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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 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 org.optaplanner.examples.machinereassignment.domain;

import com.thoughtworks.xstream.annotations.XStreamAlias;
import org.apache.commons.lang.ObjectUtils;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
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;

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

    private MrProcess process;
    private MrMachine originalMachine;

    private MrMachine 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"}) // TODO strengthComparatorClass = BedStrengthComparator.class)
    public MrMachine getMachine() {
        return machine;
    }

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

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

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

    public boolean isMoved() {
        return !ObjectUtils.equals(originalMachine, machine);
    }

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

    public int getMachineMoveCost() {
        return machine == 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 + " @ " + machine;
    }

}