extension/openflowplugin-extension-nicira/src/main/java/org/opendaylight/openflowplugin/extension/vendor/nicira/convertor/action/RegLoadConvertor.java

   1 /**
   2  * Copyright (c) 2014 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.extension.vendor.nicira.convertor.action;
   9
  10 import com.google.common.base.Preconditions;
  11 import org.opendaylight.openflowplugin.extension.api.ConvertorActionFromOFJava;
  12 import org.opendaylight.openflowplugin.extension.api.ConvertorActionToOFJava;
  13 import org.opendaylight.openflowplugin.extension.api.path.ActionPath;
  14 import org.opendaylight.openflowplugin.extension.vendor.nicira.convertor.CodecPreconditionException;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev150203.actions.grouping.Action;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev150203.actions.grouping.ActionBuilder;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.action.container.action.choice.ActionRegLoad;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.action.container.action.choice.ActionRegLoadBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.nx.action.reg.load.grouping.NxActionRegLoad;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.nx.action.reg.load.grouping.NxActionRegLoadBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.NxActionRegLoadGrouping;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.flows.statistics.update.flow.and.statistics.map.list.instructions.instruction.instruction.apply.actions._case.apply.actions.action.action.NxActionRegLoadNotifFlowsStatisticsUpdateApplyActionsCaseBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.flows.statistics.update.flow.and.statistics.map.list.instructions.instruction.instruction.write.actions._case.write.actions.action.action.NxActionRegLoadNotifFlowsStatisticsUpdateWriteActionsCaseBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.group.desc.stats.updated.group.desc.stats.buckets.bucket.action.action.NxActionRegLoadNotifGroupDescStatsUpdatedCaseBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nodes.node.table.flow.instructions.instruction.instruction.write.actions._case.write.actions.action.action.NxActionRegLoadNodesNodeTableFlowWriteActionsCaseBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.reg.load.grouping.NxRegLoad;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.reg.load.grouping.NxRegLoadBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.reg.load.grouping.nx.reg.load.Dst;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.reg.load.grouping.nx.reg.load.DstBuilder;
  30
  31 /**
  32  * @author msunal
  33  */
  34 public class RegLoadConvertor implements
  35         ConvertorActionToOFJava<org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action, Action>,
  36         ConvertorActionFromOFJava<Action, ActionPath> {
  37
  38     @Override
  39     public org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action convert(Action input, ActionPath path) {
  40         NxActionRegLoad actionRegLoad = ((ActionRegLoad) input.getActionChoice()).getNxActionRegLoad();
  41         DstBuilder dstBuilder = new DstBuilder();
  42         dstBuilder.setDstChoice(RegMoveConvertor.resolveDst(actionRegLoad.getDst()));
  43         dstBuilder.setStart(resolveStart(actionRegLoad.getOfsNbits()));
  44         dstBuilder.setEnd(resolveEnd(actionRegLoad.getOfsNbits()));
  45         NxRegLoadBuilder nxRegLoadBuilder = new NxRegLoadBuilder();
  46         nxRegLoadBuilder.setDst(dstBuilder.build());
  47         nxRegLoadBuilder.setValue(actionRegLoad.getValue());
  48         return resolveAction(nxRegLoadBuilder.build(), path);
  49     }
  50
  51     private static int resolveStart(int ofsNBints) {
  52         return extractSub(ofsNBints, 10, 6);
  53     }
  54
  55     private static int resolveEnd(int ofsNBints) {
  56         int ofs = extractSub(ofsNBints, 10, 6);
  57         int nBits = extractSub(ofsNBints, 6, 0);
  58         return ofs + nBits;
  59     }
  60
  61     private static int extractSub(final int l, final int nrBits, final int offset) {
  62         final int rightShifted = l >>> offset;
  63         final int mask = (1 << nrBits) - 1;
  64         return rightShifted & mask;
  65     }
  66
  67     private static org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action resolveAction(NxRegLoad value,
  68                                                                                                                     ActionPath path) {
  69         switch (path) {
  70             case NODES_NODE_TABLE_FLOW_INSTRUCTIONS_INSTRUCTION_WRITEACTIONSCASE_WRITEACTIONS_ACTION_ACTION_EXTENSIONLIST_EXTENSION:
  71                 return new NxActionRegLoadNodesNodeTableFlowWriteActionsCaseBuilder().setNxRegLoad(value).build();
  72             case FLOWSSTATISTICSUPDATE_FLOWANDSTATISTICSMAPLIST_INSTRUCTIONS_INSTRUCTION_INSTRUCTION_WRITEACTIONSCASE_WRITEACTIONS_ACTION_ACTION:
  73                 return new NxActionRegLoadNotifFlowsStatisticsUpdateWriteActionsCaseBuilder().setNxRegLoad(value).build();
  74             case FLOWSSTATISTICSUPDATE_FLOWANDSTATISTICSMAPLIST_INSTRUCTIONS_INSTRUCTION_INSTRUCTION_APPLYACTIONSCASE_APPLYACTIONS_ACTION_ACTION:
  75                 return new NxActionRegLoadNotifFlowsStatisticsUpdateApplyActionsCaseBuilder().setNxRegLoad(value).build();
  76             case GROUPDESCSTATSUPDATED_GROUPDESCSTATS_BUCKETS_BUCKET_ACTION:
  77                 return new NxActionRegLoadNotifGroupDescStatsUpdatedCaseBuilder().setNxRegLoad(value).build();
  78             default:
  79                 throw new CodecPreconditionException(path);
  80         }
  81     }
  82
  83     @Override
  84     public Action convert(org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action nxActionArg) {
  85         Preconditions.checkArgument(nxActionArg instanceof NxActionRegLoadGrouping);
  86
  87         NxActionRegLoadGrouping nxAction = (NxActionRegLoadGrouping) nxActionArg;
  88         Dst dst = nxAction.getNxRegLoad().getDst();
  89
  90
  91         ActionRegLoadBuilder actionRegLoadBuilder = new ActionRegLoadBuilder();
  92         NxActionRegLoadBuilder nxActionRegLoadBuilder = new NxActionRegLoadBuilder();
  93         nxActionRegLoadBuilder.setDst(RegMoveConvertor.resolveDst(dst.getDstChoice()));
  94         nxActionRegLoadBuilder.setOfsNbits((dst.getStart() << 6) | (dst.getEnd() - dst.getStart()));
  95         nxActionRegLoadBuilder.setValue(nxAction.getNxRegLoad().getValue());
  96         actionRegLoadBuilder.setNxActionRegLoad(nxActionRegLoadBuilder.build());
  97         return ActionUtil.createAction(actionRegLoadBuilder.build());
  98     }
  99
 100
 101 }