Package org.infinispan.container.versioning

Examples of org.infinispan.container.versioning.EntryVersionsMap

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      }

      @Override
      public EntryVersionsMap createNewVersionsAndCheckForWriteSkews(VersionGenerator versionGenerator, TxInvocationContext context, VersionedPrepareCommand prepareCommand) {
         // Perform a write skew check on mapped entries.
         EntryVersionsMap uv = performWriteSkewCheckAndReturnNewVersions(prepareCommand, dataContainer,
                                                                         versionGenerator, context,
                                                                         keySpecificLogic);

         CacheTransaction cacheTransaction = context.getCacheTransaction();
         EntryVersionsMap uvOld = cacheTransaction.getUpdatedEntryVersions();
         if (uvOld != null && !uvOld.isEmpty()) {
            uvOld.putAll(uv);
            uv = uvOld;
         }
         cacheTransaction.setUpdatedEntryVersions(uv);
         return (uv.isEmpty()) ? null : uv;
      }
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      wrapEntriesForPrepare(ctx, command);

      Object retVal = invokeNextInterceptor(ctx, command);

      EntryVersionsMap versionsMap = cdl.createNewVersionsAndCheckForWriteSkews(versionGenerator, ctx,
                                                                                (VersionedPrepareCommand) command);

      if (command.isOnePhaseCommit()) {
         commitContextEntries(ctx, null);
      } else {
         if (trace)
            log.tracef("Transaction %s will be committed in the 2nd phase", ctx.getGlobalTransaction().globalId());
      }

      return versionsMap == null ? retVal : new ArrayList<Object>(versionsMap.keySet());
   }
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   }

   @Override
   public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command) throws Throwable {
      wrapEntriesForPrepare(ctx, command);
      EntryVersionsMap newVersionData= null;
      if (ctx.isOriginLocal() && !((LocalTransaction)ctx.getCacheTransaction()).isFromStateTransfer()) newVersionData = cdl.createNewVersionsAndCheckForWriteSkews(versionGenerator, ctx, (VersionedPrepareCommand) command);

      Object retval = invokeNextInterceptor(ctx, command);

      if (!ctx.isOriginLocal()) newVersionData = cdl.createNewVersionsAndCheckForWriteSkews(versionGenerator, ctx, (VersionedPrepareCommand) command);
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      wrapEntriesForPrepare(ctx, command);

      Object retVal = invokeNextInterceptor(ctx, command);

      EntryVersionsMap versionsMap = cdl.createNewVersionsAndCheckForWriteSkews(versionGenerator, ctx,
                                                                                (VersionedPrepareCommand) command);

      if (command.isOnePhaseCommit()) {
         commitContextEntries(ctx, null, null);
      } else {
         if (trace)
            log.tracef("Transaction %s will be committed in the 2nd phase", ctx.getGlobalTransaction().globalId());
      }

      return versionsMap == null ? retVal : new ArrayList<Object>(versionsMap.keySet());
   }
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                                                                                        WriteSkewHelper.KeySpecificLogic keySpecificLogic) {
         if (context.isOriginLocal()) {
            throw new IllegalStateException("This must not be reached");
         }

         EntryVersionsMap updatedVersionMap = new EntryVersionsMap();

         if (!((TotalOrderPrepareCommand) prepareCommand).skipWriteSkewCheck()) {
            updatedVersionMap = performTotalOrderWriteSkewCheckAndReturnNewVersions(prepareCommand, dataContainer,
                                                                                    context, keySpecificLogic);
         }

         for (WriteCommand c : prepareCommand.getModifications()) {
            for (Object k : c.getAffectedKeys()) {
               if (keySpecificLogic.performCheckOnKey(k)) {
                  if (!updatedVersionMap.containsKey(k)) {
                     updatedVersionMap.put(k, null);
                  }
               }
            }
         }
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         if (prepareCommand.getModifications().length == 0) {
            // For situations when there's a local-only put in the prepare,
            // simply add an empty entry version map. This works because when
            // a local-only put is executed, this is not added to the prepare
            // modification list.
            context.getCacheTransaction().setUpdatedEntryVersions(new EntryVersionsMap());
         } else {
            ConsistentHash readConsistentHash = cacheTopology.getReadConsistentHash();
            List<Address> members = readConsistentHash.getMembers();
            if (members.get(0).equals(rpcManager.getAddress())) {
               // Perform a write skew check on each entry.
               EntryVersionsMap uv = performWriteSkewCheckAndReturnNewVersions(
                     prepareCommand, dataContainer, versionGenerator, context,
                     keySpecificLogic);
               context.getCacheTransaction().setUpdatedEntryVersions(uv);
               return uv;
            }
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      public EntryVersionsMap createNewVersionsAndCheckForWriteSkews(VersionGenerator versionGenerator, TxInvocationContext context, VersionedPrepareCommand prepareCommand) {
         if (configuration.transaction().transactionProtocol().isTotalOrder()) {
            return totalOrderCreateNewVersionsAndCheckForWriteSkews(context, prepareCommand, keySpecificLogic);
         }
         // Perform a write skew check on mapped entries.
         EntryVersionsMap uv = performWriteSkewCheckAndReturnNewVersions(prepareCommand, dataContainer,
                                                                         versionGenerator, context,
                                                                         keySpecificLogic);

         CacheTransaction cacheTransaction = context.getCacheTransaction();
         EntryVersionsMap uvOld = cacheTransaction.getUpdatedEntryVersions();
         if (uvOld != null && !uvOld.isEmpty()) {
            uvOld.putAll(uv);
            uv = uvOld;
         }
         cacheTransaction.setUpdatedEntryVersions(uv);
         return (uv.isEmpty()) ? null : uv;
      }
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   }

   @Override
   public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command) throws Throwable {
      wrapEntriesForPrepare(ctx, command);
      EntryVersionsMap newVersionData= null;
      if (ctx.isOriginLocal() && !((LocalTransaction)ctx.getCacheTransaction()).isFromStateTransfer()) newVersionData = cdl.createNewVersionsAndCheckForWriteSkews(versionGenerator, ctx, (VersionedPrepareCommand) command);

      Object retval = invokeNextInterceptor(ctx, command);

      if (!ctx.isOriginLocal()) newVersionData = cdl.createNewVersionsAndCheckForWriteSkews(versionGenerator, ctx, (VersionedPrepareCommand) command);
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      CacheEntry entry = ctx.lookupEntry(key);
      if (entry instanceof InternalCacheEntry) {
         return (InternalCacheEntry) entry;
      } else {
         if (ctx.isInTxScope()) {
            EntryVersionsMap updatedVersions =
                  ((TxInvocationContext) ctx).getCacheTransaction().getUpdatedEntryVersions();
            if (updatedVersions != null) {
               EntryVersion version = updatedVersions.get(entry.getKey());
               if (version != null) {
                  Metadata metadata = entry.getMetadata();
                  if (metadata == null) {
                     // If no metadata passed, assumed embedded metadata
                     metadata = new EmbeddedMetadata.Builder()
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* @since 5.1
*/
public class WriteSkewHelper {
   public static void setVersionsSeenOnPrepareCommand(VersionedPrepareCommand command, TxInvocationContext context) {
      // Build a map of keys to versions as they were seen by the transaction originator's transaction context
      EntryVersionsMap vs = new EntryVersionsMap();
      for (WriteCommand wc : command.getModifications()) {
         for (Object k : wc.getAffectedKeys()) {
            CacheEntry entry = context.lookupEntry(k);
            // the entry might be null if an attempt to lock the key was done and the actual value for this key is missing from the data container
            if (entry != null) {
               vs.put(k, (IncrementableEntryVersion) entry.getMetadata().version());
            }
         }
      }

      // Make sure this version map is attached to the prepare command so that lock owners can perform write skew checks
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Related Classes of org.infinispan.container.versioning.EntryVersionsMap

  • org.infinispan.interceptors.CacheStoreInterceptor
  • org.infinispan.interceptors.CacheWriterInterceptor
  • org.infinispan.interceptors.locking.ClusteringDependentLogic$AbstractClusteringDependentLogic
  • org.infinispan.interceptors.locking.ClusteringDependentLogic$AllNodesLogic
  • org.infinispan.interceptors.locking.ClusteringDependentLogic$DistributionLogic
  • org.infinispan.interceptors.locking.ClusteringDependentLogic$InvalidationLogic
  • org.infinispan.interceptors.totalorder.TotalOrderVersionedEntryWrappingInterceptor
  • org.infinispan.interceptors.VersionedDistributionInterceptor
  • org.infinispan.interceptors.VersionedEntryWrappingInterceptor
  • org.infinispan.interceptors.VersionedReplicationInterceptor
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