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

   1 /**
   2  * Copyright (c) 2014 Ericsson India Global Services Pvt Ltd. 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  * Contributor: hema.gopalkrishnan@ericsson.com
   9  */
  10 package org.opendaylight.openflowplugin.openflow.md.core.sal.convertor;
  11
  12 import java.math.BigInteger;
  13 import java.util.ArrayList;
  14 import java.util.Iterator;
  15 import java.util.List;
  16
  17 import org.opendaylight.openflowjava.protocol.api.util.BinContent;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.group.update.UpdatedGroup;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.Buckets;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev130731.actions.grouping.Action;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.GroupId;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.GroupModCommand;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.GroupType;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GroupModInputBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.buckets.grouping.BucketsList;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.buckets.grouping.BucketsListBuilder;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 /**
  32  * This Utility class decodes the SAL - Group Mod Message and encodes into a OF
  33  * Library for the OFPT_GROUP_MOD Message. Input:SAL Layer Group command data.
  34  * Output:GroupModInput Message.
  35  *
  36  * @param <AddGroupInput>
  37  *
  38  */
  39 public final class GroupConvertor {
  40
  41     private static final Logger logger = LoggerFactory.getLogger(GroupConvertor.class);
  42     private static final String PREFIX_SEPARATOR = "/";
  43
  44     private static final Integer DEFAULT_WEIGHT = 0;
  45     private static final Long OFPP_ANY = Long.parseLong("ffffffff", 16);
  46     private static final Long DEFAULT_WATCH_PORT = OFPP_ANY;
  47     private static final Long OFPG_ANY = Long.parseLong("ffffffff", 16);
  48     private static final Long DEFAULT_WATCH_GROUP = OFPG_ANY;
  49
  50     private GroupConvertor() {
  51
  52     }
  53
  54     public static GroupModInputBuilder toGroupModInput(
  55
  56     org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.Group source, short version,BigInteger datapathid) {
  57         List<BucketsList> bucketLists = null;
  58         GroupModInputBuilder groupModInputBuilder = new GroupModInputBuilder();
  59         if (source instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.AddGroupInput) {
  60             groupModInputBuilder.setCommand(GroupModCommand.OFPGCADD);
  61         } else if (source instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.RemoveGroupInput) {
  62             groupModInputBuilder.setCommand(GroupModCommand.OFPGCDELETE);
  63         } else if (source instanceof UpdatedGroup) {
  64             groupModInputBuilder.setCommand(GroupModCommand.OFPGCMODIFY);
  65         }
  66
  67         if (source.getGroupType().getIntValue() == 0) {
  68             groupModInputBuilder.setType(GroupType.OFPGTALL);
  69         }
  70
  71         if (source.getGroupType().getIntValue() == 1) {
  72             groupModInputBuilder.setType(GroupType.OFPGTSELECT);
  73         }
  74
  75         if (source.getGroupType().getIntValue() == 2) {
  76             groupModInputBuilder.setType(GroupType.OFPGTINDIRECT);
  77         }
  78
  79         if (source.getGroupType().getIntValue() == 3) {
  80             groupModInputBuilder.setType(GroupType.OFPGTFF);
  81         }
  82
  83         groupModInputBuilder.setGroupId(new GroupId(source.getGroupId().getValue()));
  84         // Only if the bucket is configured for the group then add it
  85         if ((source.getBuckets() != null) && (source.getBuckets().getBucket().size() != 0)) {
  86
  87             bucketLists = new ArrayList<BucketsList>();
  88             getbucketList(source.getBuckets(), bucketLists, version, source.getGroupType().getIntValue(),datapathid);
  89             groupModInputBuilder.setBucketsList(bucketLists);
  90         }
  91         groupModInputBuilder.setVersion(version);
  92         return groupModInputBuilder;
  93
  94     }
  95
  96     private static void getbucketList(Buckets buckets, List<BucketsList> bucketLists, short version, int groupType,BigInteger datapathid) {
  97
  98         Iterator<org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.buckets.Bucket> groupBucketIterator = buckets
  99                 .getBucket().iterator();
 100         org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.buckets.Bucket groupBucket;
 101
 102         while (groupBucketIterator.hasNext()) {
 103             groupBucket = groupBucketIterator.next();
 104             BucketsListBuilder bucketBuilder = new BucketsListBuilder();
 105
 106             if ((groupType == GroupType.OFPGTSELECT.getIntValue()) && (groupBucket.getWeight() == null)) {
 107
 108                 logger.error("Weight value required for this OFPGT_SELECT");
 109
 110             }
 111
 112             if (null != groupBucket.getWeight()) {
 113                 bucketBuilder.setWeight(groupBucket.getWeight().intValue());
 114             } else {
 115                 bucketBuilder.setWeight(DEFAULT_WEIGHT);
 116             }
 117
 118             if ((groupType == GroupType.OFPGTFF.getIntValue()) && (groupBucket.getWatchGroup() == null)) {
 119
 120                 logger.error("WatchGroup required for this OFPGT_FF");
 121
 122             }
 123
 124             if (null != groupBucket.getWatchGroup()) {
 125                 bucketBuilder.setWatchGroup(groupBucket.getWatchGroup());
 126             } else {
 127                 bucketBuilder.setWatchGroup(BinContent.intToUnsignedLong(DEFAULT_WATCH_GROUP.intValue()));
 128             }
 129
 130             if ((groupType == GroupType.OFPGTFF.getIntValue()) && (groupBucket.getWatchPort() == null)) {
 131
 132                 logger.error("WatchPort required for this OFPGT_FF");
 133
 134             }
 135
 136             if (null != groupBucket.getWatchPort()) {
 137                 bucketBuilder.setWatchPort(new PortNumber(groupBucket.getWatchPort()));
 138             } else {
 139                 bucketBuilder.setWatchPort(new PortNumber(BinContent.intToUnsignedLong(DEFAULT_WATCH_PORT.intValue())));
 140             }
 141
 142             List<Action> bucketActionList = ActionConvertor.getActions(groupBucket.getAction(), version,datapathid, null);
 143             bucketBuilder.setAction(bucketActionList);
 144             BucketsList bucket = bucketBuilder.build();
 145             bucketLists.add(bucket);
 146         }
 147
 148     }
 149
 150 }