com.sun.jts.CosTransactions.CurrentImpl Maven / Gradle / Ivy
/*
* Copyright (c) 2022 Contributors to the Eclipse Foundation
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1995-1997 IBM Corp. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
//----------------------------------------------------------------------------
//
// Module: CurrentImpl.java
//
// Description: Transaction Current pseudo-object implementation.
//
// Product: com.sun.jts.CosTransactions
//
// Author: Simon Holdsworth
//
// Date: March, 1997
//----------------------------------------------------------------------------
package com.sun.jts.CosTransactions;
import com.sun.jts.codegen.otsidl.JControl;
import com.sun.jts.codegen.otsidl.JControlHelper;
import com.sun.logging.LogDomains;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.omg.CORBA.CompletionStatus;
import org.omg.CORBA.INVALID_TRANSACTION;
import org.omg.CORBA.NO_PERMISSION;
import org.omg.CORBA.SystemException;
import org.omg.CORBA.TRANSACTION_ROLLEDBACK;
import org.omg.CosTransactions.Control;
import org.omg.CosTransactions.Coordinator;
import org.omg.CosTransactions.HeuristicHazard;
import org.omg.CosTransactions.HeuristicMixed;
import org.omg.CosTransactions.InvalidControl;
import org.omg.CosTransactions.NoTransaction;
import org.omg.CosTransactions.Status;
import org.omg.CosTransactions.StatusHolder;
import org.omg.CosTransactions.SubtransactionsUnavailable;
import org.omg.CosTransactions.Terminator;
import org.omg.CosTransactions.TransactionFactory;
import org.omg.CosTransactions.Unavailable;
/**The CurrentImpl class is our implementation of the standard Current
* interface. It provides operations that enable the demarcation of a
* transaction's scope. These operations are specified in pseudo-IDL. The
* CurrentImpl ensures that the CurrentTransaction class is set up when the
* CurrentImpl is created. As an instance of this class may be accessed from
* multiple threads within a process, serialisation for thread-safety is
* necessary in the implementation.
*
* @version 0.01
*
* @author Simon Holdsworth, IBM Corporation
*
* @see
*/
//----------------------------------------------------------------------------
// CHANGE HISTORY
//
// Version By Change Description
// 0.01 SAJH Initial implementation.
//-----------------------------------------------------------------------------
public class CurrentImpl extends org.omg.CORBA.LocalObject
implements org.omg.CosTransactions.Current {
private int timeOut = 0;
private static boolean active = true;
private TransactionFactory factory = null;
/*
Logger to log transaction messages
*/
static Logger _logger = LogDomains.getLogger(CurrentImpl.class, LogDomains.TRANSACTION_LOGGER);
/**Default CurrentImpl constructor.
*
* @param
*
* @return
*
* @see
*/
CurrentImpl() {
// Ensure the CurrentTransaction state has been initialised.
CurrentTransaction.initialise();
}
/**Creates a new Control object, containing new Terminator and Coordinator
* objects.
*
* The current timeout value is passed to the Coordinator.
*
* The Control object is made the current one for the thread on which this
* method was invoked. If there is already a current Control the existing
* Control that represents the parent transaction is stacked behind the new one,
* which becomes the current one.
*
* @param
*
* @return
*
* @exception SubtransactionsUnavailable A subtransaction cannot be begun,
* either because the Transaction Service does not support nested transactions
* or because the current transaction is completing.
* @exception INVALID_TRANSACTION The transaction could not be begun as the
* current thread of control has pending non-transactional work.
* @exception SystemException The operation failed.
*
* @see
*/
@Override
public void begin()
throws INVALID_TRANSACTION, SystemException, SubtransactionsUnavailable {
ControlImpl controlImpl = null;
// Until we need to check for resync in progress, synchronize the method.
synchronized(this) {
// If the transaction service is not active, throw an exception.
if( !active ) {
NO_PERMISSION exc = new NO_PERMISSION(0,CompletionStatus.COMPLETED_NO);
throw exc;
}
if (Configuration.isDBLoggingEnabled()) {
//Put a marker record into the log table
LogDBHelper.getInstance().setServerName();
}
// Get a reference to the current ControlImpl object.
try {
controlImpl = CurrentTransaction.getCurrent();
} catch( SystemException exc ) {
}
// Release the lock now so that if the TransactionFactoryImpl call has to block
// (during resync), the lock does not prevent other threads from running.
}
// If there is a current Control object, then we should try to begin a
// subtransaction.
if( controlImpl != null ) {
try {
// Get the Coordinator reference, and use it to create a subtransaction.
// If an exception was raised, return it to the caller.
Coordinator coord = controlImpl.get_coordinator();
// Create a new Control object to represent the subtransaction.
Control control = coord.create_subtransaction();
// This control object may be remote, if the original Control object was.
// In this case we need to deal with it in the same was as we do in the
// resume method. Any exception which is thrown during this process will
// result in SubtransactionsUnavailable thrown to the caller.
JControl jcontrol = JControlHelper.narrow(control);
if( jcontrol != null ) {
controlImpl = ControlImpl.servant(jcontrol);
}
// If there is no local ControlImpl object for the transaction, we create one
// now.
if( controlImpl == null ) {
controlImpl = new ControlImpl(control);
}
} catch( Throwable exc ) {
SubtransactionsUnavailable ex2 = new SubtransactionsUnavailable();
throw ex2;
}
} else {
//$ CurrentTransaction.report();
//$ RecoveryManager.report();
//$ ControlImpl.report();
//$ CoordinatorLog.report();
//$ TimeoutManager.report();
//
try {
// Get the TransactionFactory which should be used from this application.
// This block must be synchronized so that different threads do not try
// this concurrently.
synchronized(this) {
if( factory == null ) {
factory = Configuration.getFactory();
}
}
// Create the new transaction.
if (factory != null) {
if(_logger.isLoggable(Level.FINEST))
{
_logger.logp(Level.FINEST,"CurrentImpl","begin()",
"Before invoking create() on TxFactory");
}
if (Configuration.isLocalFactory()) {
controlImpl = ((TransactionFactoryImpl) factory).localCreate(timeOut);
} else {
Control control = factory.create(timeOut);
// This control object is remote.
// In this case we need to deal with it in the same was as we do in the
// resume method. Any exception which is thrown during this process will
// result in SubtransactionsUnavailable thrown to the caller.
JControl jcontrol = JControlHelper.narrow(control);
if (jcontrol != null) {
controlImpl = ControlImpl.servant(jcontrol);
}
// If there is no local ControlImpl object for the transaction, we create one
// now.
if (controlImpl == null) {
controlImpl = new ControlImpl(control);
}
}
}
} catch( Throwable exc ) {
_logger.log(Level.WARNING,
"jts.unexpected_error_in_begin",exc);
}
}
// If the new Control reference is NULL, raise an error at this point.
if( controlImpl == null ){
INVALID_TRANSACTION exc = new INVALID_TRANSACTION(MinorCode.FactoryFailed,
CompletionStatus.COMPLETED_NO);
throw exc;
} else {
try {
if(_logger.isLoggable(Level.FINEST))
{
_logger.logp(Level.FINEST,"CurrentImpl","begin()",
"Before invoking CurrentTransaction.setCurrent(control,true)");
}
CurrentTransaction.setCurrent(controlImpl,true);
}
// The INVALID_TRANSACTION exception at this point indicates that the transaction
// may not be started. Clean up the state of the objects in the transaction.
catch( INVALID_TRANSACTION exc ) {
controlImpl.destroy();
throw (INVALID_TRANSACTION)exc.fillInStackTrace();
}
}
}
//START RI PERFIMPROVEMENT
// This method is introduced to improve the performance. without this method external
// synchronization is required to associate the timeout with this transaction
// This method is not part of the standard Current interface
/**Creates a new Control object, containing new Terminator and Coordinator
* objects.
*
* Input parameter timeout value is passed to the Coordinator.
*
* The Control object is made the current one for the thread on which this
* method was invoked. If there is already a current Control the existing
* Control that represents the parent transaction is stacked behind the new one,
* which becomes the current one.
*
* @param
*
* @return
*
* @exception SubtransactionsUnavailable A subtransaction cannot be begun,
* either because the Transaction Service does not support nested transactions
* or because the current transaction is completing.
* @exception INVALID_TRANSACTION The transaction could not be begun as the
* current thread of control has pending non-transactional work.
* @exception SystemException The operation failed.
*
* @see
*/
public void begin(int time_out)
throws INVALID_TRANSACTION, SystemException, SubtransactionsUnavailable {
ControlImpl controlImpl = null;
// Until we need to check for resync in progress, synchronize the method.
synchronized(this) {
// If the transaction service is not active, throw an exception.
if( !active ) {
NO_PERMISSION exc = new NO_PERMISSION(0,CompletionStatus.COMPLETED_NO);
throw exc;
}
if (Configuration.isDBLoggingEnabled()) {
//Put a marker record into the log table
LogDBHelper.getInstance().setServerName();
}
// Get a reference to the current ControlImpl object.
try {
controlImpl = CurrentTransaction.getCurrent();
} catch( SystemException exc ) {
}
// Release the lock now so that if the TransactionFactoryImpl call has to block
// (during resync), the lock does not prevent other threads from running.
}
// If there is a current Control object, then we should try to begin a
// subtransaction.
if( controlImpl != null ) {
try {
// Get the Coordinator reference, and use it to create a subtransaction.
// If an exception was raised, return it to the caller.
Coordinator coord = controlImpl.get_coordinator();
// Create a new Control object to represent the subtransaction.
Control control = coord.create_subtransaction();
// This control object may be remote, if the original Control object was.
// In this case we need to deal with it in the same was as we do in the
// resume method. Any exception which is thrown during this process will
// result in SubtransactionsUnavailable thrown to the caller.
JControl jcontrol = JControlHelper.narrow(control);
if( jcontrol != null ) {
controlImpl = ControlImpl.servant(jcontrol);
}
// If there is no local ControlImpl object for the transaction, we create one
// now.
if( controlImpl == null ) {
controlImpl = new ControlImpl(control);
}
} catch( Throwable exc ) {
SubtransactionsUnavailable ex2 = new SubtransactionsUnavailable();
throw ex2;
}
} else {
//$ CurrentTransaction.report();
//$ RecoveryManager.report();
//$ ControlImpl.report();
//$ CoordinatorLog.report();
//$ TimeoutManager.report();
//
try {
// Get the TransactionFactory which should be used from this application.
// This block must be synchronized so that different threads do not try
// this concurrently.
synchronized(this) {
if( factory == null ) {
factory = Configuration.getFactory();
}
}
// Create the new transaction.
if (factory != null) {
if(_logger.isLoggable(Level.FINEST))
{
_logger.logp(Level.FINEST,"CurrentImpl","begin()",
"Before invoking create() on TxFactory");
}
if (Configuration.isLocalFactory()) {
controlImpl = ((TransactionFactoryImpl) factory).localCreate(time_out);
} else {
Control control = factory.create(time_out);
// This control object is remote.
// In this case we need to deal with it in the same was as we do in the
// resume method. Any exception which is thrown during this process will
// result in SubtransactionsUnavailable thrown to the caller.
JControl jcontrol = JControlHelper.narrow(control);
if (jcontrol != null) {
controlImpl = ControlImpl.servant(jcontrol);
}
// If there is no local ControlImpl object for the transaction, we create one
// now.
if (controlImpl == null) {
controlImpl = new ControlImpl(control);
}
}
}
} catch( Throwable exc ) {
_logger.log(Level.WARNING,
"jts.unexpected_error_in_begin",exc);
}
}
// If the new Control reference is NULL, raise an error at this point.
if (controlImpl == null) {
throw new INVALID_TRANSACTION(MinorCode.FactoryFailed, CompletionStatus.COMPLETED_NO);
}
try {
if (_logger.isLoggable(Level.FINEST)) {
_logger.logp(Level.FINEST, "CurrentImpl", "begin()",
"Before invoking CurrentTransaction.setCurrent(control,true)");
}
CurrentTransaction.setCurrent(controlImpl,true);
} catch (INVALID_TRANSACTION exc) {
// The INVALID_TRANSACTION exception at this point indicates that the transaction
// may not be started. Clean up the state of the objects in the transaction.
controlImpl.destroy();
throw exc;
}
}
//END RI PERFIMPROVEMENT
/**Completes the current transaction.
*
* This operation can only be called if there is a Terminator object available.
*
* @param reportHeuristics Indicates that heuristic exceptions should be
* passed back to the caller.
*
* @return
*
* @exception NoTransaction There is no current transaction to commit.
* @exception INVALID_TRANSACTION The current transaction has outstanding
* work and the Transaction Service is "checked".
* @exception NO_PERMISSION The caller is not allowed to commit the
* transaction.
* @exception TRANSACTION_ROLLEDBACK The transaction could not be committed,
* and has been rolled back.
* @exception HeuristicHazard Heuristic action may have been taken by a
* participant in the transaction.
* @exception HeuristicMixed Heuristic action has been taken by a participant
* in the transaction.
* @exception SystemException The operation failed.
*
* @see
*/
@Override
public void commit( boolean reportHeuristics )
throws NO_PERMISSION, INVALID_TRANSACTION, TRANSACTION_ROLLEDBACK,
NoTransaction, HeuristicHazard, HeuristicMixed, SystemException {
// Get the current Control object. If there is none, raise the
// NoTransaction exception and return.
ControlImpl controlImpl = CurrentTransaction.getCurrent();
if( controlImpl == null ) {
NoTransaction exc = new NoTransaction();
throw exc;
}
// Get the local identifier from the Control object. Raise an exception if
// the transaction the Control represents has been completed.
int active = 1;
if( !controlImpl.representsRemoteControl() ) {
StatusHolder status = new StatusHolder();
controlImpl.getLocalTID(status);
if( status.value != Status.StatusActive ) {
// added (Ram J) to handle asynchronous aborts. If a
// thread calls commit after an asynchronous abort happens,
// end the thread-tx association before throwing
// TRANSACTION_ROLLEDBACK exception.
// In the case where someone had called terminator.commit
// directly successfully, then end the thread association,
// before throwing INVALID_TRANSACTION exception.
CurrentTransaction.endCurrent(true);
if( status.value == Status.StatusRolledBack ) {
TRANSACTION_ROLLEDBACK exc =
new TRANSACTION_ROLLEDBACK(0, CompletionStatus.COMPLETED_NO);
throw exc;
}
INVALID_TRANSACTION exc = new INVALID_TRANSACTION(MinorCode.Completed,
CompletionStatus.COMPLETED_NO);
throw exc;
}
// Check whether there are outstanding requests for this transaction, or
// other active threads.
active = controlImpl.numAssociated();
}
// If this is not the only active thread or there are outstanding requests,
// raise an exception and return.
if( (active != 1) || (controlImpl.isOutgoing()) ) {
/**
if( active != 1 ) {
}
if( controlImpl.isOutgoing() ) {
}
**/
INVALID_TRANSACTION exc = new INVALID_TRANSACTION(MinorCode.DeferredActivities,
CompletionStatus.COMPLETED_NO);
throw exc;
}
// Get the Terminator from the current Control object. If this fails, then
// return whatever exception was raised to the caller.
else {
Terminator term = null;
if (Configuration.isLocalFactory()) {
try {
term = controlImpl.get_localTerminator();
} catch (Throwable exc) {
NO_PERMISSION ex2 = new NO_PERMISSION(0,CompletionStatus.COMPLETED_NO);
throw ex2;
}
} else {
try {
term = controlImpl.get_terminator();
} catch( Throwable exc ) {
NO_PERMISSION ex2 = new NO_PERMISSION(0,CompletionStatus.COMPLETED_NO);
throw ex2;
}
// Tell the Terminator to commit the transaction.
// This will end the current association of the transaction, if the
// Terminator is local. If the Terminator is remote, we end the association
// ourselves, and do not request unstacking as there will be no stacked
// Control.
// End the association if the Terminator is remote. This is done under a
// local environment to ignore any exception. This must be done before
// the Terminator is called otherwise the ControlImpl object will get
// confused.
try {
if( Configuration.getProxyChecker().isProxy(term) ) {
CurrentTransaction.endCurrent(true);
}
} catch( Throwable exc ) {}
}
// Commit the transaction.
try{
term.commit(reportHeuristics);
} catch (TRANSACTION_ROLLEDBACK e) {
// ADDED (Ram J) (10/15/01) To handle asynchronous aborts. End
// thread-tx association before re-throwing exception. This is
// because commit/rollback operation by a different thread
// does not set all other thread's control's status to INACTIVE
// anymore, for performance purposes.
CurrentTransaction.endCurrent(true);
throw e;
}
// Free the ControlImpl object.
controlImpl.destroy();
}
}
/**Rolls back the changes performed under the current transaction.
*
* This operation can only be called if there is a Terminator object available.
*
* @param
*
* @return
*
* @exception NoTransaction There is no current transaction to rollback.
* @exception INVALID_TRANSACTION The current transaction has outstanding
* work and the Transaction Service is "checked".
* @exception NO_PERMISSION The caller is not allowed to roll the
* transaction back.
* @exception TRANSACTION_ROLLEDBACK The transaction has already been rolled
* back.
* @exception SystemException The operation failed.
*
* @see
*/
@Override
public void rollback()
throws NoTransaction, INVALID_TRANSACTION, NO_PERMISSION,
TRANSACTION_ROLLEDBACK, SystemException {
ControlImpl controlImpl = CurrentTransaction.getCurrent();
if( controlImpl == null ) {
NoTransaction exc = new NoTransaction();
throw exc;
}
// Get the local identifier from the Control object. Raise an exception if
// the transaction the Control represents has been completed.
int active = 1;
if( !controlImpl.representsRemoteControl() ) {
StatusHolder status = new StatusHolder();
controlImpl.getLocalTID(status);
if( status.value != Status.StatusActive ) {
// added (Ram J) to handle asynchronous aborts. If a
// thread calls rollback after an asynchronous abort happens,
// end the thread-tx association before throwing
// TRANSACTION_ROLLEDBACK exception.
// In the case where someone had called terminator.commit
// directly successfully, then end the thread association,
// before throwing INVALID_TRANSACTION exception.
CurrentTransaction.endCurrent(true);
if( status.value == Status.StatusRolledBack ) {
/* TN - do not throw rollback exception
TRANSACTION_ROLLEDBACK exc = new TRANSACTION_ROLLEDBACK(0,CompletionStatus.COMPLETED_NO);
throw exc;
*/
return;
}
INVALID_TRANSACTION exc = new INVALID_TRANSACTION(MinorCode.Completed,
CompletionStatus.COMPLETED_NO);
throw exc;
}
// Check whether there are outstanding requests for this transaction, or
// other active threads.
active = controlImpl.numAssociated();
}
// If this is not the only active thread or there are outstanding requests,
// raise an exception and return.
if( (active != 1) || (controlImpl.isOutgoing()) ) {
/**
if( active != 1 ) {
}
if( controlImpl.isOutgoing() ) {
}
**/
INVALID_TRANSACTION exc = new INVALID_TRANSACTION(MinorCode.DeferredActivities,
CompletionStatus.COMPLETED_NO);
throw exc;
}
// Get the Terminator from the current Control object. If this fails, then
// return whatever exception was raised to the caller.
else {
Terminator term = null;
if (Configuration.isLocalFactory()) {
try {
term = controlImpl.get_localTerminator();
} catch( Unavailable exc ) {
NO_PERMISSION ex2 = new NO_PERMISSION(0,CompletionStatus.COMPLETED_NO);
throw ex2;
}
} else {
try {
term = controlImpl.get_terminator();
} catch( Unavailable exc ) {
NO_PERMISSION ex2 = new NO_PERMISSION(0,CompletionStatus.COMPLETED_NO);
throw ex2;
}
// Tell the Terminator to roll the transaction back.
// This will end the current association of the transaction, if the
// Terminator is local. If the Terminator is remote, we end the association
// ourselves, and do not request unstacking as there will be no stacked
// Control.
// End the association if the Terminator is remote. This is done under a
// local environment to ignore any exception. This must be done before
// the Terminator is called otherwise the ControlImpl object will get
// confused.
try {
if( Configuration.getProxyChecker().isProxy(term) ) {
CurrentTransaction.endCurrent(true);
}
} catch( Throwable exc ) {}
}
// Roll the transaction back.
try{
term.rollback();
} catch (TRANSACTION_ROLLEDBACK e) {
// ADDED (Ram J) (10/15/01) To handle asynchronous aborts. End
// thread-tx association before re-throwing exception. This is
// because commit/rollback operation by a different thread
// does not set all other thread's control's status to INACTIVE
// anymore, for performance purposes.
CurrentTransaction.endCurrent(true);
//throw e; // no need to throw this for rollback operation.
}
// Free the ControlImpl object.
controlImpl.destroy();
}
}
/**Marks the current transaction such that is cannot be committed and only
* rolled back.
*
* @param
*
* @return
*
* @exception NoTransaction There is no current transaction to mark rollback-
* only.
*
* @see
*/
@Override
public void rollback_only()
throws NoTransaction {
// Get the reference of the current Coordinator. If there is none, raise the
// NoTransaction exception.
try {
Coordinator coord = CurrentTransaction.getCurrentCoordinator();
// Tell the Coordinator to mark itself rollback-only.
coord.rollback_only();
} catch( Throwable exc ) {
throw new NoTransaction();
}
}
/**Returns the status of the current transaction.
*
* @param
*
* @return The current status of the transaction. If there is no
* current transaction, the value StatusNoTransaction is returned.
*
* @see
*/
@Override
public Status get_status() {
Status result = Status.StatusNoTransaction;
try {
Coordinator coord = CurrentTransaction.getCurrentCoordinator();
// Ask the Coordinator object for its status, and return the value.
if( coord != null ) {
result = coord.get_status();
}
} catch( Unavailable exc ) {
} catch( TRANSACTION_ROLLEDBACK exc ) {
result = Status.StatusRolledBack;
} catch( SystemException exc ) {
result = Status.StatusUnknown;
}
return result;
}
/**Returns a printable string representing the current transaction.
*
* @param
*
* @return The transaction name. If there is no current transaction,
* null is returned.
*
* @see
*/
@Override
public String get_transaction_name() {
String result = null;
try {
Coordinator coord = CurrentTransaction.getCurrentCoordinator();
// Ask the Coordinator object for its name, and return the value.
if( coord != null ) {
result = coord.get_transaction_name();
}
}
// Ignore Unavailable (return null in this case), but allow other exceptions
// to percolate up.
catch( Unavailable exc ) {}
return result;
}
/**Sets the timeout value to be used for all subsequent transactions.
*
* @param timeout The timeout value in seconds.
*
* @return
*
* @see
*/
@Override
public void set_timeout( int timeout ) {
// timeout < 0 will be rejected (no op).
// timeout = 0 implies tx has no timeout or a default timeout is used.
// timeout > 0 implies tx will timeout at the end of the duration.
if (timeout >= 0) {
timeOut = timeout;
}
}
@Override
public int get_timeout() {
return timeOut;
}
/**Returns the current ControlImpl object.
*
* @param
*
* @return The Control object for the current transaction, or null
* if there is no current transaction.
*
* @exception TRANSACTION_ROLLEDBACK The current transaction has been rolled
* back.
*
* @see
*/
@Override
public Control get_control()
throws TRANSACTION_ROLLEDBACK {
Control result = null;
// Get the current Control reference from the TransactionManager. If there
// is none, return a NULL pointer.
// If the current Control object indicates that the transaction has ended,
// then the current association will be ended and the TRANSACTION_ROLLEDBACK
// exception will be raised.
ControlImpl control = CurrentTransaction.getCurrent();
if (control != null) {
if (Configuration.isLocalFactory()) {
result = control;
} else {
result = control.object();
}
}
return result;
}
/**Disassociates the current ControlImpl from the calling thread.
*
* @param
*
* @return The Control object for the suspended transaction. If
* there was no transaction, this will be null.
*
* @see
*/
@Override
public Control suspend() {
Control result = null;
ControlImpl cImpl = CurrentTransaction.endCurrent(false);
if(_logger.isLoggable(Level.FINEST))
{
_logger.logp(Level.FINEST,"CurrentImpl","suspend()",
"Current thread has been disassociated from control :"
+cImpl);
}
if (Configuration.isLocalFactory()) {
result = cImpl;
} else {
if (cImpl != null) {
result = cImpl.object();
}
}
return result;
}
/**Re-associates the given Control to the calling thread.
*
* If there is already a current ControlImpl, it is replaced as the current one.
*
* @param control The Control object to be made current.
*
* @return
*
* @exception InvalidControl The Control object passed as a parameter is
* not valid. This may be because the transaction it represents has
* already completed, or because the object is of the wrong type.
* @exception INVALID_TRANSACTION The transaction could not be begun as the
* current thread of control has pending non-transactional work.
*
* @see
*/
@Override
public void resume( Control control )
throws InvalidControl, INVALID_TRANSACTION {
ControlImpl contImpl = null;
// If the Control object is NULL, then this operation is actually a suspend
// operation, so end the current association with the thread.
if( control == null ) {
CurrentTransaction.endCurrent(false);
} else {
if (Configuration.isLocalFactory()) {
contImpl = (ControlImpl) control;
} else {
// Check the ControlImpl object is valid.
JControl jcontrol = JControlHelper.narrow(control);
// Try to locate the local ControlImpl object for the transaction.
if( jcontrol != null ) {
contImpl = ControlImpl.servant(jcontrol);
}
// If there is no local ControlImpl object for the transaction, we create one
// now.
if( contImpl == null ) {
try {
contImpl = new ControlImpl(control);
} catch( Exception exc ) {
InvalidControl ex2 = new InvalidControl();
throw ex2;
}
}
}
// End the current association regardless of whether there is one.
// Attempt to make the given ControlImpl object the current one.
try {
CurrentTransaction.endCurrent(false);
CurrentTransaction.setCurrent(contImpl,false);
if(_logger.isLoggable(Level.FINEST))
{
_logger.logp(Level.FINEST,"CurrentImpl","resume(control)",
"Current thread has been associated with control :"
+contImpl);
}
}
// The INVALID_TRANSACTION exception at this point indicates that the transaction
// may not be resumed.
catch( INVALID_TRANSACTION exc ) {
throw (INVALID_TRANSACTION)exc.fillInStackTrace();
}
}
}
/**Shuts down all services.
*
* @param immediate Indicates whether to ignore running transactions.
*
* @return
*
* @see
*/
synchronized void shutdown( boolean immediate ) {
// Inform the basic transaction services to shutdown.
CurrentTransaction.shutdown(immediate);
}
/**Prevents any further transactional activity in the process.
*
* @param
*
* @return
*
* @see
*/
static void deactivate() {
active = false;
}
//
// Provide a dummy routine to satisfy the abstract method inherited from org.omg.CosTransactions.Current
//
public String[] _ids() {
return null;
}
}