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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/vespalib/stllike/string.h>
namespace proton {
/**
* Interface used to deny write operations when resource limits are reached.
*/
struct IResourceWriteFilter
{
class State
{
private:
bool _acceptWriteOperation;
vespalib::string _message;
public:
State()
: _acceptWriteOperation(true),
_message()
{}
State(bool acceptWriteOperation_, const vespalib::string &message_)
: _acceptWriteOperation(acceptWriteOperation_),
_message(message_)
{}
bool acceptWriteOperation() const { return _acceptWriteOperation; }
const vespalib::string &message() const { return _message; }
};
virtual ~IResourceWriteFilter() {}
virtual bool acceptWriteOperation() const = 0;
virtual State getAcceptState() const = 0;
};
} // namespace proton
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