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package com.sun.enterprise.jbi.serviceengine.handlers;
//import com.sun.enterprise.Switch;
import com.sun.enterprise.jbi.serviceengine.comm.MessageExchangeTransport;
import com.sun.enterprise.jbi.serviceengine.core.ServiceEngineRuntimeHelper;
import javax.jbi.messaging.MessageExchange;
import javax.jbi.messaging.ExchangeStatus;
import javax.jbi.messaging.InOnly;
import javax.transaction.SystemException;
import javax.transaction.TransactionManager;
import javax.transaction.Transaction;
import javax.transaction.InvalidTransactionException;
/**
* Transaction handling for JBI message exchanges is done in this class. It has
* a singleton instance.
*
* @author Vikas Awasthi
*/
public class JBITransactionHandler implements JBIHandler {
// @Inject
// JavaEETransactionManager tm;
public void handleInbound(MessageExchangeTransport meTransport) throws Exception {
MessageExchange me = meTransport.getMessageExchange();
if(!isTxEnabled(me))
return;
suspendTx(me);
}
public void handleOutbound(MessageExchangeTransport meTransport) throws Exception {
MessageExchange me = meTransport.getMessageExchange();
if(!isTxEnabled(me))
return;
resumeTx(me);
}
protected boolean isTxEnabled(MessageExchange me) {
return ((tx_enable==null || tx_enable.equalsIgnoreCase("true")));
}
private void suspendTx(MessageExchange me) throws SystemException {
//TransactionManager tm = getTM();
ServiceEngineRuntimeHelper runtimeHelper = ServiceEngineRuntimeHelper.getRuntime();
TransactionManager tm = runtimeHelper.getTransactionManager();
Transaction tx = tm.getTransaction();
if (tx != null) {
if(me.getStatus().equals(ExchangeStatus.ERROR))
tx.setRollbackOnly();
tx = tm.suspend();
me.setProperty(MessageExchange.JTA_TRANSACTION_PROPERTY_NAME, tx);
}
}
private void resumeTx(MessageExchange me) throws
SystemException,
InvalidTransactionException {
//TransactionManager tm = getTM();
ServiceEngineRuntimeHelper runtimeHelper = ServiceEngineRuntimeHelper.getRuntime();
TransactionManager tm = runtimeHelper.getTransactionManager();
Transaction tx = (Transaction)me.getProperty(MessageExchange.JTA_TRANSACTION_PROPERTY_NAME);
if(tx != null) {
if(me.getStatus().equals(ExchangeStatus.ERROR))
tx.setRollbackOnly();
tm.resume(tx);
}
}
private TransactionManager getTM() {
//return Switch.getSwitch().getTransactionManager();
return null;
}
private String tx_enable = System.getProperty("com.sun.enterprise.jbi.tx.enable");
}