openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/registry/flow/FlowRegistryKeyFactory.java

   1 /*
   2  * Copyright (c) 2015 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
   9 package org.opendaylight.openflowplugin.impl.registry.flow;
  10
  11 import com.google.common.base.MoreObjects;
  12 import com.google.common.base.Preconditions;
  13 import java.math.BigInteger;
  14 import org.opendaylight.openflowplugin.api.OFConstants;
  15 import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowRegistryKey;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.Flow;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Match;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  19
  20 /**
  21  * Created by Martin Bobak &lt;mbobak@cisco.com&gt; on 8.4.2015.
  22  */
  23 public class FlowRegistryKeyFactory {
  24
  25
  26     public FlowRegistryKeyFactory() {
  27     }
  28
  29     public static FlowRegistryKey create(final Flow flow) {
  30         return new FlowRegistryKeyDto(flow);
  31     }
  32
  33     private static final class FlowRegistryKeyDto implements FlowRegistryKey {
  34
  35         private final short tableId;
  36         private final int priority;
  37         private final BigInteger cookie;
  38         private final Match match;
  39         private static final Match EMPTY_MATCH = new MatchBuilder().build();
  40
  41         public FlowRegistryKeyDto(final Flow flow) {
  42             //TODO: mandatory flow input values (or default values) should be specified via yang model
  43             tableId = Preconditions.checkNotNull(flow.getTableId(), "flow tableId must not be null");
  44             priority = MoreObjects.firstNonNull(flow.getPriority(), OFConstants.DEFAULT_FLOW_PRIORITY);
  45             match = flow.getMatch()==null ? EMPTY_MATCH : flow.getMatch();
  46             cookie = MoreObjects.firstNonNull(flow.getCookie(), OFConstants.DEFAULT_FLOW_COOKIE).getValue();
  47         }
  48
  49         @Override
  50         public boolean equals(final Object o) {
  51             if (this == o) {
  52                 return true;
  53             }
  54
  55             if (o == null || !(o instanceof FlowRegistryKey)) {
  56                 return false;
  57             }
  58
  59             final FlowRegistryKey that = (FlowRegistryKey) o;
  60
  61             return getPriority() == that.getPriority() &&
  62                     getTableId() == that.getTableId() &&
  63                     getMatch().equals(that.getMatch());
  64         }
  65
  66         @Override
  67         public int hashCode() {
  68             int result = tableId;
  69             result = 31 * result + priority;
  70             result = 31 * result + match.hashCode();
  71             return result;
  72         }
  73
  74         @Override
  75         public short getTableId() {
  76             return tableId;
  77         }
  78
  79         @Override
  80         public int getPriority() {
  81             return priority;
  82         }
  83
  84         @Override
  85         public BigInteger getCookie() {
  86             return cookie;
  87         }
  88
  89         @Override
  90         public Match getMatch() {
  91             return match;
  92         }
  93     }
  94 }