AssumedCompleteTransaction.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. 
 * See the copyright.txt in the distribution for a full listing 
 * of individual contributors.
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License, v. 2.1.
 * This program is distributed in the hope that it will be useful, but WITHOUT A
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License,
 * v.2.1 along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 * 
 * (C) 2005-2006,
 * @author JBoss Inc.
 */
/*
 * Copyright (C) 2000, 2001,
 *
 * Arjuna Solutions Limited,
 * Newcastle upon Tyne,
 * Tyne and Wear,
 * UK.
 *
 * $Id: AssumedCompleteTransaction.java 2342 2006-03-30 13:06:17Z  $
 */


package com.arjuna.ats.internal.jts.recovery.transactions;

import java.util.Date;

import org.omg.CosTransactions.Status;

import com.arjuna.ats.arjuna.common.Uid;
import com.arjuna.ats.arjuna.state.InputObjectState;
import com.arjuna.ats.arjuna.state.OutputObjectState;
import com.arjuna.ats.jts.logging.jtsLogger;

/**
 * Transaction relic of a committed transaction that did not get committed
 * responses from all resources/subordinates.
 *
 * Recovery will not be attempted unless a replay completion is received, in
 * which case it is reactivated.
 * <P>
 * Several of the methods of OTS_Transaction could be simplified for an 
 * AssumedCompleteTransaction (e.g. the status must be committed), but they
 * are kept the same to simplify maintenance
 * <P>
 * @author Peter Furniss (peter.furniss@arjuna.com)
 * @version $Id: AssumedCompleteTransaction.java 2342 2006-03-30 13:06:17Z  $ 
 *
 */

public class AssumedCompleteTransaction extends RecoveredTransaction
{
    public AssumedCompleteTransaction ( Uid actionUid )
    {
	super(actionUid,ourTypeName);

	if (jtsLogger.logger.isDebugEnabled()) {
        jtsLogger.logger.debug("AssumedCompleteTransaction "+get_uid()+" created");
    }
    }

    /**
     *  the original process must be deceased if we are assumed complete
     */
    public Status getOriginalStatus()
    {
        return Status.StatusNoTransaction;
    }


    public String type ()
    {
        return AssumedCompleteTransaction.typeName();
    }
    /**
     * typeName differs from original to force the ActionStore to 
     * keep AssumedCompleteTransactions separate
     */

    public static String typeName ()
    {
        return ourTypeName;
    }

    public String toString ()
    {
        return "AssumedCompleteTransaction < "+get_uid()+" >";
    }

    /**
     * This T is already assumed complete, so return false
     */
    public boolean assumeComplete()
    {
        return false;
    }

    public Date getLastActiveTime()
    {
        return _lastActiveTime;
    }

    public boolean restore_state (InputObjectState objectState, int ot)
    {
        // do the other stuff
        boolean result = super.restore_state(objectState,ot);

        if (result) {
            try {
                long oldtime = objectState.unpackLong();
                _lastActiveTime = new Date(oldtime);
            } catch (java.io.IOException ex) {
                // can assume the assumptionTime is missing - make it now
                _lastActiveTime = new Date();
            }
        }
        return result;
    }

    public boolean save_state (OutputObjectState os, int ot)
    {
        // do the other stuff
        boolean result = super.save_state(os,ot);

        if (result ) {
            // a re-write means we have just been active
            _lastActiveTime = new Date();
            try {
                os.packLong(_lastActiveTime.getTime());
            } catch (java.io.IOException ex) {
            }
        }
        return result;

    }

    private Date _lastActiveTime;

    private static String ourTypeName = "/StateManager/BasicAction/TwoPhaseCoordinator/ArjunaTransactionImple/AssumedCompleteTransaction";

}