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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "qpid/broker/TxAccept.h"
#include "qpid/broker/TransactionObserver.h"
#include "qpid/broker/Queue.h"
#include "qpid/log/Statement.h"
using std::bind1st;
using std::bind2nd;
using std::mem_fun_ref;
using namespace qpid::broker;
using qpid::framing::SequenceSet;
using qpid::framing::SequenceNumber;
TxAccept::TxAccept(const SequenceSet& _acked, DeliveryRecords& _unacked) :
acked(_acked), unacked(_unacked)
{}
void TxAccept::each(boost::function<void(DeliveryRecord&)> f) {
DeliveryRecords::iterator dr = unacked.begin();
SequenceSet::iterator seq = acked.begin();
while(dr != unacked.end() && seq != acked.end()) {
if (dr->getId() == *seq) {
f(*dr);
++dr;
++seq;
}
else if (dr->getId() < *seq) ++dr;
else if (dr->getId() > *seq) ++seq;
}
}
bool TxAccept::prepare(TransactionContext* ctxt) throw()
{
try{
each(bind(&DeliveryRecord::dequeue, _1, ctxt));
return true;
}catch(const std::exception& e){
QPID_LOG(error, "Failed to prepare: " << e.what());
return false;
}catch(...){
QPID_LOG(error, "Failed to prepare");
return false;
}
}
void TxAccept::commit() throw()
{
try {
each(bind(&DeliveryRecord::committed, _1));
each(bind(&DeliveryRecord::setEnded, _1));
//now remove if isRedundant():
if (!acked.empty()) {
AckRange r = DeliveryRecord::findRange(unacked, acked.front(), acked.back());
DeliveryRecords::iterator removed =
remove_if(r.start, r.end, mem_fun_ref(&DeliveryRecord::isRedundant));
unacked.erase(removed, r.end);
}
} catch (const std::exception& e) {
QPID_LOG(error, "Failed to commit: " << e.what());
} catch(...) {
QPID_LOG(error, "Failed to commit (unknown error)");
}
}
void TxAccept::rollback() throw() {}
namespace {
void callObserverDR(boost::shared_ptr<TransactionObserver> observer, DeliveryRecord& dr) {
observer->dequeue(dr.getQueue(), dr.getMessageId(), dr.getReplicationId());
}
} // namespace
void TxAccept::callObserver(const ObserverPtr& observer) {
each(boost::bind(&callObserverDR, observer, _1));
}
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