// base function to obtain text from
// node described by XPATH.
HRESULT
CIhvProfileBase::GetTextFromNode
(
IN LPCWSTR pszQuery,
OUT BSTR* pbstrText
)
{
HRESULT hr = S_OK;
BSTR bstrQuery = NULL;
IXMLDOMNode* pQueryNode = NULL;
ASSERT( pszQuery );
ASSERT( pbstrText );
// if node is NULL, return empty string.
if ( !m_pRootNode )
{
hr =
Wstr2Bstr
(
L"",
pbstrText
);
BAIL( );
}
hr =
Wstr2Bstr
(
pszQuery,
&bstrQuery
);
BAIL_ON_FAILURE( hr );
hr = m_pRootNode->selectSingleNode( bstrQuery, &pQueryNode );
BAIL_ON_FAILURE( hr );
if (!pQueryNode)
{
hr = E_UNEXPECTED;
BAIL_ON_FAILURE( hr );
}
hr = pQueryNode->get_text( pbstrText );
BAIL_ON_FAILURE( hr );
if ( !(*pbstrText) )
{
hr = E_UNEXPECTED;
BAIL_ON_FAILURE( hr );
}
error:
RELEASE_INTERFACE( pQueryNode );
SYS_FREE_STRING( bstrQuery );
return hr;
}
IXMLDOMNode * DicomImageSet::findParentNode(IXMLDOMDocument *pXMLDom, IXMLDOMNode * pRoot, const char * patientsName, const char * patientsId, int acquisitionDate, const char * protocol, int acquisitionNumber)
{
if (!pXMLDom)
{
return NULL;
}
HRESULT hr = S_OK;
IXMLDOMElement *pPatient = NULL, *pDate = NULL, *pProtocol = NULL, *pCollection = NULL;
BSTR bstrQuery = NULL;
QString strQuery;
bool nodeExist = false;
//look for the patient node
strQuery = QString("root/Patient[@patients_name = '%1' and @patient_id = '%2']").arg(patientsName).arg(patientsId);
bstrQuery = SysAllocString(strQuery.toStdWString().c_str());
CHK_ALLOC(bstrQuery);
CHK_HR(pXMLDom->selectSingleNode(bstrQuery, (IXMLDOMNode**)&pPatient));
SysFreeString(bstrQuery);
nodeExist = pPatient;
if (!nodeExist)
{
//create the patient node
CHK_HR(CreateElement(pXMLDom, L"Patient", &pPatient));
CHK_HR(CreateAndAddAttributeNode(pXMLDom, L"patients_name", QString(patientsName).toStdWString().c_str(), pPatient));
CHK_HR(CreateAndAddAttributeNode(pXMLDom, L"patient_id", QString(patientsId).toStdWString().c_str(), pPatient));
CHK_HR(CreateAndAddTextNode(pXMLDom, L"\n", pRoot));
CHK_HR(AppendChildToParent(pPatient, pRoot));
}
if (nodeExist)
{
//look for the date node
strQuery = QString("Date[@acquisition_date = '%1']").arg(acquisitionDate);
bstrQuery = SysAllocString(strQuery.toStdWString().c_str());
CHK_ALLOC(bstrQuery);
CHK_HR(pPatient->selectSingleNode(bstrQuery, (IXMLDOMNode**)&pDate));
SysFreeString(bstrQuery);
nodeExist = pDate;
}
if (!nodeExist)
{
CHK_HR(CreateElement(pXMLDom, L"Date", &pDate));
CHK_HR(CreateAndAddAttributeNode(pXMLDom, L"acquisition_date", QString::number(acquisitionDate).toStdWString().c_str(), pDate));
CHK_HR(CreateAndAddTextNode(pXMLDom, L"\n", pPatient));
CHK_HR(AppendChildToParent(pDate, pPatient));
}
if (nodeExist)
{
//look for the protocol node
strQuery = QString("Protocol[@protocol_name = '%1']").arg(protocol);
bstrQuery = SysAllocString(strQuery.toStdWString().c_str());
CHK_ALLOC(bstrQuery);
CHK_HR(pDate->selectSingleNode(bstrQuery, (IXMLDOMNode**)&pProtocol));
SysFreeString(bstrQuery);
nodeExist = pProtocol;
}
if (!nodeExist)
{
CHK_HR(CreateElement(pXMLDom, L"Protocol", &pProtocol));
CHK_HR(CreateAndAddAttributeNode(pXMLDom, L"protocol_name", QString(protocol).toStdWString().c_str(), pProtocol));
CHK_HR(CreateAndAddTextNode(pXMLDom, L"\n", pDate));
CHK_HR(AppendChildToParent(pProtocol, pDate));
}
if (nodeExist)
{
//look for the collection node
strQuery = QString("Collection[@acquisition_number = '%1']").arg(acquisitionNumber);
bstrQuery = SysAllocString(strQuery.toStdWString().c_str());
CHK_ALLOC(bstrQuery);
CHK_HR(pProtocol->selectSingleNode(bstrQuery, (IXMLDOMNode**)&pCollection));
SysFreeString(bstrQuery);
nodeExist = pCollection;
}
if (!nodeExist)
{
CHK_HR(CreateElement(pXMLDom, L"Collection", &pCollection));
CHK_HR(CreateAndAddAttributeNode(pXMLDom, L"acquisition_number", QString::number(acquisitionNumber).toStdWString().c_str(), pCollection));
CHK_HR(CreateAndAddTextNode(pXMLDom, L"\n", pProtocol));
CHK_HR(AppendChildToParent(pCollection, pProtocol));
}
CleanUp:
SAFE_RELEASE(pPatient);
SAFE_RELEASE(pDate);
SAFE_RELEASE(pProtocol);
if(SUCCEEDED(hr))
{
return pCollection;
}
SAFE_RELEASE(pCollection);
return NULL;
}
