Examples with Merit bisq.core.dao.governance.merit.Merit used on opensource projects

Example 1 with Merit

use of bisq.core.dao.governance.merit.Merit in project bisq-core by bisq-network.

the class MyBlindVoteListService method getMerits.

// blindVoteTxId is null if we use the method from the getCurrentlyAvailableMerit call.
public MeritList getMerits(@Nullable String blindVoteTxId) {
    // Create a lookup set for txIds of own comp. requests
    Set<String> myCompensationProposalTxIs = myProposalListService.getList().stream().filter(proposal -> proposal instanceof CompensationProposal).map(Proposal::getTxId).collect(Collectors.toSet());
    return new MeritList(bsqStateService.getIssuanceSet().stream().map(issuance -> {
        // We check if it is our proposal
        if (!myCompensationProposalTxIs.contains(issuance.getTxId()))
            return null;
        byte[] signatureAsBytes;
        if (blindVoteTxId != null) {
            String pubKey = issuance.getPubKey();
            if (pubKey == null) {
                // Maybe add exception
                log.error("We did not have a pubKey in our issuance object. " + "txId={}, issuance={}", issuance.getTxId(), issuance);
                return null;
            }
            DeterministicKey key = bsqWalletService.findKeyFromPubKey(Utilities.decodeFromHex(pubKey));
            if (key == null) {
                // Maybe add exception
                log.error("We did not find the key for our compensation request. txId={}", issuance.getTxId());
                return null;
            }
            // We sign the txId so we be sure that the signature could not be used by anyone else
            // In the verification the txId will be checked as well.
            // As we use BitcoinJ EC keys we extend our consensus dependency to BitcoinJ.
            // Alternative would be to use our own Sig Key but then we need to share the key separately.
            // The EC key is in the blockchain already. We prefer here to stick with EC key. If any change
            // in BitcoinJ would break our consensus we would need to fall back to the old BitcoinJ EC
            // implementation.
            ECKey.ECDSASignature signature = key.sign(Sha256Hash.wrap(blindVoteTxId));
            signatureAsBytes = signature.toCanonicalised().encodeToDER();
        } else {
            // In case we use it for requesting the currently available merit we don't apply a signature
            signatureAsBytes = new byte[0];
        }
        return new Merit(issuance, signatureAsBytes);
    }).filter(Objects::nonNull).sorted(Comparator.comparing(Merit::getIssuanceTxId)).collect(Collectors.toList()));
}