavior(buildRepository func() repositories.Repository) {
func AssertRepositoryBehavior(buildRepository func(node core.Node) repositories.Repository) {
var repository repositories.Repository
BeforeEach(func() {
repository = buildRepository()
node := core.Node{GenesisBlock: "GENESIS", NetworkId: 1}
repository = buildRepository(node)
})
Describe("Saving blocks", func() {
@@ -34,6 +35,21 @@ func AssertRepositoryBehavior(buildRepository func() repositories.Repository) {
Expect(repository.BlockCount()).To(Equal(1))
})
It("associates blocks to a node", func() {
block := core.Block{
Number: 123,
}
repository.CreateBlock(block)
nodeTwo := core.Node{
GenesisBlock: "0x456",
NetworkId: 1,
}
repositoryTwo := buildRepository(nodeTwo)
foundBlock := repositoryTwo.FindBlockByNumber(123)
Expect(foundBlock).To(BeNil())
})
It("saves the attributes of the block", func() {
blockNumber := int64(123)
gasLimit := int64(1000000)