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/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed 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 <boost/program_options/value_semantic.hpp>
#include "qpid/broker/Broker.h"
#include "qpid/cluster/Cluster.h"
#include "qpid/Plugin.h"
#include "qpid/Options.h"
#include "qpid/shared_ptr.h"
#include <boost/optional.hpp>
#include <boost/utility/in_place_factory.hpp>
namespace qpid {
namespace cluster {
using namespace std;
struct ClusterOptions : public Options {
string name;
string url;
ClusterOptions() : Options("Cluster Options") {
addOptions()
("cluster-name", optValue(name, "NAME"), "Name of cluster to join")
("cluster-url", optValue(url,"URL"),
"URL of this broker, advertized to the cluster.\n"
"Defaults to a URL listing all the local IP addresses\n");
}
Url getUrl(uint16_t port) const {
if (url.empty()) return Url::getIpAddressesUrl(port);
return Url(url);
}
};
struct ClusterPlugin : public Plugin {
ClusterOptions options;
boost::optional<Cluster> cluster;
Options* getOptions() { return &options; }
void earlyInitialize(Plugin::Target&) {}
void initialize(Plugin::Target& target) {
broker::Broker* broker = dynamic_cast<broker::Broker*>(&target);
// Only provide to a Broker, and only if the --cluster config is set.
if (broker && !options.name.empty()) {
assert(!cluster); // A process can only belong to one cluster.
cluster = boost::in_place(options.name,
options.getUrl(broker->getPort()),
boost::ref(*broker));
broker->getPreviewSessionManager().add(cluster->getObserver());
}
}
};
static ClusterPlugin instance; // Static initialization.
}} // namespace qpid::cluster
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