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Add xml doc.

pull/3907/head
Kim Kulling 2021-05-18 21:15:48 +02:00
parent d7c65d363c
commit e01a6b4276
5 changed files with 189 additions and 105 deletions
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40
code/AssetLib/Collada/ColladaParser.cpp
View File

@ -623,8 +623,7 @@ void ColladaParser::ReadController(XmlNode &node, Collada::Controller &controlle
controller.mType = Skin;
controller.mMethod = Normalized;
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
@ -929,8 +928,7 @@ void ColladaParser::ReadMaterial(XmlNode &node, Collada::Material &pMaterial) {
// ------------------------------------------------------------------------------------------------
// Reads a light entry into the given light
void ColladaParser::ReadLight(XmlNode &node, Collada::Light &pLight) {
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
const std::string &currentName = currentNode.name();
@ -991,10 +989,8 @@ void ColladaParser::ReadLight(XmlNode &node, Collada::Light &pLight) {
// ------------------------------------------------------------------------------------------------
// Reads a camera entry into the given light
void ColladaParser::ReadCamera(XmlNode &node, Collada::Camera &camera) {
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
const std::string &currentName = currentNode.name();
if (currentName == "orthographic") {
@ -1050,11 +1046,10 @@ void ColladaParser::ReadEffect(XmlNode &node, Collada::Effect &pEffect) {
// ------------------------------------------------------------------------------------------------
// Reads an COMMON effect profile
void ColladaParser::ReadEffectProfileCommon(XmlNode &node, Collada::Effect &pEffect) {
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
const std::string &currentName = currentNode.name();
const std::string currentName = currentNode.name();
if (currentName == "newparam") {
// save ID
std::string sid = currentNode.attribute("sid").as_string();
@ -1145,10 +1140,9 @@ void ColladaParser::ReadSamplerProperties(XmlNode &node, Sampler &out) {
if (node.empty()) {
return;
}
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNode currentNode;
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
const std::string &currentName = currentNode.name();
// MAYA extensions
@ -1208,10 +1202,9 @@ void ColladaParser::ReadEffectColor(XmlNode &node, aiColor4D &pColor, Sampler &p
if (node.empty()) {
return;
}
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNode currentNode;
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
const std::string &currentName = currentNode.name();
if (currentName == "color") {
@ -1273,8 +1266,7 @@ void ColladaParser::ReadEffectParam(XmlNode &node, Collada::EffectParam &pParam)
return;
}
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
const std::string &currentName = currentNode.name();
@ -1360,8 +1352,7 @@ void ColladaParser::ReadMesh(XmlNode &node, Mesh &pMesh) {
return;
}
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
const std::string &currentName = currentNode.name();
@ -1386,8 +1377,7 @@ void ColladaParser::ReadSource(XmlNode &node) {
std::string sourceID;
XmlParser::getStdStrAttribute(node, "id", sourceID);
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
const std::string &currentName = currentNode.name();
@ -1490,8 +1480,7 @@ void ColladaParser::ReadAccessor(XmlNode &node, const std::string &pID) {
acc.mSource = source.c_str() + 1; // ignore the leading '#'
acc.mSize = 0; // gets incremented with every param
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
const std::string &currentName = currentNode.name();
@ -1608,8 +1597,7 @@ void ColladaParser::ReadIndexData(XmlNode &node, Mesh &pMesh) {
ai_assert(primType != Prim_Invalid);
// also a number of <input> elements, but in addition a <p> primitive collection and probably index counts for all primitives
XmlNodeIterator xmlIt(node);
xmlIt.collectChildrenPreOrder(node);
XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
XmlNode currentNode;
while (xmlIt.getNext(currentNode)) {
const std::string &currentName = currentNode.name();

3
include/assimp/Exceptional.h
View File

@ -71,6 +71,9 @@ protected:
* nullptr instead of a valid aiScene then. */
class ASSIMP_API DeadlyImportError : public DeadlyErrorBase {
public:
DeadlyImportError(const char *message) :
DeadlyErrorBase(Assimp::Formatter::format(), std::forward<const char*>(message)) {}
/** Constructor with arguments */
template<typename... T>
explicit DeadlyImportError(T&&... args) :

129
include/assimp/XmlParser.h
View File

@ -66,6 +66,8 @@ struct find_node_by_name_predicate {
}
};
/// @brief Will convert an attribute to its int value.
/// @tparam TNodeType The node type.
template <class TNodeType>
struct NodeConverter {
public:
@ -78,19 +80,37 @@ public:
using XmlNode = pugi::xml_node;
using XmlAttribute = pugi::xml_attribute;
/// @brief The Xml-Parser class.
///
/// Use this parser if you have to import any kind of xml-format.
///
/// An example:
/// @code
/// TXmlParser<XmlNode> theParser;
/// if (theParser.parse(fileStream)) {
/// auto node = theParser.getRootNode();
/// for ( auto currentNode : node.children()) {
/// // Will loop over all children
/// }
/// }
/// @endcode
/// @tparam TNodeType
template <class TNodeType>
class TXmlParser {
public:
/// @brief The default class constructor.
TXmlParser() :
mDoc(nullptr),
mData() {
// empty
}
/// @brief The class destructor.
~TXmlParser() {
clear();
}
/// @brief Will clear the parsed xml-file.
void clear() {
if(mData.empty()) {
mDoc = nullptr;
@ -101,6 +121,9 @@ public:
mDoc = nullptr;
}
/// @brief Will search for a child-node by its name
/// @param name [in] The name of the child-node.
/// @return The node instance or nullptr, if nothing was found.
TNodeType *findNode(const std::string &name) {
if (name.empty()) {
return nullptr;
@ -119,10 +142,16 @@ public:
return &mCurrent;
}
/// @brief Will return true, if the node is a child-node.
/// @param name [in] The name of the child node to look for.
/// @return true, if the node is a child-node or false if not.
bool hasNode(const std::string &name) {
return nullptr != findNode(name);
}
/// @brief Will parse an xml-file from a given stream.
/// @param stream The input stream.
/// @return true, if the parsing was successful, false if not.
bool parse(IOStream *stream) {
if (nullptr == stream) {
ASSIMP_LOG_DEBUG("Stream is nullptr.");
@ -138,34 +167,53 @@ public:
pugi::xml_parse_result parse_result = mDoc->load_string(&mData[0], pugi::parse_full);
if (parse_result.status == pugi::status_ok) {
return true;
} else {
ASSIMP_LOG_DEBUG("Error while parse xml.");
return false;
}
ASSIMP_LOG_DEBUG("Error while parse xml.");
return false;
}
/// @brief Will return the document pointer, is nullptr if no xml-file was parsed.
/// @return The pointer showing to the document.
pugi::xml_document *getDocument() const {
return mDoc;
}
/// @brief Will return the root node, const version.
/// @return The root node.
const TNodeType getRootNode() const {
return mDoc->root();
}
/// @brief Will return the root node, non-const version.
/// @return The root node.
TNodeType getRootNode() {
return mDoc->root();
}
/// @brief Will check if a node with the given name is in.
/// @param node [in] The node to look in.
/// @param name [in] The name of the child-node.
/// @return true, if node was found, false if not.
static inline bool hasNode(XmlNode &node, const char *name) {
pugi::xml_node child = node.find_child(find_node_by_name_predicate(name));
return !child.empty();
}
/// @brief Will check if an attribute is part of the XmlNode.
/// @param xmlNode [in] The node to search in.
/// @param name [in} The attribute name to look for.
/// @return true, if the was found, false if not.
static inline bool hasAttribute(XmlNode &xmlNode, const char *name) {
pugi::xml_attribute attr = xmlNode.attribute(name);
return !attr.empty();
}
/// @brief Will try to get an unsigned int attribute value.
/// @param xmlNode [in] The node to search in.
/// @param name [in] The attribute name to look for.
/// @param val [out] The unsigned int value from the attribute.
/// @return true, if the node contains an attribute with the given name and if the value is an unsigned int.
static inline bool getUIntAttribute(XmlNode &xmlNode, const char *name, unsigned int &val) {
pugi::xml_attribute attr = xmlNode.attribute(name);
if (attr.empty()) {
@ -176,6 +224,11 @@ public:
return true;
}
/// @brief Will try to get an int attribute value.
/// @param xmlNode [in] The node to search in.
/// @param name [in] The attribute name to look for.
/// @param val [out] The int value from the attribute.
/// @return true, if the node contains an attribute with the given name and if the value is an int.
static inline bool getIntAttribute(XmlNode &xmlNode, const char *name, int &val ) {
pugi::xml_attribute attr = xmlNode.attribute(name);
if (attr.empty()) {
@ -186,6 +239,11 @@ public:
return true;
}
/// @brief Will try to get a real attribute value.
/// @param xmlNode [in] The node to search in.
/// @param name [in] The attribute name to look for.
/// @param val [out] The real value from the attribute.
/// @return true, if the node contains an attribute with the given name and if the value is a real.
static inline bool getRealAttribute( XmlNode &xmlNode, const char *name, ai_real &val ) {
pugi::xml_attribute attr = xmlNode.attribute(name);
if (attr.empty()) {
@ -199,7 +257,12 @@ public:
return true;
}
static inline bool getFloatAttribute(XmlNode &xmlNode, const char *name, float &val ) {
/// @brief Will try to get a float attribute value.
/// @param xmlNode [in] The node to search in.
/// @param name [in] The attribute name to look for.
/// @param val [out] The float value from the attribute.
/// @return true, if the node contains an attribute with the given name and if the value is a float.
static inline bool getFloatAttribute(XmlNode &xmlNode, const char *name, float &val) {
pugi::xml_attribute attr = xmlNode.attribute(name);
if (attr.empty()) {
return false;
@ -210,7 +273,12 @@ public:
}
static inline bool getDoubleAttribute( XmlNode &xmlNode, const char *name, double &val ) {
/// @brief Will try to get a double attribute value.
/// @param xmlNode [in] The node to search in.
/// @param name [in] The attribute name to look for.
/// @param val [out] The double value from the attribute.
/// @return true, if the node contains an attribute with the given name and if the value is a double.
static inline bool getDoubleAttribute(XmlNode &xmlNode, const char *name, double &val) {
pugi::xml_attribute attr = xmlNode.attribute(name);
if (attr.empty()) {
return false;
@ -220,6 +288,11 @@ public:
return true;
}
/// @brief Will try to get a std::string attribute value.
/// @param xmlNode [in] The node to search in.
/// @param name [in] The attribute name to look for.
/// @param val [out] The std::string value from the attribute.
/// @return true, if the node contains an attribute with the given name and if the value is a std::string.
static inline bool getStdStrAttribute(XmlNode &xmlNode, const char *name, std::string &val) {
pugi::xml_attribute attr = xmlNode.attribute(name);
if (attr.empty()) {
@ -230,6 +303,11 @@ public:
return true;
}
/// @brief Will try to get a bool attribute value.
/// @param xmlNode [in] The node to search in.
/// @param name [in] The attribute name to look for.
/// @param val [out] The bool value from the attribute.
/// @return true, if the node contains an attribute with the given name and if the value is a bool.
static inline bool getBoolAttribute( XmlNode &xmlNode, const char *name, bool &val ) {
pugi::xml_attribute attr = xmlNode.attribute(name);
if (attr.empty()) {
@ -241,6 +319,10 @@ public:
}
/// @brief Will try to get the value of the node as a string.
/// @param node [in] The node to search in.
/// @param text [out] The value as a text.
/// @return true, if the value can be read out.
static inline bool getValueAsString( XmlNode &node, std::string &text ) {
text = std::string();
if (node.empty()) {
@ -252,6 +334,10 @@ public:
return true;
}
/// @brief Will try to get the value of the node as a float.
/// @param node [in] The node to search in.
/// @param text [out] The value as a float.
/// @return true, if the value can be read out.
static inline bool getValueAsFloat( XmlNode &node, ai_real &v ) {
if (node.empty()) {
return false;
@ -271,17 +357,36 @@ public:
using XmlParser = TXmlParser<pugi::xml_node>;
/// @brief This class declares an iterator to loop through all children of the root node.
class XmlNodeIterator {
public:
XmlNodeIterator(XmlNode &parent) :
/// @brief The iteration mode.
enum IterationMode {
PreOrderMode, ///< Pre-ordering, get the values, continue the iteration.
PostOrderMode ///< Post-ordering, continue the iteration, get the values.
};
/// @brief The class constructor
/// @param parent [in] The xml parent to to iterate through.
/// @param mode [in] The iteration mode.
explicit XmlNodeIterator(XmlNode &parent, IterationMode mode) :
mParent(parent),
mNodes(),
mIndex(0) {
if (mode == PreOrderMode) {
collectChildrenPreOrder(parent);
} else {
collectChildrenPostOrder(parent);
}
}
/// @brief The class destructor.
~XmlNodeIterator() {
// empty
}
/// @brief Will iterate through all children in pre-order iteration.
/// @param node [in] The nod to iterate through.
void collectChildrenPreOrder( XmlNode &node ) {
if (node != mParent && node.type() == pugi::node_element) {
mNodes.push_back(node);
}
@ -290,6 +395,8 @@ public:
}
}
/// @brief Will iterate through all children in post-order iteration.
/// @param node [in] The nod to iterate through.
void collectChildrenPostOrder(XmlNode &node) {
for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
collectChildrenPostOrder(currentNode);
@ -299,6 +406,9 @@ public:
}
}
/// @brief Will iterate through all collected nodes.
/// @param next The next node, if there is any.
/// @return true, if there is a node left.
bool getNext(XmlNode &next) {
if (mIndex == mNodes.size()) {
return false;
@ -310,14 +420,19 @@ public:
return true;
}
/// @brief Will return the number of collected nodes.
/// @return The number of collected nodes.
size_t size() const {
return mNodes.size();
}
/// @brief Returns true, if the node is empty.
/// @return true, if the node is empty, false if not.
bool isEmpty() const {
return mNodes.empty();
}
/// @brief Will clear all collected nodes.
void clear() {
if (mNodes.empty()) {
return;

4
test/unit/Common/utXmlParser.cpp
View File

@ -73,9 +73,7 @@ TEST_F(utXmlParser, parse_xml_and_traverse_test) {
EXPECT_TRUE(result);
XmlNode root = parser.getRootNode();
XmlNodeIterator nodeIt(root);
EXPECT_TRUE(nodeIt.isEmpty());
nodeIt.collectChildrenPreOrder(root);
XmlNodeIterator nodeIt(root, XmlNodeIterator::PreOrderMode);
const size_t numNodes = nodeIt.size();
bool empty = nodeIt.isEmpty();
EXPECT_FALSE(empty);

116
test/unit/utImporter.cpp
View File

@ -280,104 +280,84 @@ TEST_F(ImporterTest, SearchFileHeaderForTokenTest) {
// BaseImporter::SearchFileHeaderForToken( &ioSystem, assetPath, Token, 2 )
}
namespace {
// Description for an importer which fails in specific ways.
aiImporterDesc s_failingImporterDescription = {
"Failing importer",
"assimp team",
"",
"",
0,
1,
0,
1,
0,
"fail"
};
namespace
{
// Description for an importer which fails in specific ways.
aiImporterDesc s_failingImporterDescription = {
"Failing importer",
"assimp team",
"",
"",
0,
1,
0,
1,
0,
"fail"
};
// This importer fails in specific ways.
class FailingImporter : public Assimp::BaseImporter {
public:
virtual ~FailingImporter() = default;
virtual bool CanRead(const std::string &, Assimp::IOSystem *, bool) const override {
return true;
}
// This importer fails in specific ways.
class FailingImporter : public Assimp::BaseImporter {
public:
virtual ~FailingImporter() = default;
virtual bool CanRead( const std::string&, Assimp::IOSystem*, bool ) const override
{
return true;
protected:
const aiImporterDesc *GetInfo() const override {
return &s_failingImporterDescription;
}
void InternReadFile(const std::string &pFile, aiScene *, Assimp::IOSystem *) override {
if (pFile == "deadlyImportError.fail") {
throw DeadlyImportError("Deadly import error test. Details: ", 42, " More Details: ", "Failure");
} else if (pFile == "stdException.fail") {
throw std::runtime_error("std::exception test");
} else if (pFile == "unexpectedException.fail") {
throw 5;
}
}
};
} // namespace
protected:
virtual const aiImporterDesc* GetInfo() const override { return &s_failingImporterDescription; }
virtual void InternReadFile( const std::string& pFile, aiScene*, Assimp::IOSystem* ) override
{
if (pFile == "deadlyImportError.fail")
{
throw DeadlyImportError("Deadly import error test. Details: ", 42, " More Details: ", "Failure");
}
else if (pFile == "stdException.fail")
{
throw std::runtime_error("std::exception test");
}
else if (pFile == "unexpectedException.fail")
{
throw 5;
}
}
};
}
TEST_F(ImporterTest, deadlyImportError)
{
TEST_F(ImporterTest, deadlyImportError) {
pImp->RegisterLoader(new FailingImporter);
pImp->SetIOHandler(new TestIOSystem);
const aiScene* scene = pImp->ReadFile("deadlyImportError.fail", 0);
const aiScene *scene = pImp->ReadFile("deadlyImportError.fail", 0);
EXPECT_EQ(scene, nullptr);
EXPECT_STREQ(pImp->GetErrorString(), "Deadly import error test. Details: 42 More Details: Failure");
EXPECT_NE(pImp->GetException(), std::exception_ptr());
}
TEST_F(ImporterTest, stdException)
{
TEST_F(ImporterTest, stdException) {
pImp->RegisterLoader(new FailingImporter);
pImp->SetIOHandler(new TestIOSystem);
const aiScene* scene = pImp->ReadFile("stdException.fail", 0);
const aiScene *scene = pImp->ReadFile("stdException.fail", 0);
EXPECT_EQ(scene, nullptr);
EXPECT_STREQ(pImp->GetErrorString(), "std::exception test");
EXPECT_NE(pImp->GetException(), std::exception_ptr());
try
{
try {
std::rethrow_exception(pImp->GetException());
}
catch(const std::exception& e)
{
} catch (const std::exception &e) {
EXPECT_STREQ(e.what(), "std::exception test");
}
catch(...)
{
} catch (...) {
EXPECT_TRUE(false);
}
}
TEST_F(ImporterTest, unexpectedException)
{
TEST_F(ImporterTest, unexpectedException) {
pImp->RegisterLoader(new FailingImporter);
pImp->SetIOHandler(new TestIOSystem);
const aiScene* scene = pImp->ReadFile("unexpectedException.fail", 0);
const aiScene *scene = pImp->ReadFile("unexpectedException.fail", 0);
EXPECT_EQ(scene, nullptr);
EXPECT_STREQ(pImp->GetErrorString(), "Unknown exception");
ASSERT_NE(pImp->GetException(), std::exception_ptr());
try
{
try {
std::rethrow_exception(pImp->GetException());
}
catch(int x)
{
} catch (int x) {
EXPECT_EQ(x, 5);
}
catch(...)
{
} catch (...) {
EXPECT_TRUE(false);
}
}