org.infinispan.transaction.xa.recovery.RecoveryAwareDldGlobalTransaction Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of infinispan-embedded
Infinispan Embedded All-in-One module
There is a newer version: 9.1.7.Final
package org.infinispan.transaction.xa.recovery;

import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Collections;
import java.util.Set;

import javax.transaction.xa.Xid;

import org.infinispan.commons.util.Util;
import org.infinispan.marshall.core.Ids;
import org.infinispan.remoting.transport.Address;
import org.infinispan.transaction.xa.DldGlobalTransaction;
import org.infinispan.transaction.xa.GlobalTransaction;
import org.infinispan.transaction.xa.TransactionFactory;

/**
 * DldGlobalTransaction that also holds xid information, required for recovery.
 * The purpose of this class is to avoid the serialization of Xid objects over the wire in the case recovery is not
 * enabled.
 *
 * @author [email protected]
 * @since 5.0
 */
public class RecoveryAwareDldGlobalTransaction extends DldGlobalTransaction implements RecoverableTransactionIdentifier {

   public RecoveryAwareDldGlobalTransaction() {
   }

   public RecoveryAwareDldGlobalTransaction(Address addr, boolean remote) {
      super(addr, remote);
   }

   private volatile Xid xid;

   private volatile long internalId;

   @Override
   public Xid getXid() {
      return xid;
   }

   @Override
   public void setXid(Xid xid) {
      this.xid = xid;
   }

   @Override
   public long getInternalId() {
      return internalId;
   }

   @Override
   public void setInternalId(long internalId) {
      this.internalId = internalId;
   }

   public static class Externalizer extends GlobalTransaction.AbstractGlobalTxExternalizer {
      @Override
      public void writeObject(ObjectOutput output, RecoveryAwareDldGlobalTransaction globalTransaction) throws IOException {
         super.writeObject(output, globalTransaction);
         output.writeLong(globalTransaction.getCoinToss());
         if (globalTransaction.locksAtOrigin.isEmpty()) {
            output.writeObject(null);
         } else {
            output.writeObject(globalTransaction.locksAtOrigin);
         }

         output.writeObject(globalTransaction.xid);
         output.writeLong(globalTransaction.internalId);
      }

      @Override
      protected RecoveryAwareDldGlobalTransaction createGlobalTransaction() {
         return (RecoveryAwareDldGlobalTransaction) TransactionFactory.TxFactoryEnum.DLD_RECOVERY_XA.newGlobalTransaction();
      }

      @Override
      @SuppressWarnings("unchecked")
      public RecoveryAwareDldGlobalTransaction readObject(ObjectInput input) throws IOException, ClassNotFoundException {
         RecoveryAwareDldGlobalTransaction globalTransaction = super.readObject(input);
         globalTransaction.setCoinToss(input.readLong());
         Object locksAtOriginObj = input.readObject();
         if (locksAtOriginObj == null) {
            globalTransaction.setLocksHeldAtOrigin(Collections.emptySet());
         } else {
            globalTransaction.setLocksHeldAtOrigin((Set