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package com.sun.ejb.containers;

import java.util.ArrayList;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Vector;
import java.util.logging.Level;
import java.util.logging.Logger;

import jakarta.ejb.EJBException;
import jakarta.transaction.Synchronization;
import jakarta.transaction.SystemException;
import jakarta.transaction.Transaction;

import org.glassfish.ejb.config.EjbContainerAvailability;
import org.glassfish.ejb.deployment.descriptor.EjbDescriptor;

import com.sun.logging.LogDomains;


/**
 * This class intercepts Synchronization notifications from
 * the TransactionManager and forwards them to the appropriate container.
 * There is one ContainerSynchronization instance per tx.
 * All bean instances (of all types) participating in the tx must be
 * added by the container to the ContainerSynchronization, so that
 * the beans can be called during before/afterCompletion.
 *
 * This class also provides special methods for PersistenceManager Sync and
 * Timer objects which must be called AFTER the containers during 
 * before/afterCompletion.
 *
 */
final class ContainerSynchronization implements Synchronization
{

    private static final Logger _logger =
        LogDomains.getLogger(ContainerSynchronization.class, LogDomains.EJB_LOGGER);

    private ArrayList beans = new ArrayList();
    private Vector pmSyncs = new Vector();

    private Hashtable timerSyncs = new Hashtable();

    private Transaction tx; // the tx with which this Sync was registered
    private EjbContainerUtil ejbContainerUtilImpl;

    SFSBTxCheckpointCoordinator sfsbTxCoordinator;

    // Note: this must be called only after a Tx is begun.
    ContainerSynchronization(Transaction tx, 
			     EjbContainerUtil ejbContainerUtilImpl)
    {
        this.tx = tx;
        this.ejbContainerUtilImpl = ejbContainerUtilImpl;
    }
    
    Vector  getBeanList(){
        Vector vec = new Vector();
        for (Iterator iter = beans.iterator(); iter.hasNext(); ) {
            vec.add(iter.next());
        }
        return vec;
    }
    
    void addBean(EJBContextImpl bean)
    {
        beans.add(bean);
    }
    
    void removeBean(EJBContextImpl bean)
    {
        beans.remove(bean);
    }
    
    void addPMSynchronization(Synchronization sync)
    {
        pmSyncs.add(sync);
    }

    // Set synchronization object for a particular timer.  
    void addTimerSynchronization(TimerPrimaryKey timerId, Synchronization sync)
    {
        timerSyncs.put(timerId, sync);
    }

    // Might be null if no timer synch object for this timerId in this tx
    Synchronization getTimerSynchronization(TimerPrimaryKey timerId) {
        return (Synchronization) timerSyncs.get(timerId);
    }

    void removeTimerSynchronization(TimerPrimaryKey timerId) {
        timerSyncs.remove(timerId);
    }

    public void beforeCompletion()
    {
        // first call beforeCompletion for each bean instance
        for ( int i=0; i