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package com.sun.jts.jtsxa;
import org.omg.CosTransactions.*;
import org.omg.CORBA.*;
import org.omg.PortableServer.*;
import com.sun.jts.CosTransactions.*;
import com.sun.jts.jta.*;
import javax.transaction.xa.*;
//import com.sun.jts.etsjdbc.odbc.NativeXAResourceImpl;
import com.sun.jts.jta.TransactionState;
import com.sun.jts.codegen.jtsxa.*;
import java.util.logging.Logger;
import java.util.logging.Level;
import com.sun.logging.LogDomains;
import com.sun.jts.utils.LogFormatter;
/* An implementation of org.omg.CosTransactions.Resource to support
* X/Open XA compliant resource managers.
*/
public class OTSResourceImpl extends OTSResourcePOA implements OTSResource {
private static POA poa = null;
private OTSResource thisRef = null;
private XAResource xaRes = null;
private Xid xid = null;
private TransactionState tranState = null;
/*
Logger to log transaction messages
*/
static Logger _logger = LogDomains.getLogger(OTSResourceImpl.class, LogDomains.TRANSACTION_LOGGER);
/**
* Construct an XAResource object.
*
* @param xid the global transaction identifier
* @param xaRes the XAServer object associated with the resource manager
*/
public OTSResourceImpl(Xid xid, XAResource xaRes,
TransactionState tranState) {
this.xaRes= xaRes; // Stash away the XAServer object
this.xid= xid; // Stash away the Transaction identifier
this.tranState = tranState;
}
/**
* Commit a transaction.
*
* @exception NotPrepared the resource manager has not been called
* for prepare.
* @exception HeuristicRollback a heuristic decision has been made,
* and the resource rolledback.
* @exception HeuristicHazard a heuristic decision has been made,
* but the disposition of
* the resource is unknown.
* @exception HeuristicMixed a heuristic decision has been made, some
* updates have been commited
* and others rolled back.
* @exception SystemException an unindentified error has been reported
* by the resource manager.
*/
public void commit() throws NotPrepared, HeuristicRollback,
HeuristicHazard, HeuristicMixed, SystemException {
//ensureInitialized();
try {
xaRes.commit(xid, false);
} catch (Exception ex) {
destroy();
if (!(ex instanceof XAException)) {
INTERNAL internal = new INTERNAL(0,CompletionStatus.COMPLETED_MAYBE);
internal.initCause(ex);
_logger.log(Level.WARNING, "jts.unexpected_error_occurred_twopc_commit", ex);
throw internal;
}
XAException e = (XAException) ex;
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE, "An XAException occurred in twopc commit", e);
if (e.errorCode == XAException.XA_HEURRB)
throw new HeuristicRollback(ex.getMessage());
if (e.errorCode == XAException.XA_HEURHAZ)
throw new HeuristicHazard(ex.getMessage());
if (e.errorCode == XAException.XA_HEURMIX)
throw new HeuristicMixed(ex.getMessage());
if (e.errorCode == XAException.XA_RBPROTO)
throw new NotPrepared(ex.getMessage());
if (e.errorCode == XAException.XA_HEURCOM) {
// Can't throw HeuristicCommit exception because org.omg.CosTransactions.ResourceOperations#commit
// doesn't declare it
HeuristicHazard hh = new HeuristicHazard(ex.getMessage());
hh.initCause(ex);
throw hh;
}
if ((e.errorCode == XAException.XA_RETRY) ||
(e.errorCode == XAException.XA_RBTRANSIENT) ||
(e.errorCode == XAException.XA_RBCOMMFAIL))
throw new TRANSIENT();
if (e.errorCode >= XAException.XA_RBBASE &&
e.errorCode <= XAException.XA_RBEND) {
throw new HeuristicRollback(ex.getMessage());
}
INTERNAL internal = new INTERNAL(0,CompletionStatus.COMPLETED_MAYBE);
internal.initCause(ex);
_logger.log(Level.WARNING, "jts.unexpected_error_occurred_twopc_commit", ex);
throw internal;
}
destroy();
return;
}
/**
* Commit a transaction, using one-phase optimization.
*
* @exception HeuristicHazard a heuristic decision has been made,
* but the disposition of
* the resource is unknown.
* @exception SystemException an unindentified error has been reported
* by the resource manager.
*/
public void commit_one_phase() throws HeuristicHazard, SystemException {
//ensureInitialized();
try {
xaRes.commit(xid, true);
} catch (Exception ex) {
destroy();
if (!(ex instanceof XAException)) {
INTERNAL internal = new INTERNAL(0,CompletionStatus.COMPLETED_MAYBE);
internal.initCause(ex);
_logger.log(Level.WARNING, "jts.unexpected_error_occurred_twopc_commit", ex);
throw internal;
}
XAException e = (XAException) ex;
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE, "An XAException occurred in c_o_p", e);
if (e.errorCode == XAException.XA_HEURRB)
throw new HeuristicHazard(ex.getMessage());
if (e.errorCode == XAException.XA_HEURHAZ)
throw new HeuristicHazard(ex.getMessage());
/** XA_HEURMIX should translate to HeuristicMixedException
if (e.errorCode == XAException.XA_HEURMIX)
throw new HeuristicHazard(ex.getMessage());
//IASRI START 4722883
/**
if (e.errorCode >= XAException.XA_RBBASE &&
e.errorCode <= XAException.XA_RBEND)
return;
if (e.errorCode == XAException.XA_HEURCOM)
return;
**/
if ((e.errorCode == XAException.XA_RETRY) ||
(e.errorCode == XAException.XA_RBTRANSIENT) ||
(e.errorCode == XAException.XA_RBCOMMFAIL))
throw new TRANSIENT();
// Use HeuristicHazard as a temp exception because CosTransactions.idl Resource
// has commit_one_phase() defined to throw only HeuristicHazard
if (e.errorCode >= XAException.XA_RBBASE && e.errorCode <= XAException.XA_RBEND ||
e.errorCode == XAException.XA_HEURMIX || e.errorCode == XAException.XA_HEURCOM) {
HeuristicHazard hazex = new HeuristicHazard();
((Throwable)hazex).initCause((Throwable)ex);
throw hazex;
}
//IASRI END 4722883
if (e.errorCode == XAException.XAER_RMERR || e.errorCode == XAException.XAER_NOTA) {
_logger.log(Level.WARNING, "jts.unexpected_error_occurred_twopc_commit", ex);
throw new TRANSACTION_ROLLEDBACK(0, CompletionStatus.COMPLETED_NO);
}
INTERNAL internal = new INTERNAL(0,CompletionStatus.COMPLETED_MAYBE);
internal.initCause(ex);
_logger.log(Level.WARNING, "jts.unexpected_error_occurred_twopc_commit", ex);
throw internal;
}
destroy();
return;
}
/**
* The resource manager can forget all knowledge of the transaction.
*
*/
public void forget() {
//ensureInitialized();
// Perform the XA operation.
try {
xaRes.forget(xid);
} catch (XAException e) {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"An XAException occurred in forget", e);
// currently do nothing..
}
destroy();
return;
}
/**
* Prepare a transaction.
*
* This is the first phase of the two-phase commit protocol.
*
* @exception HeuristicHazard a heuristic decision has been made,
* but the disposition of
* the resource is unknown.
* @exception HeuristicMixed a heuristic decision has been made,
* some updates have been commited
* and others rolled back.
*/
public Vote prepare() throws HeuristicHazard, HeuristicMixed {
//ensureInitialized();
int rc = XAException.XAER_PROTO;
// Perform the XA operation.
try {
rc = xaRes.prepare(xid); // xa_prepare()
} catch (XAException e) {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"An XAException occurred in prepare", e);
// currently do nothing..
if (e.errorCode == XAException.XAER_RMFAIL ||
e.errorCode == XAException.XAER_RMERR) {
throw new RuntimeException(e);
} else if (e.errorCode == XAException.XAER_PROTO ||
e.errorCode == XAException.XAER_INVAL) {
throw new INTERNAL(e.getMessage(), 0, CompletionStatus.COMPLETED_MAYBE);
}
}
// Convert to Vote
if (rc == XAResource.XA_OK) {
return Vote.VoteCommit;
}
if (rc == XAResource.XA_RDONLY) {
destroy();
return Vote.VoteReadOnly;
}
if (rc == Configuration.LAO_PREPARE_OK) {
destroy();
return null;
}
destroy();
return Vote.VoteRollback; // Any other return code is rollback
}
/**
* Rollback a transaction.
*
* @exception HeuristicCommit a heuristic decision has been made,
* and the resource committed.
* @exception HeuristicHazard a heuristic decision has been made,
* but the disposition of
* the resource is unknown.
* @exception HeuristicMixed a heuristic decision has been made,
* some updates have been commited
* and others rolled back.
* @exception SystemException an unindentified error has been reported
* by the resource manager
*/
public void rollback() throws HeuristicCommit, HeuristicMixed,
HeuristicHazard, SystemException {
//ensureInitialized();
try {
if (tranState == null) {
// this block will be entered during recovery processing.
// there is no tranState object available during recovery.
xaRes.rollback(xid);
} else {
// need to worry about asynchronous rollback
tranState.rollback(xaRes);
}
} catch (Exception ex) {
destroy();
if (!(ex instanceof XAException)) {
INTERNAL internal = new INTERNAL(0,CompletionStatus.COMPLETED_MAYBE);
internal.initCause(ex);
_logger.log(Level.WARNING, "jts.unexpected_error_occurred_twopc_rollback", ex);
throw internal;
}
XAException e = (XAException) ex;
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE, "An XAException occurred in rollback", e);
if (e.errorCode == XAException.XA_HEURCOM)
throw new HeuristicCommit(ex.getMessage());
if (e.errorCode == XAException.XA_HEURHAZ)
throw new HeuristicHazard(ex.getMessage());
if (e.errorCode == XAException.XA_HEURMIX)
throw new HeuristicMixed(ex.getMessage());
if ((e.errorCode == XAException.XA_RETRY) ||
(e.errorCode == XAException.XA_RBTRANSIENT) ||
(e.errorCode == XAException.XA_RBCOMMFAIL))
throw new TRANSIENT();
if (e.errorCode == XAException.XAER_RMERR ||
e.errorCode == XAException.XA_RBROLLBACK ||
e.errorCode == XAException.XAER_NOTA ||
e.errorCode == XAException.XAER_RMFAIL) {
_logger.log(Level.WARNING, "jts.unexpected_error_occurred_twopc_rollback", ex);
throw new TRANSACTION_ROLLEDBACK(0, CompletionStatus.COMPLETED_MAYBE);
}
if (e.errorCode == XAException.XA_HEURRB) {
// Can't throw HeuristicRollback exception because org.omg.CosTransactions.ResourceOperations#rollback
// doesn't declare it
HeuristicHazard hh = new HeuristicHazard(ex.getMessage());
hh.initCause(ex);
throw hh;
}
INTERNAL internal = new INTERNAL(0,CompletionStatus.COMPLETED_MAYBE);
internal.initCause(ex);
_logger.log(Level.WARNING, "jts.unexpected_error_occurred_twopc_rollback", ex);
throw internal;
}
destroy();
return;
}
/**
* Return the global transaction identifier.
*
* @return the global transaction identifier as defined
* by org.omg.CosTransactions.otid_t
*
*/
public otid_t getGlobalTID() {
byte[] gtrid = xid.getGlobalTransactionId();
byte[] otidData = new byte[gtrid.length];
System.arraycopy(gtrid,0,otidData,0,gtrid.length);
otid_t otid = new otid_t(xid.getFormatId(),0,otidData);
return otid;
}
/**
* Returns the CORBA Object which represents this object.
*
* @return The CORBA object.
*
*/
public OTSResource getCORBAObjReference() {
if (thisRef == null) {
if (Configuration.getORB() == null) {
return this;
}
if (poa == null) {
poa = Configuration.getPOA("transient"/*#Frozen*/);
}
try {
poa.activate_object(this);
thisRef = OTSResourceHelper.
narrow(poa.servant_to_reference(this));
//thisRef = (com.sun.jts.jtsxa.OTSResource)this;
} catch (Exception exc) {
_logger.log(Level.SEVERE,"jts.create_xaresource_object_error", exc);
String msg = LogFormatter.getLocalizedMessage(_logger,
"jts.create_xaresource_object_error");
throw new org.omg.CORBA.INTERNAL(msg);
}
}
return thisRef;
}
public final String toString() {
return "OTSResource : XAResource " + xaRes + " XID " + xid;
}
/**
* Destroy the OTSResourceImpl object.
*
* @param servant the object to be destroyed.
*
*/
private void destroy() {
if (poa != null && thisRef != null) {
try {
poa.deactivate_object(poa.reference_to_id(thisRef));
thisRef = null;
} catch (Exception exc) {
_logger.log(Level.WARNING,"jts.object_destroy_error","OTSResource");
}
}
}
/**
* Ensure that the Native XA interface is initialized.
*
* Invoke the nativeXA initializer to ensure that this resource has had
* any necessary initialization performed on this thread.
* This will be necessary in the server environment where we
* have not been invoked via a transactional flow, and
* we may very well be executing on a new thread. The resource manager may
* have specific requirements, but it should not matter if initialization
* is performed twice.
*
* We also call down to the native interface informing that the transaction
* is about to complete. This permits any database specific action to be
* performed.prior to the actual xa operations marking completion.
*
private void ensureInitialized() {
// COMMENT(Ram J) - we do not support native xa drivers.
if (this.xaRes instanceof NativeXAResourceImpl) {
NativeXAResourceImpl xaResImpl = (NativeXAResourceImpl) xaRes;
xaResImpl.nativeXA.initialize(xaResImpl,
xaResImpl.xaswitch,
xaResImpl.open,
xaResImpl.close,
xaResImpl.getRMID(),
false);
xaResImpl.nativeXA.aboutToComplete(xaResImpl, (XID) xid);
}
}
*/
/*
* These methods are there to satisy the compiler. At some point
* when we move towards a tie based model, the org.omg.Corba.Object
* interface method implementation below shall be discarded.
*/
public org.omg.CORBA.Object _duplicate() {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public void _release() {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public boolean _is_a(String repository_id) {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public boolean _is_equivalent(org.omg.CORBA.Object that) {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public boolean _non_existent() {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public int _hash(int maximum) {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public Request _request(String operation) {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public Request _create_request(Context ctx,
String operation,
NVList arg_list,
NamedValue result) {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public Request _create_request(Context ctx,
String operation,
NVList arg_list,
NamedValue result,
ExceptionList exceptions,
ContextList contexts) {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public org.omg.CORBA.Object _get_interface_def() {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public org.omg.CORBA.Policy _get_policy(int policy_type) {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public org.omg.CORBA.DomainManager[] _get_domain_managers() {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
public org.omg.CORBA.Object _set_policy_override(
org.omg.CORBA.Policy[] policies,
org.omg.CORBA.SetOverrideType set_add) {
throw new org.omg.CORBA.NO_IMPLEMENT("This is a locally constrained object.");
}
}