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issue #133 - refactoring + stub for delegated harvesting
network currency and network harvesting mosaics sorted out a bit
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| /* | ||
| * Copyright 2019 ProximaX Limited. All rights reserved. | ||
| * Use of this source code is governed by the Apache 2.0 | ||
| * license that can be found in the LICENSE file. | ||
| */ | ||
| package io.proximax.sdk.utils; | ||
|
|
||
| import java.math.BigDecimal; | ||
| import java.math.BigInteger; | ||
| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.Stream; | ||
|
|
||
| import io.proximax.sdk.BlockchainApi; | ||
| import io.proximax.sdk.BlockchainRepository; | ||
| import io.proximax.sdk.ListenerRepository; | ||
| import io.proximax.sdk.TransactionRepository; | ||
| import io.proximax.sdk.model.account.Account; | ||
| import io.proximax.sdk.model.account.PublicAccount; | ||
| import io.proximax.sdk.model.blockchain.NetworkType; | ||
| import io.proximax.sdk.model.mosaic.NetworkHarvestMosaic; | ||
| import io.proximax.sdk.model.transaction.AccountLinkTransaction; | ||
| import io.proximax.sdk.model.transaction.AggregateTransaction; | ||
| import io.proximax.sdk.model.transaction.LockFundsTransaction; | ||
| import io.proximax.sdk.model.transaction.Message; | ||
| import io.proximax.sdk.model.transaction.ModifyMultisigAccountTransaction; | ||
| import io.proximax.sdk.model.transaction.TransferTransaction; | ||
|
|
||
| /** | ||
| * TODO add proper description | ||
| */ | ||
| public class AccountHelper extends BaseHelper { | ||
|
|
||
| /** | ||
| * </p> | ||
| * create new helper instance | ||
| * </p> | ||
| * <p> | ||
| * note this might require connection to the network if network type is not known to the provided api | ||
| * </p> | ||
| * | ||
| * @param api | ||
| */ | ||
| public AccountHelper(BlockchainApi api) { | ||
| super(api); | ||
| } | ||
|
|
||
| /** | ||
| * get infinite source of new, random accounts | ||
| * | ||
| * @return stream of random accounts | ||
| */ | ||
| public Stream<Account> accountRandom() { | ||
| final NetworkType network = api.getNetworkType(); | ||
| return Stream.generate(() -> Account.generateNewAccount(network)); | ||
| } | ||
|
|
||
| /** | ||
| * generate specified number of account instances | ||
| * | ||
| * @param count the count of items in the returned list of accounts | ||
| * @return list of accounts | ||
| */ | ||
| public List<Account> accountRandom(int count) { | ||
| // generate specified number of random accounts | ||
| return accountRandom().limit(count).collect(Collectors.toList()); | ||
| } | ||
|
|
||
| /** | ||
| * convert account to multisig account | ||
| * | ||
| * @param account | ||
| * @param cosigners | ||
| * @param minApprovals | ||
| * @param minRemovals | ||
| * @param optinBlocks | ||
| * @param confirmationTimeoutSeconds | ||
| */ | ||
| public void accountToMultisig(Account account, List<PublicAccount> cosigners, int minApprovals, int minRemovals, | ||
| int optinBlocks, int confirmationTimeoutSeconds) { | ||
| // prepare transaction repo | ||
| TransactionRepository transactions = api.createTransactionRepository(); | ||
| // prepare listener | ||
| ListenerRepository listener = createListener(); | ||
| // first prepare the actual transaction to change account to multisig account | ||
| ModifyMultisigAccountTransaction multisigChangeTrans = transact.multisigModification() | ||
| .changeToMultisig(cosigners, minApprovals, minRemovals).build(); | ||
| // aggregate bonded transaction is required for cosigner opt-in so create that | ||
| AggregateTransaction aggregateTrans = transact.aggregateBonded() | ||
| .innerTransactions(multisigChangeTrans.toAggregate(account.getPublicAccount())).build(); | ||
| // aggregate bonded transaction requires lock funds | ||
| LockFundsTransaction lockTrans = transact.lockFunds() | ||
| .forAggregate(BigInteger.valueOf(optinBlocks), api.sign(aggregateTrans, account)).build(); | ||
| // announce lock funds and wait for confirmation | ||
| transactionConfirmed(transactions, listener, lockTrans, account, confirmationTimeoutSeconds); | ||
| // !!! wait a bit for server to get into consistent state !!! | ||
| sleepForAWhile(); | ||
| // now announce the aggregate transaction | ||
| transactionBondedAdded(transactions, listener, aggregateTrans, account, confirmationTimeoutSeconds); | ||
| } | ||
|
|
||
| /** | ||
| * activate delegated harvesting for an account | ||
| * | ||
| * @param account the account that will get delegated harvesting activated | ||
| * @param nodePublicKey node public key (use {@link BlockchainRepository#getNodeInfo()} or /node/info) | ||
| * @param confirmationTimeoutSeconds transaction timeout in seconds | ||
| * @return the remote account which is used for delegated harvesting | ||
| * @deprecated not supported yet | ||
| */ | ||
| @Deprecated | ||
| public Account activateDelegatedHarvesting(Account account, String nodePublicKey, int confirmationTimeoutSeconds) { | ||
| // prepare transaction repo | ||
| TransactionRepository transactions = api.createTransactionRepository(); | ||
| // prepare listener | ||
| ListenerRepository listener = createListener(); | ||
| // prepare new account that will be sent to the node | ||
| Account remoteAccount = Account.generateNewAccount(api.getNetworkType()); | ||
| // link accounts | ||
| AccountLinkTransaction link = transact.accountLink().link(remoteAccount.getPublicAccount()).build(); | ||
| // send 500 harvest currency to node public key | ||
| PublicAccount node = PublicAccount.createFromPublicKey(nodePublicKey, api.getNetworkType()); | ||
| // TODO figure out the message!!! | ||
| Message message = null; | ||
| TransferTransaction transfer = transact.transfer() | ||
| .mosaics(NetworkHarvestMosaic.createRelative(BigDecimal.valueOf(500))).to(node.getAddress()) | ||
| .message(message).build(); | ||
| // wrap both transactions to aggregate complete transaction | ||
| AggregateTransaction transaction = transact.aggregateComplete() | ||
| .innerTransactions(link.toAggregate(account.getPublicAccount()), | ||
| transfer.toAggregate(account.getPublicAccount())) | ||
| .build(); | ||
| // wait for confirmation | ||
| transactionConfirmed(transactions, listener, transaction, account, confirmationTimeoutSeconds); | ||
| // upon successful execution return the remote account | ||
| return remoteAccount; | ||
| } | ||
| } |
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