Examples with VersionGenerator org.infinispan.container.versioning.VersionGenerator used on opensource projects

Example 1 with VersionGenerator

use of org.infinispan.container.versioning.VersionGenerator 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 VersionGenerator

use of org.infinispan.container.versioning.VersionGenerator in project infinispan by infinispan.

the class MarshalledEntryUtil method createWithVersion.

public static <K, V> MarshallableEntry<K, V> createWithVersion(K key, V value, Cache cache) {
    ComponentRegistry registry = cache.getAdvancedCache().getComponentRegistry();
    MarshallableEntryFactory<K, V> entryFactory = registry.getComponent(MarshallableEntryFactory.class);
    VersionGenerator versionGenerator = registry.getVersionGenerator();
    PrivateMetadata metadata = new PrivateMetadata.Builder().entryVersion(versionGenerator.generateNew()).build();
    return entryFactory.create(key, value, null, metadata, -1, -1);
}

Example 3 with VersionGenerator

use of org.infinispan.container.versioning.VersionGenerator in project infinispan by infinispan.

the class PartialResponse method generateVersion.

private EntryVersion generateVersion(Cache<byte[], byte[]> cache) {
    ComponentRegistry registry = getCacheRegistry();
    VersionGenerator cacheVersionGenerator = registry.getComponent(VersionGenerator.class);
    if (cacheVersionGenerator == null) {
        NumericVersionGenerator newVersionGenerator = new NumericVersionGenerator();
        registry.registerComponent(newVersionGenerator, VersionGenerator.class);
        return newVersionGenerator.generateNew();
    } else {
        return cacheVersionGenerator.generateNew();
    }
}