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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/Broker.h"
#include "qpid/broker/ExchangeRegistry.h"
#include "qpid/broker/DirectExchange.h"
#include "qpid/broker/FanOutExchange.h"
#include "qpid/broker/HeadersExchange.h"
#include "qpid/broker/TopicExchange.h"
#include "qpid/broker/Link.h"
#include "qpid/management/ManagementDirectExchange.h"
#include "qpid/management/ManagementTopicExchange.h"
#include "qpid/framing/reply_exceptions.h"
using namespace qpid::broker;
using namespace qpid::sys;
using std::pair;
using std::string;
using qpid::framing::FieldTable;
pair<Exchange::shared_ptr, bool> ExchangeRegistry::declare(const string& name, const string& type){
return declare(name, type, false, FieldTable());
}
pair<Exchange::shared_ptr, bool> ExchangeRegistry::declare(const string& name, const string& type,
bool durable, const FieldTable& args){
Exchange::shared_ptr exchange;
std::pair<Exchange::shared_ptr, bool> result;
{
RWlock::ScopedWlock locker(lock);
ExchangeMap::iterator i = exchanges.find(name);
if (i == exchanges.end()) {
if (type == TopicExchange::typeName){
exchange = Exchange::shared_ptr(new TopicExchange(name, durable, args, parent, broker));
}else if(type == DirectExchange::typeName){
exchange = Exchange::shared_ptr(new DirectExchange(name, durable, args, parent, broker));
}else if(type == FanOutExchange::typeName){
exchange = Exchange::shared_ptr(new FanOutExchange(name, durable, args, parent, broker));
}else if (type == HeadersExchange::typeName) {
exchange = Exchange::shared_ptr(new HeadersExchange(name, durable, args, parent, broker));
}else if (type == ManagementDirectExchange::typeName) {
exchange = Exchange::shared_ptr(new ManagementDirectExchange(name, durable, args, parent, broker));
}else if (type == ManagementTopicExchange::typeName) {
exchange = Exchange::shared_ptr(new ManagementTopicExchange(name, durable, args, parent, broker));
}else if (type == Link::exchangeTypeName) {
exchange = Link::linkExchangeFactory(name);
}else{
FunctionMap::iterator i = factory.find(type);
if (i == factory.end()) {
throw UnknownExchangeTypeException();
} else {
exchange = i->second(name, durable, args, parent, broker);
}
}
exchanges[name] = exchange;
result = std::pair<Exchange::shared_ptr, bool>(exchange, true);
} else {
result = std::pair<Exchange::shared_ptr, bool>(i->second, false);
}
}
if (broker && exchange) broker->getConfigurationObservers().exchangeCreate(exchange);
return result;
}
void ExchangeRegistry::destroy(const string& name){
if (name.empty() ||
(name.find("amq.") == 0 &&
(name == "amq.direct" || name == "amq.fanout" || name == "amq.topic" || name == "amq.match")) ||
name == "qpid.management")
throw framing::NotAllowedException(QPID_MSG("Cannot delete default exchange: '" << name << "'"));
Exchange::shared_ptr exchange;
{
RWlock::ScopedWlock locker(lock);
ExchangeMap::iterator i = exchanges.find(name);
if (i != exchanges.end()) {
exchange = i->second;
i->second->destroy();
exchanges.erase(i);
}
}
if (broker && exchange) broker->getConfigurationObservers().exchangeDestroy(exchange);
}
Exchange::shared_ptr ExchangeRegistry::find(const string& name){
RWlock::ScopedRlock locker(lock);
ExchangeMap::iterator i = exchanges.find(name);
if (i == exchanges.end())
return Exchange::shared_ptr();
else
return i->second;
}
Exchange::shared_ptr ExchangeRegistry::get(const string& name) {
Exchange::shared_ptr ex = find(name);
if (!ex) throw framing::NotFoundException(QPID_MSG("Exchange not found: "<<name));
return ex;
}
bool ExchangeRegistry::registerExchange(const Exchange::shared_ptr& ex) {
return exchanges.insert(ExchangeMap::value_type(ex->getName(), ex)).second;
}
void ExchangeRegistry::registerType(const std::string& type, FactoryFunction f)
{
factory[type] = f;
}
namespace
{
const std::string empty;
}
Exchange::shared_ptr ExchangeRegistry::getDefault()
{
return get(empty);
}
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