Examples with RawTransactionManager org.web3j.tx.RawTransactionManager used on opensource projects

Example 1 with RawTransactionManager

use of org.web3j.tx.RawTransactionManager in project jbpm-work-items by kiegroup.

the class SendEtherWorkitemHandler method executeWorkItem.

public void executeWorkItem(WorkItem workItem, WorkItemManager workItemManager) {
    try {
        String serviceURL = (String) workItem.getParameter("ServiceURL");
        String amount = (String) workItem.getParameter("Amount");
        String toAddress = (String) workItem.getParameter("ToAddress");
        if (StringUtils.isNotEmpty(serviceURL) && StringUtils.isNotEmpty(toAddress) && StringUtils.isNotEmpty(amount) && NumberUtils.isDigits(amount)) {
            Map<String, Object> results = new HashMap<String, Object>();
            if (web3j == null) {
                web3j = Web3j.build(new HttpService(serviceURL));
            }
            auth = new EthereumAuth(walletPassword, walletPath, classLoader);
            Credentials credentials = auth.getCredentials();
            TransactionManager transactionManager = new RawTransactionManager(web3j, credentials);
            if (transfer == null) {
                transfer = new Transfer(web3j, transactionManager);
            }
            int amountToSend = 0;
            if (amount != null) {
                amountToSend = Integer.parseInt(amount);
            }
            TransactionReceipt transactionReceipt = EthereumUtils.sendFundsToContract(credentials, web3j, amountToSend, toAddress, transfer);
            results.put(RESULTS, transactionReceipt);
            workItemManager.completeWorkItem(workItem.getId(), results);
        } else {
            logger.error("Missing service url or valid ether amount or toAddress.");
            throw new IllegalArgumentException("Missing service url or valid ether amount or toAddress.");
        }
    } catch (Exception e) {
        logger.error("Error executing workitem: " + e.getMessage());
        handleException(e);
    }
}