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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "map_listener.h"
#include "map_source.h"
#include "proxy_map_source.h"
#include <map>
#include <vector>
namespace slobrok {
/**
* Listens to events from multiple maps and publishes the union of them.
**/
class UnionServiceMap : public ProxyMapSource
{
private:
struct CountedSpec {
vespalib::string spec;
size_t count;
CountedSpec(const vespalib::string &spec_in,
size_t count_in) noexcept
: spec(spec_in),
count(count_in)
{
}
};
using Mappings = std::vector<CountedSpec>;
std::map<vespalib::string, Mappings> _mappings;
public:
UnionServiceMap();
virtual ~UnionServiceMap();
ServiceMappingList currentConsensus() const;
bool wouldConflict(const ServiceMapping &mapping) const;
void add(const ServiceMapping &mapping) override;
void remove(const ServiceMapping &mapping) override;
void update(const ServiceMapping &old_mapping,
const ServiceMapping &new_mapping) override;
};
} // namespace slobrok
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