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

   1 /*
   2  * Copyright (c) 2015 Hewlett-Packard Enterprise 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.extension.vendor.nicira.convertor.action;
  10
  11 import com.google.common.base.Preconditions;
  12 import org.opendaylight.openflowplugin.extension.api.ConvertorActionFromOFJava;
  13 import org.opendaylight.openflowplugin.extension.api.ConvertorActionToOFJava;
  14 import org.opendaylight.openflowplugin.extension.api.path.ActionPath;
  15 import org.opendaylight.openflowplugin.extension.vendor.nicira.convertor.CodecPreconditionException;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev150203.actions.grouping.Action;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.action.container.action.choice.ActionConntrack;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.action.container.action.choice.ActionConntrackBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.nx.action.conntrack.grouping.NxActionConntrack;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.nx.action.conntrack.grouping.NxActionConntrackBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.NxActionConntrackGrouping;
  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.NxActionConntrackNotifFlowsStatisticsUpdateApplyActionsCaseBuilder;
  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.NxActionConntrackNotifFlowsStatisticsUpdateWriteActionsCaseBuilder;
  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.NxActionConntrackNotifGroupDescStatsUpdatedCaseBuilder;
  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.NxActionConntrackNodesNodeTableFlowWriteActionsCaseBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.conntrack.grouping.NxConntrack;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.conntrack.grouping.NxConntrackBuilder;
  28
  29 /**
  30  * @author Aswin Suryanarayanan.
  31  */
  32
  33 public class ConntrackConvertor implements
  34         ConvertorActionToOFJava<org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action, Action>,
  35         ConvertorActionFromOFJava<Action, ActionPath> {
  36
  37     @Override
  38     public org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action convert(final Action input, final ActionPath path) {
  39         NxActionConntrack action = ((ActionConntrack) input.getActionChoice()).getNxActionConntrack();
  40         NxConntrackBuilder builder = new NxConntrackBuilder();
  41         builder.setFlags(action.getFlags());
  42         builder.setZoneSrc(action.getZoneSrc());
  43         builder.setRecircTable(action.getRecircTable());
  44         builder.setConntrackZone(action.getConntrackZone());
  45         return resolveAction(builder.build(), path);
  46     }
  47
  48     private static int resolveStart(final int ofsNBints) {
  49         return extractSub(ofsNBints, 10, 6);
  50     }
  51
  52     private static int resolveEnd(final int ofsNBints) {
  53         int ofs = extractSub(ofsNBints, 10, 6);
  54         int nBits = extractSub(ofsNBints, 6, 0);
  55         return ofs + nBits;
  56     }
  57
  58     private static int extractSub(final int l, final int nrBits, final int offset) {
  59         final int rightShifted = l >>> offset;
  60         final int mask = (1 << nrBits) - 1;
  61         return rightShifted & mask;
  62     }
  63
  64     private static org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action resolveAction(final NxConntrack value, final ActionPath path) {
  65         switch (path) {
  66             case NODES_NODE_TABLE_FLOW_INSTRUCTIONS_INSTRUCTION_WRITEACTIONSCASE_WRITEACTIONS_ACTION_ACTION_EXTENSIONLIST_EXTENSION:
  67                 return new NxActionConntrackNodesNodeTableFlowWriteActionsCaseBuilder().setNxConntrack(value).build();
  68             case FLOWSSTATISTICSUPDATE_FLOWANDSTATISTICSMAPLIST_INSTRUCTIONS_INSTRUCTION_INSTRUCTION_WRITEACTIONSCASE_WRITEACTIONS_ACTION_ACTION:
  69                 return new NxActionConntrackNotifFlowsStatisticsUpdateWriteActionsCaseBuilder().setNxConntrack(value).build();
  70             case FLOWSSTATISTICSUPDATE_FLOWANDSTATISTICSMAPLIST_INSTRUCTIONS_INSTRUCTION_INSTRUCTION_APPLYACTIONSCASE_APPLYACTIONS_ACTION_ACTION:
  71                 return new NxActionConntrackNotifFlowsStatisticsUpdateApplyActionsCaseBuilder().setNxConntrack(value).build();
  72             case GROUPDESCSTATSUPDATED_GROUPDESCSTATS_BUCKETS_BUCKET_ACTION:
  73                 return new NxActionConntrackNotifGroupDescStatsUpdatedCaseBuilder().setNxConntrack(value).build();
  74             default:
  75                 throw new CodecPreconditionException(path);
  76         }
  77     }
  78
  79     @Override
  80     public Action convert(final org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action nxActionArg) {
  81         Preconditions.checkArgument(nxActionArg instanceof NxActionConntrackGrouping);
  82         NxActionConntrackGrouping nxAction = (NxActionConntrackGrouping) nxActionArg;
  83
  84         NxActionConntrackBuilder nxActionConntrackBuilder = new NxActionConntrackBuilder();
  85         nxActionConntrackBuilder.setFlags(nxAction.getNxConntrack().getFlags());
  86         nxActionConntrackBuilder.setZoneSrc(nxAction.getNxConntrack().getZoneSrc());
  87         nxActionConntrackBuilder.setRecircTable(nxAction.getNxConntrack().getRecircTable());
  88         nxActionConntrackBuilder.setConntrackZone(nxAction.getNxConntrack().getConntrackZone());
  89         ActionConntrackBuilder actionConntrackBuilder = new ActionConntrackBuilder();
  90         actionConntrackBuilder.setNxActionConntrack(nxActionConntrackBuilder.build());
  91         return ActionUtil.createAction(actionConntrackBuilder.build());
  92     }
  93
  94 }