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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/DeliveryRecord.h"
#include "qpid/broker/DeliverableMessage.h"
#include "qpid/broker/SemanticState.h"
#include "qpid/broker/Exchange.h"
#include "qpid/broker/Queue.h"
#include "qpid/log/Statement.h"
#include "qpid/framing/FrameHandler.h"
#include "qpid/framing/MessageTransferBody.h"
using namespace qpid;
using namespace qpid::broker;
using std::string;
DeliveryRecord::DeliveryRecord(const QueuedMessage& _msg,
const Queue::shared_ptr& _queue,
const std::string& _tag,
bool _acquired,
bool accepted,
bool _windowing,
uint32_t _credit) : msg(_msg),
queue(_queue),
tag(_tag),
acquired(_acquired),
acceptExpected(!accepted),
cancelled(false),
completed(false),
ended(accepted && acquired),
windowing(_windowing),
credit(msg.payload ? msg.payload->getRequiredCredit() : _credit)
{}
bool DeliveryRecord::setEnded()
{
ended = true;
//reset msg pointer, don't need to hold on to it anymore
msg.payload = boost::intrusive_ptr<Message>();
QPID_LOG(debug, "DeliveryRecord::setEnded() id=" << id);
return isRedundant();
}
void DeliveryRecord::redeliver(SemanticState* const session) {
if (!ended) {
if(cancelled){
//if subscription was cancelled, requeue it (waiting for
//final confirmation for AMQP WG on this case)
requeue();
}else{
msg.payload->redeliver();//mark as redelivered
session->deliver(*this, false);
}
}
}
void DeliveryRecord::deliver(framing::FrameHandler& h, DeliveryId deliveryId, uint16_t framesize)
{
id = deliveryId;
if (msg.payload->getRedelivered()){
msg.payload->setRedelivered();
}
msg.payload->adjustTtl();
framing::AMQFrame method((framing::MessageTransferBody(framing::ProtocolVersion(), tag, acceptExpected ? 0 : 1, acquired ? 0 : 1)));
method.setEof(false);
h.handle(method);
msg.payload->sendHeader(h, framesize);
msg.payload->sendContent(*queue, h, framesize);
}
void DeliveryRecord::requeue() const
{
if (acquired && !ended) {
msg.payload->redeliver();
queue->requeue(msg);
}
}
void DeliveryRecord::release(bool setRedelivered)
{
if (acquired && !ended) {
if (setRedelivered) msg.payload->redeliver();
queue->requeue(msg);
acquired = false;
setEnded();
} else {
QPID_LOG(debug, "Ignoring release for " << id << " acquired=" << acquired << ", ended =" << ended);
}
}
void DeliveryRecord::complete() {
completed = true;
}
bool DeliveryRecord::accept(TransactionContext* ctxt) {
if (acquired && !ended) {
queue->dequeue(ctxt, msg);
setEnded();
QPID_LOG(debug, "Accepted " << id);
}
return isRedundant();
}
void DeliveryRecord::dequeue(TransactionContext* ctxt) const{
if (acquired && !ended) {
queue->dequeue(ctxt, msg);
}
}
void DeliveryRecord::committed() const{
queue->dequeueCommitted(msg);
}
void DeliveryRecord::reject()
{
if (acquired && !ended) {
Exchange::shared_ptr alternate = queue->getAlternateExchange();
if (alternate) {
DeliverableMessage delivery(msg.payload);
alternate->routeWithAlternate(delivery);
QPID_LOG(info, "Routed rejected message from " << queue->getName() << " to "
<< alternate->getName());
} else {
//just drop it
QPID_LOG(info, "Dropping rejected message from " << queue->getName());
}
queue->countRejected();
dequeue();
setEnded();
}
}
uint32_t DeliveryRecord::getCredit() const
{
return credit;
}
void DeliveryRecord::acquire(DeliveryIds& results) {
if (queue->acquire(msg, tag)) {
acquired = true;
results.push_back(id);
if (!acceptExpected) {
if (ended) { QPID_LOG(error, "Can't dequeue ended message"); }
else { queue->dequeue(0, msg); setEnded(); }
}
} else {
QPID_LOG(info, "Message already acquired " << id.getValue());
}
}
void DeliveryRecord::cancel(const std::string& cancelledTag)
{
if (tag == cancelledTag)
cancelled = true;
}
AckRange DeliveryRecord::findRange(DeliveryRecords& records, DeliveryId first, DeliveryId last)
{
DeliveryRecords::iterator start = lower_bound(records.begin(), records.end(), first);
// Find end - position it just after the last record in range
DeliveryRecords::iterator end = lower_bound(records.begin(), records.end(), last);
if (end != records.end() && end->getId() == last) ++end;
return AckRange(start, end);
}
namespace qpid {
namespace broker {
std::ostream& operator<<(std::ostream& out, const DeliveryRecord& r)
{
out << "{" << "id=" << r.id.getValue();
out << ", tag=" << r.tag << "}";
out << ", queue=" << r.queue->getName() << "}";
return out;
}
}}
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