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/*
* $Id$
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2012 OpenLink Software
*
* This project is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License, dated June 1991.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
package virtuoso.jdbc2;
import javax.transaction.xa.XAException;
class XATransaction
{
final static int ACTIVE = 1;
final static int IDLE = 2;
final static int PREPARED = 3;
final static int COMMITTED = 4;
final static int ROLLEDBACK = 5;
final static int ROLLBACKONLY = 6;
private VirtuosoXid xid;
private int status;
XATransaction (VirtuosoXid xid, int status) {
if (VirtuosoFuture.rpc_log != null)
{
synchronized (VirtuosoFuture.rpc_log)
{
VirtuosoFuture.rpc_log.println ("new VirtuosoXATransaction (xid=" + xid.hashCode() + ", status=" + status + ") :" + hashCode());
VirtuosoFuture.rpc_log.flush();
}
}
this.xid = xid;
this.status = status;
}
VirtuosoXid getXid() {
return xid;
}
int getStatus() {
if (VirtuosoFuture.rpc_log != null)
{
synchronized (VirtuosoFuture.rpc_log)
{
VirtuosoFuture.rpc_log.println ("VirtuosoXATransaction.getStatus () ret=" + status + " :" + hashCode() + ")");
VirtuosoFuture.rpc_log.flush();
}
}
return status;
}
void setStatus(int status) {
this.status = status;
if (VirtuosoFuture.rpc_log != null)
{
synchronized (VirtuosoFuture.rpc_log)
{
VirtuosoFuture.rpc_log.println ("VirtuosoXATransaction.setStatus (status=" + status + ") :" + hashCode() + ")");
VirtuosoFuture.rpc_log.flush();
}
}
}
void changeStatus(int nstatus) throws XAException {
changeStatus(nstatus, false);
}
void changeStatus(int nstatus, boolean onePhase) throws XAException {
checkNewStatus(nstatus, onePhase);
status = nstatus;
if (VirtuosoFuture.rpc_log != null)
{
synchronized (VirtuosoFuture.rpc_log)
{
VirtuosoFuture.rpc_log.println ("VirtuosoXATransaction.changeStatus (nstatus=" + nstatus + ") :" + hashCode() + ")");
VirtuosoFuture.rpc_log.flush();
}
}
}
void checkNewStatus(int nstatus) throws XAException {
checkNewStatus(nstatus, false);
}
void checkNewStatus(int nstatus, boolean onePhase) throws XAException {
if (status == ACTIVE && nstatus != IDLE && nstatus != ACTIVE && nstatus != ROLLBACKONLY) {
throw createException(nstatus);
} else if (status == IDLE && (nstatus != PREPARED && nstatus != ROLLEDBACK && !(nstatus == COMMITTED && onePhase))) {
throw createException(nstatus);
} else if (status == PREPARED && (nstatus != COMMITTED && nstatus != ROLLEDBACK)) {
throw createException(nstatus);
} else if (status == ROLLBACKONLY && nstatus != ROLLEDBACK && nstatus != PREPARED) {
throw createException(nstatus);
} else if (status == COMMITTED || status == ROLLEDBACK) {
throw createException(nstatus);
}
}
private String getName(int _status) {
switch(_status) {
case ACTIVE: return "ACTIVE";
case IDLE: return "IDLE";
case PREPARED: return "PREPARED";
case COMMITTED: return "COMMITED";
case ROLLEDBACK: return "ROLLEDBACK";
case ROLLBACKONLY: return "ROLLBACKONLY";
default: return "UNKNOWN";
}
}
private XAException createException(int nstatus) {
XAException ex = new XAException("Can't change transaction state from "+getName(status)+" to "+getName(nstatus));
ex.errorCode = XAException.XAER_RMFAIL;
return ex;
}
}
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