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improve performance on large wallets with high address reuse

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This commit is contained in:
Craig Raw
2023-06-15 12:19:09 +02:00
parent 15500b6535
commit 3242f00812
2 changed files with 10 additions and 9 deletions
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src/main/java/com/sparrowwallet/sparrow/net/ElectrumServer.java
+4 -3
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@@ -692,7 +692,9 @@ public class ElectrumServer {
//First check all provided txes that pay to this node
Script nodeScript = node.getOutputScript();
Set<BlockTransactionHash> history = nodeTransactionMap.get(node);
Map<Sha256Hash, BlockTransactionHash> txHashHistory = new HashMap<>();
for(BlockTransactionHash reference : history) {
txHashHistory.put(reference.getHash(), reference);
BlockTransaction blockTransaction = wallet.getTransactions().get(reference.getHash());
if(blockTransaction == null) {
throw new IllegalStateException("Did not retrieve transaction for hash " + reference.getHashAsString());
@@ -731,14 +733,13 @@ public class ElectrumServer {
throw new IllegalStateException("Could not retrieve transaction for hash " + reference.getHashAsString());
}
Optional<BlockTransactionHash> optionalTxHash = history.stream().filter(txHash -> txHash.getHash().equals(previousHash)).findFirst();
if(optionalTxHash.isEmpty()) {
BlockTransactionHash spentTxHash = txHashHistory.get(previousHash);
if(spentTxHash == null) {
//No previous transaction history found, cannot check if spends from wallet
//This is fine so long as all referenced transactions have been returned, in which case this refers to a transaction that does not affect this wallet node
continue;
}
BlockTransactionHash spentTxHash = optionalTxHash.get();
TransactionOutput spentOutput = previousTransaction.getTransaction().getOutputs().get((int)input.getOutpoint().getIndex());
if(spentOutput.getScript().equals(nodeScript)) {
BlockTransactionHashIndex spendingTXI = new BlockTransactionHashIndex(reference.getHash(), reference.getHeight(), blockTransaction.getDate(), reference.getFee(), inputIndex, spentOutput.getValue());