POpcPackagePart COpcPackageReader::createPart(_In_ std::wstring sPath)
{
std::wstring sRealPath = fnRemoveLeadingPathDelimiter (sPath);
auto iPartIterator = m_Parts.find(sRealPath);
if (iPartIterator != m_Parts.end()) {
return iPartIterator->second;
}
PImportStream pStream = openZIPEntry(sRealPath);
if (pStream.get() == nullptr)
throw CNMRException(NMR_ERROR_COULDNOTCREATEOPCPART);
POpcPackagePart pPart = std::make_shared<COpcPackagePart>(sRealPath, pStream);
m_Parts.insert(std::make_pair(sRealPath, pPart));
std::wstring sRelationShipName = fnExtractFileName(sRealPath);
std::wstring sRelationShipPath = sRealPath.substr(0, sRealPath.length() - sRelationShipName.length());
sRelationShipPath += L"_rels/";
sRelationShipPath += sRelationShipName;
sRelationShipPath += L".rels";
PImportStream pRelStream = openZIPEntry(sRelationShipPath);
if (pRelStream.get() != nullptr) {
POpcPackageRelationshipReader pReader = std::make_shared<COpcPackageRelationshipReader>(pRelStream);
nfUint32 nCount = pReader->getCount();
nfUint32 nIndex;
for (nIndex = 0; nIndex < nCount; nIndex++) {
POpcPackageRelationship pRelationShip = pReader->getRelationShip(nIndex);
pPart->addRelationship(pRelationShip->getID(), pRelationShip->getType(), pRelationShip->getTargetPartURI());
}
}
return pPart;
}
_Ret_maybenull_ COpcPackageRelationship * COpcPackageReader::findRootRelation(_In_ std::wstring sRelationType, _In_ nfBool bMustBeUnique)
{
COpcPackageRelationship * pResultRelationship = nullptr;
auto iIterator = m_RootRelationships.begin();
while (iIterator != m_RootRelationships.end()) {
POpcPackageRelationship pRelationship = *iIterator;
std::wstring sType = pRelationship->getType();
if (sType == sRelationType) {
if (pResultRelationship == nullptr) {
pResultRelationship = pRelationship.get();
}
else {
if (bMustBeUnique)
throw CNMRException(NMR_ERROR_OPCRELATIONSHIPNOTUNIQUE);
}
}
iIterator++;
}
return pResultRelationship;
}