134 lines
4.6 KiB
C++
134 lines
4.6 KiB
C++
/**
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* @file SerialLinkedListAdapter.h
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* @brief This file defines the SerialLinkedListAdapter class.
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* @date 22.07.2014
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* @author baetz
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*/
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#ifndef SERIALLINKEDLISTADAPTER_H_
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#define SERIALLINKEDLISTADAPTER_H_
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#include "../container/SinglyLinkedList.h"
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#include "../serialize/SerializeAdapter.h"
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#include "../serialize/SerializeElement.h"
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#include "../serialize/SerializeIF.h"
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//This is where we need the SerializeAdapter!
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/**
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* @brief Implement the conversion of object data to data streams
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* or vice-versa, using linked lists.
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* @details
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* An alternative to the AutoSerializeAdapter functions
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* - All object members with a datatype are declared as
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* SerializeElement<element_type> members inside the class
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* implementing this adapter.
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* - The element type can also be a SerialBufferAdapter to
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* de-/serialize buffers with a known size
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* - The element type can also be a SerialFixedArrayListAdapter to
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* de-/serialize buffers with a size header, which is scanned automatically.
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*
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* The sequence of objects is defined in the constructor by using
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* the setStart and setNext functions.
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*
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* 1. The serialization process is done by instantiating the class and
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* calling serialize after all SerializeElement entries have been set by
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* using the constructor or setter functions. An additional size variable
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* can be supplied which is calculated/incremented automatically.
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* 2. The deserialization process is done by instantiating the class and
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* supplying a buffer with the data which is converted into an object.
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* The size of data to serialize can be supplied and is
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* decremented in the function. Range checking is done internally.
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*
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* @ingroup serialize
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*/
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template<typename T, typename count_t = uint8_t>
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class SerialLinkedListAdapter: public SinglyLinkedList<T>, public SerializeIF {
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public:
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/**
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* Copying is forbidden by deleting the copy constructor and the copy
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* assignment operator because of the pointers to the linked list members.
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* Unless the child class implements an own copy constructor or
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* copy assignment operator, these operation will throw a compiler error.
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* @param
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*/
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SerialLinkedListAdapter(const SerialLinkedListAdapter &) = delete;
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SerialLinkedListAdapter& operator=(const SerialLinkedListAdapter&) = delete;
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SerialLinkedListAdapter(typename LinkedElement<T>::Iterator start,
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bool printCount = false) :
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SinglyLinkedList<T>(start), printCount(printCount) {
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}
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SerialLinkedListAdapter(LinkedElement<T>* first, bool printCount = false) :
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SinglyLinkedList<T>(first), printCount(printCount) {
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}
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SerialLinkedListAdapter(bool printCount = false) :
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SinglyLinkedList<T>(), printCount(printCount) {
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}
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virtual ReturnValue_t serialize(uint8_t** buffer, size_t* size,
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size_t maxSize, Endianness streamEndianness) const override {
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if (printCount) {
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count_t mySize = SinglyLinkedList<T>::getSize();
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ReturnValue_t result = SerializeAdapter::serialize(&mySize,
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buffer, size, maxSize, streamEndianness);
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if (result != HasReturnvaluesIF::RETURN_OK) {
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return result;
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}
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}
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return serialize(SinglyLinkedList<T>::start, buffer, size, maxSize,
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streamEndianness);
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}
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static ReturnValue_t serialize(const LinkedElement<T>* element,
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uint8_t** buffer, size_t* size, size_t maxSize,
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Endianness streamEndianness) {
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ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
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while ((result == HasReturnvaluesIF::RETURN_OK) && (element != NULL)) {
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result = element->value->serialize(buffer, size, maxSize,
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streamEndianness);
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element = element->getNext();
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}
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return result;
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}
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virtual size_t getSerializedSize() const override {
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if (printCount) {
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return SerialLinkedListAdapter<T>::getSerializedSize()
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+ sizeof(count_t);
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} else {
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return getSerializedSize(SinglyLinkedList<T>::start);
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}
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}
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static size_t getSerializedSize(const LinkedElement<T> *element) {
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size_t size = 0;
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while (element != NULL) {
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size += element->value->getSerializedSize();
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element = element->getNext();
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}
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return size;
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}
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virtual ReturnValue_t deSerialize(const uint8_t** buffer, size_t* size,
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Endianness streamEndianness) override {
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return deSerialize(SinglyLinkedList<T>::start, buffer, size, streamEndianness);
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}
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static ReturnValue_t deSerialize(LinkedElement<T>* element,
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const uint8_t** buffer, size_t* size, Endianness streamEndianness) {
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ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
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while ((result == HasReturnvaluesIF::RETURN_OK) && (element != NULL)) {
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result = element->value->deSerialize(buffer, size, streamEndianness);
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element = element->getNext();
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}
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return result;
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}
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bool printCount;
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};
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#endif /* SERIALLINKEDLISTADAPTER_H_ */
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