Examples of org.apache.qpid.server.txn.ServerTransaction

org.apache.qpid.server.txn.ServerTransaction
The ServerTransaction interface allows a set enqueue/dequeue operations to be performed against the transaction belonging the underlying TransactionLog object. Typically all ServerTransaction implementations decide if a message should be enlisted into a store transaction by examining the durable property of the queue, and the persistence property of the message. A caller may register a list of post transaction Actions to be performed on commit() (or rollback()).


    private void discardEntry(final QueueEntry entry)
    {
        if(entry.acquire())
        {
            ServerTransaction txn = new AutoCommitTransaction(getQueue().getVirtualHost().getMessageStore());
            txn.dequeue(entry.getQueue(),entry.getMessage(),
                                    new ServerTransaction.Action()
                                {
                                    @Override
                                    public void postCommit()
                                    {

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    }


    private Error discharge(Integer transactionId, boolean fail)
    {
        Error error = null;
        ServerTransaction txn = _openTransactions.get(transactionId);
        if(txn != null)
        {
            if(fail)
            {
                txn.rollback();
            }
            else
            {
                txn.commit();
            }
            _openTransactions.remove(transactionId);
        }
        else
        {

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        getVirtualHost().getSecurityManager().authorisePurge(this);


        QueueEntryIterator queueListIterator = _entries.iterator();
        long count = 0;


        ServerTransaction txn = new LocalTransaction(getVirtualHost().getMessageStore());


        while (queueListIterator.advance())
        {
            QueueEntry node = queueListIterator.getNode();
            if (node.acquire())
            {
                dequeueEntry(node, txn);
                if(++count == request)
                {
                    break;
                }
            }


        }


        txn.commit();


        return count;
    }

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        return count;
    }


    private void dequeueEntry(final QueueEntry node)
    {
        ServerTransaction txn = new AutoCommitTransaction(getVirtualHost().getMessageStore());
        dequeueEntry(node, txn);
    }

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                {
                    return false;
                }
            });


            ServerTransaction txn = new LocalTransaction(getVirtualHost().getMessageStore());




            for(final QueueEntry entry : entries)
            {
                // TODO log requeues with a post enqueue action
                int requeues = entry.routeToAlternate(null, txn);


                if(requeues == 0)
                {
                    // TODO log discard
                }
            }


            txn.commit();


            if(_alternateExchange != null)
            {
                _alternateExchange.removeReference(this);
            }

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                    transfer.setState(state);
                }
                // TODO - need to deal with failure here
                if(_acquires && _transactionId != null)
                {
                    ServerTransaction txn = _link.getTransaction(_transactionId);
                    if(txn != null)
                    {
                        txn.addPostTransactionAction(new ServerTransaction.Action(){


                            public void postCommit()
                            {
                                //To change body of implemented methods use File | Settings | File Templates.
                            }

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            {
                outcome = null;
            }




            ServerTransaction txn = _link.getTransaction(transactionId);


            if(outcome instanceof Accepted)
            {
                txn.dequeue(_queueEntry.getOwningResource(), _queueEntry.getMessage(),
                        new ServerTransaction.Action()
                        {


                            public void postCommit()
                            {
                                if(_queueEntry.isAcquiredBy(getConsumer()))
                                {
                                    _queueEntry.delete();
                                }
                            }


                            public void onRollback()
                            {


                            }
                        });
                txn.addPostTransactionAction(new ServerTransaction.Action()
                    {
                        public void postCommit()
                        {
                            //_link.getEndpoint().settle(_deliveryTag);
                            _link.getEndpoint().updateDisposition(_deliveryTag, (DeliveryState)outcome, true);
                            _link.getEndpoint().sendFlowConditional();
                        }


                        public void onRollback()
                        {
                            if(Boolean.TRUE.equals(settled))
                            {
                                final Modified modified = new Modified();
                                modified.setDeliveryFailed(true);
                                _link.getEndpoint().updateDisposition(_deliveryTag, modified, true);
                                _link.getEndpoint().sendFlowConditional();
                            }
                        }
                    });
            }
            else if(outcome instanceof Released)
            {
                txn.addPostTransactionAction(new ServerTransaction.Action()
                {
                    public void postCommit()
                    {


                        _queueEntry.release();
                        _link.getEndpoint().settle(_deliveryTag);
                    }


                    public void onRollback()
                    {
                        _link.getEndpoint().settle(_deliveryTag);
                    }
                });
            }


            else if(outcome instanceof Modified)
            {
                txn.addPostTransactionAction(new ServerTransaction.Action()
                {
                    public void postCommit()
                    {


                        _queueEntry.release();

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        if ((fromMessageId > toMessageId) || (fromMessageId < 1))
        {
            throw new OperationsException("\"From MessageId\" should be greater than 0 and less than \"To MessageId\"");
        }


        ServerTransaction txn = new LocalTransaction(_queue.getVirtualHost().getTransactionLog());
        _queue.moveMessagesToAnotherQueue(fromMessageId, toMessageId, toQueueName, txn);
        txn.commit();
    }

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        if ((fromMessageId > toMessageId) || (fromMessageId < 1))
        {
            throw new OperationsException("\"From MessageId\" should be greater than 0 and less than \"To MessageId\"");
        }


        ServerTransaction txn = new LocalTransaction(_queue.getVirtualHost().getTransactionLog());


        _queue.copyMessagesToAnotherQueue(fromMessageId, toMessageId, toQueueName, txn);


        txn.commit();




    }

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        MessageMetaData metaData = msg.headersReceived();
        StoredMessage handle = _store.addMessage(metaData);
        msg.setStoredMessage(handle);




        ServerTransaction txn = new AutoCommitTransaction(_store);


        txn.enqueue(qs, msg, new ServerTransaction.Action()
                                    {
                                        public void postCommit()
                                        {
                                            msg.enqueue(qs);
                                        }

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