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TransactionBroadcast: use stream to simplify collecting sentFutures

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Sean Gilligan 2022-07-30 22:54:20 -07:00 • committed by Andreas Schildbach
parent 419dba9845
commit 2bd3a8bcde
1 changed files with 5 additions and 7 deletions
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12
core/src/main/java/org/bitcoinj/core/TransactionBroadcast.java
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@ -18,6 +18,7 @@ package org.bitcoinj.core;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.util.concurrent.Uninterruptibles;
import org.bitcoinj.base.utils.StreamUtils;
import org.bitcoinj.core.internal.InternalUtils;
import org.bitcoinj.core.listeners.PreMessageReceivedEventListener;
import org.bitcoinj.utils.ListenableCompletableFuture;
@ -184,14 +185,11 @@ public class TransactionBroadcast {
numWaitingFor = (int) Math.ceil((peers.size() - numToBroadcastTo) / 2.0);
log.info("broadcastTransaction: We have {} peers, adding {} to the memory pool", peers.size(), tx.getTxId());
log.info("Sending to {} peers, will wait for {}, sending to: {}", numToBroadcastTo, numWaitingFor, InternalUtils.joiner(",").join(peers));
CompletableFuture[] sentFutures = new CompletableFuture[broadcastPeers.size()];
int i = 0;
for (final Peer peer : broadcastPeers) {
sentFutures[i] = broadcastOne(peer);
i++;
}
List<CompletableFuture<Void>> sentFutures = broadcastPeers.stream()
.map(this::broadcastOne)
.collect(StreamUtils.toUnmodifiableList());
// Complete successfully if ALL peer.sendMessage complete successfully, fail otherwise
return CompletableFuture.allOf(sentFutures);
return CompletableFuture.allOf(sentFutures.toArray(new CompletableFuture[0]));
}, Threading.SAME_THREAD)
.whenComplete((v, err) -> {
// Complete `sentFuture` (even though it is currently unused)