Examples with Blockchain org.xel.Blockchain used on opensource projects

Example 1 with Blockchain

use of org.xel.Blockchain in project elastic-core-maven by OrdinaryDude.

the class GetNextBlockGeneratorsTemp method processRequest.

@Override
protected JSONStreamAware processRequest(HttpServletRequest req) throws NxtException {
    JSONObject response = new JSONObject();
    int limit = Math.max(1, ParameterParser.getInt(req, "limit", 1, Integer.MAX_VALUE, false));
    Blockchain blockchain = Nxt.getBlockchain();
    blockchain.readLock();
    try {
        Block lastBlock = blockchain.getLastBlock();
        response.put("timestamp", lastBlock.getTimestamp());
        response.put("height", lastBlock.getHeight());
        response.put("lastBlock", Long.toUnsignedString(lastBlock.getId()));
        List<Generator.ActiveGenerator> activeGenerators = Generator.getNextGenerators();
        response.put("activeCount", activeGenerators.size());
        JSONArray generators = new JSONArray();
        for (Generator.ActiveGenerator generator : activeGenerators) {
            if (generator.getHitTime() > Integer.MAX_VALUE) {
                break;
            }
            JSONObject resp = new JSONObject();
            JSONData.putAccount(resp, "account", generator.getAccountId());
            resp.put("effectiveBalanceNXT", generator.getEffectiveBalance());
            resp.put("hitTime", generator.getHitTime());
            resp.put("deadline", (int) generator.getHitTime() - lastBlock.getTimestamp());
            generators.add(resp);
            if (generators.size() == limit) {
                break;
            }
        }
        response.put("generators", generators);
    } finally {
        blockchain.readUnlock();
    }
    return response;
}

Example 2 with Blockchain

use of org.xel.Blockchain in project elastic-core-maven by OrdinaryDude.

the class GetTaggedDataExtendTransactions method processRequest.

@Override
protected JSONStreamAware processRequest(HttpServletRequest req) throws NxtException {
    long taggedDataId = ParameterParser.getUnsignedLong(req, "transaction", true);
    List<Long> extendTransactions = TaggedData.getExtendTransactionIds(taggedDataId);
    JSONObject response = new JSONObject();
    JSONArray jsonArray = new JSONArray();
    Blockchain blockchain = Nxt.getBlockchain();
    Filter<Appendix> filter = (appendix) -> !(appendix instanceof Attachment.TaggedDataExtend);
    extendTransactions.forEach(transactionId -> jsonArray.add(JSONData.transaction(blockchain.getTransaction(transactionId), filter)));
    response.put("extendTransactions", jsonArray);
    return response;
}

Example 3 with Blockchain

use of org.xel.Blockchain in project elastic-core-maven by OrdinaryDude.

the class GetTransactions method processRequest.

@Override
JSONStreamAware processRequest(JSONObject request, Peer peer) {
    if (!Constants.INCLUDE_EXPIRED_PRUNABLE) {
        return PeerServlet.UNSUPPORTED_REQUEST_TYPE;
    }
    JSONObject response = new JSONObject();
    JSONArray transactionArray = new JSONArray();
    JSONArray transactionIds = (JSONArray) request.get("transactionIds");
    Blockchain blockchain = Nxt.getBlockchain();
    // 
    if (transactionIds != null) {
        transactionIds.forEach(transactionId -> {
            long id = Long.parseUnsignedLong((String) transactionId);
            Transaction transaction = blockchain.getTransaction(id);
            if (transaction != null) {
                transaction.getAppendages(true);
                JSONObject transactionJSON = transaction.getJSONObject();
                transactionArray.add(transactionJSON);
            }
        });
    }
    response.put("transactions", transactionArray);
    return response;
}