package org.opendaylight.openflowplugin.openflow.md.core.translator;

import java.math.BigInteger;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

import org.opendaylight.openflowplugin.openflow.md.core.IMDMessageTranslator;
import org.opendaylight.openflowplugin.openflow.md.core.SwitchConnectionDistinguisher;
import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.TableFeaturesReplyConvertor;
import org.opendaylight.openflowplugin.openflow.md.core.session.SessionContext;
import org.opendaylight.openflowplugin.openflow.md.util.InventoryDataServiceUtil;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev131103.TransactionId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MultipartType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartReply;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartReplyMessage;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyTableFeaturesCase;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.table.features._case.MultipartReplyTableFeatures;
import org.opendaylight.yang.gen.v1.urn.opendaylight.table.service.rev131026.TableUpdatedBuilder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class MultipartReplyTableFeaturesToTableUpdatedTranslator implements
		IMDMessageTranslator<OfHeader, List<DataObject>> {

	protected static final Logger LOG = LoggerFactory
            .getLogger(MultipartReplyTableFeaturesToTableUpdatedTranslator.class);
	
	@Override
	public List<DataObject> translate(SwitchConnectionDistinguisher cookie,
			SessionContext sc, OfHeader msg) {
		
				
		if(msg instanceof MultipartReply && ((MultipartReply) msg).getType() == MultipartType.OFPMPTABLEFEATURES) {
			LOG.info("MultipartReply Being translated to TableUpdated " );
			MultipartReplyMessage mpReply = (MultipartReplyMessage)msg;
                        
            List<DataObject> listDataObject = new CopyOnWriteArrayList<DataObject>();
            
            TableUpdatedBuilder message = new TableUpdatedBuilder() ;
            message.setNode((new NodeRef(InventoryDataServiceUtil.identifierFromDatapathId(sc.getFeatures()
                    .getDatapathId()))));
            message.setMoreReplies(mpReply.getFlags().isOFPMPFREQMORE());
            message.setTransactionId(new TransactionId(new BigInteger(mpReply.getXid().toString() ))) ;
            MultipartReplyTableFeaturesCase caseBody = (MultipartReplyTableFeaturesCase) mpReply.getMultipartReplyBody();
            MultipartReplyTableFeatures body = caseBody.getMultipartReplyTableFeatures();
            message.setTableFeatures(TableFeaturesReplyConvertor.toTableFeaturesReply(body)) ;
            listDataObject.add( message.build()) ;
            
            return listDataObject ;
            
		}
		return Collections.emptyList();
		
	}
	
}