org.infinispan.commands.remote.recovery.TxCompletionNotificationCommand Maven / Gradle / Ivy

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package org.infinispan.commands.remote.recovery;

import org.infinispan.commands.TopologyAffectedCommand;
import org.infinispan.context.InvocationContext;
import org.infinispan.statetransfer.StateTransferManager;
import org.infinispan.transaction.impl.RemoteTransaction;
import org.infinispan.transaction.impl.TransactionTable;
import org.infinispan.transaction.xa.GlobalTransaction;
import org.infinispan.transaction.xa.recovery.RecoveryManager;
import org.infinispan.util.concurrent.locks.LockManager;
import org.infinispan.util.logging.Log;
import org.infinispan.util.logging.LogFactory;

import javax.transaction.xa.Xid;

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

/**
 * Command for removing recovery related information from the cluster.
 *
 * @author [email protected]
 * @since 5.0
 */
public class TxCompletionNotificationCommand  extends RecoveryCommand implements TopologyAffectedCommand {

   private static Log log = LogFactory.getLog(TxCompletionNotificationCommand.class);

   public static final int COMMAND_ID = 22;

   private Xid xid;
   private long internalId;
   private GlobalTransaction gtx;
   private TransactionTable txTable;
   private LockManager lockManager;
   private StateTransferManager stateTransferManager;
   private int topologyId = -1;

   private TxCompletionNotificationCommand() {
      super(null); // For command id uniqueness test
   }

   public TxCompletionNotificationCommand(Xid xid, GlobalTransaction gtx, String cacheName) {
      super(cacheName);
      this.xid = xid;
      this.gtx = gtx;
   }

   public void init(TransactionTable tt, LockManager lockManager, RecoveryManager rm, StateTransferManager stm) {
      super.init(rm);
      this.txTable = tt;
      this.lockManager = lockManager;
      this.stateTransferManager = stm;
   }


   public TxCompletionNotificationCommand(long internalId, String cacheName) {
      super(cacheName);
      this.internalId = internalId;
   }

   public TxCompletionNotificationCommand(String cacheName) {
      super(cacheName);
   }

   @Override
   public int getTopologyId() {
      return topologyId;
   }

   @Override
   public void setTopologyId(int topologyId) {
      this.topologyId = topologyId;
   }

   @Override
   public boolean isReturnValueExpected() {
      return false;
   }

   @Override
   public Object perform(InvocationContext ctx) throws Throwable {
      log.tracef("Processing completed transaction %s", gtx);
      RemoteTransaction remoteTx = null;
      if (recoveryManager != null) { //recovery in use
         if (xid != null) {
            remoteTx = (RemoteTransaction) recoveryManager.removeRecoveryInformation(xid);
         } else {
            remoteTx = (RemoteTransaction) recoveryManager.removeRecoveryInformation(internalId);
         }
      }
      if (remoteTx == null && gtx != null) {
         remoteTx = txTable.removeRemoteTransaction(gtx);
      }
      boolean successful = remoteTx != null && !remoteTx.isMarkedForRollback();
      if (gtx != null) {
         txTable.markTransactionCompleted(gtx, successful);
      } else if (remoteTx != null) {
         txTable.markTransactionCompleted(remoteTx.getGlobalTransaction(), successful);
      }
      if (remoteTx == null) return null;
      forwardCommandRemotely(remoteTx);

      lockManager.unlockAll(remoteTx.getLockedKeys(), remoteTx.getGlobalTransaction());
      return null;
   }

   public GlobalTransaction getGlobalTransaction() {
      return gtx;
   }

   /**
    * This only happens during state transfer.
    */
   private void forwardCommandRemotely(RemoteTransaction remoteTx) {
      Set