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/*
* Copyright 2014 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.net.topology;
import org.onosproject.net.Link;
import java.util.Objects;
import static com.google.common.base.MoreObjects.toStringHelper;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Implementation of the topology edge backed by a link.
*/
public class DefaultTopologyEdge implements TopologyEdge {
private final Link link;
private final TopologyVertex src;
private final TopologyVertex dst;
/**
* Creates a new topology edge.
*
* @param src source vertex
* @param dst destination vertex
* @param link infrastructure link
*/
public DefaultTopologyEdge(TopologyVertex src, TopologyVertex dst, Link link) {
this.src = src;
this.dst = dst;
this.link = checkNotNull(link);
}
@Override
public Link link() {
return link;
}
@Override
public TopologyVertex src() {
return src;
}
@Override
public TopologyVertex dst() {
return dst;
}
@Override
public int hashCode() {
return link.hashCode();
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof DefaultTopologyEdge) {
final DefaultTopologyEdge other = (DefaultTopologyEdge) obj;
return Objects.equals(this.link, other.link);
}
return false;
}
@Override
public String toString() {
return toStringHelper(this).add("src", src).add("dst", dst).toString();
}
}
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