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 org.opendaylight.openflowplugin.extension.api.ConvertorActionFromOFJava;
  11 import org.opendaylight.openflowplugin.extension.api.ConvertorActionToOFJava;
  12 import org.opendaylight.openflowplugin.extension.api.path.ActionPath;
  13 import org.opendaylight.openflowplugin.extension.vendor.nicira.convertor.CodecPreconditionException;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev130731.actions.grouping.Action;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.NxmNxRegLoad;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.OfjAugNxAction;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.OfjAugNxActionBuilder;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.nx.action.reg.load.grouping.ActionRegLoad;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.nx.action.reg.load.grouping.ActionRegLoadBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.NxActionRegLoadGrouping;
  21 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;
  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.write.actions._case.write.actions.action.action.NxActionRegLoadNotifFlowsStatisticsUpdateWriteActionsCaseBuilder;
  23 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;
  24 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;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.reg.load.grouping.NxRegLoad;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.reg.load.grouping.NxRegLoadBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.reg.load.grouping.nx.reg.load.Dst;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.reg.load.grouping.nx.reg.load.DstBuilder;
  29
  30 import com.google.common.base.Preconditions;
  31
  32 /**
  33  * @author msunal
  34  *
  35  */
  36 public class RegLoadConvertor implements
  37 ConvertorActionToOFJava<org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action, Action>,
  38 ConvertorActionFromOFJava<Action, ActionPath> {
  39
  40     @Override
  41     public org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action convert(Action input, ActionPath path) {
  42         ActionRegLoad actionRegLoad = input.getAugmentation(OfjAugNxAction.class).getActionRegLoad();
  43         DstBuilder dstBuilder = new DstBuilder();
  44         dstBuilder.setDstChoice(RegMoveConvertor.resolveDst(actionRegLoad.getDst()));
  45         dstBuilder.setStart(resolveStart(actionRegLoad.getOfsNbits()));
  46         dstBuilder.setEnd(resolveEnd(actionRegLoad.getOfsNbits()));
  47         NxRegLoadBuilder nxRegLoadBuilder = new NxRegLoadBuilder();
  48         nxRegLoadBuilder.setDst(dstBuilder.build());
  49         nxRegLoadBuilder.setValue(actionRegLoad.getValue());
  50         return resolveAction(nxRegLoadBuilder.build(), path);
  51     }
  52
  53     private static int resolveStart(int ofsNBints) {
  54         return extractSub(ofsNBints, 10, 6);
  55     }
  56
  57     private static int resolveEnd(int ofsNBints) {
  58         int ofs = extractSub(ofsNBints, 10, 6);
  59         int nBits = extractSub(ofsNBints, 6, 0);
  60         return ofs + nBits;
  61     }
  62
  63     private static int extractSub(final int l, final int nrBits, final int offset) {
  64         final int rightShifted = l >>> offset;
  65         final int mask = (1 << nrBits) - 1;
  66         return rightShifted & mask;
  67     }
  68
  69     private static org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action resolveAction(NxRegLoad value,
  70             ActionPath path) {
  71         switch (path) {
  72         case NODES_NODE_TABLE_FLOW_INSTRUCTIONS_INSTRUCTION_WRITEACTIONSCASE_WRITEACTIONS_ACTION_ACTION_EXTENSIONLIST_EXTENSION:
  73             return new NxActionRegLoadNodesNodeTableFlowWriteActionsCaseBuilder().setNxRegLoad(value).build();
  74         case FLOWSSTATISTICSUPDATE_FLOWANDSTATISTICSMAPLIST_INSTRUCTIONS_INSTRUCTION_INSTRUCTION_WRITEACTIONSCASE_WRITEACTIONS_ACTION_ACTION:
  75             return new NxActionRegLoadNotifFlowsStatisticsUpdateWriteActionsCaseBuilder().setNxRegLoad(value).build();
  76         case FLOWSSTATISTICSUPDATE_FLOWANDSTATISTICSMAPLIST_INSTRUCTIONS_INSTRUCTION_INSTRUCTION_APPLYACTIONSCASE_APPLYACTIONS_ACTION_ACTION:
  77             return new NxActionRegLoadNotifFlowsStatisticsUpdateApplyActionsCaseBuilder().setNxRegLoad(value).build();
  78         case GROUPDESCSTATSUPDATED_GROUPDESCSTATS_BUCKETS_BUCKET_ACTION:
  79             return new NxActionRegLoadNotifGroupDescStatsUpdatedCaseBuilder().setNxRegLoad(value).build();
  80         default:
  81             throw new CodecPreconditionException(path);
  82         }
  83     }
  84
  85     @Override
  86     public Action convert(org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action nxActionArg) {
  87         Preconditions.checkArgument(nxActionArg instanceof NxActionRegLoadGrouping);
  88
  89         NxActionRegLoadGrouping nxAction = (NxActionRegLoadGrouping) nxActionArg;
  90         Dst dst = nxAction.getNxRegLoad().getDst();
  91         ActionRegLoadBuilder actionRegLoadBuilder = new ActionRegLoadBuilder();
  92         actionRegLoadBuilder.setDst(RegMoveConvertor.resolveDst(dst.getDstChoice()));
  93         actionRegLoadBuilder.setOfsNbits((dst.getStart() << 6) | (dst.getEnd() - dst.getStart()));
  94         actionRegLoadBuilder.setValue(nxAction.getNxRegLoad().getValue());
  95         OfjAugNxActionBuilder augNxActionBuilder = new OfjAugNxActionBuilder();
  96         augNxActionBuilder.setActionRegLoad(actionRegLoadBuilder.build());
  97         return ActionUtil.createNiciraAction(augNxActionBuilder.build(), NxmNxRegLoad.class);
  98     }
  99
 100
 101 }