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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 "Broker.h"
#include "Connection.h"
#include "DirectExchange.h"
#include "FanOutExchange.h"
#include "HeadersExchange.h"
#include "MessageStoreModule.h"
#include "NullMessageStore.h"
#include "RecoveryManagerImpl.h"
#include "TopicExchange.h"
#include "management/ManagementExchange.h"
#include "qpid/log/Statement.h"
#include "qpid/Url.h"
#include "qpid/framing/AMQFrame.h"
#include "qpid/framing/HandlerUpdater.h"
#include "qpid/framing/ProtocolInitiation.h"
#include "qpid/sys/Acceptor.h"
#include "qpid/sys/ConnectionInputHandler.h"
#include "qpid/sys/ConnectionInputHandlerFactory.h"
#include "qpid/sys/TimeoutHandler.h"
#include <boost/bind.hpp>
#include <iostream>
#include <memory>
using qpid::sys::Acceptor;
using qpid::framing::HandlerUpdater;
using qpid::framing::FrameHandler;
using qpid::framing::ChannelId;
namespace qpid {
namespace broker {
Broker::Options::Options(const std::string& name) :
qpid::Options(name),
port(TcpAddress::DEFAULT_PORT),
workerThreads(5),
maxConnections(500),
connectionBacklog(10),
store(),
stagingThreshold(5000000),
storeDir("/var"),
storeAsync(false),
storeForce(false),
enableMgmt(0),
mgmtPubInterval(10),
ack(100)
{
addOptions()
("port,p", optValue(port,"PORT"),
"Tells the broker to listen on PORT")
("worker-threads", optValue(workerThreads, "N"),
"Sets the broker thread pool size")
("max-connections", optValue(maxConnections, "N"),
"Sets the maximum allowed connections")
("connection-backlog", optValue(connectionBacklog, "N"),
"Sets the connection backlog limit for the server socket")
("staging-threshold", optValue(stagingThreshold, "N"),
"Stages messages over N bytes to disk")
("store,s", optValue(store,"LIBNAME"),
"Tells the broker to use the message store shared library LIBNAME for persistence")
("store-directory", optValue(storeDir,"DIR"),
"Store directory location for persistence.")
("store-async", optValue(storeAsync,"yes|no"),
"Use async persistence storage - if store supports it, enable AIO 0-DIRECT.")
("store-force", optValue(storeForce,"yes|no"),
"Force changing modes of store, will delete all existing data if mode is change. Be SHURE you want to do this")
("mgmt,m", optValue(enableMgmt,"yes|no"),
"Enable Management")
("mgmt-pub-interval", optValue(mgmtPubInterval, "SECONDS"),
"Management Publish Interval")
("ack", optValue(ack, "N"),
"Send ack/solicit-ack at least every N frames. 0 disables voluntary acks/solitict-ack");
}
const std::string empty;
const std::string amq_direct("amq.direct");
const std::string amq_topic("amq.topic");
const std::string amq_fanout("amq.fanout");
const std::string amq_match("amq.match");
const std::string qpid_management("qpid.management");
Broker::Broker(const Broker::Options& conf) :
config(conf),
store(createStore(conf)),
queues(store.get()),
stagingThreshold(0),
factory(*this),
dtxManager(store.get()),
sessionManager(conf.ack)
{
if(conf.enableMgmt){
managementAgent = ManagementAgent::shared_ptr (new ManagementAgent (conf.mgmtPubInterval));
queues.setManagementAgent(managementAgent);
}
exchanges.declare(empty, DirectExchange::typeName); // Default exchange.
exchanges.declare(amq_direct, DirectExchange::typeName);
exchanges.declare(amq_topic, TopicExchange::typeName);
exchanges.declare(amq_fanout, FanOutExchange::typeName);
exchanges.declare(amq_match, HeadersExchange::typeName);
if(conf.enableMgmt) {
QPID_LOG(info, "Management enabled");
exchanges.declare(qpid_management, ManagementExchange::typeName);
Exchange::shared_ptr mExchange = exchanges.get (qpid_management);
managementAgent->setExchange (mExchange);
dynamic_pointer_cast<ManagementExchange>(mExchange)->setManagmentAgent (managementAgent);
mgmtObject = ManagementObjectBroker::shared_ptr (new ManagementObjectBroker (conf));
managementAgent->addObject (dynamic_pointer_cast<ManagementObject>(mgmtObject));
// Since there is currently no support for virtual hosts, a management object
// representing the implied single virtual host is added here.
mgmtVhostObject = ManagementObjectVhost::shared_ptr (new ManagementObjectVhost (conf));
managementAgent->addObject (dynamic_pointer_cast<ManagementObject>(mgmtVhostObject));
}
else
QPID_LOG(info, "Management not enabled");
if(store.get()) {
if (!store->init(conf.storeDir, conf.storeAsync, conf.storeForce)){
throw Exception( "Existing Journal in different mode, backup/move existing data \
before changing modes. Or use --store-force yes to blow existing data away.");
}else{
RecoveryManagerImpl recoverer(queues, exchanges, dtxManager,
conf.stagingThreshold);
store->recover(recoverer);
}
}
// Initialize plugins
const Plugin::Plugins& plugins=Plugin::getPlugins();
for (Plugin::Plugins::const_iterator i = plugins.begin();
i != plugins.end();
i++)
(*i)->initialize(*this);
}
shared_ptr<Broker> Broker::create(int16_t port)
{
Options config;
config.port=port;
return create(config);
}
shared_ptr<Broker> Broker::create(const Options& opts)
{
return shared_ptr<Broker>(new Broker(opts));
}
MessageStore* Broker::createStore(const Options& config) {
if (config.store.empty())
return new NullMessageStore(false);
else
return new MessageStoreModule(config.store);
}
void Broker::run() {
getAcceptor().run(&factory);
}
void Broker::shutdown() {
if (acceptor)
acceptor->shutdown();
}
Broker::~Broker() {
shutdown();
}
int16_t Broker::getPort() const { return getAcceptor().getPort(); }
std::string Broker::getUrl() const {
return Url(TcpAddress(getAcceptor().getHost(), getPort())).str();
}
Acceptor& Broker::getAcceptor() const {
if (!acceptor) {
const_cast<Acceptor::shared_ptr&>(acceptor) =
Acceptor::create(config.port,
config.connectionBacklog,
config.workerThreads);
QPID_LOG(info, "Listening on port " << getPort());
}
return *acceptor;
}
void Broker::add(const shared_ptr<HandlerUpdater>& updater) {
QPID_LOG(debug, "Broker added HandlerUpdater");
handlerUpdaters.push_back(updater);
}
void Broker::update(ChannelId channel, FrameHandler::Chains& chains) {
for_each(handlerUpdaters.begin(), handlerUpdaters.end(),
boost::bind(&HandlerUpdater::update, _1,
channel, boost::ref(chains)));
}
}} // namespace qpid::broker
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