openflowplugin/src/main/java/org/opendaylight/openflowplugin/openflow/md/core/sal/convertor/FlowConvertor.java

   1 /**
   2  * Copyright (c) 2013 Ericsson. 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
   9 package org.opendaylight.openflowplugin.openflow.md.core.sal.convertor;
  10
  11 import com.google.common.base.Objects;
  12 import com.google.common.base.Optional;
  13 import com.google.common.collect.Ordering;
  14
  15 import org.opendaylight.openflowplugin.api.OFConstants;
  16 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.OrderComparator;
  17 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.flowflag.FlowFlagReactor;
  18 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.match.MatchReactor;
  19 import org.opendaylight.openflowplugin.openflow.md.util.ByteUtil;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.VlanCfi;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.PushVlanActionCase;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.PushVlanActionCaseBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetVlanIdActionCase;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.push.vlan.action._case.PushVlanActionBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowInput;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowInputBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.RemoveFlowInput;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.RemoveFlowInputBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.flow.update.UpdatedFlow;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.flow.update.UpdatedFlowBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.Flow;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Instructions;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Match;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.ApplyActionsCase;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.ApplyActionsCaseBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.ClearActionsCase;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.GoToTableCase;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.MeterCase;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.WriteActionsCase;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.WriteMetadataCase;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.apply.actions._case.ApplyActions;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.apply.actions._case.ApplyActionsBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.clear.actions._case.ClearActions;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.go.to.table._case.GoToTable;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.meter._case.Meter;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.write.actions._case.WriteActions;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.write.metadata._case.WriteMetadata;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.l2.types.rev130827.VlanId;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.VlanMatch;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.VlanMatchBuilder;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.vlan.match.fields.VlanIdBuilder;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.ActionsInstruction;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.ActionsInstructionBuilder;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.MetadataInstruction;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.MetadataInstructionBuilder;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.MeterIdInstruction;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.MeterIdInstructionBuilder;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.TableIdInstruction;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.TableIdInstructionBuilder;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev130731.actions.grouping.Action;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.instructions.grouping.Instruction;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.instructions.grouping.InstructionBuilder;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowModCommand;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MatchTypeBase;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.TableId;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.OxmMatchType;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.grouping.MatchEntries;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowModInputBuilder;
  73 import org.slf4j.Logger;
  74 import org.slf4j.LoggerFactory;
  75
  76 import java.math.BigInteger;
  77 import java.util.ArrayList;
  78 import java.util.List;
  79
  80 /**
  81  * Utility class for converting a MD-SAL Flow into the OF flow mod
  82  */
  83 public class FlowConvertor {
  84     private static final Logger logger = LoggerFactory.getLogger(FlowConvertor.class);
  85
  86     // Default values for when things are null
  87     private static final BigInteger DEFAULT_COOKIE = BigInteger.ZERO;
  88     private static final BigInteger DEFAULT_COOKIE_MASK = BigInteger.ZERO;
  89     private static final TableId DEFAULT_TABLE_ID = new TableId(0L);
  90     private static final Integer DEFAULT_IDLE_TIMEOUT = 5 * 60;
  91     private static final Integer DEFAULT_HARD_TIMEOUT = 10 * 60;
  92     private static final Integer DEFAULT_PRIORITY = Integer.parseInt("8000", 16);
  93     private static final Long DEFAULT_BUFFER_ID = Long.parseLong("ffffffff", 16);
  94     private static final Long OFPP_ANY = Long.parseLong("ffffffff", 16);
  95     private static final Long DEFAULT_OUT_PORT = OFPP_ANY;
  96     private static final Long OFPG_ANY = Long.parseLong("ffffffff", 16);
  97     private static final Long DEFAULT_OUT_GROUP = OFPG_ANY;
  98     /** flow flag: remove */
  99     public static final boolean DEFAULT_OFPFF_FLOW_REM = true;
 100     /** flow flag: check overlap */
 101     public static final boolean DEFAULT_OFPFF_CHECK_OVERLAP = false;
 102     /** flow flag: reset counts */
 103     public static final boolean DEFAULT_OFPFF_RESET_COUNTS = false;
 104     /** flow flag: don't keep track of packet counts */
 105     public static final boolean DEFAULT_OFPFF_NO_PKT_COUNTS = false;
 106     /** flow flag: don't keep track of byte counts */
 107     public static final boolean DEFAULT_OFPFF_NO_BYT_COUNTS = false;
 108     /** flow flag: emergency [OFP-1.0] */
 109     public static final boolean DEFAULT_OFPFF_EMERGENCY = false;
 110     /** OxmMatch type */
 111     public static final Class<? extends MatchTypeBase> DEFAULT_MATCH_TYPE = OxmMatchType.class;
 112     /** default match entries - empty */
 113     public static final List<MatchEntries> DEFAULT_MATCH_ENTRIES = new ArrayList<MatchEntries>();
 114
 115
 116     /**
 117      * This method converts the SAL Flow to OF Flow.
 118      * It checks if there is a set-vlan-id (1.0) action made on OF1.3.
 119      * If yes its handled separately
 120      */
 121     public static List<FlowModInputBuilder> toFlowModInputs(Flow srcFlow, short version, BigInteger datapathId) {
 122         List<FlowModInputBuilder> list = new ArrayList<>();
 123
 124         if (version >= OFConstants.OFP_VERSION_1_3 && isSetVlanIdActionCasePresent(srcFlow)) {
 125             list.addAll(handleSetVlanIdForOF13(srcFlow, version, datapathId));
 126         } else {
 127             list.add(toFlowModInput(srcFlow, version, datapathId));
 128         }
 129         return list;
 130     }
 131
 132     public static FlowModInputBuilder toFlowModInput(Flow flow, short version, BigInteger datapathid) {
 133
 134         FlowModInputBuilder flowMod = new FlowModInputBuilder();
 135         if (flow.getCookie() != null) {
 136             flowMod.setCookie(flow.getCookie().getValue());
 137         } else {
 138             flowMod.setCookie(DEFAULT_COOKIE);
 139         }
 140
 141         if (flow.getCookieMask() != null) {
 142             flowMod.setCookieMask(flow.getCookieMask().getValue());
 143         } else {
 144             flowMod.setCookieMask(DEFAULT_COOKIE_MASK);
 145         }
 146
 147         if (flow.getTableId() != null) {
 148             flowMod.setTableId(new TableId(flow.getTableId().longValue()));
 149         } else {
 150             flowMod.setTableId(DEFAULT_TABLE_ID);
 151         }
 152
 153         if (flow instanceof AddFlowInput) {
 154             flowMod.setCommand(FlowModCommand.OFPFCADD);
 155         } else if (flow instanceof RemoveFlowInput) {
 156             if (Objects.firstNonNull(flow.isStrict(), Boolean.FALSE)) {
 157                 flowMod.setCommand(FlowModCommand.OFPFCDELETESTRICT);
 158             } else {
 159                 flowMod.setCommand(FlowModCommand.OFPFCDELETE);
 160             }
 161         } else if (flow instanceof UpdatedFlow) {
 162             if (Objects.firstNonNull(flow.isStrict(), Boolean.FALSE)) {
 163                 flowMod.setCommand(FlowModCommand.OFPFCMODIFYSTRICT);
 164             } else {
 165                 flowMod.setCommand(FlowModCommand.OFPFCMODIFY);
 166             }
 167         }
 168
 169         if (flow.getIdleTimeout() != null) {
 170             flowMod.setIdleTimeout(flow.getIdleTimeout());
 171         } else {
 172             flowMod.setIdleTimeout(DEFAULT_IDLE_TIMEOUT);
 173         }
 174         if (flow.getHardTimeout() != null) {
 175             flowMod.setHardTimeout(flow.getHardTimeout());
 176         } else {
 177             flowMod.setHardTimeout(DEFAULT_HARD_TIMEOUT);
 178         }
 179         if (flow.getPriority() != null) {
 180             flowMod.setPriority(flow.getPriority());
 181         } else {
 182             flowMod.setPriority(DEFAULT_PRIORITY);
 183         }
 184         if (flow.getBufferId() != null) {
 185             flowMod.setBufferId(flow.getBufferId());
 186         } else {
 187             flowMod.setBufferId(DEFAULT_BUFFER_ID);
 188         }
 189
 190         if (flow.getOutPort() != null) {
 191             flowMod.setOutPort(new PortNumber(flow.getOutPort().longValue()));
 192         } else {
 193             flowMod.setOutPort(new PortNumber(DEFAULT_OUT_PORT));
 194         }
 195         if (flow.getOutGroup() != null) {
 196             flowMod.setOutGroup(flow.getOutGroup());
 197         } else {
 198             flowMod.setOutGroup(DEFAULT_OUT_GROUP);
 199         }
 200
 201
 202         // convert and inject flowFlags
 203         FlowFlagReactor.getInstance().convert(flow.getFlags(), version, flowMod,datapathid);
 204
 205         // convert and inject match
 206         MatchReactor.getInstance().convert(flow.getMatch(), version, flowMod,datapathid);
 207
 208         if (flow.getInstructions() != null) {
 209             flowMod.setInstruction(toInstructions(flow, version,datapathid));
 210             flowMod.setAction(getActions(version,datapathid, flow));
 211         }
 212         flowMod.setVersion(version);
 213
 214         return flowMod;
 215     }
 216
 217     private static List<Instruction> toInstructions(
 218             Flow flow,
 219             short version,BigInteger datapathid) {
 220         List<Instruction> instructionsList = new ArrayList<>();
 221
 222         org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Instructions instructions = flow.getInstructions();
 223         for (org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction instruction : instructions
 224                 .getInstruction()) {
 225             InstructionBuilder instructionBuilder = new InstructionBuilder();
 226             org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction curInstruction = instruction
 227                     .getInstruction();
 228             if (curInstruction instanceof GoToTableCase) {
 229                 GoToTableCase goToTablecase = (GoToTableCase) curInstruction;
 230                 GoToTable goToTable = goToTablecase.getGoToTable();
 231                 instructionBuilder
 232                         .setType(org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.GotoTable.class);
 233                 TableIdInstructionBuilder tableBuilder = new TableIdInstructionBuilder();
 234                 tableBuilder.setTableId(goToTable.getTableId());
 235                 instructionBuilder.addAugmentation(TableIdInstruction.class, tableBuilder.build());
 236                 instructionsList.add(instructionBuilder.build());
 237             }
 238
 239             else if (curInstruction instanceof WriteMetadataCase) {
 240                 WriteMetadataCase writeMetadatacase = (WriteMetadataCase) curInstruction;
 241                 WriteMetadata writeMetadata = writeMetadatacase.getWriteMetadata();
 242                 instructionBuilder
 243                         .setType(org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.WriteMetadata.class);
 244                 MetadataInstructionBuilder metadataBuilder = new MetadataInstructionBuilder();
 245                 metadataBuilder.setMetadata(ByteUtil.convertBigIntegerToNBytes(writeMetadata.getMetadata(),
 246                                                                                OFConstants.SIZE_OF_LONG_IN_BYTES));
 247                 metadataBuilder
 248                         .setMetadataMask(ByteUtil.convertBigIntegerToNBytes(writeMetadata.getMetadataMask(),
 249                                                                             OFConstants.SIZE_OF_LONG_IN_BYTES));
 250                 instructionBuilder.addAugmentation(MetadataInstruction.class, metadataBuilder.build());
 251                 instructionsList.add(instructionBuilder.build());
 252             }
 253
 254             else if (curInstruction instanceof WriteActionsCase) {
 255                 WriteActionsCase writeActionscase = (WriteActionsCase) curInstruction;
 256                 WriteActions writeActions = writeActionscase.getWriteActions();
 257                 instructionBuilder
 258                         .setType(org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.WriteActions.class);
 259                 ActionsInstructionBuilder actionsInstructionBuilder = new ActionsInstructionBuilder();
 260                 actionsInstructionBuilder.setAction(ActionConvertor.getActions(writeActions.getAction(),
 261                         version,datapathid, flow));
 262                 instructionBuilder.addAugmentation(ActionsInstruction.class, actionsInstructionBuilder.build());
 263                 instructionsList.add(instructionBuilder.build());
 264             }
 265
 266             else if (curInstruction instanceof ApplyActionsCase) {
 267                 ApplyActionsCase applyActionscase = (ApplyActionsCase) curInstruction;
 268                 ApplyActions applyActions = applyActionscase.getApplyActions();
 269                 instructionBuilder
 270                         .setType(org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.ApplyActions.class);
 271                 ActionsInstructionBuilder actionsInstructionBuilder = new ActionsInstructionBuilder();
 272                 actionsInstructionBuilder.setAction(ActionConvertor.getActions(applyActions.getAction(),
 273                         version,datapathid, flow));
 274                 instructionBuilder.addAugmentation(ActionsInstruction.class, actionsInstructionBuilder.build());
 275                 instructionsList.add(instructionBuilder.build());
 276             }
 277
 278             else if (curInstruction instanceof ClearActionsCase) {
 279                 ClearActionsCase clearActionscase = (ClearActionsCase) curInstruction;
 280                 ClearActions clearActions = clearActionscase.getClearActions();
 281                 instructionBuilder
 282                         .setType(org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.ClearActions.class);
 283                 instructionsList.add(instructionBuilder.build());
 284             }
 285
 286             else if (curInstruction instanceof MeterCase) {
 287                 MeterCase metercase = (MeterCase) curInstruction;
 288                 Meter meter = metercase.getMeter();
 289                 instructionBuilder
 290                         .setType(org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.Meter.class);
 291                 MeterIdInstructionBuilder meterBuilder = new MeterIdInstructionBuilder();
 292                 Long meterId = meter.getMeterId().getValue();
 293                 meterBuilder.setMeterId(meterId);
 294                 instructionBuilder.addAugmentation(MeterIdInstruction.class, meterBuilder.build());
 295                 instructionsList.add(instructionBuilder.build());
 296             }
 297         }
 298         return instructionsList;
 299     }
 300
 301     /*private static List<Action> getActions(
 302             org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Instructions instructions,
 303             short version,BigInteger datapathid) {*/
 304     private static List<Action> getActions(short version,BigInteger datapathid, Flow flow) {
 305
 306         org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Instructions instructions = flow.getInstructions();
 307         List<org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction> sortedInstructions =
 308             Ordering.from(OrderComparator.<org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction>toInstance())
 309                 .sortedCopy(instructions.getInstruction());
 310
 311         for (org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction instruction : sortedInstructions) {
 312             org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction curInstruction = instruction
 313                     .getInstruction();
 314
 315             if (curInstruction instanceof ApplyActionsCase) {
 316                 ApplyActionsCase applyActionscase = (ApplyActionsCase) curInstruction;
 317                 ApplyActions applyActions = applyActionscase.getApplyActions();
 318                 return ActionConvertor.getActions(applyActions.getAction(), version,datapathid, flow);
 319             }
 320         }
 321         return null;
 322     }
 323
 324     // check if set vlanid action is present in the flow
 325     private static boolean isSetVlanIdActionCasePresent(Flow flow) {
 326         boolean isPresent = false;
 327         // we are trying to find if there is a set-vlan-id action (OF1.0) action present in the flow.
 328         // If yes,then we would need to two flows
 329         if (flow.getInstructions() != null) {
 330             for (org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction instruction :
 331                 flow.getInstructions().getInstruction()) {
 332                 org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction curInstruction =
 333                     instruction.getInstruction();
 334
 335                 if (curInstruction instanceof ApplyActionsCase) {
 336                     ApplyActionsCase applyActionscase = (ApplyActionsCase) curInstruction;
 337                     ApplyActions applyActions = applyActionscase.getApplyActions();
 338                     for (org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.Action action :
 339                             applyActions.getAction()) {
 340                         if (action.getAction() instanceof SetVlanIdActionCase) {
 341                             isPresent = true;
 342                             break;
 343                         }
 344                     }
 345                 }
 346             }
 347         }
 348         return isPresent;
 349     }
 350
 351
 352     /**
 353      * A) If user provided flow's match includes vlan match  and action has set_vlan_field
 354      * Install following rules
 355      *   1) match on (OFPVID_PRESENT |value) without mask + action [set_field]
 356      *
 357      * B) if user provided flow's match doesn't include vlan match but action has set_vlan field
 358      *    1) Match on (OFPVID_NONE ) without mask + action [push vlan tag + set_field]
 359      *    2) Match on (OFPVID_PRESENT) with mask (OFPVID_PRESENT ) + action [ set_field]
 360      */
 361     private static List<FlowModInputBuilder> handleSetVlanIdForOF13(Flow srcFlow, short version, BigInteger datapathId) {
 362         List<FlowModInputBuilder> list = new ArrayList<>();
 363
 364         VlanMatch srcVlanMatch = srcFlow.getMatch().getVlanMatch();
 365         boolean hasVlanMatch = (srcFlow.getMatch() != null && srcVlanMatch != null);
 366         if (hasVlanMatch) {
 367             //create flow with setfield and match
 368             // match on vlan tag or vlanid with no mask
 369             VlanMatchBuilder vlanMatchBuilder = new VlanMatchBuilder(srcVlanMatch);
 370             VlanIdBuilder vlanIdBuilder = new VlanIdBuilder();
 371             vlanIdBuilder.setVlanIdPresent(srcVlanMatch.getVlanId().isVlanIdPresent());
 372             vlanIdBuilder.setVlanId(srcVlanMatch.getVlanId().getVlanId());
 373             vlanMatchBuilder.setVlanId(vlanIdBuilder.build());
 374             Match match = new MatchBuilder(srcFlow.getMatch()).setVlanMatch(vlanMatchBuilder.build()).build();
 375
 376             Optional<? extends Flow> optional = injectMatchToFlow(srcFlow, match);
 377             if (optional.isPresent()) {
 378                 list.add(toFlowModInput(optional.get(), version, datapathId));
 379             }
 380         } else {
 381             // create 2 flows
 382             //flow 1
 383             // match on no vlan tag with no mask
 384             VlanMatchBuilder vlanMatchBuilder = new VlanMatchBuilder();
 385             VlanIdBuilder vlanIdBuilder = new VlanIdBuilder();
 386             vlanIdBuilder.setVlanIdPresent(false);
 387             vlanIdBuilder.setVlanId(new VlanId(0));
 388             vlanMatchBuilder.setVlanId(vlanIdBuilder.build());
 389             Match match1 = new MatchBuilder(srcFlow.getMatch()).setVlanMatch(vlanMatchBuilder.build()).build();
 390
 391             Optional<? extends Flow> optional1 = injectMatchAndAction(srcFlow, match1);
 392             if (optional1.isPresent()) {
 393                 list.add(toFlowModInput(optional1.get(), version, datapathId));
 394             }
 395
 396             //flow2
 397             // match on vlan tag with mask
 398             VlanMatchBuilder vlanMatchBuilder2 = new VlanMatchBuilder();
 399             VlanIdBuilder vlanIdBuilder2 = new VlanIdBuilder();
 400             vlanIdBuilder2.setVlanIdPresent(true);
 401             vlanIdBuilder2.setVlanId(new VlanId(0));
 402             vlanMatchBuilder2.setVlanId(vlanIdBuilder2.build());
 403             Match match2 = new MatchBuilder(srcFlow.getMatch()).setVlanMatch(vlanMatchBuilder2.build()).build();
 404             Optional<? extends Flow> optional2 = injectMatchToFlow(srcFlow, match2);
 405             if (optional2.isPresent()) {
 406                 list.add(toFlowModInput(optional2.get(), version, datapathId));
 407             }
 408         }
 409         return list;
 410     }
 411
 412
 413     private static Optional<? extends Flow> injectMatchToFlow(Flow sourceFlow, Match match) {
 414         if (sourceFlow instanceof AddFlowInput) {
 415             return Optional.<AddFlowInput>of(new AddFlowInputBuilder(sourceFlow).setMatch(match).build());
 416         } else if (sourceFlow instanceof RemoveFlowInput) {
 417             return Optional.<RemoveFlowInput>of(new RemoveFlowInputBuilder(sourceFlow).setMatch(match).build());
 418         } else if (sourceFlow instanceof UpdatedFlow) {
 419             return Optional.<UpdatedFlow>of(new UpdatedFlowBuilder(sourceFlow).setMatch(match).build());
 420         } else {
 421             return Optional.<Flow>absent();
 422         }
 423     }
 424
 425     private static Optional<? extends Flow> injectMatchAndAction(Flow sourceFlow, Match match) {
 426
 427         Instructions instructions = (new InstructionsBuilder())
 428             .setInstruction(injectPushActionToInstruction(sourceFlow))
 429             .build();
 430
 431         if (sourceFlow instanceof AddFlowInput) {
 432             return Optional.<AddFlowInput>of(new AddFlowInputBuilder(sourceFlow)
 433                 .setMatch(match).setInstructions(instructions).build());
 434         } else if (sourceFlow instanceof RemoveFlowInput) {
 435             return Optional.<RemoveFlowInput>of(new RemoveFlowInputBuilder(sourceFlow)
 436                 .setMatch(match).setInstructions(instructions).build());
 437         } else if (sourceFlow instanceof UpdatedFlow) {
 438             return Optional.<UpdatedFlow>of(new UpdatedFlowBuilder(sourceFlow)
 439                 .setMatch(match).setInstructions(instructions).build());
 440         } else {
 441             return Optional.<Flow>absent();
 442         }
 443     }
 444
 445     private static List<org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction>
 446         injectPushActionToInstruction(final Flow sourceFlow) {
 447
 448         List<org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction> srcInstructionList =
 449             sourceFlow.getInstructions().getInstruction();
 450
 451         List<org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction> targetInstructionList = new ArrayList<>(srcInstructionList.size());
 452         List<org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.Action> targetActionList = new ArrayList<>();
 453
 454         org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder instructionBuilder =
 455                 new org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder();
 456
 457         for (int i=0; i < srcInstructionList.size(); i++) {
 458             org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction srcInstruction =
 459                     srcInstructionList.get(i);
 460             org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction curSrcInstruction =
 461                     srcInstruction.getInstruction();
 462
 463             if (curSrcInstruction instanceof ApplyActionsCase) {
 464                 ApplyActionsCase applyActionscase = (ApplyActionsCase) curSrcInstruction;
 465                 ApplyActions applyActions = applyActionscase.getApplyActions();
 466                 List<org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.Action> srcActionList = applyActions.getAction();
 467
 468                 int offset = 0;
 469                 for (int j=0; j < srcActionList.size(); j++) {
 470                     // check if its a set-vlan-action. If yes, then add the injected-action
 471
 472                     org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.Action actionItem = srcActionList.get(j);
 473                     if(actionItem.getAction() instanceof SetVlanIdActionCase) {
 474                         SetVlanIdActionCase setVlanIdActionCase = (SetVlanIdActionCase) actionItem.getAction();
 475
 476                         PushVlanActionCaseBuilder pushVlanActionCaseBuilder = new PushVlanActionCaseBuilder();
 477                         PushVlanActionBuilder pushVlanActionBuilder = new PushVlanActionBuilder();
 478
 479                         pushVlanActionBuilder.setCfi(new VlanCfi(1))
 480                             .setVlanId(setVlanIdActionCase.getSetVlanIdAction().getVlanId())
 481                             .setEthernetType(sourceFlow.getMatch().getEthernetMatch()
 482                                 .getEthernetType().getType().getValue().intValue())
 483                             .setTag(sourceFlow.getMatch().getEthernetMatch()
 484                                 .getEthernetType().getType().getValue().intValue());
 485                         pushVlanActionCaseBuilder.setPushVlanAction(pushVlanActionBuilder.build());
 486                         PushVlanActionCase injectedAction = pushVlanActionCaseBuilder.build();
 487
 488                         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder actionBuilder = new ActionBuilder();
 489                         actionBuilder.setAction(injectedAction)
 490                             .setKey(actionItem.getKey())
 491                             .setOrder(actionItem.getOrder() + offset);
 492
 493                         targetActionList.add(actionBuilder.build());
 494                         offset ++;
 495                     }
 496
 497                     if (offset > 0) {
 498                         // we need to increment the order for all the actions added after injection
 499                         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder actionBuilder =
 500                             new org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder(actionItem);
 501                         actionBuilder.setOrder(actionItem.getOrder() + offset);
 502                         actionItem = actionBuilder.build();
 503                     }
 504
 505                     targetActionList.add(actionItem);
 506                 }
 507
 508                 ApplyActionsCaseBuilder applyActionsCaseBuilder = new ApplyActionsCaseBuilder();
 509                 ApplyActionsBuilder applyActionsBuilder = new ApplyActionsBuilder();
 510                 applyActionsBuilder.setAction(targetActionList);
 511                 applyActionsCaseBuilder.setApplyActions(applyActionsBuilder.build());
 512
 513                 instructionBuilder.setInstruction(applyActionsCaseBuilder.build());
 514             } else {
 515                 instructionBuilder.setInstruction(curSrcInstruction);
 516             }
 517
 518             instructionBuilder
 519                 .setKey(srcInstruction.getKey())
 520                 .setOrder(srcInstruction.getOrder());
 521             targetInstructionList.add(instructionBuilder.build());
 522
 523         }
 524
 525         return targetInstructionList;
 526     }
 527
 528 }