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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/config-sentinel.h>
#include <vespa/config-model.h>
#include <vespa/config/subscription/configsubscriber.h>
using cloud::config::SentinelConfig;
namespace config::sentinel {
/**
* Handles config subscription and has a snapshot of current config.
**/
class ConfigOwner {
private:
config::ConfigSubscriber _subscriber;
config::ConfigHandle<SentinelConfig>::UP _sentinelHandle;
int64_t _currGeneration = -1;
std::unique_ptr<SentinelConfig> _currConfig;
ConfigOwner(const ConfigOwner&) = delete;
ConfigOwner& operator =(const ConfigOwner&) = delete;
void doConfigure();
public:
ConfigOwner();
virtual ~ConfigOwner();
void subscribe(const std::string & configId, std::chrono::milliseconds timeout);
bool checkForConfigUpdate();
bool hasConfig() const { return _currConfig.get() != nullptr; }
const SentinelConfig& getConfig() const { return *_currConfig; }
int64_t getGeneration() const { return _currGeneration; }
};
}
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