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Refactor: Reduce number of invocations of Stream#collect()

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Change-Id: Idde16505cbe0a1e56e2b651678a0169df0d06bf7
This commit is contained in:
Sho SHIMIZU 2016-01-13 23:34:31 -08:00 committed by Gerrit Code Review
parent 4ce97ffbf9
commit 38a4798ea0
1 changed files with 8 additions and 9 deletions
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17
core/net/src/main/java/org/onosproject/net/intent/impl/IntentManager.java
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@ -54,6 +54,7 @@ import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static com.google.common.base.Preconditions.checkNotNull;
import static java.util.concurrent.Executors.newFixedThreadPool;
@ -339,26 +340,24 @@ public class IntentManager
}
}
private List<CompletableFuture<FinalIntentProcessPhase>> createIntentUpdates(Collection<IntentData> data) {
private Stream<CompletableFuture<FinalIntentProcessPhase>> createIntentUpdates(Collection<IntentData> data) {
return data.stream()
.map(IntentManager.this::submitIntentData)
.collect(Collectors.toList());
.map(IntentManager.this::submitIntentData);
}
private List<FinalIntentProcessPhase> waitForFutures(List<CompletableFuture<FinalIntentProcessPhase>> futures) {
return futures.stream()
private Stream<FinalIntentProcessPhase> waitForFutures(Stream<CompletableFuture<FinalIntentProcessPhase>> futures) {
return futures
.map(x -> x.exceptionally(e -> {
//FIXME
log.warn("Future failed: {}", e);
return null;
}))
.map(CompletableFuture::join)
.filter(Objects::nonNull)
.collect(Collectors.toList());
.filter(Objects::nonNull);
}
private void submitUpdates(List<FinalIntentProcessPhase> updates) {
store.batchWrite(updates.stream()
private void submitUpdates(Stream<FinalIntentProcessPhase> updates) {
store.batchWrite(updates
.map(FinalIntentProcessPhase::data)
.collect(Collectors.toList()));
}