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.openflowplugin.impl.util.MatchComparatorFactory;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.Flow;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Match;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  20
  21 /**
  22  * Created by Martin Bobak &lt;mbobak@cisco.com&gt; on 8.4.2015.
  23  */
  24 public class FlowRegistryKeyFactory {
  25
  26     private FlowRegistryKeyFactory() {
  27         // Hide implicit constructor
  28     }
  29
  30     public static FlowRegistryKey create(final Flow flow) {
  31         return new FlowRegistryKeyDto(flow);
  32     }
  33
  34     private static final class FlowRegistryKeyDto implements FlowRegistryKey {
  35         private final short tableId;
  36         private final int priority;
  37         private final BigInteger cookie;
  38         private final Match match;
  39
  40         private FlowRegistryKeyDto(final Flow flow) {
  41             //TODO: mandatory flow input values (or default values) should be specified via yang model
  42             tableId = Preconditions.checkNotNull(flow.getTableId(), "flow tableId must not be null");
  43             priority = MoreObjects.firstNonNull(flow.getPriority(), OFConstants.DEFAULT_FLOW_PRIORITY);
  44             match = MoreObjects.firstNonNull(flow.getMatch(), OFConstants.EMPTY_MATCH);
  45             cookie = MoreObjects.firstNonNull(flow.getCookie(), OFConstants.DEFAULT_FLOW_COOKIE).getValue();
  46         }
  47
  48         @Override
  49         public boolean equals(final Object o) {
  50             if (this == o) {
  51                 return true;
  52             }
  53
  54             if (o == null || !(o instanceof FlowRegistryKey)) {
  55                 return false;
  56             }
  57
  58             final FlowRegistryKey that = (FlowRegistryKey) o;
  59
  60             return getPriority() == that.getPriority() &&
  61                     getTableId() == that.getTableId() &&
  62                     getCookie().equals(that.getCookie()) &&
  63                     MatchComparatorFactory.createMatch().areObjectsEqual(getMatch(), that.getMatch());
  64         }
  65
  66         @Override
  67         public int hashCode() {
  68             int result = tableId;
  69             result = 31 * result + priority;
  70             result = 31 * result + cookie.hashCode();
  71             result = 31 * result + match.hashCode();
  72             return result;
  73         }
  74
  75         @Override
  76         public short getTableId() {
  77             return tableId;
  78         }
  79
  80         @Override
  81         public int getPriority() {
  82             return priority;
  83         }
  84
  85         @Override
  86         public BigInteger getCookie() {
  87             return cookie;
  88         }
  89
  90         @Override
  91         public Match getMatch() {
  92             return match;
  93         }
  94     }
  95 }