Examples with RawTransaction com.neemre.btcdcli4j.core.domain.RawTransaction used on opensource projects

Example 1 with RawTransaction

use of com.neemre.btcdcli4j.core.domain.RawTransaction in project bisq-core by bisq-network.

the class RpcService method requestTx.

public Tx requestTx(String txId, int blockHeight) throws BsqBlockchainException {
    try {
        RawTransaction rawTransaction = requestRawTransaction(txId);
        // rawTransaction.getTime() is in seconds but we keep it in ms internally
        final long time = rawTransaction.getTime() * 1000;
        final List<TxInput> txInputs = rawTransaction.getVIn().stream().filter(rawInput -> rawInput != null && rawInput.getVOut() != null && rawInput.getTxId() != null).map(rawInput -> new TxInput(rawInput.getTxId(), rawInput.getVOut())).collect(Collectors.toList());
        final List<TxOutput> txOutputs = rawTransaction.getVOut().stream().filter(e -> e != null && e.getN() != null && e.getValue() != null && e.getScriptPubKey() != null).map(rawOutput -> {
            byte[] opReturnData = null;
            final com.neemre.btcdcli4j.core.domain.PubKeyScript scriptPubKey = rawOutput.getScriptPubKey();
            if (scriptPubKey.getType().equals(ScriptTypes.NULL_DATA)) {
                String[] chunks = scriptPubKey.getAsm().split(" ");
                // We get on testnet a lot of "OP_RETURN 0" data, so we filter those away
                if (chunks.length == 2 && chunks[0].equals("OP_RETURN") && !"0".equals(chunks[1])) {
                    try {
                        opReturnData = Utils.HEX.decode(chunks[1]);
                    } catch (Throwable t) {
                        // We get sometimes exceptions, seems BitcoinJ
                        // cannot handle all existing OP_RETURN data, but we ignore them
                        // anyway as our OP_RETURN data is valid in BitcoinJ
                        log.warn("Error at Utils.HEX.decode(chunks[1]): " + t.toString() + " / chunks[1]=" + chunks[1]);
                    }
                }
            }
            // We don't support raw MS which are the only case where scriptPubKey.getAddresses()>1
            String address = scriptPubKey.getAddresses() != null && scriptPubKey.getAddresses().size() == 1 ? scriptPubKey.getAddresses().get(0) : null;
            final PubKeyScript pubKeyScript = dumpBlockchainData ? new PubKeyScript(scriptPubKey) : null;
            return new TxOutput(rawOutput.getN(), rawOutput.getValue().movePointRight(8).longValue(), rawTransaction.getTxId(), pubKeyScript, address, opReturnData, blockHeight);
        }).collect(Collectors.toList());
        return new Tx(txId, blockHeight, rawTransaction.getBlockHash(), time, ImmutableList.copyOf(txInputs), ImmutableList.copyOf(txOutputs));
    } catch (BitcoindException | CommunicationException e) {
        log.error("error at requestTx with txId={}, blockHeight={}", txId, blockHeight);
        throw new BsqBlockchainException(e.getMessage(), e);
    }
}