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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 <QueueRegistry.h>
#include <SessionHandlerImpl.h>
#include <sstream>
#include <assert.h>
using namespace qpid::broker;
using namespace qpid::sys;
QueueRegistry::QueueRegistry(MessageStore* const _store) : counter(1), store(_store){}
QueueRegistry::~QueueRegistry(){}
std::pair<Queue::shared_ptr, bool>
QueueRegistry::declare(const string& declareName, bool durable,
u_int32_t autoDelete, const ConnectionToken* owner)
{
Mutex::ScopedLock locker(lock);
string name = declareName.empty() ? generateName() : declareName;
assert(!name.empty());
QueueMap::iterator i = queues.find(name);
if (i == queues.end()) {
Queue::shared_ptr queue(new Queue(name, autoDelete, durable ? store : 0, owner));
queues[name] = queue;
return std::pair<Queue::shared_ptr, bool>(queue, true);
} else {
return std::pair<Queue::shared_ptr, bool>(i->second, false);
}
}
void QueueRegistry::destroy(const string& name){
Mutex::ScopedLock locker(lock);
queues.erase(name);
}
Queue::shared_ptr QueueRegistry::find(const string& name){
Mutex::ScopedLock locker(lock);
QueueMap::iterator i = queues.find(name);
if (i == queues.end()) {
return Queue::shared_ptr();
} else {
return i->second;
}
}
string QueueRegistry::generateName(){
string name;
do {
std::stringstream ss;
ss << "tmp_" << counter++;
name = ss.str();
// Thread safety: Private function, only called with lock held
// so this is OK.
} while(queues.find(name) != queues.end());
return name;
}
MessageStore* const QueueRegistry::getStore() const {
return store;
}
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