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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/TxBuffer.h"
#include "qpid/log/Statement.h"
#include <boost/mem_fn.hpp>
#include <boost/bind.hpp>
using boost::mem_fn;
using namespace qpid::broker;
bool TxBuffer::prepare(TransactionContext* const ctxt)
{
for(op_iterator i = ops.begin(); i < ops.end(); i++){
if(!(*i)->prepare(ctxt)){
return false;
}
}
return true;
}
void TxBuffer::commit()
{
std::for_each(ops.begin(), ops.end(), mem_fn(&TxOp::commit));
ops.clear();
}
void TxBuffer::rollback()
{
std::for_each(ops.begin(), ops.end(), mem_fn(&TxOp::rollback));
ops.clear();
}
void TxBuffer::enlist(TxOp::shared_ptr op)
{
ops.push_back(op);
}
bool TxBuffer::commitLocal(TransactionalStore* const store)
{
if (!store) return false;
try {
std::auto_ptr<TransactionContext> ctxt = store->begin();
if (prepare(ctxt.get())) {
store->commit(*ctxt);
commit();
return true;
} else {
store->abort(*ctxt);
rollback();
return false;
}
} catch (std::exception& e) {
QPID_LOG(error, "Commit failed with exception: " << e.what());
} catch (...) {
QPID_LOG(error, "Commit failed with unknown exception");
}
return false;
}
void TxBuffer::accept(TxOpConstVisitor& v) const {
std::for_each(ops.begin(), ops.end(), boost::bind(&TxOp::accept, _1, boost::ref(v)));
}
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