UsabilityBasic.java

/*
 * Copyright (c) 2012, Stephen Colebourne & Michael Nascimento Santos
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 *  * Neither the name of JSR-310 nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package javax.time;

import static java.time.calendrical.ChronoField.DAY_OF_MONTH;
import static java.time.calendrical.DateTimeAdjusters.previousOrSame;

import java.time.DayOfWeek;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.YearMonth;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.calendrical.ChronoField;
import java.time.calendrical.ChronoUnit;
import java.time.calendrical.DateTimeAccessor;
import java.time.calendrical.DateTimeBuilder;
import java.time.calendrical.DateTimeField;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeFormatterBuilder;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

/**
 * Usability class for package.
 */
public final class UsabilityBasic {

  public static void main(String[] args) {

    simpleCalendar();
    System.out.println("------");
    lookup();
    System.out.println("------");
    period();
    System.out.println("------");
    resolve1();
    System.out.println("------");
    resolve2();
    System.out.println("------");
    resolve3();
    System.out.println("------");
    resolve4();
    System.out.println("------");
    print1();
    System.out.println("------");
    print2();
    System.out.println("------");
    sort();
  }

  private UsabilityBasic() {

  }

  private static void simpleCalendar() {

    LocalDate date = LocalDate.now();
    System.out.println(date);

    date = date.withDayOfMonth(1);
    System.out.println(date);

    int month = date.getMonth().getValue();
    date = date.with(previousOrSame(DayOfWeek.MONDAY));
    System.out.println(date);

    while (date.getMonth().getValue() <= month) {
      String row = "";
      for (int i = 0; i < 7; i++) {
        row += date.getDayOfMonth() + " ";
        date = date.plusDays(1);
      }
      System.out.println(row);
    }
  }

  private static void lookup() {

    LocalDate date = LocalDate.now();
    LocalTime time = LocalTime.now();
    LocalDateTime dateTime = LocalDateTime.now();
    // System.out.println(LocalDateField.DAY_OF_MONTH.getDateRules().get(date));
    // System.out.println(LocalDateField.MONTH_OF_YEAR.getDateRules().get(date));
    // System.out.println(LocalDateField.YEAR.getDateRules().get(date));
    // System.out.println(QuarterYearField.QUARTER_OF_YEAR.getDateRules().get(date));
    // System.out.println(QuarterYearField.MONTH_OF_QUARTER.getDateRules().get(date));
    // System.out.println(QuarterYearField.DAY_OF_QUARTER.getDateRules().get(date));

    output(date, ChronoField.DAY_OF_MONTH);
    output(date, ChronoField.MONTH_OF_YEAR);
    output(date, ChronoField.YEAR);

    output(dateTime, ChronoField.DAY_OF_MONTH);
    output(time, ChronoField.HOUR_OF_DAY);
    output(time, ChronoField.MINUTE_OF_HOUR);

    DateTimeAccessor cal = date;
    System.out.println("DoM: " + cal.get(DAY_OF_MONTH));
  }

  protected static void output(LocalDate date, DateTimeField field) {

    System.out.println(field + " " + date.getLong(field));
  }

  protected static void output(LocalDateTime dateTime, DateTimeField field) {

    System.out.println(field + " " + dateTime.getLong(field));
  }

  protected static void output(LocalTime time, DateTimeField field) {

    System.out.println(field + " " + time.getLong(field));
  }

  private static void period() {

    LocalDate date1 = LocalDate.now();
    LocalDate date2 = LocalDate.now().plusDays(25367);
    System.out.println(ChronoUnit.DAYS.between(date1, date2));
    System.out.println(ChronoUnit.YEARS.between(date1, date2));

    date1 = LocalDate.of(2012, 2, 20);
    date2 = LocalDate.of(2014, 2, 19);
    System.out.println(ChronoUnit.YEARS.between(date1, date2));
    date2 = LocalDate.of(2014, 2, 20);
    System.out.println(ChronoUnit.YEARS.between(date1, date2));
    date2 = LocalDate.of(2014, 2, 21);
    System.out.println(ChronoUnit.YEARS.between(date1, date2));
    date2 = LocalDate.of(2010, 2, 19);
    System.out.println(ChronoUnit.YEARS.between(date1, date2));
    date2 = LocalDate.of(2010, 2, 20);
    System.out.println(ChronoUnit.YEARS.between(date1, date2));
    date2 = LocalDate.of(2010, 2, 21);
    System.out.println(ChronoUnit.YEARS.between(date1, date2));

    LocalDate date3 = LocalDate.now().plus(3, ChronoUnit.DAYS);
    System.out.println("3 days later " + date3);
  }

  private static void resolve1() {

    DateTimeBuilder builder = new DateTimeBuilder();
    builder.addFieldValue(ChronoField.YEAR, 2012);
    builder.addFieldValue(ChronoField.MONTH_OF_YEAR, 4);
    builder.addFieldValue(ChronoField.DAY_OF_MONTH, 18);
    System.out.println("Setup: " + builder);
    System.out.println("Resolved: " + builder.resolve());
    System.out.println("Date: " + LocalDate.from(builder));
  }

  private static void resolve2() {

    DateTimeBuilder builder = new DateTimeBuilder();
    builder.addFieldValue(ChronoField.YEAR, 2012);
    builder.addFieldValue(ChronoField.MONTH_OF_YEAR, 4);
    builder.addFieldValue(ChronoField.DAY_OF_MONTH, 18);
    builder.addFieldValue(ChronoField.DAY_OF_WEEK, 1);
    System.out.println("Setup: " + builder);
    try {
      builder.resolve();
    } catch (RuntimeException ex) {
      System.err.println(ex.toString());
    }
  }

  private static void resolve3() {

    DateTimeBuilder builder = new DateTimeBuilder();
    builder.addCalendrical(LocalDate.of(2012, 1, 2));
    builder.addCalendrical(ZonedDateTime.of(LocalDateTime.of(2012, 4, 3, 12, 30), ZoneOffset.ofHours(2)));
    System.out.println("Setup: " + builder);
    try {
      builder.resolve();
    } catch (RuntimeException ex) {
      System.err.println(ex.toString());
    }
  }

  private static void resolve4() {

    DateTimeBuilder builder = new DateTimeBuilder();
    builder.addFieldValue(ChronoField.YEAR, 2012);
    builder.addFieldValue(ChronoField.MONTH_OF_YEAR, 5);
    builder.addFieldValue(ChronoField.DAY_OF_MONTH, 3);
    System.out.println("Setup: " + builder);
    System.out.println("Resolved: " + builder.resolve());
    System.out.println("Date: " + LocalDate.from(builder));
  }

  private static void print1() {

    DateTimeFormatter f = new DateTimeFormatterBuilder().appendText(ChronoField.AMPM_OF_DAY).appendLiteral(' ')
        .appendValue(ChronoField.AMPM_OF_DAY).toFormatter();
    System.out.println(f.print(LocalTime.of(12, 30)));
    System.out.println(f.print(ZonedDateTime.now()));
  }

  private static void print2() {

    DateTimeFormatter f = new DateTimeFormatterBuilder().appendText(ChronoField.MONTH_OF_YEAR).appendLiteral(' ')
        .appendValue(ChronoField.YEAR).toFormatter();
    System.out.println(f.print(LocalDate.now()));
    System.out.println(f.print(YearMonth.now()));
    System.out.println(f.print(ZonedDateTime.now()));
  }

  private static void sort() {

    List<DateTimeAccessor> list = Arrays.<DateTimeAccessor> asList(LocalDate.now().plusMonths(3), LocalDate.now()
        .minusMonths(3), LocalDateTime.now());
    Collections.sort(list, ChronoField.MONTH_OF_YEAR);
    System.out.println(list);
  }

}