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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/messaging/amqp/ReceiverContext.h"
#include "qpid/messaging/amqp/AddressHelper.h"
#include "qpid/messaging/Duration.h"
#include "qpid/messaging/Message.h"
#include "qpid/amqp/descriptors.h"
extern "C" {
#include <proton/engine.h>
}
namespace qpid {
namespace messaging {
namespace amqp {
//TODO: proper conversion to wide string for address
ReceiverContext::ReceiverContext(pn_session_t* session, const std::string& n, const qpid::messaging::Address& a)
: name(n),
address(a),
receiver(pn_receiver(session, name.c_str())),
capacity(0) {}
ReceiverContext::~ReceiverContext()
{
pn_link_free(receiver);
}
void ReceiverContext::setCapacity(uint32_t c)
{
if (c != capacity) {
//stop
capacity = c;
//reissue credit
}
}
uint32_t ReceiverContext::getCapacity()
{
return capacity;
}
uint32_t ReceiverContext::getAvailable()
{
uint32_t count(0);
for (pn_delivery_t* d = pn_unsettled_head(receiver); d; d = pn_unsettled_next(d)) {
++count;
if (d == pn_link_current(receiver)) break;
}
return count;
}
uint32_t ReceiverContext::getUnsettled()
{
uint32_t count(0);
for (pn_delivery_t* d = pn_unsettled_head(receiver); d; d = pn_unsettled_next(d)) {
++count;
}
return count;
}
void ReceiverContext::close()
{
}
const std::string& ReceiverContext::getName() const
{
return name;
}
const std::string& ReceiverContext::getSource() const
{
return address.getName();
}
namespace {
pn_bytes_t convert(const std::string& s)
{
pn_bytes_t result;
result.start = const_cast<char*>(s.data());
result.size = s.size();
return result;
}
bool hasWildcards(const std::string& key)
{
return key.find('*') != std::string::npos || key.find('#') != std::string::npos;
}
uint64_t getFilterDescriptor(const std::string& key)
{
return hasWildcards(key) ? qpid::amqp::filters::LEGACY_TOPIC_FILTER_CODE : qpid::amqp::filters::LEGACY_DIRECT_FILTER_CODE;
}
}
void ReceiverContext::configure() const
{
configure(pn_link_source(receiver));
}
void ReceiverContext::configure(pn_terminus_t* source) const
{
pn_terminus_set_address(source, address.getName().c_str());
//dynamic create:
AddressHelper helper(address);
if (helper.createEnabled(AddressHelper::FOR_RECEIVER)) {
helper.setNodeProperties(source);
}
if (!address.getSubject().empty()) {
//filter:
pn_data_t* filter = pn_terminus_filter(source);
pn_data_put_map(filter);
pn_data_enter(filter);
pn_data_put_symbol(filter, convert("subject"));
//TODO: At present inserting described values into the map doesn't seem to work; correct this once resolved
//pn_data_put_described(filter);
//pn_data_enter(filter);
//pn_data_put_ulong(filter, getFilterDescriptor(address.getSubject()));
pn_data_put_string(filter, convert(address.getSubject()));
//pn_data_exit(filter);
pn_data_exit(filter);
}
}
bool ReceiverContext::isClosed() const
{
return false;//TODO
}
}}} // namespace qpid::messaging::amqp
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