blob: 0d079f2f27bc31da098297bd1d51451d4d4727af [file] [log] [blame]
#pragma once
#include "registry.hpp"
#include "section_header.hpp"
#include <optional>
namespace openpower
{
namespace pels
{
/**
* @class Section
*
* The base class for a PEL section. It contains the SectionHeader
* as all sections start with it.
*
*/
class Section
{
public:
Section() = default;
virtual ~Section() = default;
Section(const Section&) = default;
Section& operator=(const Section&) = default;
Section(Section&&) = default;
Section& operator=(Section&&) = default;
/**
* @brief Returns a reference to the SectionHeader
*/
const SectionHeader& header() const
{
return _header;
}
/**
* @brief Says if the section is valid.
*/
bool valid() const
{
return _valid;
}
/**
* @brief Flatten the section into the stream
*
* @param[in] stream - The stream to write to
*/
virtual void flatten(Stream& stream) const = 0;
/**
* @brief Get section in JSON. Derived classes to override when required to.
* @return std::optional<std::string> - If a section comes with a JSON
* representation, this would return the string for it.
*/
virtual std::optional<std::string> getJSON() const
{
return std::nullopt;
}
/**
* @brief Get section in JSON. Derived classes to override when required to.
* @param[in] registry - Registry object reference
* @return std::optional<std::string> - If a section comes with a JSON
* representation, this would return the string for it.
*/
virtual std::optional<std::string>
getJSON(message::Registry& registry) const
{
return std::nullopt;
}
/**
* @brief Get section in JSON. Derived classes to override when required to.
* @param[in] creatorID - Creator Subsystem ID from Private Header
* @return std::optional<std::string> - If a section comes with a JSON
* representation, this would return the string for it.
*/
virtual std::optional<std::string> getJSON(uint8_t creatorID) const
{
return std::nullopt;
}
/**
* @brief Shrinks a PEL section
*
* If this is even possible for a section depends on which section
* it is. If a section cannot be shrunk, it doesn't need to implement
* shrink so it will just return false, meaning no shrinking was done.
*
* If a section can be shrunk, this function will be overridden in that
* class.
*
* @param[in] newSize - The new size, in bytes, to shrink to
*
* @return bool - true if successful, false else
*/
virtual bool shrink(size_t newSize)
{
return false;
}
/**
* @brief Returns any debug data stored in the object
*
* @return std::vector<std::string>& - The debug data
*/
const std::vector<std::string>& getDebugData() const
{
return _debugData;
}
protected:
/**
* @brief Returns the flattened size of the section header
*/
static constexpr size_t flattenedSize()
{
return SectionHeader::flattenedSize();
}
/**
* @brief Adds debug data to the object that may be displayed
* in a UserData section in the PEL.
*
* @param[in] data - The new entry to add to the vector of data.
*/
void addDebugData(const std::string& data)
{
_debugData.push_back(data);
}
/**
* @brief Used to validate the section.
*
* Implemented by derived classes.
*/
virtual void validate() = 0;
/**
* @brief The section header structure.
*
* Filled in by derived classes.
*/
SectionHeader _header;
/**
* @brief The section valid flag.
*
* This is determined by the derived class.
*/
bool _valid = false;
/**
* @brief Messages that derived classes can add during construction
* of a PEL when something happens that would be useful to
* store in the PEL. This may get added into a UserData section
* in the PEL.
*/
std::vector<std::string> _debugData;
};
} // namespace pels
} // namespace openpower