C++ (Cpp) Ptr::AddSpatialData Examples

Example #1

File: ServerGetSpatialContexts.cpp Project: kanbang/Colt

MgSpatialContextReader* MgServerGetSpatialContexts::GetSpatialContexts(MgResourceIdentifier* resId)
{
    Ptr<MgSpatialContextReader> mgSpatialContextReader;

    MG_FEATURE_SERVICE_TRY()

    mgSpatialContextReader = m_featureServiceCache->GetSpatialContextReader(resId);

    if (NULL == mgSpatialContextReader.p)
    {
        // Connect to provider
        Ptr<MgServerFeatureConnection> msfc = new MgServerFeatureConnection(resId);

        // Connection must be open to retrieve a list of available contexts.
        if ((NULL != msfc.p) && ( msfc->IsConnectionOpen() ))
        {
            // The reference to the FDO connection from the MgServerFeatureConnection object must be cleaned up before the parent object
            // otherwise it leaves the FDO connection marked as still in use.
            FdoPtr<FdoIConnection> fdoConn = msfc->GetConnection();
            m_providerName = msfc->GetProviderName();

            Ptr<MgSpatialContextCacheItem> cacheItem = MgCacheManager::GetInstance()->GetSpatialContextCacheItem(resId);
            MgSpatialContextInfo* spatialContextInfo = cacheItem->Get();

            // Check whether command is supported by provider
            if (!msfc->SupportsCommand((INT32)FdoCommandType_GetSpatialContexts))
            {
                // TODO: specify which argument and message, once we have the mechanism
                STRING message = MgServerFeatureUtil::GetMessage(L"MgCommandNotSupported");
                throw new MgInvalidOperationException(L"MgServerGetSpatialContexts.GetSpatialContexts", __LINE__, __WFILE__, NULL, L"", NULL);
            }

            FdoPtr<FdoIGetSpatialContexts> fdoCommand = (FdoIGetSpatialContexts*)fdoConn->CreateCommand(FdoCommandType_GetSpatialContexts);
            CHECKNULL((FdoIGetSpatialContexts*)fdoCommand, L"MgServerGetSpatialContexts.GetSpatialContexts");

            // Execute the command
            FdoPtr<FdoISpatialContextReader> spatialReader = fdoCommand->Execute();
            CHECKNULL((FdoISpatialContextReader*)spatialReader, L"MgServerGetSpatialContexts.GetSpatialContexts");

            mgSpatialContextReader = new MgSpatialContextReader();
            while (spatialReader->ReadNext())
            {
                // Set providername for which spatial reader is executed
                mgSpatialContextReader->SetProviderName(m_providerName);

                Ptr<MgSpatialContextData> spatialData = GetSpatialContextData(spatialReader, spatialContextInfo);
                CHECKNULL((MgSpatialContextData*)spatialData, L"MgServerGetSpatialContexts.GetSpatialContexts");

                // Add spatial data to the spatialcontext reader
                mgSpatialContextReader->AddSpatialData(spatialData);
            }

            m_featureServiceCache->SetSpatialContextReader(resId, mgSpatialContextReader.p);
        }
        else
        {
            throw new MgConnectionFailedException(L"MgServerGetSpatialContexts.GetSpatialContexts()", __LINE__, __WFILE__, NULL, L"", NULL);
        }
    }
    else
    {
        MgCacheManager::GetInstance()->CheckPermission(resId, MgResourcePermission::ReadOnly);
    }

    MG_FEATURE_SERVICE_CHECK_CONNECTION_CATCH_AND_THROW(resId, L"MgServerGetSpatialContexts.GetSpatialContexts")

    return mgSpatialContextReader.Detach();
}