@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;
}
/**
* 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;
}
/**
* Determine whether a transaction was sent from one of our own addresses.
*
* <p>This is a costly operation as we first have to lookup the transaction and then it's funding
* outputs
*
* @param txid the ID of the transaction to investigate
* @return true if one of the funding outputs were sent from one of our own addresses
*/
protected boolean isFromMe(Sha256Hash txid) {
Transaction t = TransactionEx.toTransaction(_backing.getTransaction(txid));
if (t == null) {
return false;
}
return isFromMe(t);
}
@Override
public TransactionDetails getTransactionDetails(Sha256Hash txid) {
// Note that this method is not synchronized, and we might fetch the transaction history while
// synchronizing
// accounts. That should be ok as we write to the DB in a sane order.
TransactionEx tex = _backing.getTransaction(txid);
Transaction tx = TransactionEx.toTransaction(tex);
if (tx == null) {
throw new RuntimeException();
}
List<TransactionDetails.Item> inputs = new ArrayList<TransactionDetails.Item>(tx.inputs.length);
if (tx.isCoinbase()) {
// We have a coinbase transaction. Create one input with the sum of the outputs as its value,
// and make the address the null address
long value = 0;
for (TransactionOutput out : tx.outputs) {
value += out.value;
}
inputs.add(new TransactionDetails.Item(Address.getNullAddress(_network), value, true));
} else {
// Populate the inputs
for (TransactionInput input : tx.inputs) {
Sha256Hash parentHash = input.outPoint.hash;
// Get the parent transaction
TransactionOutputEx parentOutput = _backing.getParentTransactionOutput(input.outPoint);
if (parentOutput == null) {
// We never heard about the parent, skip
continue;
}
// Determine the parent address
Address parentAddress;
ScriptOutput parentScript = ScriptOutput.fromScriptBytes(parentOutput.script);
if (parentScript == null) {
// Null address means we couldn't figure out the address, strange script
parentAddress = Address.getNullAddress(_network);
} else {
parentAddress = parentScript.getAddress(_network);
}
inputs.add(new TransactionDetails.Item(parentAddress, parentOutput.value, false));
}
}
// Populate the outputs
TransactionDetails.Item[] outputs = new TransactionDetails.Item[tx.outputs.length];
for (int i = 0; i < tx.outputs.length; i++) {
Address address = tx.outputs[i].script.getAddress(_network);
outputs[i] = new TransactionDetails.Item(address, tx.outputs[i].value, false);
}
return new TransactionDetails(
txid, tex.height, tex.time, inputs.toArray(new TransactionDetails.Item[] {}), outputs);
}
