Example usage for org.springframework.transaction.support DefaultTransactionStatus isRollbackOnly

List of usage examples for org.springframework.transaction.support DefaultTransactionStatus isRollbackOnly

Introduction

In this page you can find the example usage for org.springframework.transaction.support DefaultTransactionStatus isRollbackOnly.

Prototype

@Override
public boolean isRollbackOnly() 

Source Link

Document

Determine the rollback-only flag via checking both the local rollback-only flag of this TransactionStatus and the global rollback-only flag of the underlying transaction, if any.

Usage

From source file:com.newmainsoftech.spray.slingong.datastore.Slim3PlatformTransactionManager.java

@Override
protected void doCommit(DefaultTransactionStatus defaultTransactionStatus) throws TransactionException {
    GlobalTransaction gtx = (GlobalTransaction) defaultTransactionStatus.getTransaction();
    Set<GlobalTransactionState> gtxStateSet = getGlobalTransactionStates(gtx);

    // Sanity check on precondition -----------------------------------------------------------
    /*//w w  w . j av  a 2s  . com
     * This will be called at outermost transaction boundary (defaultTransactionStatus.isNewTransaction() 
     * will return true). 
     * When defaultTransactionStatus has been set for roll back, roll back doesn't need to be handled 
     * within doCommit method. 
     *    When either defaultTransactionStatus's isGlobalRollbackOnly and shouldCommitOnGlobalRollbackOnly 
     *    returns true or its isLocalRollbackOnly returns true, then logic flow won't reach here and 
     *    roll back should have been performed by doRollback.
     */
    if (defaultTransactionStatus.isRollbackOnly()) {
        throw new TransactionSystemException(String.format(
                "Unexpected system state: the transaction for the GlobalTransaction "
                        + "instance (ID:%1$s) has been marked as roll-back only "
                        + "(LocalRollbackOnly:%2$b, GlobalRollbackOnly:%3$b).",
                (gtxStateSet.contains(GlobalTransactionState.GlobalTransactionInstance) ? gtx.getId() : "null"),
                defaultTransactionStatus.isLocalRollbackOnly(),
                defaultTransactionStatus.isGlobalRollbackOnly()));
    }
    if (!defaultTransactionStatus.isNewTransaction()) {
        throw new TransactionSystemException(String.format(
                "Unexpected system state: attempted to commit from participation of an existing "
                        + "transaction (of which GlobalTransacion Id is %1$s).",
                (gtxStateSet.contains(GlobalTransactionState.GlobalTransactionInstance) ? gtx.getId()
                        : "null")));
    }
    // ----------------------------------------------------------------------------------------

    // Sanity check on gtx GlobalTransaction instance -----------------------------------------
    if (!gtxStateSet.contains(GlobalTransactionState.ActiveGlobalTransaction)) {
        String message;

        if (!gtxStateSet.contains(GlobalTransactionState.GlobalTransactionInstance)) {
            message = "Unexpected system state: The GlobalTransaction object passed as the transaction "
                    + "Object argument is null.";
        } else {
            message = String
                    .format("Unexpected system state: The GlobalTransaction instance (ID:%1$s) passed as the "
                            + "transaction Object argument is inactive.", gtx.getId());
        }

        throw new IllegalTransactionStateException(message);
    }
    if (!gtxStateSet.contains(GlobalTransactionState.CurrentGlobalTransaction)) {
        /* The one possible case of the control flow reaching here is that GlobalTransaction object 
         * is manually instantiated at the outside of Spring transaction framework, and it is left active.
         * 
         * In nesting global transaction, easy to yield ConcurrentModificationException without care.
         * Nesting global transaction should be less necessary, since Slim3 isolate between (Global) 
         * transactions and cannot change that isolation setting, and this uses Slim3 GlobalTransaction, 
         * as GAE/J datastore API is not provide suspend feature as well.
         */

        GlobalTransaction currentGtx = Datastore.getCurrentGlobalTransaction();
        if (logger.isWarnEnabled()) {
            logger.warn(String.format(
                    "Though active GlobalTransaction instance (ID:%1$s) is passed as transaction "
                            + "Object argument, it's not current GlobalTransaction instance (ID:%2$s).",
                    gtx.getId(), ((currentGtx instanceof GlobalTransaction) ? currentGtx.getId() : "null")));
        }
    }
    // ----------------------------------------------------------------------------------------
    boolean exceptionUp = false;
    try {
        gtx.commit();
        slim3GtxObjMapThreadLocal.get().remove(gtx.getId());
        if (logger.isInfoEnabled()) {
            logger.info(String.format("Slim3 GlobalTransaction (ID:%1$s) committed.", gtx.getId()));
        }
    } catch (Throwable throwable) {
        /* Set rollback only flag so calling processRollback method to roll back will occur at 
         * commit method by AnnotationTransactionAspect, even for other exceptions than ones specified 
         * for rollbackFor or rollbackForClassname attributes of @Transactional annotation.
         */
        defaultTransactionStatus.setRollbackOnly();

        exceptionUp = true;

        String message = String.format("Slim3 GlobalTransaction (ID:%1$s) failed on commit.", gtx.getId());
        if ((throwable instanceof ConcurrentModificationException)
                || (throwable instanceof DeadlineExceededException)) {
            /* Slim3 should have already rolled back automatically on either
             * ConcurrentModificationException or DeadlineExceededException.
             * 
             * About DeadlineExceededException case: It seems like no harm
             * will be made even active global transaction at
             * DeadlineExceededException case left behind. As looking
             * briefly through the Slim3 source codes, the locks by that
             * global transaction seems to be released while it rolls back
             * by DatastoreFilter, and itself seem to be removed from
             * TheadLocal stack of the global transactions. So, it won't be
             * returned by such Datastore.getCurrentGlobalTransaction()
             * method. See at
             * http://groups.google.com/group/slim3-user/browse_frm
             * /thread/e3d47d8f28c8e8d3
             * /9e43553f3b56d1f2?tvc=1#9e43553f3b56d1f2 If it turns out
             * opposite, then that active global transaction can be cleared
             * some how at here for DeadlineExceededException case.
             */

            message = String.format("Slim3 GlobalTransaction (ID:%1$s) failed on commit. %n"
                    + "Slim3 must have already rolled back automatically behind "
                    + "Spring transaction framework.", gtx.getId());
        }

        throw new TransactionSystemException(message, throwable);
    } finally {
        if (gtx.isActive()) {
            if (exceptionUp) {
                if (logger.isInfoEnabled()) {
                    logger.info(String.format(
                            "GlobalTransaction instance (ID:%1$s) remains active after exception "
                                    + "durring commit attempt. That GlobalTransaction instance has not "
                                    + "been removed yet from slim3GtxObjMapThreadLocal member field.",
                            gtx.getId(), this.getClass().getName()));
                }
            } else {
                if (logger.isWarnEnabled()) {
                    logger.warn(String.format(
                            "Unexpected system state: GlobalTransaction instance (ID:%1$s) "
                                    + "remains active even after commit attempt. That GlobalTransaction "
                                    + "instance was removed from slim3GtxObjMapThreadLocal member field.",
                            gtx.getId(), this.getClass().getName()));
                }
            }
        }
    }
}

From source file:com.newmainsoftech.spray.slingong.datastore.Slim3PlatformTransactionManagerTest.java

protected void verifyRollbackProcess(boolean readOnlyEnabled, boolean roolBackOnlyEnabled,
        boolean debugEnabled) {
    // public final void rollback(TransactionStatus status)
    // private void processRollback(DefaultTransactionStatus status)
    // protected final void triggerBeforeCompletion(DefaultTransactionStatus status)

    ArgumentCaptor<DefaultTransactionStatus> defaultTransactionStatusArgumentCaptor = ArgumentCaptor
            .forClass(DefaultTransactionStatus.class);
    mockedSlim3TxMangerInOrder.verify(slim3PlatformTransactionManager, Mockito.times(1))
            .doRollback(defaultTransactionStatusArgumentCaptor.capture());
    DefaultTransactionStatus defaultTransactionStatus = defaultTransactionStatusArgumentCaptor.getValue();
    Assert.assertTrue(defaultTransactionStatus.getTransaction() instanceof GlobalTransaction);
    GlobalTransaction gtx = (GlobalTransaction) defaultTransactionStatus.getTransaction();
    Assert.assertTrue(defaultTransactionStatus.isNewTransaction());
    Assert.assertTrue(defaultTransactionStatus.isCompleted()); // Should be true since actually transaction has already been finished
    Assert.assertEquals(readOnlyEnabled, defaultTransactionStatus.isReadOnly());
    Assert.assertEquals(roolBackOnlyEnabled, defaultTransactionStatus.isRollbackOnly());
    /* If defaultTransactionStatus.isRollbackOnly() returns true, then either 
     * its isGlobalRollbackOnly() or its isLocalRollbackOnly() returns true.
     *///  w  ww  . j a v a2s.co  m
    if (defaultTransactionStatus.isRollbackOnly() && logger.isDebugEnabled()) {
        logger.debug("defaultTransactionStatus.isGlobalRollbackOnly() = "
                + defaultTransactionStatus.isGlobalRollbackOnly());
        logger.debug("defaultTransactionStatus.isLocalRollbackOnly() = "
                + defaultTransactionStatus.isLocalRollbackOnly());
    }
    Assert.assertEquals(debugEnabled, defaultTransactionStatus.isDebug());
    Assert.assertFalse(defaultTransactionStatus.isTransactionSavepointManager());
    Assert.assertTrue(defaultTransactionStatus.isNewSynchronization());

    mockedSlim3TxMangerInOrder.verify(slim3PlatformTransactionManager, Mockito.times(1))
            .getGlobalTransactionStates(Mockito.eq(gtx));

    // private void triggerAfterCompletion(DefaultTransactionStatus status, int completionStatus)
    // private void cleanupAfterCompletion(DefaultTransactionStatus status)
    // protected void doCleanupAfterCompletion(Object transaction)

}