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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "asyncinitializationpolicy.h"
#include <vespa/config-slobroks.h>
#include <vespa/vdslib/distribution/distribution.h>
#include <vespa/slobrok/imirrorapi.h>
#include <vespa/documentapi/common.h>
#include <vespa/config/subscription/sourcespec.h>
class FRT_Supervisor;
namespace documentapi {
/**
Super class for routing policies that allow the user to specify external slobrok lists,
either by supplying external config servers or the slobrok list directly.
*/
class ExternSlobrokPolicy : public AsyncInitializationPolicy
{
protected:
bool _firstTry;
config::ServerSpec::HostSpecList _configSources;
vespalib::Lock _lock;
std::unique_ptr<FRT_Supervisor> _orb;
std::unique_ptr<slobrok::api::IMirrorAPI> _mirror;
std::vector<std::string> _slobroks;
string _slobrokConfigId;
public:
ExternSlobrokPolicy(const std::map<string, string>& params);
~ExternSlobrokPolicy();
/**
* @return a pointer to the slobrok mirror owned by this policy, if any.
* If the policy uses the default mirror API, NULL is returned.
*/
const slobrok::api::IMirrorAPI* getMirror() const { return _mirror.get(); }
slobrok::api::IMirrorAPI::SpecList lookup(mbus::RoutingContext &context, const string& pattern);
string init() override;
};
}
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