openflowplugin/src/main/java/org/opendaylight/openflowplugin/openflow/md/core/translator/ErrorTranslator.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
  15 import org.opendaylight.openflowplugin.openflow.md.core.IMDMessageTranslator;
  16 import org.opendaylight.openflowplugin.openflow.md.core.SwitchConnectionDistinguisher;
  17 import org.opendaylight.openflowplugin.openflow.md.core.session.SessionContext;
  18 import org.opendaylight.openflowplugin.openflow.md.core.session.TransactionKey;
  19 import org.opendaylight.openflowplugin.openflow.md.util.ByteUtil;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.errors.rev131116.ErrorType;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeErrorNotification;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeErrorNotificationBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeFlow;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.node.error.notification.object.reference.FlowRefBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.node.error.notification.object.reference.GroupRefBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.node.error.notification.object.reference.MeterRefBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev131103.TransactionId;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev131103.TransactionMetadata;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.NodeGroup;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.NodeMeter;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ErrorMessage;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
  33 import org.opendaylight.yangtools.yang.binding.DataObject;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 public class ErrorTranslator implements IMDMessageTranslator<OfHeader, List<DataObject>> {
  38
  39     protected static final Logger LOG = LoggerFactory.getLogger(ErrorTranslator.class);
  40
  41     @Override
  42     public List<DataObject> translate(SwitchConnectionDistinguisher cookie, SessionContext sc, OfHeader msg) {
  43         if (msg instanceof ErrorMessage) {
  44             ErrorMessage message = (ErrorMessage) msg;
  45             List<DataObject> list = new CopyOnWriteArrayList<DataObject>();
  46             LOG.debug(" Error Message received: type={}[{}], code={}[{}], data=[{}] ", message.getType(),
  47                     message.getTypeString(), message.getCode(), message.getCodeString(),
  48                     ByteUtil.bytesToHexstring(message.getData(), " "));
  49
  50             // create a Node Error Notification event builder
  51             NodeErrorNotificationBuilder nodeErrBuilder = new NodeErrorNotificationBuilder();
  52
  53             // Fill in the Node Error Notification Builder object from the Error
  54             // Message
  55
  56             nodeErrBuilder.setTransactionId(new TransactionId(BigInteger.valueOf(message.getXid())));
  57
  58             Object object = sc.getbulkTransactionCache().getIfPresent(new TransactionKey(message.getXid()));
  59             if (object != null) {
  60                 nodeErrBuilder.setTransactionUri(((TransactionMetadata) object).getTransactionUri());
  61                 FlowRefBuilder flowRef = new FlowRefBuilder();
  62                 GroupRefBuilder groupRef = new GroupRefBuilder();
  63                 MeterRefBuilder meterRef = new MeterRefBuilder();
  64                 if (object instanceof NodeFlow) {
  65                     FlowEntityData flowEntry = new FlowEntityData();
  66                     flowRef = flowEntry.getBuilder(object);
  67                     nodeErrBuilder.setObjectReference(flowRef.build());
  68                 } else if (object instanceof NodeGroup) {
  69                     GroupEntityData groupEntry = new GroupEntityData();
  70                     groupRef = groupEntry.getBuilder(object);
  71                     nodeErrBuilder.setObjectReference(groupRef.build());
  72
  73                 } else if (object instanceof NodeMeter) {
  74                     MeterEntityData meterEntry = new MeterEntityData();
  75                     meterRef = meterEntry.getBuilder(object);
  76                     nodeErrBuilder.setObjectReference(meterRef.build());
  77
  78                 }
  79
  80             }
  81
  82             nodeErrBuilder.setType(ErrorType.forValue(message.getType()));
  83
  84             nodeErrBuilder.setCode(message.getCode());
  85
  86             nodeErrBuilder.setData(new String(message.getData()));
  87
  88             // TODO -- Augmentation is not handled
  89
  90             // Note Error_TypeV10 is not handled.
  91
  92             NodeErrorNotification nodeErrorEvent = nodeErrBuilder.build();
  93             list.add(nodeErrorEvent);
  94             return list;
  95         } else {
  96             LOG.error("Message is not of Error Message ");
  97             return Collections.emptyList();
  98         }
  99     }
 100
 101 }