Result GetFirstElementByTagName(MSXML::IXMLDOMElementPtr& parent, const string& tagName, MSXML::IXMLDOMElementPtr& pEl)
{
Result r;
try
{
pEl = 0;
MSXML::IXMLDOMNodeListPtr pList = parent->getElementsByTagName(tagName.c_str());
if(pList == NULL)
{
r.Fail(Format("No '%' nodes found (pList = 0)").s(tagName).Str());
}
else
{
if(!pList->length)
{
r.Fail(Format("No '%' nodes found (length = 0)").s(tagName).Str());
}
else
{
pEl = pList->nextNode();
r.Succeed();
}
}
}
catch(_com_error& e)
{
r.Fail(Format("Com error: % %").s(e.ErrorMessage()).s(e.Description()).Str());
}
return r;
}
void CSolarSystemDoc::ParseXmlDocument(MSXML::IXMLDOMDocumentPtr& pDocument)
{
m_SolarSystem.m_Bodies.clear();
{
MSXML::IXMLDOMNodeListPtr pSolarSystem = pDocument->getElementsByTagName(L"SolarSystem");
if (pSolarSystem)
{
pSolarSystem->reset();
MSXML::IXMLDOMNodePtr pRecordNode = pSolarSystem->nextNode();
m_Thread.m_timestep = static_cast<unsigned int>(GetXmlIntValue(pRecordNode, L"TimeStep", 300));
}
}
MSXML::IXMLDOMNodeListPtr pRecordsList = pDocument->getElementsByTagName(L"Body");
if (pRecordsList)
{
pRecordsList->reset();
MSXML::IXMLDOMNodePtr pRecordNode = pRecordsList->nextNode();
//for each group in the xml file
while (pRecordNode)
{
m_SolarSystem.m_Bodies.emplace_back(MolecularDynamics::Body());
m_SolarSystem.m_BodyProperties.emplace_back(BodyProperties());
LoadBodyXml(pRecordNode, m_SolarSystem.m_Bodies.back(), m_SolarSystem.m_BodyProperties.back());
pRecordNode = pRecordsList->nextNode();
}
}
m_SolarSystem.m_Bodies.shrink_to_fit();
m_SolarSystem.m_BodyProperties.shrink_to_fit();
}