cl.citymovil.route_pro.solver.solution.util.LatitudeCustomerDifficultyComparator.java Source code

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/*
 * Copyright 2012 JBoss Inc
 *
 * 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 cl.citymovil.route_pro.solver.solution.util;

import java.io.Serializable;
import java.util.Comparator;

import org.apache.commons.lang3.builder.CompareToBuilder;

import cl.citymovil.route_pro.solver.domain.Customer;

/**
 * On large datasets, the constructed solution looks like a zebra crossing.
 */
public class LatitudeCustomerDifficultyComparator implements Comparator<Customer>, Serializable {

    private static final long serialVersionUID = 1L;

    public int compare(Customer a, Customer b) {
        return new CompareToBuilder().append(a.getLocation().getLatitude(), b.getLocation().getLatitude())
                .append(a.getLocation().getLongitude(), b.getLocation().getLongitude())
                .append(a.getDemand(), b.getDemand()).append(a.getCustomerId(), b.getCustomerId()).toComparison();
    }

}