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package com.sun.enterprise.distributedtx;
import java.rmi.RemoteException;
import java.io.Serializable;
import javax.transaction.*;
import java.util.Properties;
import com.sun.ejb.*;
import com.sun.enterprise.*;
import com.sun.enterprise.log.Log;
import com.sun.enterprise.util.i18n.StringManager;
import com.sun.enterprise.iiop.*;
import com.sun.enterprise.util.InvocationManagerImpl;
import java.util.logging.*;
import com.sun.logging.*;
/**
* This class implements javax.transaction.UserTransaction .
* Its methods are called from TX_BEAN_MANAGED EJB code.
* Most of its methods just delegate to the TransactionManager
* after doing some EJB Container-related steps.
*
* Note: EJB1.1 Section 6.4.1 requires that the Container must be able to
* preserve an object reference of the UserTransaction interface across
* passivation, so we make this Serializable.
*
* @author Tony Ng
*/
public class UserTransactionImpl implements UserTransaction, Serializable
{
static Logger _logger=LogDomains.getLogger(LogDomains.JTA_LOGGER);
// Sting Manager for Localization
private static StringManager sm = StringManager.getManager(UserTransactionImpl.class);
private static final boolean debug = false;
private transient J2EETransactionManager transactionManager;
private transient InvocationManager invocationManager;
private transient boolean initialized;
// for non-J2EE clients usage
private transient UserTransaction userTx;
// private int transactionTimeout;
// true if ejb access checks should be performed. Default is
// true. All instances of UserTransaction exposed to applications
// will have checking turned on.
private boolean checkEjbAccess;
/**
* Default constructor.
*/
public UserTransactionImpl()
{
this(true);
}
/**
* Alternate version of constructor that allows control over whether
* ejb access checks are performed.
*/
public UserTransactionImpl(boolean doEjbAccessChecks)
{
init();
checkEjbAccess = doEjbAccessChecks;
}
/**
* Could be called after passivation and reactivation
*/
private void init()
{
initialized = true;
Switch theSwitch = Switch.getSwitch();
transactionManager = theSwitch.getTransactionManager();
invocationManager = theSwitch.getInvocationManager();
if (invocationManager == null)
invocationManager = new InvocationManagerImpl();
if (transactionManager == null) {
PEORBConfigurator.initTransactionService(null, new Properties());
transactionManager =
J2EETransactionManagerImpl.createTransactionManager();
theSwitch.setTransactionManager(transactionManager);
// non J2EE client, set up UserTransaction from JTS
// userTx = new com.sun.jts.jta.UserTransactionImpl();
}
}
private void checkUserTransactionMethodAccess(ComponentInvocation inv)
throws IllegalStateException, SystemException
{
if ( (inv.getInvocationType() == ComponentInvocation.EJB_INVOCATION)
&& checkEjbAccess ) {
Container ejbContainer = (Container) inv.container;
if( !ejbContainer.userTransactionMethodsAllowed(inv) ) {
throw new IllegalStateException(sm.getString("enterprise_distributedtx.operation_not_allowed"));
}
}
}
public void begin() throws NotSupportedException, SystemException
{
if (!initialized) init();
if (userTx != null) {
userTx.begin();
return;
}
ComponentInvocation inv = invocationManager.getCurrentInvocation();
if (inv != null) {
checkUserTransactionMethodAccess(inv);
}
transactionManager.begin();
/**
if ( transactionTimeout > 0 )
transactionManager.begin(transactionTimeout);
else
transactionManager.begin();
**/
try {
if (inv != null) {
if ( inv.getInvocationType() == ComponentInvocation.EJB_INVOCATION )
((Container)inv.container).doAfterBegin(inv);
inv.setTransaction(transactionManager.getTransaction());
transactionManager.enlistComponentResources();
}
} catch ( RemoteException ex ) {
_logger.log(Level.SEVERE,"enterprise_distributedtx.excep_in_utx_begin", ex);
SystemException sysEx = new SystemException(ex.getMessage());
sysEx.initCause(ex);
throw sysEx;
}
}
public void commit() throws RollbackException,
HeuristicMixedException, HeuristicRollbackException, SecurityException,
IllegalStateException, SystemException
{
if (!initialized) init();
if (userTx != null) {
userTx.commit();
return;
}
ComponentInvocation inv = invocationManager.getCurrentInvocation();
if (inv != null) {
checkUserTransactionMethodAccess(inv);
}
try {
transactionManager.delistComponentResources(false); // TMSUCCESS
transactionManager.commit();
} catch ( RemoteException ex ) {
_logger.log(Level.SEVERE,"enterprise_distributedtx.excep_in_utx_commit", ex);
throw new SystemException();
} finally {
if (inv != null)
inv.setTransaction(null);
}
}
public void rollback() throws IllegalStateException, SecurityException,
SystemException
{
if (!initialized) init();
if (userTx != null) {
userTx.rollback();
return;
}
ComponentInvocation inv = invocationManager.getCurrentInvocation();
if (inv != null) {
checkUserTransactionMethodAccess(inv);
}
try {
transactionManager.delistComponentResources(false); // TMSUCCESS
transactionManager.rollback();
} catch ( RemoteException ex ) {
_logger.log(Level.SEVERE,"enterprise_distributedtx.excep_in_utx_rollback", ex);
throw new SystemException();
} finally {
if (inv != null)
inv.setTransaction(null);
}
}
public void setRollbackOnly() throws IllegalStateException, SystemException
{
if (!initialized) init();
if (userTx != null) {
userTx.setRollbackOnly();
return;
}
ComponentInvocation inv = invocationManager.getCurrentInvocation();
if (inv != null) {
checkUserTransactionMethodAccess(inv);
}
transactionManager.setRollbackOnly();
}
public int getStatus() throws SystemException
{
if (!initialized) init();
if (userTx != null) {
return userTx.getStatus();
}
ComponentInvocation inv = invocationManager.getCurrentInvocation();
if (inv != null) {
checkUserTransactionMethodAccess(inv);
}
return transactionManager.getStatus();
}
public void setTransactionTimeout(int seconds) throws SystemException
{
if (!initialized) init();
if (userTx != null) {
userTx.setTransactionTimeout(seconds);
return;
}
ComponentInvocation inv = invocationManager.getCurrentInvocation();
if (inv != null) {
checkUserTransactionMethodAccess(inv);
}
if (seconds < 0) seconds = 0;
// transactionTimeout = seconds;
transactionManager.setTransactionTimeout(seconds);
}
}
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