public boolean restore_state(InputObjectState os, int t) {
boolean res = false;
try {
_heuristic = os.unpackInt();
_committed = os.unpackBoolean();
_tranID = XidImple.unpack(os);
_theXAResource = null;
_recoveryObject = null;
if (os.unpackInt() == RecoverableXAConnection.OBJECT_RECOVERY) {
_productName = os.unpackString();
_productVersion = os.unpackString();
_jndiName = os.unpackString();
boolean haveXAResource = os.unpackBoolean();
if (haveXAResource) {
try {
// Read the classname of the serialized XAResource
String className = os.unpackString();
byte[] b = os.unpackBytes();
ByteArrayInputStream s = new ByteArrayInputStream(b);
ObjectInputStream o = new ObjectInputStream(s);
// Give the list of deserializers a chance to deserialize the record
boolean deserialized = false;
Iterator<SerializableXAResourceDeserializer> iterator =
getXAResourceDeserializers().iterator();
while (iterator.hasNext()) {
SerializableXAResourceDeserializer proxyXAResourceDeserializer = iterator.next();
if (proxyXAResourceDeserializer.canDeserialze(className)) {
_theXAResource = proxyXAResourceDeserializer.deserialze(o);
deserialized = true;
break;
}
}
// Give it a go ourselves
if (!deserialized) {
_theXAResource = (XAResource) o.readObject();
}
o.close();
if (jtaLogger.logger.isTraceEnabled()) {
jtaLogger.logger.trace("XAResourceRecord.restore_state - XAResource de-serialized");
}
} catch (Exception ex) {
// not serializable in the first place!
jtaLogger.i18NLogger.warn_resources_arjunacore_restorestate(ex);
return false;
}
} else {
/*
* Lookup new XAResource via XARecoveryModule if possible.
*/
_theXAResource = getNewXAResource();
if (_theXAResource == null) {
jtaLogger.i18NLogger.warn_resources_arjunacore_norecoveryxa(toString());
/*
* Don't prevent tx from activating because there may be
* other participants that can still recover. Plus, we will
* try to get a new XAResource later for this instance.
*/
res = true;
}
}
} else {
String creatorName = os.unpackString();
_recoveryObject =
ClassloadingUtility.loadAndInstantiateClass(
RecoverableXAConnection.class, creatorName, null);
if (_recoveryObject == null) {
throw new ClassNotFoundException();
}
_recoveryObject.unpackFrom(os);
_theXAResource = _recoveryObject.getResource();
if (jtaLogger.logger.isTraceEnabled()) {
jtaLogger.logger.trace(
"XAResourceRecord.restore_state - XAResource got from " + creatorName);
}
}
res = true;
} catch (Exception e) {
jtaLogger.i18NLogger.warn_resources_arjunacore_restorestateerror(
_theXAResource.toString(), XAHelper.xidToString(_tranID), e);
res = false;
}
if (res) res = super.restore_state(os, t);
return res;
}
public boolean save_state(OutputObjectState os, int t) {
boolean res = false;
try {
os.packInt(_heuristic);
os.packBoolean(_committed);
/*
* Since we don't know what type of Xid we are using, leave it up to
* XID to pack.
*/
XidImple.pack(os, _tranID);
/*
* If no recovery object set then rely upon object serialisation!
*/
if (_recoveryObject == null) {
os.packInt(RecoverableXAConnection.OBJECT_RECOVERY);
os.packString(_productName);
os.packString(_productVersion);
os.packString(_jndiName);
if (_theXAResource instanceof Serializable) {
try {
ByteArrayOutputStream s = new ByteArrayOutputStream();
ObjectOutputStream o = new ObjectOutputStream(s);
o.writeObject(_theXAResource);
o.close();
os.packBoolean(true);
String name = _theXAResource.getClass().getName();
os.packString(name);
os.packBytes(s.toByteArray());
} catch (NotSerializableException ex) {
jtaLogger.i18NLogger.warn_resources_arjunacore_savestate();
return false;
}
} else {
// have to rely upon XAResource.recover!
os.packBoolean(false);
}
} else {
os.packInt(RecoverableXAConnection.AUTO_RECOVERY);
os.packString(_recoveryObject.getClass().getName());
_recoveryObject.packInto(os);
}
res = true;
} catch (Exception e) {
jtaLogger.i18NLogger.warn_resources_arjunacore_savestateerror(
_theXAResource.toString(), XAHelper.xidToString(_tranID), e);
res = false;
}
if (res) res = super.save_state(os, t);
return res;
}
/**
* For commit_one_phase we can do whatever we want since the transaction outcome is whatever we
* want. Therefore, we do not need to save any additional recoverable state, such as a reference
* to the transaction coordinator, since it will not have an intentions list anyway.
*/
public int topLevelOnePhaseCommit() {
if (jtaLogger.logger.isTraceEnabled()) {
jtaLogger.logger.trace("XAResourceRecord.topLevelOnePhaseCommit for " + this);
}
boolean commit = true;
if (_tranID == null) {
jtaLogger.i18NLogger.warn_resources_arjunacore_opcnulltx("XAResourceRecord.1pc");
return TwoPhaseOutcome.ONE_PHASE_ERROR; // rolled back!!
} else {
if (_theXAResource != null) {
if (_heuristic != TwoPhaseOutcome.FINISH_OK) return _heuristic;
XAException endHeuristic = null;
XAException endRBOnly = null;
try {
/*
* TODO in Oracle the end is not needed. Is this common
* across other RMs?
*/
if (endAssociation()) {
_theXAResource.end(_tranID, XAResource.TMSUCCESS);
}
} catch (XAException e1) {
/*
* Now it's not legal to return a heuristic from end, but
* apparently Oracle does (http://jira.jboss.com/jira/browse/JBTM-343)
* Since this is 1PC we can call forget: the outcome of the
* transaction is the outcome of the participant.
*/
switch (e1.errorCode) {
case XAException.XA_HEURHAZ:
case XAException.XA_HEURMIX:
case XAException.XA_HEURCOM:
case XAException.XA_HEURRB:
endHeuristic = e1;
break;
case XAException.XA_RBROLLBACK:
case XAException.XA_RBCOMMFAIL:
case XAException.XA_RBDEADLOCK:
case XAException.XA_RBINTEGRITY:
case XAException.XA_RBOTHER:
case XAException.XA_RBPROTO:
case XAException.XA_RBTIMEOUT:
case XAException.XA_RBTRANSIENT:
/*
* Has been marked as rollback-only. We still
* need to call rollback.
*/
endRBOnly = e1;
commit = false;
break;
case XAException.XAER_RMERR:
case XAException.XAER_NOTA:
case XAException.XAER_PROTO:
case XAException.XAER_INVAL:
case XAException.XAER_RMFAIL:
default:
{
jtaLogger.i18NLogger.warn_resources_arjunacore_opcerror(
XAHelper.xidToString(_tranID),
_theXAResource.toString(),
XAHelper.printXAErrorCode(e1),
e1);
removeConnection();
return TwoPhaseOutcome.FINISH_ERROR;
}
}
} catch (RuntimeException e) {
jtaLogger.i18NLogger.warn_resources_arjunacore_opcerror(
XAHelper.xidToString(_tranID), _theXAResource.toString(), "-", e);
throw e;
}
try {
/*
* Not strictly necessary since calling commit will
* do the rollback if end failed as above.
*/
if (endHeuristic
!= null) // catch those RMs that terminate in end rather than follow the spec
throw endHeuristic;
if (commit) _theXAResource.commit(_tranID, true);
else {
_theXAResource.rollback(_tranID);
throw endRBOnly;
}
} catch (XAException e1) {
jtaLogger.i18NLogger.warn_resources_arjunacore_opcerror(
XAHelper.xidToString(_tranID),
_theXAResource.toString(),
XAHelper.printXAErrorCode(e1),
e1);
/*
* XA_HEURHAZ, XA_HEURCOM, XA_HEURRB, XA_HEURMIX,
* XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or
* XAER_PROTO. XA_RB*
*/
switch (e1.errorCode) {
case XAException.XA_HEURHAZ:
case XAException.XA_HEURMIX:
return TwoPhaseOutcome.HEURISTIC_HAZARD;
case XAException.XA_HEURCOM:
forget();
break;
case XAException.XA_HEURRB:
forget();
return TwoPhaseOutcome.ONE_PHASE_ERROR;
case XAException.XA_RBROLLBACK:
case XAException.XA_RBCOMMFAIL:
case XAException.XA_RBDEADLOCK:
case XAException.XA_RBINTEGRITY:
case XAException.XA_RBOTHER:
case XAException.XA_RBPROTO:
case XAException.XA_RBTIMEOUT:
case XAException.XA_RBTRANSIENT:
case XAException.XAER_RMERR:
return TwoPhaseOutcome.ONE_PHASE_ERROR;
case XAException.XAER_NOTA:
return TwoPhaseOutcome
.HEURISTIC_HAZARD; // something committed or rolled back without asking us!
case XAException.XAER_INVAL: // resource manager failed, did it rollback?
return TwoPhaseOutcome.HEURISTIC_HAZARD;
case XAException.XA_RETRY: // XA does not allow this to be thrown for 1PC!
case XAException.XAER_PROTO:
return TwoPhaseOutcome.ONE_PHASE_ERROR; // assume rollback
case XAException.XAER_RMFAIL:
default:
_committed = true; // will cause log to be rewritten
return TwoPhaseOutcome.FINISH_ERROR; // recovery should retry
}
} catch (Exception e2) {
jtaLogger.i18NLogger.warn_resources_arjunacore_opcerror(
XAHelper.xidToString(_tranID), _theXAResource.toString(), "-", e2);
return TwoPhaseOutcome.FINISH_ERROR;
} finally {
removeConnection();
}
} else return TwoPhaseOutcome.ONE_PHASE_ERROR;
}
if (commit) return TwoPhaseOutcome.FINISH_OK;
else return TwoPhaseOutcome.FINISH_ERROR;
}
public int topLevelCommit() {
if (jtaLogger.logger.isTraceEnabled()) {
jtaLogger.logger.trace("XAResourceRecord.topLevelCommit for " + this);
}
if (!_prepared) return TwoPhaseOutcome.NOT_PREPARED;
if (_tranID == null) {
jtaLogger.i18NLogger.warn_resources_arjunacore_commitnulltx("XAResourceRecord.commit");
return TwoPhaseOutcome.FINISH_ERROR;
} else {
if (_theXAResource == null) _theXAResource = getNewXAResource();
if (_theXAResource != null) {
if (_heuristic != TwoPhaseOutcome.FINISH_OK) return _heuristic;
/*
* No need for end call here since we can only get to this
* point by going through prepare.
*/
try {
_theXAResource.commit(_tranID, false);
} catch (XAException e1) {
if (notAProblem(e1, true)) {
// some other thread got there first (probably)
} else {
jtaLogger.i18NLogger.warn_resources_arjunacore_commitxaerror(
XAHelper.xidToString(_tranID),
_theXAResource.toString(),
XAHelper.printXAErrorCode(e1),
e1);
/*
* XA_HEURHAZ, XA_HEURCOM, XA_HEURRB, XA_HEURMIX,
* XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or
* XAER_PROTO.
*/
switch (e1.errorCode) {
case XAException.XA_HEURHAZ:
return TwoPhaseOutcome.HEURISTIC_HAZARD;
case XAException.XA_HEURCOM: // what about forget?
// OTS doesn't support
// this code here.
break;
case XAException.XA_HEURRB:
case XAException
.XA_RBROLLBACK: // could really do with an ABORTED status in TwoPhaseOutcome to
// differentiate
case XAException.XA_RBCOMMFAIL:
case XAException.XA_RBDEADLOCK:
case XAException.XA_RBINTEGRITY:
case XAException.XA_RBOTHER:
case XAException.XA_RBPROTO:
case XAException.XA_RBTIMEOUT:
case XAException.XA_RBTRANSIENT:
case XAException.XAER_RMERR:
case XAException.XAER_PROTO: // XA spec implies rollback
return TwoPhaseOutcome.HEURISTIC_ROLLBACK;
case XAException.XA_HEURMIX:
return TwoPhaseOutcome.HEURISTIC_MIXED;
case XAException.XAER_NOTA:
if (_recovered) break; // committed previously and recovery completed
else
return TwoPhaseOutcome.HEURISTIC_HAZARD; // something terminated the transaction!
case XAException.XA_RETRY:
case XAException.XAER_RMFAIL:
_committed = true; // will cause log to be rewritten
/*
* Could do timeout retry here, but that could cause other resources in the list to go down the
* heuristic path (some are far too keen to do this). Fail and let recovery retry. Meanwhile
* the coordinator will continue to commit the other resources immediately.
*/
return TwoPhaseOutcome.FINISH_ERROR;
case XAException.XAER_INVAL: // resource manager failed, did it rollback?
default:
return TwoPhaseOutcome.HEURISTIC_HAZARD;
}
}
} catch (Exception e2) {
jtaLogger.i18NLogger.warn_resources_arjunacore_commitxaerror(
XAHelper.xidToString(_tranID), _theXAResource.toString(), "-", e2);
return TwoPhaseOutcome.FINISH_ERROR;
} finally {
removeConnection();
}
} else {
jtaLogger.i18NLogger.warn_resources_arjunacore_noresource(XAHelper.xidToString(_tranID));
if (XAResourceRecord._assumedComplete) {
jtaLogger.i18NLogger.info_resources_arjunacore_assumecomplete(
XAHelper.xidToString(_tranID));
return TwoPhaseOutcome.FINISH_OK;
} else return TwoPhaseOutcome.FINISH_ERROR;
}
}
return TwoPhaseOutcome.FINISH_OK;
}
public int topLevelAbort() {
if (jtaLogger.logger.isTraceEnabled()) {
jtaLogger.logger.trace("XAResourceRecord.topLevelAbort for " + this);
}
if (!_valid) return TwoPhaseOutcome.FINISH_ERROR;
if (_theTransaction != null
&& _theTransaction.getXAResourceState(_theXAResource) == TxInfo.OPTIMIZED_ROLLBACK) {
/*
* Already rolledback during delist.
*/
return TwoPhaseOutcome.FINISH_OK;
}
if (_tranID == null) {
jtaLogger.i18NLogger.warn_resources_arjunacore_rollbacknulltx("XAResourceRecord.rollback");
return TwoPhaseOutcome.FINISH_ERROR;
} else {
if (_theXAResource == null) _theXAResource = getNewXAResource();
if (_theXAResource != null) {
if (_heuristic != TwoPhaseOutcome.FINISH_OK) return _heuristic;
try {
if (!_prepared) {
if (endAssociation()) {
_theXAResource.end(_tranID, XAResource.TMSUCCESS);
}
}
} catch (XAException e1) {
if ((e1.errorCode >= XAException.XA_RBBASE) && (e1.errorCode < XAException.XA_RBEND)) {
/*
* Has been marked as rollback-only. We still
* need to call rollback.
*/
} else {
jtaLogger.i18NLogger.warn_resources_arjunacore_rollbackerror(
XAHelper.xidToString(_tranID),
_theXAResource.toString(),
XAHelper.printXAErrorCode(e1),
e1);
removeConnection();
return TwoPhaseOutcome.FINISH_ERROR;
}
} catch (RuntimeException e) {
jtaLogger.i18NLogger.warn_resources_arjunacore_rollbackerror(
XAHelper.xidToString(_tranID), _theXAResource.toString(), "-", e);
throw e;
}
try {
_theXAResource.rollback(_tranID);
} catch (XAException e1) {
if (notAProblem(e1, false)) {
// some other thread got there first (probably)
} else {
jtaLogger.i18NLogger.warn_resources_arjunacore_rollbackerror(
XAHelper.xidToString(_tranID),
_theXAResource.toString(),
XAHelper.printXAErrorCode(e1),
e1);
switch (e1.errorCode) {
case XAException.XAER_RMERR:
if (!_prepared) break; // just do the finally block
case XAException.XA_HEURHAZ:
return TwoPhaseOutcome.HEURISTIC_HAZARD;
case XAException.XA_HEURCOM:
return TwoPhaseOutcome.HEURISTIC_COMMIT;
case XAException.XA_HEURMIX:
return TwoPhaseOutcome.HEURISTIC_MIXED;
case XAException.XAER_NOTA:
if (_recovered) break; // rolled back previously and recovery completed
case XAException.XA_HEURRB: // forget?
case XAException.XA_RBROLLBACK:
case XAException.XA_RBEND:
case XAException.XA_RBCOMMFAIL:
case XAException.XA_RBDEADLOCK:
case XAException.XA_RBINTEGRITY:
case XAException.XA_RBOTHER:
case XAException.XA_RBPROTO:
case XAException.XA_RBTIMEOUT:
break;
default:
return TwoPhaseOutcome.FINISH_ERROR;
}
}
} catch (Exception e2) {
jtaLogger.i18NLogger.warn_resources_arjunacore_rollbackerror(
XAHelper.xidToString(_tranID), _theXAResource.toString(), "-", e2);
return TwoPhaseOutcome.FINISH_ERROR;
} finally {
if (!_prepared) removeConnection();
}
} else {
jtaLogger.i18NLogger.warn_resources_arjunacore_noresource(XAHelper.xidToString(_tranID));
if (XAResourceRecord._assumedComplete) {
jtaLogger.i18NLogger.info_resources_arjunacore_assumecomplete(
XAHelper.xidToString(_tranID));
return TwoPhaseOutcome.FINISH_OK;
} else return TwoPhaseOutcome.FINISH_ERROR;
}
}
return TwoPhaseOutcome.FINISH_OK;
}
public int topLevelPrepare() {
if (jtaLogger.logger.isTraceEnabled()) {
jtaLogger.logger.trace("XAResourceRecord.topLevelPrepare for " + this);
}
if (!_valid || (_theXAResource == null) || (_tranID == null)) {
jtaLogger.i18NLogger.warn_resources_arjunacore_preparenulltx("XAResourceRecord.prepare");
removeConnection();
return TwoPhaseOutcome.PREPARE_NOTOK;
}
try {
if (endAssociation()) {
_theXAResource.end(_tranID, XAResource.TMSUCCESS);
}
_prepared = true;
if (_theXAResource.prepare(_tranID) == XAResource.XA_RDONLY) {
if (TxControl.isReadonlyOptimisation()) {
// we won't be called again, so we need to tidy up now
removeConnection();
}
return TwoPhaseOutcome.PREPARE_READONLY;
} else return TwoPhaseOutcome.PREPARE_OK;
} catch (XAException e1) {
jtaLogger.i18NLogger.warn_resources_arjunacore_preparefailed(
XAHelper.xidToString(_tranID),
_theXAResource.toString(),
XAHelper.printXAErrorCode(e1),
e1);
/*
* XA_RB*, XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or
* XAER_PROTO.
*/
if (_rollbackOptimization) // won't have rollback called on it
removeConnection();
switch (e1.errorCode) {
case XAException.XAER_RMERR:
case XAException.XAER_RMFAIL:
case XAException.XA_RBROLLBACK:
case XAException.XA_RBEND:
case XAException.XA_RBCOMMFAIL:
case XAException.XA_RBDEADLOCK:
case XAException.XA_RBINTEGRITY:
case XAException.XA_RBOTHER:
case XAException.XA_RBPROTO:
case XAException.XA_RBTIMEOUT:
case XAException.XAER_INVAL:
case XAException.XAER_PROTO:
case XAException
.XAER_NOTA: // resource may have arbitrarily rolled back (shouldn't, but ...)
return TwoPhaseOutcome.PREPARE_NOTOK; // will not call rollback
default:
return TwoPhaseOutcome
.HEURISTIC_HAZARD; // we're not really sure (shouldn't get here though).
}
} catch (Exception e2) {
jtaLogger.i18NLogger.warn_resources_arjunacore_preparefailed(
XAHelper.xidToString(_tranID), _theXAResource.toString(), "-", e2);
if (_rollbackOptimization) // won't have rollback called on it
removeConnection();
return TwoPhaseOutcome.PREPARE_NOTOK;
}
}
