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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 2010 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.common.app;

import java.awt.Component;
import javax.swing.WindowConstants;

import org.optaplanner.core.api.domain.solution.Solution;
import org.optaplanner.core.api.solver.SolverFactory;
import org.optaplanner.swing.impl.SwingUncaughtExceptionHandler;
import org.optaplanner.swing.impl.SwingUtils;
import org.optaplanner.core.api.solver.Solver;
import org.optaplanner.examples.common.business.SolutionBusiness;
import org.optaplanner.examples.common.persistence.AbstractSolutionExporter;
import org.optaplanner.examples.common.persistence.AbstractSolutionImporter;
import org.optaplanner.examples.common.persistence.SolutionDao;
import org.optaplanner.examples.common.swingui.SolutionPanel;
import org.optaplanner.examples.common.swingui.SolverAndPersistenceFrame;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public abstract class CommonApp extends LoggingMain {

    protected static final Logger logger = LoggerFactory.getLogger(CommonApp.class);

    /**
     * Some examples are not compatible with every native LookAndFeel.
     * For example, NurseRosteringPanel is incompatible with Mac.
     */
    public static void prepareSwingEnvironment() {
        SwingUncaughtExceptionHandler.register();
        SwingUtils.fixateLookAndFeel();
    }

    protected final String name;
    protected final String description;
    protected final String solverConfig;
    protected final String iconResource;

    protected SolverAndPersistenceFrame solverAndPersistenceFrame;
    protected SolutionBusiness solutionBusiness;

    protected CommonApp(String name, String description, String solverConfig, String iconResource) {
        this.name = name;
        this.description = description;
        this.solverConfig = solverConfig;
        this.iconResource = iconResource;
    }

    public String getName() {
        return name;
    }

    public String getDescription() {
        return description;
    }

    public String getIconResource() {
        return iconResource;
    }

    public void init() {
        init(null, true);
    }

    public void init(Component centerForComponent, boolean exitOnClose) {
        solutionBusiness = createSolutionBusiness();
        solverAndPersistenceFrame = new SolverAndPersistenceFrame(solutionBusiness, createSolutionPanel());
        solverAndPersistenceFrame.setDefaultCloseOperation(exitOnClose ? WindowConstants.EXIT_ON_CLOSE : WindowConstants.DISPOSE_ON_CLOSE);
        solverAndPersistenceFrame.init(centerForComponent);
        solverAndPersistenceFrame.setVisible(true);
    }

    public SolutionBusiness createSolutionBusiness() {
        SolutionBusiness solutionBusiness = new SolutionBusiness(this);
        solutionBusiness.setSolutionDao(createSolutionDao());
        solutionBusiness.setImporters(createSolutionImporters());
        solutionBusiness.setExporter(createSolutionExporter());
        solutionBusiness.updateDataDirs();
        solutionBusiness.setSolver(createSolver());
        return solutionBusiness;
    }

    protected Solver createSolver() {
        SolverFactory solverFactory = SolverFactory.createFromXmlResource(solverConfig);
        return solverFactory.buildSolver();
    }

    protected abstract SolutionPanel createSolutionPanel();

    protected abstract SolutionDao createSolutionDao();

    protected AbstractSolutionImporter[] createSolutionImporters() {
        return new AbstractSolutionImporter[]{};
    }

    protected AbstractSolutionExporter createSolutionExporter() {
        return null;
    }

}