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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 2015 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.meetingscheduling.domain;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.temporal.TemporalAccessor;

import org.optaplanner.examples.common.domain.AbstractPersistable;
import org.optaplanner.examples.common.swingui.components.Labeled;

public class TimeGrain extends AbstractPersistable implements Labeled {

    /**
     * Time granularity is 15 minutes (which is often recommended when dealing with humans for practical purposes).
     */
    public static final int GRAIN_LENGTH_IN_MINUTES = 15;

    private int grainIndex; // unique

    private Day day;
    private int startingMinuteOfDay;

    public int getGrainIndex() {
        return grainIndex;
    }

    public void setGrainIndex(int grainIndex) {
        this.grainIndex = grainIndex;
    }

    public Day getDay() {
        return day;
    }

    public void setDay(Day day) {
        this.day = day;
    }

    public int getStartingMinuteOfDay() {
        return startingMinuteOfDay;
    }

    public void setStartingMinuteOfDay(int startingMinuteOfDay) {
        this.startingMinuteOfDay = startingMinuteOfDay;
    }

    public LocalDate getDate() {
        return day.toDate();
    }

    public LocalTime getTime() {
        return LocalTime.of(startingMinuteOfDay / 60, startingMinuteOfDay % 60);
    }

    public LocalDateTime getDateTime() {
        return LocalDateTime.of(getDate(), getTime());
    }

    public String getTimeString() {
        int hourOfDay = startingMinuteOfDay / 60;
        int minuteOfHour = startingMinuteOfDay % 60;
        return (hourOfDay < 10 ? "0" : "") + hourOfDay
                + ":" + (minuteOfHour < 10 ? "0" : "") + minuteOfHour;
    }

    public String getDateTimeString() {
        return day.getDateString() + " " + getTimeString();
    }

    @Override
    public String getLabel() {
        return getTimeString();
    }

    @Override
    public String toString() {
        return grainIndex + "(" + getDateTimeString() + ")";
    }
}