org.exoplatform.wallet.service

Interface BlockchainTransactionService

public interface BlockchainTransactionService

Method Summary

Modifier and Type	Method and Description
void	checkPendingTransactions() checks transactions marked as pending in DB and verify their status on blockchain.
void	checkPendingTransactionValidity(TransactionDetail transactionDetail) Checks that a transaction marked as pending in internal database is valid and available on blockchain.
void	checkTransactionStatusOnBlockchain(String transactionHash, boolean pendingTransactionFromDatabase) Checks transaction identified by its hash on blockchain to see if it's mined.
long	refreshBlockchainGasPrice() Refreshes gas price from blockchain and cache it
TransactionDetail	refreshTransactionFromBlockchain(String hash) This will refresh transaction from blockchain if the transaction is marked as pending or marked as error
void	scanNewerBlocks() Scans newly mined blocks in Blockchain to verify if there are transactions on configured token or wallet.
void	sendRawTransactions() Sends raw transactions to blockchain

Method Detail

scanNewerBlocks

void scanNewerBlocks()
              throws IOException

Scans newly mined blocks in Blockchain to verify if there are transactions on configured token or wallet. If found, save it in DB.

Throws:

IOException

sendRawTransactions

void sendRawTransactions()

Sends raw transactions to blockchain

checkTransactionStatusOnBlockchain

void checkTransactionStatusOnBlockchain(String transactionHash,
                                        boolean pendingTransactionFromDatabase)

Checks transaction identified by its hash on blockchain to see if it's mined. If mined, the information will be retrieved from mined transaction and saved on database (by replacing existing while the transaction was pendinginformation for more data integrity)

Parameters:

transactionHash -

pendingTransactionFromDatabase -

refreshTransactionFromBlockchain

TransactionDetail refreshTransactionFromBlockchain(String hash)

This will refresh transaction from blockchain if the transaction is marked as pending or marked as error

Parameters:

hash - hash of transaction to update

Returns:

refreshed TransactionDetail from blockchain

checkPendingTransactionValidity

void checkPendingTransactionValidity(TransactionDetail transactionDetail)

Checks that a transaction marked as pending in internal database is valid and available on blockchain. If not and if it has exceede WalletTransactionService.getPendingTransactionMaxDays(), then mark it as 'failed'. I will be remade as 'Success' if ContractTransactionVerifierJob detects a Contract Log

Parameters:

transactionDetail -

refreshBlockchainGasPrice

long refreshBlockchainGasPrice()
                        throws IOException

Refreshes gas price from blockchain and cache it

Returns:

last gas price retrieved from blockchain

Throws:

IOException - when an error occurs while requesting gas price from blockchain

checkPendingTransactions

void checkPendingTransactions()

checks transactions marked as pending in DB and verify their status on blockchain. If mined, the status gets updated on DB, else wait for next trigger time.