ADTF  3.18.2
Decoder

Decoder for dynamic structures defined by a DataDefinition definition. More...

Inheritance diagram for Decoder:
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Public Types

typedef DecoderElement< DecoderElementAccess< const Decoder > > Element
 Decoder element.
 
typedef ChildElements< DecoderElementAccess< const Decoder > > Elements
 Iterator container to iterate all elements of the decoder and get values. More...
 
- Public Types inherited from StaticDecoder
typedef DecoderElement< DecoderElementAccess< const StaticDecoder > > Element
 Static decoder element.
 
typedef ChildElements< DecoderElementAccess< const StaticDecoder > > Elements
 Iterator container to iterate all elements of the static decoder. More...
 

Public Member Functions

 Decoder ()
 Default constructor.
 
 Decoder (Decoder &&)
 Move constructor.
 
Decoderoperator= (Decoder &&)
 Move assignment operator.
 
 Decoder (const Decoder &)=delete
 No copy constructor.
 
Decoderoperator= (const Decoder &)=delete
 No copy assignment operator.
 
a_util::result::Result isValid () const override
 
Element getElement (const CodecIndex &codec_index) const
 Retrieves an element instance based on the codec index of that element. More...
 
Element getElement (const std::string &full_element_name) const
 Retrieves an element instance based on the full name of the element. More...
 
const ElementsgetElements () const
 Retrieves the elements of the decoder to get element information and get values. More...
 
size_t getBufferSize () const
 Gets the buffer size in bytes for the main structure. More...
 
size_t getBufferSize (DataRepresentation representation) const
 Gets the buffer size in bytes for the main structure. More...
 
Codec makeCodecFor (void *data, size_t data_size, DataRepresentation representation) const
 Create a new codec with the current dynamic structure layout for a new data buffer. More...
 
- Public Member Functions inherited from StaticDecoder
 ~StaticDecoder ()=default
 DTOR.
 
 StaticDecoder ()
 Default constructor.
 
 StaticDecoder (const StaticDecoder &)=delete
 Noncopyable.
 
StaticDecoderoperator= (const StaticDecoder &)=delete
 Noncopyable.
 
 StaticDecoder (StaticDecoder &&)
 Move constructor.
 
StaticDecoderoperator= (StaticDecoder &&)
 Move assignment operator.
 
Element getElement (const CodecIndex &codec_index) const
 Retrieves an element instance based on the codec index of that element. More...
 
Element getElement (const std::string &full_element_name) const
 Retrieves an element instance based on the full name of the element. More...
 
const ElementsgetElements () const
 Retrieves the elements of the static decoder to get element information. More...
 
size_t getElementChildCount (const CodecIndex &codec_index=CodecIndex()) const
 Retrieves the amount of child elements for the given codec index. More...
 
std::string getElementFullName (const CodecIndex &codec_index) const
 Retrieves the full name of the element within its main structure. More...
 
std::string getElementName (const CodecIndex &codec_index) const
 Retrieves the name of the element within its structured element. More...
 
const std::string & getElementBaseName (const CodecIndex &codec_index) const
 Retrieves the base name of the element within its structured element. More...
 
template<typename T >
getElementValue (const CodecIndex &codec_index) const
 Returns the current value of the given element as a T if supported. More...
 
template<typename T >
getElementValue (const LeafCodecIndex &leaf_codec_index) const
 Returns the current value of the given element as a T if supported. More...
 
a_util::variant::Variant getElementVariantValue (const CodecIndex &codec_index) const
 Returns the current value of the given element as a variant. More...
 
void getElementVariantValue (const CodecIndex &codec_index, a_util::variant::Variant &value) const
 Returns the current value of the given element as a variant. More...
 
std::string getElementStringValue (const CodecIndex &codec_index) const
 Returns the current value of the given element as a string. More...
 
void getElementRawValue (const CodecIndex &index, void *value, size_t value_size) const
 Returns the current value of the given element as a variant. More...
 
const void * getElementAddress (const CodecIndex &index) const
 
size_t getStaticBufferSize () const
 Gets the static buffer size in bytes for the main structure. More...
 
size_t getStaticBufferSize (DataRepresentation rep) const
 Gets the static buffer size in bytes for the main structure. More...
 
DataRepresentation getRepresentation () const
 Returns the current data representation the decoder decodes from. More...
 
CodecIndex resolve (size_t leaf_index) const
 
size_t getElementCount () const
 is the leaf count More...
 
a_util::result::Result getElement (size_t leaf_index, const ddl::StructElement *&legacy_struct_element) const
 Returns the StructElement of the element with given leaf index. More...
 
void resolve (CodecIndex &codec_index) const
 The codec index will be resolved for fast access (layout will be set) More...
 
const void * getData () const noexcept
 Get the current set data. More...
 
size_t getDataSize () const noexcept
 Get the current size (in bytes) of the data. More...
 

Protected Member Functions

 Decoder (std::shared_ptr< const StructAccess > codec_access, const void *data, size_t data_size, DataRepresentation representation)
 For internal use only.
 
 Decoder (const Decoder &decoder, const void *data, size_t data_size, DataRepresentation representation)
 For internal use only.
 
- Protected Member Functions inherited from StaticDecoder
 StaticDecoder (std::shared_ptr< const StructAccess > codec_access, const void *data, size_t data_size, DataRepresentation representation)
 For internal use only.
 

Private Attributes

Element _first_element
 

Additional Inherited Members

- Protected Attributes inherited from StaticDecoder
std::shared_ptr< const StructAccess > _codec_access
 For internal use only.
 
const void * _data = nullptr
 For internal use only.
 
size_t _data_size = 0
 For internal use only.
 
const ddl::codec::ElementAccessor * _element_accessor
 For internal use only.
 

Detailed Description

Decoder for dynamic structures defined by a DataDefinition definition.

Definition at line 30 of file workspace/conan/dev_essential/1.3.3/dw/stable/package/37682420cd166e229516a41c8d6a139a0b13e1e1/include/ddl/codec/codec.h.

Member Typedef Documentation

◆ Elements

Member Function Documentation

◆ getBufferSize() [1/2]

size_t getBufferSize ( ) const

Gets the buffer size in bytes for the main structure.

Return values
size_tof the structure depending on the current representation (getRepresentation)

◆ getBufferSize() [2/2]

size_t getBufferSize ( DataRepresentation  representation) const

Gets the buffer size in bytes for the main structure.

Parameters
[in]representationThe data representation for which the buffer size should be returned.
Returns
The size of the structure in the requested data representation.

◆ getElement() [1/2]

Element getElement ( const CodecIndex codec_index) const

Retrieves an element instance based on the codec index of that element.

Parameters
[in]codec_indexThe codec index.
Returns
The DecoderElement for the given codec index.
Remarks
The element is only valid as long as the factory exists.
Exceptions
throwsstd::runtime_error if not found.

◆ getElement() [2/2]

Element getElement ( const std::string &  full_element_name) const

Retrieves an element instance based on the full name of the element.

Parameters
[in]full_element_nameThe full name of the element in point notation (i.e. "element1.child_element[4].element_value").

By using an empty string the deserialized decoding information within CodecIndex will retrieve the buffers first address and whole buffersize. By refering an array without dedicated array index position the deserialized decoding information within CodecIndex will be set to the arrays first address and the whole array size. By refering an structured value (not a leaf value) the deserialized decoding information within CodecIndex will be set to the structs first address and the whole struct size.

Returns
The Codec Index of the DecoderElement.
Remarks
The element is only valid as long as the factory exists.
Exceptions
throwsstd::runtime_error if not found.

◆ getElements()

const Elements& getElements ( ) const

Retrieves the elements of the decoder to get element information and get values.

Returns
Elements The elements iterator container.
See also
forEachLeafElement, forEachElement, Decoder::Element, CodecIndex

◆ isValid()

a_util::result::Result isValid ( ) const
overridevirtual

Returns
Whether or not the decoder is valid.
Return values
ERR_INVALID_ARGThe passed data is not large enough.

Reimplemented from StaticDecoder.

◆ makeCodecFor()

Codec makeCodecFor ( void *  data,
size_t  data_size,
DataRepresentation  representation 
) const

Create a new codec with the current dynamic structure layout for a new data buffer.

Parameters
[in]dataThe pointer to the new raw data.
[in]data_sizeThe size of the new raw data.
[in]representationThe representation that the data should be encoded in.
Returns
A codec.