Changeset 116 for osgVisual/src/extLink/dataIO_extLinkVCL.cpp

Timestamp:

Aug 19, 2010, 8:58:29 PM (14 years ago)

Author:

Torben Dannhauer

Message:

 

File:

• osgVisual/src/extLink/dataIO_extLinkVCL.cpp (modified) (2 diffs)

osgVisual/src/extLink/dataIO_extLinkVCL.cpp

@@ -35 +35 @@
         OSG_NOTIFY( osg::ALWAYS ) << "extLinkVCL init()" << std::endl;
 
-        std::string VCLConfigFilename = "osgVisual.xml";
+        VCLConfigFilename = "osgVisual.xml";
+        
         if ( osgDB::fileExists( VCLConfigFilename ) )
         {
                 CVCLIO::GetInstance().LoadProject(VCLConfigFilename.c_str());
+
+                parseVCLConfig();
                 bool error = false;
 
@@ -145 +148 @@
         return true;
 }
+
+bool dataIO_extLinkVCL::parseVCLConfig()
+{
+        configFileValid = false;
+        xmlDoc *doc = NULL;
+    xmlNode *root_element = NULL;
+        
+        doc = xmlReadFile(VCLConfigFilename.c_str(), NULL, 0);
+        if (doc == NULL)
+        {
+                configFileValid = false;
+                std::cout << "error: could not parse file" << VCLConfigFilename;
+        }
+        else
+        {
+                //  Get the root element node
+                root_element = xmlDocGetRootElement(doc);
+
+                checkXMLNode(root_element);
+
+                // free the document
+                xmlFreeDoc(doc);;
+        }
+        // Free the global variables that may have been allocated by the parser.
+        xmlCleanupParser();
+
+        if(!configFileValid)
+                OSG_ALWAYS << "ERROR: XML file seems not to be a valid VCL configuration file!" << std::endl;
+
+        return true;
+}
+
+void dataIO_extLinkVCL::checkXMLNode(xmlNode * a_node)
+{
+    for (xmlNode *cur_node = a_node; cur_node; cur_node = cur_node->next)
+        {
+                std::string node_name=reinterpret_cast<const char*>(cur_node->name);
+                if(cur_node->type == XML_ELEMENT_NODE && node_name == "CONFIGURATION")
+                {
+                        std::cout << "XML node CONFIGURATION found" << std::endl;
+                        configFileValid = true;
+                }
+
+        if (cur_node->type == XML_ELEMENT_NODE && node_name == "CHANNEL")
+                {
+                        std::cout << "XML node CHANNEL found" << std::endl;
+
+                        // Extract channel infos like name, direction and extract channels
+                        std::string name;
+                        dataIO_slot::dataDirection direction;
+                        xmlAttr  *attr = cur_node->properties;
+                        while ( attr ) 
+                        { 
+                                std::string attr_name=reinterpret_cast<const char*>(attr->name);
+                                if( attr_name == "name" )
+                                        name = reinterpret_cast<const char*>(attr->children->content);
+                                if( attr_name == "multicast_in_group" )
+                                        direction = dataIO_slot::TO_OBJ;
+                                if( attr_name == "multicast_out_group" )
+                                        direction = dataIO_slot::FROM_OBJ;
+                                //std::cout << "Attribute name: " << attr->name << " value: " << attr->children->content << std::endl;
+                                attr = attr->next; 
+                        } 
+                        addChannels(cur_node->children, name, direction );
+        
+            //printf("node type: Element, name: %s\n", cur_node->name);
+                        std::cout << "Processing children at " << cur_node->children << std::endl;
+        }       // IF(CHANNEL) END
+
+                // Iterate to the next nodes to find channels.
+        checkXMLNode(cur_node->children);               
+    }   // FOR END
+}
+
+void dataIO_extLinkVCL::addChannels(xmlNode * a_node, std::string channelName_, dataIO_slot::dataDirection direction_ )
+{
+        if(!a_node)
+                return;
+
+        OSG_ALWAYS << "Processing channels for channel " << channelName_ << " with the direction " << direction_ << std::endl;
+
+        for (xmlNode *cur_node = a_node; cur_node; cur_node = cur_node->next)
+        {
+                OSG_ALWAYS << "Found entry!" << std::endl;
+
+                // Extract ENTRY - name
+                std::string entryName;
+                xmlAttr  *attr = cur_node->properties;
+                while ( attr ) 
+                { 
+                        std::string attr_name=reinterpret_cast<const char*>(attr->name);
+                        if( attr_name == "name" )
+                                entryName = reinterpret_cast<const char*>(attr->children->content);
+                        //std::cout << "Attribute name: " << attr->name << " value: " << attr->children->content << std::endl;
+                        attr = attr->next; 
+                } 
+
+                // Store VCL variable
+                CVCLVariable<double>* tmp = new CVCLVariable<double>;
+                extLinkChannels.push_back(tmp);
+
+                // Attach VCL variable to channel:
+                if( !tmp->Attach(channelName_.c_str(), entryName.c_str() ) )
+                        OSG_ALWAYS << "ERROR - dataIO_extLinkVCL::addChannels(): unable to attach VCL variable entryName: " << entryName << " to channel: " << channelName_ << std::endl;
+
+                // Set SLOT data and store SLOT pointer 
+                extLinkSlots.push_back( osgVisual::visual_dataIO::getInstance()->setSlotData( entryName, direction_, 0 ) );
+        }       // FOR each ENTRY END
+}