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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.domain;

import java.util.Objects;

import org.optaplanner.core.api.domain.entity.PlanningEntity;
import org.optaplanner.core.api.domain.variable.PlanningVariable;
import org.optaplanner.examples.common.domain.AbstractPersistable;
import org.optaplanner.examples.machinereassignment.domain.solver.MrProcessAssignmentDifficultyComparator;

import com.thoughtworks.xstream.annotations.XStreamAlias;

@PlanningEntity(difficultyComparatorClass = MrProcessAssignmentDifficultyComparator.class)
@XStreamAlias("MrProcessAssignment")
public class MrProcessAssignment extends AbstractPersistable {

    private MrProcess process;
    private MrMachine originalMachine;
    private MrMachine machine;

    public MrProcessAssignment() {
    }

    public MrProcessAssignment(MrProcess process) {
        this.process = process;
    }

    public MrProcessAssignment(long id, MrProcess process) {
        super(id);
        this.process = process;
    }

    public MrProcessAssignment(long id, MrProcess process, MrMachine machine) {
        super(id);
        this.process = process;
        this.machine = machine;
    }

    public MrProcessAssignment(long id, MrProcess process, MrMachine originalMachine, MrMachine machine) {
        super(id);
        this.process = process;
        this.originalMachine = originalMachine;
        this.machine = machine;
    }

    public MrProcess getProcess() {
        return process;
    }

    public void setProcess(MrProcess process) {
        this.process = process;
    }

    public MrMachine getOriginalMachine() {
        return originalMachine;
    }

    public void setOriginalMachine(MrMachine originalMachine) {
        this.originalMachine = originalMachine;
    }

    @PlanningVariable(valueRangeProviderRefs = { "machineRange" })
    public MrMachine getMachine() {
        return machine;
    }

    public void setMachine(MrMachine machine) {
        this.machine = machine;
    }

    // ************************************************************************
    // Complex methods
    // ************************************************************************

    public MrService getService() {
        return process.getService();
    }

    public boolean isMoved() {
        if (machine == null) {
            return false;
        }
        return !Objects.equals(originalMachine, machine);
    }

    public int getProcessMoveCost() {
        return process.getMoveCost();
    }

    public int getMachineMoveCost() {
        return (machine == null || originalMachine == null) ? 0 : originalMachine.getMoveCostTo(machine);
    }

    public MrNeighborhood getNeighborhood() {
        return machine == null ? null : machine.getNeighborhood();
    }

    public MrLocation getLocation() {
        return machine == null ? null : machine.getLocation();
    }

    public long getUsage(MrResource resource) {
        return process.getUsage(resource);
    }

    public String getLabel() {
        return "Process " + getId();
    }

    @Override
    public String toString() {
        return process.toString();
    }

}