opendaylight/md-sal/compatibility/sal-compatibility/src/main/java/org/opendaylight/controller/sal/compatibility/ToSalConversionsUtils.java

   1 package org.opendaylight.controller.sal.compatibility;
   2
   3 import static org.opendaylight.controller.sal.compatibility.ProtocolConstants.CRUDP;
   4 import static org.opendaylight.controller.sal.compatibility.ProtocolConstants.ETHERNET_ARP;
   5 import static org.opendaylight.controller.sal.compatibility.ProtocolConstants.TCP;
   6 import static org.opendaylight.controller.sal.compatibility.ProtocolConstants.UDP;
   7 import static org.opendaylight.controller.sal.match.MatchType.DL_DST;
   8 import static org.opendaylight.controller.sal.match.MatchType.DL_SRC;
   9 import static org.opendaylight.controller.sal.match.MatchType.DL_TYPE;
  10 import static org.opendaylight.controller.sal.match.MatchType.DL_VLAN;
  11 import static org.opendaylight.controller.sal.match.MatchType.DL_VLAN_PR;
  12 import static org.opendaylight.controller.sal.match.MatchType.NW_DST;
  13 import static org.opendaylight.controller.sal.match.MatchType.NW_PROTO;
  14 import static org.opendaylight.controller.sal.match.MatchType.NW_SRC;
  15 import static org.opendaylight.controller.sal.match.MatchType.NW_TOS;
  16 import static org.opendaylight.controller.sal.match.MatchType.TP_DST;
  17 import static org.opendaylight.controller.sal.match.MatchType.TP_SRC;
  18
  19 import java.net.InetAddress;
  20 import java.util.ArrayList;
  21 import java.util.Collections;
  22 import java.util.List;
  23
  24 import org.opendaylight.controller.sal.action.Controller;
  25 import org.opendaylight.controller.sal.action.Drop;
  26 import org.opendaylight.controller.sal.action.Flood;
  27 import org.opendaylight.controller.sal.action.FloodAll;
  28 import org.opendaylight.controller.sal.action.HwPath;
  29 import org.opendaylight.controller.sal.action.Loopback;
  30 import org.opendaylight.controller.sal.action.Output;
  31 import org.opendaylight.controller.sal.action.PopVlan;
  32 import org.opendaylight.controller.sal.action.PushVlan;
  33 import org.opendaylight.controller.sal.action.SetDlDst;
  34 import org.opendaylight.controller.sal.action.SetDlSrc;
  35 import org.opendaylight.controller.sal.action.SetDlType;
  36 import org.opendaylight.controller.sal.action.SetNextHop;
  37 import org.opendaylight.controller.sal.action.SetNwDst;
  38 import org.opendaylight.controller.sal.action.SetNwSrc;
  39 import org.opendaylight.controller.sal.action.SetNwTos;
  40 import org.opendaylight.controller.sal.action.SetTpDst;
  41 import org.opendaylight.controller.sal.action.SetTpSrc;
  42 import org.opendaylight.controller.sal.action.SetVlanCfi;
  43 import org.opendaylight.controller.sal.action.SetVlanId;
  44 import org.opendaylight.controller.sal.action.SetVlanPcp;
  45 import org.opendaylight.controller.sal.action.SwPath;
  46 import org.opendaylight.controller.sal.core.Capabilities;
  47 import org.opendaylight.controller.sal.core.NodeConnector;
  48 import org.opendaylight.controller.sal.flowprogrammer.Flow;
  49 import org.opendaylight.controller.sal.match.Match;
  50 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Dscp;
  51 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
  52 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv6Prefix;
  53 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.PortNumber;
  54 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
  55 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.MacAddress;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.VlanCfi;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.ControllerActionCase;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.DropActionCase;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.FloodActionCase;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.FloodAllActionCase;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.HwPathActionCase;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.LoopbackActionCase;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.OutputActionCase;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.PopMplsActionCase;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.PopVlanActionCase;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.PushMplsActionCase;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.PushPbbActionCase;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.PushVlanActionCase;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetDlDstActionCase;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetDlSrcActionCase;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetDlTypeActionCase;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetMplsTtlActionCase;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetNextHopActionCase;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetNwDstActionCase;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetNwSrcActionCase;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetNwTosActionCase;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetNwTtlActionCase;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetQueueActionCase;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetTpDstActionCase;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetTpSrcActionCase;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetVlanCfiActionCase;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetVlanIdActionCase;
  83 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetVlanPcpActionCase;
  84 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SwPathActionCase;
  85 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.Action;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.address.Address;
  87 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.address.address.Ipv4;
  88 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.address.address.Ipv6;
  89 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FeatureCapability;
  90 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.ApplyActionsCase;
  91 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  92 import org.opendaylight.yang.gen.v1.urn.opendaylight.l2.types.rev130827.EtherType;
  93 import org.opendaylight.yang.gen.v1.urn.opendaylight.l2.types.rev130827.VlanPcp;
  94 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.MacAddressFilter;
  95 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.arp.match.fields.ArpSourceHardwareAddress;
  96 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.arp.match.fields.ArpTargetHardwareAddress;
  97 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.ethernet.match.fields.EthernetType;
  98 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.EthernetMatch;
  99 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.IpMatch;
 100 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.Layer3Match;
 101 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.Layer4Match;
 102 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.VlanMatch;
 103 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.ArpMatch;
 104 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv4Match;
 105 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6Match;
 106 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._4.match.SctpMatch;
 107 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._4.match.TcpMatch;
 108 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._4.match.UdpMatch;
 109 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.vlan.match.fields.VlanId;
 110
 111 import com.google.common.net.InetAddresses;
 112
 113 public class ToSalConversionsUtils {
 114
 115     private ToSalConversionsUtils() {
 116
 117     }
 118
 119     public static Flow toFlow(org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.Flow source) {
 120         final Flow target = new Flow();
 121
 122         Integer hardTimeout = source.getHardTimeout();
 123         if (hardTimeout != null) {
 124             target.setHardTimeout(hardTimeout.shortValue());
 125         }
 126
 127         Integer idleTimeout = source.getIdleTimeout();
 128         if (idleTimeout != null) {
 129             target.setIdleTimeout(idleTimeout.shortValue());
 130         }
 131
 132         Integer priority = source.getPriority();
 133         if (priority != null) {
 134             target.setPriority(priority.shortValue());
 135         }
 136
 137         target.setMatch(toMatch(source.getMatch()));
 138
 139         List<Action> actions = getAction(source);
 140         if (actions != null) {
 141             target.setActions(actionFrom(actions));
 142         }
 143
 144         target.setId(source.getCookie().longValue());
 145         return target;
 146     }
 147
 148     public static List<Action> getAction(
 149             org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.Flow source) {
 150         if (source.getInstructions() != null) {
 151             for (Instruction instruction : source.getInstructions().getInstruction()) {
 152                 if (instruction.getInstruction() instanceof ApplyActionsCase) {
 153                     return (((ApplyActionsCase) instruction.getInstruction()).getApplyActions().getAction());
 154                 }
 155             }
 156         }
 157         // TODO Auto-generated method stub
 158         return Collections.emptyList();
 159     }
 160
 161     public static List<org.opendaylight.controller.sal.action.Action> actionFrom(List<Action> actions) {
 162         List<org.opendaylight.controller.sal.action.Action> targetAction = new ArrayList<>();
 163         for (Action action : actions) {
 164                 org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action sourceAction = action
 165                     .getAction();
 166
 167             if (sourceAction instanceof ControllerActionCase) {
 168                 targetAction.add(new Controller());
 169             } else if (sourceAction instanceof OutputActionCase) {
 170
 171                 Uri nodeConnector = ((OutputActionCase) sourceAction).getOutputAction().getOutputNodeConnector();
 172                 if (nodeConnector != null) {
 173                     //for (Uri uri : nodeConnectors) {
 174                         targetAction.add(new Output(fromNodeConnectorRef(nodeConnector)));
 175                     //}
 176                 }
 177             } else if (sourceAction instanceof PopMplsActionCase) {
 178                 // TODO: define maping
 179             } else if (sourceAction instanceof PushMplsActionCase) {
 180                 // TODO: define maping
 181             } else if (sourceAction instanceof PushPbbActionCase) {
 182                 // TODO: define maping
 183             } else if (sourceAction instanceof SetMplsTtlActionCase) {
 184                 // TODO: define maping
 185                 // targetAction = //no action to map
 186             } else if (sourceAction instanceof SetNwTtlActionCase) {
 187                 // TODO: define maping
 188             } else if (sourceAction instanceof SetQueueActionCase) {
 189                 // TODO: define maping
 190                 // targetAction = //no action to map
 191             } else if (sourceAction instanceof DropActionCase) {
 192                 targetAction.add(new Drop());
 193             } else if (sourceAction instanceof FloodActionCase) {
 194                 targetAction.add(new Flood());
 195             } else if (sourceAction instanceof FloodAllActionCase) {
 196                 targetAction.add(new FloodAll());
 197             } else if (sourceAction instanceof HwPathActionCase) {
 198                 targetAction.add(new HwPath());
 199             } else if (sourceAction instanceof LoopbackActionCase) {
 200                 targetAction.add(new Loopback());
 201             } else if (sourceAction instanceof PopVlanActionCase) {
 202                 targetAction.add(new PopVlan());
 203             } else if (sourceAction instanceof PushVlanActionCase) {
 204                 PushVlanActionCase pushVlanAction = (PushVlanActionCase) sourceAction;
 205                 PushVlan pushVlan = pushVlanFrom(pushVlanAction.getPushVlanAction());
 206                 if (pushVlan != null) {
 207                     targetAction.add(pushVlan);
 208                 }
 209             } else if (sourceAction instanceof SetDlDstActionCase) {
 210                 MacAddress addressL2Dest = ((SetDlDstActionCase) sourceAction).getSetDlDstAction().getAddress();
 211                 if (addressL2Dest != null) {
 212                     targetAction.add(new SetDlDst(bytesFrom(addressL2Dest)));
 213                 }
 214             } else if (sourceAction instanceof SetDlSrcActionCase) {
 215                 MacAddress addressL2Src = ((SetDlSrcActionCase) sourceAction).getSetDlSrcAction().getAddress();
 216                 if (addressL2Src != null) {
 217                     targetAction.add(new SetDlSrc(bytesFrom(addressL2Src)));
 218
 219                 }
 220             } else if (sourceAction instanceof SetDlTypeActionCase) {
 221                 EtherType dlType = ((SetDlTypeActionCase) sourceAction).getSetDlTypeAction().getDlType();
 222                 if (dlType != null) {
 223                     Long dlTypeValue = dlType.getValue();
 224                     if (dlTypeValue != null) {
 225                         targetAction.add(new SetDlType(dlTypeValue.intValue()));
 226                     }
 227                 }
 228             } else if (sourceAction instanceof SetNextHopActionCase) {
 229                 Address addressL3 = ((SetNextHopActionCase) sourceAction).getSetNextHopAction().getAddress();
 230
 231                 InetAddress inetAddress = inetAddressFrom(addressL3);
 232                 if (inetAddress != null) {
 233                     targetAction.add(new SetNextHop(inetAddress));
 234                 }
 235             } else if (sourceAction instanceof SetNwDstActionCase) {
 236                 Address addressL3 = ((SetNwDstActionCase) sourceAction).getSetNwDstAction().getAddress();
 237
 238                 InetAddress inetAddress = inetAddressFrom(addressL3);
 239                 if (inetAddress != null) {
 240                     targetAction.add(new SetNwDst(inetAddress));
 241                 }
 242             } else if (sourceAction instanceof SetNwSrcActionCase) {
 243                 Address addressL3 = ((SetNwSrcActionCase) sourceAction).getSetNwSrcAction().getAddress();
 244
 245                 InetAddress inetAddress = inetAddressFrom(addressL3);
 246                 if (inetAddress != null) {
 247                     targetAction.add(new SetNwSrc(inetAddress));
 248                 }
 249             } else if (sourceAction instanceof SetNwTosActionCase) {
 250                 Integer tos = ((SetNwTosActionCase) sourceAction).getSetNwTosAction().getTos();
 251                 if (tos != null) {
 252                     targetAction.add(new SetNwTos(tos));
 253                 }
 254             } else if (sourceAction instanceof SetTpDstActionCase) {
 255                 PortNumber port = ((SetTpDstActionCase) sourceAction).getSetTpDstAction().getPort();
 256                 if (port != null) {
 257                     Integer portValue = port.getValue();
 258                     if (port.getValue() != null) {
 259                         targetAction.add(new SetTpDst(portValue));
 260                     }
 261                 }
 262             } else if (sourceAction instanceof SetTpSrcActionCase) {
 263                 PortNumber port = ((SetTpSrcActionCase) sourceAction).getSetTpSrcAction().getPort();
 264                 if (port != null) {
 265                     Integer portValue = port.getValue();
 266                     if (port.getValue() != null) {
 267                         targetAction.add(new SetTpSrc(portValue));
 268                     }
 269                 }
 270             } else if (sourceAction instanceof SetVlanCfiActionCase) {
 271                 VlanCfi vlanCfi = ((SetVlanCfiActionCase) sourceAction).getSetVlanCfiAction().getVlanCfi();
 272                 if (vlanCfi != null) {
 273                     Integer vlanCfiValue = vlanCfi.getValue();
 274                     if (vlanCfiValue != null) {
 275                         targetAction.add(new SetVlanCfi(vlanCfiValue));
 276                     }
 277                 }
 278             } else if (sourceAction instanceof SetVlanIdActionCase) {
 279                 org.opendaylight.yang.gen.v1.urn.opendaylight.l2.types.rev130827.VlanId vlanID = ((SetVlanIdActionCase) sourceAction).getSetVlanIdAction()
 280                         .getVlanId();
 281                 if (vlanID != null) {
 282                     Integer vlanIdValue = vlanID.getValue();
 283                     if (vlanIdValue != null) {
 284                         targetAction.add(new SetVlanId(vlanIdValue));
 285                     }
 286                 }
 287             } else if (sourceAction instanceof SetVlanPcpActionCase) {
 288                 VlanPcp vlanPcp = ((SetVlanPcpActionCase) sourceAction).getSetVlanPcpAction().getVlanPcp();
 289                 if (vlanPcp != null) {
 290                     Short vlanPcpValue = vlanPcp.getValue();
 291                     if (vlanPcpValue != null) {
 292                         targetAction.add(new SetVlanPcp(vlanPcpValue));
 293                     }
 294                 }
 295             } else if (sourceAction instanceof SwPathActionCase) {
 296                 targetAction.add(new SwPath());
 297             }
 298         }
 299
 300         return targetAction;
 301     }
 302
 303     private static InetAddress inetAddressFrom(Address addressL3) {
 304         if (addressL3 != null) {
 305             if (addressL3 instanceof Ipv4) {
 306                 Ipv4Prefix addressL3Ipv4 = ((Ipv4) addressL3).getIpv4Address();
 307                 if (addressL3Ipv4 != null) {
 308                     return inetAddressFrom(addressL3Ipv4);
 309                 }
 310             } else if (addressL3 instanceof Ipv6) {
 311                 Ipv6Prefix addressL3Ipv6 = ((Ipv6) addressL3).getIpv6Address();
 312                 if (addressL3Ipv6 != null) {
 313                     return inetAddressFrom(addressL3Ipv6);
 314                 }
 315             }
 316         }
 317         return null;
 318     }
 319
 320     private static PushVlan pushVlanFrom(org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.push.vlan.action._case.PushVlanAction pushVlanAction) {
 321         final int tag;
 322         final int pcp;
 323         final int cfi;
 324         final int vlanId;
 325
 326         if (pushVlanAction.getTag() != null) {
 327             tag = pushVlanAction.getTag();
 328             if (pushVlanAction.getPcp() != null) {
 329                 pcp = pushVlanAction.getPcp();
 330                 if (pushVlanAction.getCfi() != null && pushVlanAction.getCfi().getValue() != null) {
 331                     cfi = pushVlanAction.getCfi().getValue();
 332                     if (pushVlanAction.getVlanId() != null && pushVlanAction.getVlanId().getValue() != null) {
 333                         vlanId = pushVlanAction.getVlanId().getValue();
 334                         return new PushVlan(tag, pcp, cfi, vlanId);
 335                     }
 336                 }
 337             }
 338         }
 339         return null;
 340     }
 341
 342     private static NodeConnector fromNodeConnectorRef(Uri uri) {
 343         // TODO: Define mapping
 344         return null;
 345     }
 346
 347     public static Match toMatch(org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Match source) {
 348         Match target = new Match();
 349         if (source != null) {
 350             fillFrom(target, source.getVlanMatch());
 351             fillFrom(target, source.getEthernetMatch());
 352             fillFrom(target, source.getLayer3Match());
 353             fillFrom(target, source.getLayer4Match());
 354             fillFrom(target, source.getIpMatch());
 355         }
 356
 357         return target;
 358     }
 359
 360     private static void fillFrom(Match target, VlanMatch vlanMatch) {
 361         if (vlanMatch != null) {
 362             VlanId vlanId = vlanMatch.getVlanId();
 363             if (vlanId != null) {
 364                 org.opendaylight.yang.gen.v1.urn.opendaylight.l2.types.rev130827.VlanId vlanIdInner = vlanId
 365                         .getVlanId();
 366                 if (vlanIdInner != null) {
 367                     Integer vlanValue = vlanIdInner.getValue();
 368                     if (vlanValue != null) {
 369                         target.setField(DL_VLAN, vlanValue.shortValue());
 370                     }
 371                 }
 372             }
 373             VlanPcp vlanPcp = vlanMatch.getVlanPcp();
 374             if (vlanPcp != null) {
 375                 Short vlanPcpValue = vlanPcp.getValue();
 376                 if (vlanPcpValue != null) {
 377                     target.setField(DL_VLAN_PR, vlanPcpValue.byteValue());
 378                 }
 379             }
 380         }
 381     }
 382
 383     private static void fillFrom(Match target, IpMatch ipMatch) {
 384         if (ipMatch != null) {
 385             Short ipProtocol = ipMatch.getIpProtocol();
 386
 387             if (ipProtocol != null && target.getField(NW_PROTO) == null) {
 388                 target.setField(NW_PROTO, ipProtocol.byteValue());
 389             }
 390             Dscp dscp = ipMatch.getIpDscp();
 391             if (dscp != null) {
 392                 Short dscpValue = dscp.getValue();
 393                 if (dscpValue != null) {
 394                     target.setField(NW_TOS, dscpValue.byteValue());
 395                 }
 396             }
 397         }
 398     }
 399
 400     private static void fillFrom(Match target, Layer4Match layer4Match) {
 401         if (layer4Match == null) {
 402             return;
 403         }
 404         if (layer4Match instanceof SctpMatch) {
 405             fillTransportLayer(target, (SctpMatch) layer4Match);
 406         } else if (layer4Match instanceof TcpMatch) {
 407             fillTransportLayer(target, (TcpMatch) layer4Match);
 408         } else if (layer4Match instanceof UdpMatch) {
 409             fillTransportLayer(target, (UdpMatch) layer4Match);
 410         }
 411     }
 412
 413     private static void fillTransportLayer(Match target, UdpMatch source) {
 414         PortNumber udpSourcePort = source.getUdpSourcePort();
 415         if (udpSourcePort != null) {
 416             Integer udpSourcePortValue = udpSourcePort.getValue();
 417             if (udpSourcePortValue != null) {
 418                 target.setField(TP_SRC, udpSourcePortValue.shortValue());
 419             }
 420         }
 421
 422         PortNumber udpDestPort = source.getUdpDestinationPort();
 423         if (udpDestPort != null) {
 424             Integer udpDestPortValue = udpDestPort.getValue();
 425             if (udpDestPortValue != null) {
 426                 target.setField(TP_DST, udpDestPortValue.shortValue());
 427             }
 428         }
 429
 430         target.setField(NW_PROTO, UDP);
 431     }
 432
 433     private static void fillTransportLayer(Match target, TcpMatch source) {
 434         PortNumber tcpSourcePort = source.getTcpSourcePort();
 435         if (tcpSourcePort != null) {
 436             Integer tcpSourcePortValue = tcpSourcePort.getValue();
 437             if (tcpSourcePortValue != null) {
 438                 target.setField(TP_SRC, tcpSourcePortValue.shortValue());
 439             }
 440         }
 441
 442         PortNumber tcpDestPort = source.getTcpDestinationPort();
 443         if (tcpDestPort != null) {
 444             Integer tcpDestPortValue = tcpDestPort.getValue();
 445             if (tcpDestPortValue != null) {
 446                 target.setField(TP_DST, tcpDestPortValue.shortValue());
 447             }
 448         }
 449
 450         target.setField(NW_PROTO, TCP);
 451     }
 452
 453     private static void fillTransportLayer(Match target, SctpMatch source) {
 454         PortNumber sctpSourcePort = source.getSctpSourcePort();
 455         if (sctpSourcePort != null) {
 456             Integer sctpSourcePortValue = sctpSourcePort.getValue();
 457             if (sctpSourcePortValue != null) {
 458                 target.setField(TP_SRC, sctpSourcePortValue.shortValue());
 459             }
 460         }
 461         PortNumber sctpDestPort = source.getSctpDestinationPort();
 462         if (sctpDestPort != null) {
 463             Integer sctpDestPortValue = sctpDestPort.getValue();
 464             if (sctpDestPortValue != null) {
 465                 target.setField(TP_DST, sctpDestPortValue.shortValue());
 466             }
 467         }
 468
 469         target.setField(NW_PROTO, CRUDP);
 470
 471     }
 472
 473     private static void fillFrom(Match target, Layer3Match source) {
 474         if (source == null)
 475             return;
 476         if (source instanceof Ipv4Match) {
 477             fillFromIpv4(target, (Ipv4Match) source);
 478         } else if (source instanceof Ipv6Match) {
 479             fillFromIpv6(target, (Ipv6Match) source);
 480         } else if (source instanceof ArpMatch) {
 481             fillFromArp(target, (ArpMatch) source);
 482         }
 483     }
 484
 485     private static void fillFromArp(Match target, ArpMatch source) {
 486         Ipv4Prefix sourceAddress = source.getArpSourceTransportAddress();
 487         if (sourceAddress != null) {
 488             target.setField(NW_SRC, inetAddressFrom(sourceAddress), null);
 489         }
 490         Ipv4Prefix destAddress = source.getArpTargetTransportAddress();
 491         if (destAddress != null) {
 492             target.setField(NW_DST, inetAddressFrom(destAddress), null);
 493         }
 494         ArpSourceHardwareAddress sourceHwAddress = source.getArpSourceHardwareAddress();
 495         if (sourceHwAddress != null) {
 496             target.setField(DL_SRC, bytesFrom(sourceHwAddress.getAddress()));
 497         }
 498         ArpTargetHardwareAddress targetHwAddress = source.getArpTargetHardwareAddress();
 499         if (targetHwAddress != null) {
 500             target.setField(DL_DST, bytesFrom(targetHwAddress.getAddress()));
 501         }
 502
 503         target.setField(DL_TYPE, new Short(ETHERNET_ARP));
 504
 505     }
 506
 507     private static void fillFromIpv6(Match target, Ipv6Match source) {
 508         Ipv6Prefix sourceAddress = source.getIpv6Source();
 509         if (sourceAddress != null) {
 510             target.setField(NW_SRC, inetAddressFrom(sourceAddress), null);
 511         }
 512         Ipv6Prefix destAddress = source.getIpv6Destination();
 513         if (destAddress != null) {
 514             target.setField(NW_DST, inetAddressFrom(destAddress), null);
 515         }
 516     }
 517
 518     private static void fillFromIpv4(Match target, Ipv4Match source) {
 519         Ipv4Prefix sourceAddress = source.getIpv4Source();
 520         if (sourceAddress != null) {
 521             target.setField(NW_SRC, inetAddressFrom(sourceAddress), null);
 522         }
 523         Ipv4Prefix destAddress = source.getIpv4Destination();
 524         if (destAddress != null) {
 525             target.setField(NW_DST, inetAddressFrom(destAddress), null);
 526         }
 527     }
 528
 529     private static InetAddress inetAddressFrom(Ipv4Prefix source) {
 530         if (source != null) {
 531             String[] parts = source.getValue().split("/");
 532             return InetAddresses.forString(parts[0]);
 533         }
 534         return null;
 535     }
 536
 537     private static InetAddress inetAddressFrom(Ipv6Prefix source) {
 538         if (source != null) {
 539             String[] parts = source.getValue().split("/");
 540             return InetAddresses.forString(parts[0]);
 541         }
 542         return null;
 543     }
 544
 545     private static void fillFrom(Match target, EthernetMatch source) {
 546         if (source == null)
 547             return;
 548         EthernetType ethType = source.getEthernetType();
 549         if (ethType != null) {
 550             EtherType ethInnerType = ethType.getType();
 551             if (ethInnerType != null && target.getField(DL_TYPE) == null) {
 552                 Long value = ethInnerType.getValue();
 553                 target.setField(DL_TYPE, value.shortValue());
 554             }
 555         }
 556
 557         MacAddressFilter ethSource = source.getEthernetSource();
 558         if (ethSource != null) {
 559             target.setField(DL_SRC, bytesFrom(ethSource.getAddress()));
 560         }
 561
 562         MacAddressFilter ethDest = source.getEthernetDestination();
 563         if (ethDest != null) {
 564             target.setField(DL_DST, bytesFrom(ethDest.getAddress()));
 565         }
 566     }
 567
 568     public static byte[] bytesFrom(MacAddress address) {
 569         String[] mac = address.getValue().split(":");
 570         byte[] macAddress = new byte[6]; // mac.length == 6 bytes
 571         for (int i = 0; i < mac.length; i++) {
 572             macAddress[i] = Integer.decode("0x" + mac[i]).byteValue();
 573         }
 574         return macAddress;
 575     }
 576
 577     public static byte[] bytesFromDpid(long dpid) {
 578         byte[] mac = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
 579
 580         for (short i = 0; i < 6; i++) {
 581             mac[5 - i] = (byte) dpid;
 582             dpid >>= 8;
 583         }
 584
 585         return mac;
 586     }
 587 }