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KeyTimeCoinSelector: use a stream in select()

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Note that this removes the warning about exceeding the limit.
This commit is contained in:
Sean Gilligan 2023-09-05 19:20:08 -07:00 • committed by Andreas Schildbach
parent 339e0d0450
commit e8491bbd88
1 changed files with 7 additions and 13 deletions
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20
core/src/main/java/org/bitcoinj/wallet/KeyTimeCoinSelector.java
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@ -19,6 +19,7 @@ package org.bitcoinj.wallet;
import org.bitcoinj.base.Coin;
import org.bitcoinj.base.ScriptType;
import org.bitcoinj.base.internal.StreamUtils;
import org.bitcoinj.crypto.ECKey;
import org.bitcoinj.core.Transaction;
import org.bitcoinj.core.TransactionConfidence;
@ -34,6 +35,7 @@ import java.util.LinkedList;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.stream.Collectors;
/**
* A coin selector that takes all coins assigned to keys created before the given timestamp.
@ -64,19 +66,11 @@ public class KeyTimeCoinSelector implements CoinSelector {
@Override
public CoinSelection select(Coin target, List<TransactionOutput> candidates) {
try {
LinkedList<TransactionOutput> gathered = new LinkedList<>();
for (TransactionOutput output : candidates) {
if (ignorePending && !isConfirmed(output))
continue;
if (!isKeyBeforeCutoff(output))
continue;
gathered.push(output);
if (gathered.size() >= MAX_SIMULTANEOUS_INPUTS) {
log.warn("Reached {} inputs, going further would yield a tx that is too large, stopping here.", gathered.size());
break;
}
}
return new CoinSelection(gathered);
return candidates.stream()
.filter(output -> !ignorePending || isConfirmed(output))
.filter(this::isKeyBeforeCutoff)
.limit(MAX_SIMULTANEOUS_INPUTS) // TODO: log a warning if limit exceeded?
.collect(Collectors.collectingAndThen(StreamUtils.toUnmodifiableList(), CoinSelection::new));
} catch (ScriptException e) {
throw new RuntimeException(e); // We should never have problems understanding scripts in our wallet.
}