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OptaPlanner solves planning problems. This lightweight, embeddable planning engine implements powerful and scalable algorithms to optimize business resource scheduling and planning. This module contains the examples which demonstrate how to use it in a normal Java application.

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/*
 * Copyright 2011 Red Hat, Inc. and/or its affiliates.
 *
 * 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.optaplanner.examples.machinereassignment.solver.drools;

import static java.util.Comparator.comparing;
import static java.util.Comparator.comparingLong;

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

import org.optaplanner.examples.machinereassignment.domain.MrMachine;
import org.optaplanner.examples.machinereassignment.domain.MrMachineCapacity;
import org.optaplanner.examples.machinereassignment.domain.MrResource;

public class MrMachineTransientUsage implements Serializable, Comparable {

    private static final Comparator COMPARATOR = comparing(
            (MrMachineTransientUsage transientUsage) -> transientUsage.getClass().getName())
                    .thenComparing(transientUsage -> transientUsage.machineCapacity, comparingLong(MrMachineCapacity::getId))
                    .thenComparingLong(transientUsage -> transientUsage.usage);

    private MrMachineCapacity machineCapacity;
    private long usage;

    public MrMachineTransientUsage(MrMachineCapacity machineCapacity, long usage) {
        this.machineCapacity = machineCapacity;
        this.usage = usage;
    }

    public MrMachineCapacity getMachineCapacity() {
        return machineCapacity;
    }

    public long getUsage() {
        return usage;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        final MrMachineTransientUsage other = (MrMachineTransientUsage) o;
        return Objects.equals(machineCapacity, other.machineCapacity) &&
                usage == other.usage;
    }

    @Override
    public int hashCode() {
        return Objects.hash(machineCapacity, usage);
    }

    public MrMachine getMachine() {
        return machineCapacity.getMachine();
    }

    public MrResource getResource() {
        return machineCapacity.getResource();
    }

    @Override
    public String toString() {
        return getMachine() + "-" + getResource() + "=" + usage;
    }

    @Override
    public int compareTo(MrMachineTransientUsage o) {
        return COMPARATOR.compare(this, o);
    }
}