/*
* Licensed to the Apache Software Foundation (ASF) under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional information regarding
* copyright ownership. The ASF licenses this file to You 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.apache.geode.internal.sequencelog.model;
import java.util.SortedMap;
public class Edge {
private final long timestamp;
private final String name;
private final String source;
private final Vertex dest;
private final Graph graph;
public Edge(Graph graph, long timestamp, String name, String sourceName, Vertex destVertex) {
this.graph = graph;
this.timestamp = timestamp;
this.name = name;
this.source = sourceName;
this.dest = destVertex;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((dest == null) ? 0 : dest.hashCode());
result = prime * result + ((name == null) ? 0 : name.hashCode());
result = prime * result + ((source == null) ? 0 : source.hashCode());
result = prime * result + (int) (timestamp ^ (timestamp >>> 32));
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (!(obj instanceof Edge))
return false;
Edge other = (Edge) obj;
if (dest == null) {
if (other.dest != null)
return false;
} else if (!dest.equals(other.dest))
return false;
if (name == null) {
if (other.name != null)
return false;
} else if (!name.equals(other.name))
return false;
if (source == null) {
if (other.source != null)
return false;
} else if (!source.equals(other.source))
return false;
if (timestamp != other.timestamp)
return false;
return true;
}
@Override
public String toString() {
return name;
}
public String getSourceName() {
return source;
}
public String getName() {
return name;
}
public Vertex getSource() {
SortedMap<Long, Vertex> sourceMap = graph.getIndexedVertices().get(source);
if (sourceMap == null) {
return null;
}
SortedMap<Long, Vertex> headMap = sourceMap.headMap(dest.getTimestamp() + 1);
if (headMap.isEmpty()) {
return null;
}
Long closestTimestamp = headMap.lastKey();
return headMap.get(closestTimestamp);
}
public Vertex getDest() {
return dest;
}
public long getTimestamp() {
return timestamp;
}
}