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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/log/Statement.h"
#include "qpid/broker/FanOutExchange.h"
#include "qpid/broker/FedOps.h"
#include <algorithm>
using namespace qpid::broker;
using std::string;
using namespace qpid::framing;
using namespace qpid::sys;
namespace _qmf = qmf::org::apache::qpid::broker;
FanOutExchange::FanOutExchange(const std::string& _name, Manageable* _parent, Broker* b) :
Exchange(_name, _parent, b)
{
if (mgmtExchange != 0)
mgmtExchange->set_type (typeName);
}
FanOutExchange::FanOutExchange(const std::string& _name, bool _durable,
const FieldTable& _args, Manageable* _parent, Broker* b) :
Exchange(_name, _durable, _args, _parent, b)
{
if (mgmtExchange != 0)
mgmtExchange->set_type (typeName);
}
bool FanOutExchange::bind(Queue::shared_ptr queue, const string& /*key*/, const FieldTable* args, AsyncStore* const store)
{
string fedOp(args ? args->getAsString(qpidFedOp) : fedOpBind);
string fedTags(args ? args->getAsString(qpidFedTags) : "");
string fedOrigin(args ? args->getAsString(qpidFedOrigin) : "");
bool propagate = false;
if (args == 0 || fedOp.empty() || fedOp == fedOpBind) {
Binding::shared_ptr binding (new Binding ("", queue, this, args ? *args : FieldTable(), fedOrigin));
if (bindings.add_unless(binding, MatchQueue(queue))) {
binding->startManagement();
propagate = fedBinding.addOrigin(queue->getName(), fedOrigin);
if (mgmtExchange != 0) {
mgmtExchange->inc_bindingCount();
}
} else {
// queue already present - still need to track fedOrigin
fedBinding.addOrigin(queue->getName(), fedOrigin);
return false;
}
} else if (fedOp == fedOpUnbind) {
propagate = fedBinding.delOrigin(queue->getName(), fedOrigin);
if (fedBinding.countFedBindings(queue->getName()) == 0)
unbind(queue, "", args, store);
} else if (fedOp == fedOpReorigin) {
if (fedBinding.hasLocal()) {
propagateFedOp(string(), string(), fedOpBind, string());
}
}
routeIVE();
if (propagate)
propagateFedOp(string(), fedTags, fedOp, fedOrigin);
return true;
}
bool FanOutExchange::unbind(Queue::shared_ptr queue, const string& /*key*/, const FieldTable* args, AsyncStore* const /*store*/)
{
string fedOrigin(args ? args->getAsString(qpidFedOrigin) : "");
bool propagate = false;
QPID_LOG(debug, "Unbinding queue " << queue->getName()
<< " from exchange " << getName() << " origin=" << fedOrigin << ")" );
if (bindings.remove_if(MatchQueue(queue))) {
propagate = fedBinding.delOrigin(queue->getName(), fedOrigin);
if (mgmtExchange != 0) {
mgmtExchange->dec_bindingCount();
}
} else {
return false;
}
if (propagate)
propagateFedOp(string(), string(), fedOpUnbind, string());
return true;
}
void FanOutExchange::route(Deliverable& msg)
{
PreRoute pr(msg, this);
doRoute(msg, bindings.snapshot());
}
bool FanOutExchange::isBound(Queue::shared_ptr queue, const string* const, const FieldTable* const)
{
BindingsArray::ConstPtr ptr = bindings.snapshot();
return ptr && std::find_if(ptr->begin(), ptr->end(), MatchQueue(queue)) != ptr->end();
}
FanOutExchange::~FanOutExchange() {}
const std::string FanOutExchange::typeName("fanout");
// DataSource interface - used to write persistence data to async store
// TODO: kpvdr: implement
uint64_t FanOutExchange::getSize() {
return 0;
}
void FanOutExchange::write(char* /*target*/) {}
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