openflowplugin/src/main/java/org/opendaylight/openflowplugin/openflow/md/core/translator/PortStatusMessageToNodeConnectorUpdatedTranslator.java

   1 /**
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.openflowplugin.openflow.md.core.translator;
   9
  10 import java.math.BigInteger;
  11 import java.util.Collections;
  12 import java.util.List;
  13 import java.util.concurrent.CopyOnWriteArrayList;
  14 import org.opendaylight.openflowplugin.api.openflow.md.core.IMDMessageTranslator;
  15 import org.opendaylight.openflowplugin.api.openflow.md.core.SwitchConnectionDistinguisher;
  16 import org.opendaylight.openflowplugin.api.openflow.md.core.session.SessionContext;
  17 import org.opendaylight.openflowplugin.openflow.md.util.PortTranslatorUtil;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortReason;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.PortStatusMessage;
  21 import org.opendaylight.yangtools.yang.binding.DataObject;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 /**
  26  * translates {@link PortStatusMessage} from OF-API model to MD-SAL model,
  27  * supports OF-{1.0; 1.3}
  28  */
  29 public class PortStatusMessageToNodeConnectorUpdatedTranslator implements IMDMessageTranslator<OfHeader, List<DataObject>> {
  30     private static final Logger LOG = LoggerFactory
  31             .getLogger(PortStatusMessageToNodeConnectorUpdatedTranslator.class);
  32
  33     @Override
  34     public List<DataObject> translate(SwitchConnectionDistinguisher cookie,
  35             SessionContext sc, OfHeader msg) {
  36         if(msg instanceof PortStatusMessage) {
  37             PortStatusMessage port = (PortStatusMessage)msg;
  38             List<DataObject> list = new CopyOnWriteArrayList<DataObject>();
  39             BigInteger datapathId = sc.getFeatures().getDatapathId();
  40             Long portNo = port.getPortNo();
  41             Short version = port.getVersion();
  42             if(port.getReason() == PortReason.OFPPRDELETE){
  43                 LOG.debug("PortStatusMessage: version {}  dataPathId {} portNo {} reason {}",version, datapathId,portNo,port.getReason());
  44                 list.add(PortTranslatorUtil.translatePortRemoved(version, datapathId, portNo, port));
  45
  46             }else{
  47                 LOG.debug("PortStatusMessage: version {}  dataPathId {} portNo {}",version, datapathId,portNo);
  48                 list.add(PortTranslatorUtil.translatePort(version, datapathId, portNo, port));
  49             }
  50             return list;
  51         } else {
  52             // TODO - Do something smarter than returning null if translation fails... what Exception should we throw here?
  53             return Collections.emptyList();
  54         }
  55     }
  56 }