Examples with VersionedRepeatableReadEntry org.infinispan.container.entries.VersionedRepeatableReadEntry used on opensource projects

Example 1 with VersionedRepeatableReadEntry

use of org.infinispan.container.entries.VersionedRepeatableReadEntry in project infinispan by infinispan.

the class WriteSkewHelper method performWriteSkewCheckAndReturnNewVersions.

public static CompletionStage<Map<Object, IncrementableEntryVersion>> performWriteSkewCheckAndReturnNewVersions(VersionedPrepareCommand prepareCommand, EntryLoader<?, ?> entryLoader, VersionGenerator versionGenerator, TxInvocationContext<?> context, KeySpecificLogic ksl, KeyPartitioner keyPartitioner) {
    if (prepareCommand.getVersionsSeen() == null) {
        // Do not perform the write skew check if this prepare command is being replayed for state transfer
        return CompletableFutures.completedEmptyMap();
    }
    Map<Object, IncrementableEntryVersion> uv = new HashMap<>();
    AggregateCompletionStage<Map<Object, IncrementableEntryVersion>> aggregateCompletionStage = CompletionStages.aggregateCompletionStage(uv);
    for (WriteCommand c : prepareCommand.getModifications()) {
        for (Object k : c.getAffectedKeys()) {
            int segment = SegmentSpecificCommand.extractSegment(c, k, keyPartitioner);
            if (ksl.performCheckOnSegment(segment)) {
                CacheEntry<?, ?> cacheEntry = context.lookupEntry(k);
                if (!(cacheEntry instanceof VersionedRepeatableReadEntry)) {
                    continue;
                }
                VersionedRepeatableReadEntry entry = (VersionedRepeatableReadEntry) cacheEntry;
                CompletionStage<Boolean> skewStage = entry.performWriteSkewCheck(entryLoader, segment, context, prepareCommand.getVersionsSeen().get(k), versionGenerator, c.hasAnyFlag(FlagBitSets.ROLLING_UPGRADE));
                aggregateCompletionStage.dependsOn(skewStage.thenAccept(passSkew -> {
                    if (!passSkew) {
                        throw new WriteSkewException("Write skew detected on key " + entry.getKey() + " for transaction " + context.getCacheTransaction(), entry.getKey());
                    }
                    IncrementableEntryVersion newVersion = incrementVersion(entry, versionGenerator);
                    // Have to synchronize as we could have returns on different threads due to notifications/loaders etc
                    synchronized (uv) {
                        uv.put(entry.getKey(), newVersion);
                    }
                }));
            }
        }
    }
    return aggregateCompletionStage.freeze();
}

Example 2 with VersionedRepeatableReadEntry

use of org.infinispan.container.entries.VersionedRepeatableReadEntry in project infinispan by infinispan.

the class EntryFactoryImpl method createWrappedEntry.

protected MVCCEntry<?, ?> createWrappedEntry(Object key, CacheEntry<?, ?> cacheEntry) {
    Object value = null;
    Metadata metadata = null;
    PrivateMetadata internalMetadata = null;
    if (cacheEntry != null) {
        synchronized (cacheEntry) {
            value = cacheEntry.getValue();
            metadata = cacheEntry.getMetadata();
            internalMetadata = cacheEntry.getInternalMetadata();
        }
    }
    if (log.isTraceEnabled())
        log.tracef("Creating new entry for key %s", toStr(key));
    MVCCEntry<?, ?> mvccEntry;
    if (useRepeatableRead) {
        if (useVersioning) {
            if (internalMetadata == null) {
                internalMetadata = nonExistingPrivateMetadata;
            }
            mvccEntry = new VersionedRepeatableReadEntry(key, value, metadata);
        } else {
            mvccEntry = new RepeatableReadEntry(key, value, metadata);
        }
    } else {
        mvccEntry = new ReadCommittedEntry(key, value, metadata);
    }
    mvccEntry.setInternalMetadata(internalMetadata);
    if (cacheEntry != null) {
        mvccEntry.setCreated(cacheEntry.getCreated());
        mvccEntry.setLastUsed(cacheEntry.getLastUsed());
    }
    return mvccEntry;
}