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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/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)
{
for(SequenceSet::RangeIterator i = acked.rangesBegin(); i != acked.rangesEnd(); ++i)
ranges.push_back(DeliveryRecord::findRange(unacked, i->first(), i->last()));
}
void TxAccept::each(boost::function<void(DeliveryRecord&)> f) {
for(AckRanges::iterator i = ranges.begin(); i != ranges.end(); ++i)
for_each(i->start, i->end, f);
}
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 (!ranges.empty()) {
DeliveryRecords::iterator begin = ranges.front().start;
DeliveryRecords::iterator end = ranges.back().end;
DeliveryRecords::iterator removed =
remove_if(begin, end, mem_fun_ref(&DeliveryRecord::isRedundant));
unacked.erase(removed, 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() {}
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