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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/FanOutExchange.h"
#include <algorithm>
using namespace qpid::broker;
using namespace qpid::framing;
using namespace qpid::sys;
namespace _qmf = qmf::org::apache::qpid::broker;
namespace
{
const std::string qpidFedOp("qpid.fed.op");
const std::string qpidFedTags("qpid.fed.tags");
const std::string qpidFedOrigin("qpid.fed.origin");
const std::string fedOpBind("B");
const std::string fedOpUnbind("U");
const std::string fedOpReorigin("R");
const std::string fedOpHello("H");
}
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)
{
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, FieldTable(), fedOrigin));
if (bindings.add_unless(binding, MatchQueue(queue))) {
propagate = fedBinding.addOrigin(fedOrigin);
if (mgmtExchange != 0) {
mgmtExchange->inc_bindingCount();
((_qmf::Queue*) queue->GetManagementObject())->inc_bindingCount();
}
} else {
return false;
}
} else if (fedOp == fedOpUnbind) {
propagate = fedBinding.delOrigin(fedOrigin);
if (fedBinding.count() == 0)
unbind(queue, "", 0);
} 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*/)
{
bool propagate = false;
if (bindings.remove_if(MatchQueue(queue))) {
propagate = fedBinding.delOrigin();
if (mgmtExchange != 0) {
mgmtExchange->dec_bindingCount();
((_qmf::Queue*) queue->GetManagementObject())->dec_bindingCount();
}
} else {
return false;
}
if (propagate)
propagateFedOp(string(), string(), fedOpUnbind, string());
return true;
}
void FanOutExchange::route(Deliverable& msg, const string& /*routingKey*/, const FieldTable* /*args*/){
PreRoute pr(msg, this);
uint32_t count(0);
BindingsArray::ConstPtr p = bindings.snapshot();
if (p.get()){
for(std::vector<Binding::shared_ptr>::const_iterator i = p->begin(); i != p->end(); ++i, count++){
msg.deliverTo((*i)->queue);
if ((*i)->mgmtBinding != 0)
(*i)->mgmtBinding->inc_msgMatched ();
}
}
if (mgmtExchange != 0)
{
mgmtExchange->inc_msgReceives ();
mgmtExchange->inc_byteReceives (msg.contentSize ());
if (count == 0)
{
mgmtExchange->inc_msgDrops ();
mgmtExchange->inc_byteDrops (msg.contentSize ());
}
else
{
mgmtExchange->inc_msgRoutes (count);
mgmtExchange->inc_byteRoutes (count * msg.contentSize ());
}
}
}
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");
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