Ejemplo n.º 1
0
  /**
   * Broadcast outgoing transactions.
   *
   * <p>This method should only be called from the wallet manager
   *
   * @return false if synchronization failed due to failed blockchain connection
   */
  public synchronized boolean broadcastOutgoingTransactions() {
    checkNotArchived();
    List<Sha256Hash> broadcastedIds = new LinkedList<Sha256Hash>();
    Map<Sha256Hash, byte[]> transactions = _backing.getOutgoingTransactions();

    for (byte[] rawTransaction : transactions.values()) {
      TransactionEx tex = TransactionEx.fromUnconfirmedTransaction(rawTransaction);

      BroadcastResult result = broadcastTransaction(TransactionEx.toTransaction(tex));
      if (result == BroadcastResult.SUCCESS) {
        broadcastedIds.add(tex.txid);
        _backing.removeOutgoingTransaction(tex.txid);
      } else {
        if (result == BroadcastResult.REJECTED) {
          // invalid tx
          _backing.deleteTransaction(tex.txid);
          _backing.removeOutgoingTransaction(tex.txid);
        } else {
          // No connection --> retry next sync
        }
      }
    }
    if (!broadcastedIds.isEmpty()) {
      onTransactionsBroadcasted(broadcastedIds);
    }
    return true;
  }
Ejemplo n.º 2
0
  @Override
  public synchronized boolean cancelQueuedTransaction(Sha256Hash transaction) {
    Map<Sha256Hash, byte[]> outgoingTransactions = _backing.getOutgoingTransactions();

    if (!outgoingTransactions.containsKey(transaction)) {
      return false;
    }

    Transaction tx;
    try {
      tx = Transaction.fromBytes(outgoingTransactions.get(transaction));
    } catch (TransactionParsingException e) {
      return false;
    }

    _backing.beginTransaction();
    try {

      // See if any of the outputs are stored locally and remove them
      for (int i = 0; i < tx.outputs.length; i++) {
        TransactionOutput output = tx.outputs[i];
        OutPoint outPoint = new OutPoint(tx.getHash(), i);
        TransactionOutputEx utxo = _backing.getUnspentOutput(outPoint);
        if (utxo != null) {
          _backing.deleteUnspentOutput(outPoint);
        }
      }

      // Remove a queued transaction from our outgoing buffer
      _backing.removeOutgoingTransaction(transaction);

      // remove it from the backing
      _backing.deleteTransaction(transaction);
      _backing.setTransactionSuccessful();
    } finally {
      _backing.endTransaction();
    }

    // calc the new balance to remove the outgoing amount
    // the total balance will still be wrong, as we already deleted some UTXOs to build the queued
    // transaction
    // these will get restored after the next sync
    updateLocalBalance();

    // markTransactionAsSpent(transaction);
    return true;
  }