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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* @class vdslib::NodeType
*
* Sets what type of node we're talking about. This class exist so we don't need
* to duplicate all functions for storage and distributor nodes in states, and
* to avoid using a bool for type. This also makes it more easily expandable
* with other node types.
*/
#pragma once
#include <vespa/vespalib/stllike/string.h>
namespace vespalib {
class asciistream;
}
namespace storage::lib {
class NodeType {
public:
NodeType(const NodeType &) = delete;
NodeType & operator = (const NodeType &) = delete;
NodeType(NodeType &&) = delete;
NodeType & operator =(NodeType &&) = delete;
enum class Type : uint8_t {STORAGE = 0, DISTRIBUTOR = 1, UNKNOWN = 2};
static const NodeType DISTRIBUTOR;
static const NodeType STORAGE;
/** Throws vespalib::IllegalArgumentException if invalid state given. */
static const NodeType& get(vespalib::stringref serialized);
static const NodeType& get(Type type) noexcept;
const vespalib::string& serialize() const noexcept { return _name; }
Type getType() const noexcept { return _type; }
operator uint16_t() const noexcept { return static_cast<uint16_t>(_type); }
const vespalib::string & toString() const noexcept { return _name; }
bool operator==(const NodeType& other) const noexcept { return (&other == this); }
bool operator!=(const NodeType& other) const noexcept { return (&other != this); }
bool operator<(const NodeType& other) const noexcept {
return (&other == this ? false : *this == NodeType::DISTRIBUTOR);
}
private:
Type _type;
vespalib::string _name;
NodeType(vespalib::stringref name, Type type) noexcept;
};
std::ostream & operator << (std::ostream & os, const NodeType & n);
vespalib::asciistream & operator << (vespalib::asciistream & os, const NodeType & n);
}
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