fsfw/parameters/ParameterHelper.cpp

#include "ParameterHelper.h"
#include "ParameterMessage.h"
#include "../objectmanager/ObjectManagerIF.h"

ParameterHelper::ParameterHelper(ReceivesParameterMessagesIF* owner):
        owner(owner) {}

ParameterHelper::~ParameterHelper() {
}

ReturnValue_t ParameterHelper::handleParameterMessage(CommandMessage *message) {
    if(storage == nullptr) {
        // ParameterHelper was not initialized
        return HasReturnvaluesIF::RETURN_FAILED;
    }

    ReturnValue_t result = HasReturnvaluesIF::RETURN_FAILED;
    switch (message->getCommand()) {
    case ParameterMessage::CMD_PARAMETER_DUMP: {
        ParameterWrapper description;
        uint8_t domain = HasParametersIF::getDomain(
                ParameterMessage::getParameterId(message));
        uint8_t uniqueIdentifier = HasParametersIF::getUniqueIdentifierId(
                ParameterMessage::getParameterId(message));
        result = owner->getParameter(domain, uniqueIdentifier,
                &description, &description, 0);
        if (result == HasReturnvaluesIF::RETURN_OK) {
            result = sendParameter(message->getSender(),
                    ParameterMessage::getParameterId(message), &description);
        }
    }
    break;
    case ParameterMessage::CMD_PARAMETER_LOAD: {
        ParameterId_t parameterId = 0;
        uint8_t ptc = 0;
        uint8_t pfc = 0;
        uint8_t rows = 0;
        uint8_t columns = 0;
        store_address_t storeId = ParameterMessage::getParameterLoadCommand(
                message, &parameterId, &ptc, &pfc, &rows, &columns);
        Type type(Type::getActualType(ptc, pfc));

        uint8_t domain = HasParametersIF::getDomain(parameterId);
        uint8_t uniqueIdentifier = HasParametersIF::getUniqueIdentifierId(
                parameterId);
        uint16_t linearIndex = HasParametersIF::getIndex(parameterId);

        ConstStorageAccessor accessor(storeId);
        result = storage->getData(storeId, accessor);
        if (result != HasReturnvaluesIF::RETURN_OK) {
#if CPP_OSTREAM_ENABLED == 1
            sif::error << "ParameterHelper::handleParameterMessage: Getting"
                    << " store data failed for load command." << std::endl;
#endif
            break;
        }

        ParameterWrapper streamWrapper;
        result = streamWrapper.set(type, rows, columns, accessor.data(),
                accessor.size());
        if(result != HasReturnvaluesIF::RETURN_OK) {
            return result;
        }

        ParameterWrapper ownerWrapper;
        result = owner->getParameter(domain, uniqueIdentifier, &ownerWrapper,
                &streamWrapper, linearIndex);

        result = ownerWrapper.copyFrom(&streamWrapper, linearIndex);
        if (result != HasReturnvaluesIF::RETURN_OK) {
            return result;
        }

        result = sendParameter(message->getSender(),
                ParameterMessage::getParameterId(message), &ownerWrapper);
        break;
    }
    default:
        return HasReturnvaluesIF::RETURN_FAILED;
    }

    if (result != HasReturnvaluesIF::RETURN_OK) {
        rejectCommand(message->getSender(), result, message->getCommand());
    }

    return HasReturnvaluesIF::RETURN_OK;
}

ReturnValue_t ParameterHelper::sendParameter(MessageQueueId_t to, uint32_t id,
        const ParameterWrapper* description) {
    size_t serializedSize = description->getSerializedSize();

    uint8_t *storeElement;
    store_address_t address;

    ReturnValue_t result = storage->getFreeElement(&address, serializedSize,
            &storeElement);
    if (result != HasReturnvaluesIF::RETURN_OK) {
        return result;
    }

    size_t storeElementSize = 0;

    result = description->serialize(&storeElement, &storeElementSize,
            serializedSize, SerializeIF::Endianness::BIG);

    if (result != HasReturnvaluesIF::RETURN_OK) {
        storage->deleteData(address);
        return result;
    }

    CommandMessage reply;

    ParameterMessage::setParameterDumpReply(&reply, id, address);

    MessageQueueSenderIF::sendMessage(to, &reply, ownerQueueId);

    return HasReturnvaluesIF::RETURN_OK;
}

ReturnValue_t ParameterHelper::initialize() {
    ownerQueueId = owner->getCommandQueue();

    storage = objectManager->get<StorageManagerIF>(objects::IPC_STORE);
    if (storage == nullptr) {
        return ObjectManagerIF::CHILD_INIT_FAILED;
    }
    return HasReturnvaluesIF::RETURN_OK;
}

void ParameterHelper::rejectCommand(MessageQueueId_t to, ReturnValue_t reason,
        Command_t initialCommand) {
    CommandMessage reply;
    reply.setReplyRejected(reason, initialCommand);
    MessageQueueSenderIF::sendMessage(to, &reply, ownerQueueId);
}