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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 <vespa/config/common/types.h>
#include <memory>
#include <climits>
namespace vespalib::slime { struct Cursor; }
namespace config::protocol { struct Payload; }
namespace config {
typedef std::shared_ptr<const protocol::Payload> PayloadPtr;
/**
* Internal representation of a config value. DO NOT USE THIS!!!!! Use readers
* if you want to instantiate config objects directly.
*/
class ConfigValue {
public:
explicit ConfigValue(StringVector lines);
ConfigValue(StringVector lines, const vespalib::string & xxhash);
ConfigValue(PayloadPtr data, const vespalib::string & xxhash);
ConfigValue();
ConfigValue(ConfigValue &&) noexcept = default;
ConfigValue & operator = (ConfigValue &&) noexcept = default;
ConfigValue(const ConfigValue &);
ConfigValue & operator = (const ConfigValue &);
~ConfigValue();
int operator==(const ConfigValue & rhs) const;
int operator!=(const ConfigValue & rhs) const;
size_t numLines() const { return _lines.size(); }
const vespalib::string & getLine(int i) const { return _lines.at(i); }
const StringVector & getLines() const { return _lines; }
StringVector getLegacyFormat() const;
vespalib::string asJson() const;
const vespalib::string& getXxhash64() const { return _xxhash64; }
void serializeV1(::vespalib::slime::Cursor & cursor) const;
void serializeV2(::vespalib::slime::Cursor & cursor) const;
template <typename ConfigType>
std::unique_ptr<ConfigType> newInstance() const;
private:
PayloadPtr _payload;
StringVector _lines;
vespalib::string _xxhash64;
};
} //namespace config
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