groupbasedpolicy/src/main/java/org/opendaylight/groupbasedpolicy/dto/EndpointConstraint.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.groupbasedpolicy.dto;
  10
  11 import java.util.Collections;
  12 import java.util.HashSet;
  13 import java.util.List;
  14 import java.util.Set;
  15
  16 import javax.annotation.Nonnull;
  17 import javax.annotation.Nullable;
  18 import javax.annotation.concurrent.Immutable;
  19
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpPrefix;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ConditionName;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.has.endpoint.identification.constraints.EndpointIdentificationConstraints;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.has.endpoint.identification.constraints.endpoint.identification.constraints.l3.endpoint.identification.constraints.PrefixConstraint;
  24
  25 /**
  26  * Represents constraints for an endpoint.
  27  */
  28 @Immutable
  29 public class EndpointConstraint {
  30
  31     private final ConditionSet conditionSet;
  32     private final Set<PrefixConstraint> l3EpPrefixes;
  33
  34     public EndpointConstraint(
  35             @Nullable ConditionSet conditionSet,
  36             @Nullable EndpointIdentificationConstraints consEpIdentificationConstraint) {
  37         if (conditionSet == null) {
  38             this.conditionSet = ConditionSet.EMPTY;
  39         } else {
  40             this.conditionSet = conditionSet;
  41         }
  42         if (consEpIdentificationConstraint == null
  43                 || consEpIdentificationConstraint
  44                         .getL3EndpointIdentificationConstraints() == null
  45                 || consEpIdentificationConstraint
  46                         .getL3EndpointIdentificationConstraints()
  47                         .getPrefixConstraint() == null) {
  48             l3EpPrefixes = Collections.emptySet();
  49         } else {
  50             l3EpPrefixes = new HashSet<>(consEpIdentificationConstraint
  51                     .getL3EndpointIdentificationConstraints()
  52                     .getPrefixConstraint());
  53         }
  54     }
  55
  56     /**
  57      * @param epConditions
  58      *            {@code null} means empty list
  59      * @return {@code true} endpoint's conditions match against conditions from
  60      *         condition-matchers
  61      */
  62     public boolean conditionsMatch(
  63             @Nullable final List<ConditionName> epConditions) {
  64         if (epConditions == null) {
  65             return conditionSet
  66                     .matches(Collections.<ConditionName> emptyList());
  67         }
  68         return conditionSet.matches(epConditions);
  69     }
  70
  71     public @Nonnull ConditionSet getConditionSet() {
  72         return conditionSet;
  73     }
  74
  75     public @Nonnull Set<PrefixConstraint> getL3EpPrefixes() {
  76         return l3EpPrefixes;
  77     }
  78
  79     public static Set<IpPrefix> getIpPrefixesFrom(
  80             Set<PrefixConstraint> prefixConstraints) {
  81         Set<IpPrefix> ipPrefixes = new HashSet<>();
  82         for (PrefixConstraint prefixConstraint : prefixConstraints) {
  83             ipPrefixes.add(prefixConstraint.getIpPrefix());
  84         }
  85         return ipPrefixes;
  86     }
  87
  88     @Override
  89     public int hashCode() {
  90         final int prime = 31;
  91         int result = 1;
  92         result = prime * result
  93                 + ((conditionSet == null) ? 0 : conditionSet.hashCode());
  94         result = prime * result
  95                 + ((l3EpPrefixes == null) ? 0 : l3EpPrefixes.hashCode());
  96         return result;
  97     }
  98
  99     @Override
 100     public boolean equals(Object obj) {
 101         if (this == obj)
 102             return true;
 103         if (obj == null)
 104             return false;
 105         if (getClass() != obj.getClass())
 106             return false;
 107         EndpointConstraint other = (EndpointConstraint) obj;
 108         if (conditionSet == null) {
 109             if (other.conditionSet != null)
 110                 return false;
 111         } else if (!conditionSet.equals(other.conditionSet))
 112             return false;
 113         if (l3EpPrefixes == null) {
 114             if (other.l3EpPrefixes != null)
 115                 return false;
 116         } else if (!l3EpPrefixes.equals(other.l3EpPrefixes))
 117             return false;
 118         return true;
 119     }
 120
 121 }