@Override
public synchronized boolean deleteTransaction(Sha256Hash transactionId) {
TransactionEx tex = _backing.getTransaction(transactionId);
if (tex == null) return false;
Transaction tx = TransactionEx.toTransaction(tex);
_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 it from the backing
_backing.deleteTransaction(transactionId);
_backing.setTransactionSuccessful();
} finally {
_backing.endTransaction();
}
updateLocalBalance(); // will still need a new sync besides re-calculating
return true;
}
@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;
}
private void markTransactionAsSpent(Transaction transaction) {
_backing.beginTransaction();
try {
// Remove inputs from unspent, marking them as spent
for (TransactionInput input : transaction.inputs) {
TransactionOutputEx parentOutput = _backing.getUnspentOutput(input.outPoint);
if (parentOutput != null) {
_backing.deleteUnspentOutput(input.outPoint);
_backing.putParentTransactionOutput(parentOutput);
}
}
// See if any of the outputs are for ourselves and store them as
// unspent
for (int i = 0; i < transaction.outputs.length; i++) {
TransactionOutput output = transaction.outputs[i];
if (isMine(output.script)) {
_backing.putUnspentOutput(
new TransactionOutputEx(
new OutPoint(transaction.getHash(), i),
-1,
output.value,
output.script.getScriptBytes(),
false));
}
}
// Store transaction locally, so we have it in our history and don't
// need to fetch it in a minute
_backing.putTransaction(TransactionEx.fromUnconfirmedTransaction(transaction));
_backing.setTransactionSuccessful();
} finally {
_backing.endTransaction();
}
// Tell account that we have a new transaction
onNewTransaction(TransactionEx.fromUnconfirmedTransaction(transaction), transaction);
// Calculate local balance cache. It has changed because we have done
// some spending
updateLocalBalance();
persistContextIfNecessary();
}