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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 java.io.Serializable;

import org.apache.commons.lang3.builder.CompareToBuilder;
import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.optaplanner.core.api.score.constraint.ConstraintMatch;
import org.optaplanner.examples.machinereassignment.domain.MrMachine;
import org.optaplanner.examples.machinereassignment.domain.MrMachineCapacity;
import org.optaplanner.examples.machinereassignment.domain.MrResource;

public class MrMachineUsage implements Serializable, Comparable {

    private MrMachineCapacity machineCapacity;
    private long usage;

    public MrMachineUsage(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;
        } else if (o instanceof MrMachineUsage) {
            MrMachineUsage other = (MrMachineUsage) o;
            return new EqualsBuilder()
                    .append(machineCapacity, other.machineCapacity)
                    .append(usage, other.usage)
                    .isEquals();
        } else {
            return false;
        }
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder()
                .append(machineCapacity)
                .append(usage)
                .toHashCode();
    }

    /**
     * Used by the GUI to sort the {@link ConstraintMatch} list
     * by {@link ConstraintMatch#getJustificationList()}.
     * @param other never null
     * @return comparison
     */
    @Override
    public int compareTo(MrMachineUsage other) {
        return new CompareToBuilder()
                .append(machineCapacity, other.machineCapacity)
                .append(usage, other.usage)
                .toComparison();
    }

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

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

    public boolean isTransientlyConsumed() {
        return machineCapacity.getResource().isTransientlyConsumed();
    }

    public long getLoadCostWeight() {
        return machineCapacity.getResource().getLoadCostWeight();
    }

    public long getMaximumAvailable() {
        return machineCapacity.getMaximumCapacity() - usage;
    }

    public long getSafetyAvailable() {
        return machineCapacity.getSafetyCapacity() - usage;
    }

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

}