/*
 * 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.onlab.graph;

import java.util.Objects;

import static com.google.common.base.MoreObjects.toStringHelper;

/**
 * Test edge.
 */
public class TestEdge extends AbstractEdge<TestVertex> {

    private final double weight;

    /**
     * Creates a new edge between the specified source and destination vertexes.
     *
     * @param src    source vertex
     * @param dst    destination vertex
     * @param weight edge weight
     */
    public TestEdge(TestVertex src, TestVertex dst, double weight) {
        super(src, dst);
        this.weight = weight;
    }

    /**
     * Returns the edge weight.
     *
     * @return edge weight
     */
    public double weight() {
        return weight;
    }

    @Override
    public int hashCode() {
        return 31 * super.hashCode() + Objects.hash(weight);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof TestEdge) {
            final TestEdge other = (TestEdge) obj;
            return super.equals(obj) && Objects.equals(this.weight, other.weight);
        }
        return false;
    }

    @Override
    public String toString() {
        return toStringHelper(this).add("src", src()).add("dst", dst()).
                add("weight", weight).toString();
    }

}