Java Code Examples for com.cronutils.model.time.ExecutionTime#isMatch()

/**
 * Gets the last execution instant for a {@link Schedule}, relative to a given instant. If
 * the given instant is exactly at an execution time of the schedule, it will be returned
 * as is.
 *
 * <p>e.g. an hourly schedule has a last execution instant at 13:00 relative to 13:22.
 *
 * @param instant  The instant to calculate the last execution instant relative to
 * @param schedule The schedule of executions
 * @return an instant at the last execution time
 */
public static Instant lastInstant(Instant instant, Schedule schedule) {
  final ExecutionTime executionTime = ExecutionTime.forCron(cron(schedule));
  final ZonedDateTime utcDateTime = instant.atZone(UTC);

  // executionTime.isMatch ignores seconds for unix cron
  // so we fail the check immediately if there is a sub-minute value
  return (instant.truncatedTo(ChronoUnit.MINUTES).equals(instant)
          && executionTime.isMatch(utcDateTime))
         ? instant
         : executionTime.lastExecution(utcDateTime)
             .orElseThrow(IllegalArgumentException::new) // with unix cron, this should not happen
             .toInstant();
}
 

/**
 * Tests if a given instant is aligned with the execution times of a {@link Schedule}.
 *
 * @param instant  The instant to test
 * @param schedule The schedule to test against
 * @return true if the given instant aligns with the schedule
 */
public static boolean isAligned(Instant instant, Schedule schedule) {
  // executionTime.isMatch ignores seconds for unix cron
  // so we fail the check immediately if there is a sub-minute value
  if (!instant.truncatedTo(ChronoUnit.MINUTES).equals(instant)) {
    return false;
  }

  final ExecutionTime executionTime = ExecutionTime.forCron(cron(schedule));
  final ZonedDateTime utcDateTime = instant.atZone(UTC);

  return executionTime.isMatch(utcDateTime);
}
 

@Test
public void testIsMatchDailightSavingsChange_loop() {
    CronParser cronparser = new CronParser(CronDefinitionBuilder.instanceDefinitionFor(CronType.UNIX));
    ZonedDateTime date = ZonedDateTime.of(2018, 8, 12, 3, 0, 0, 0, ZoneId.of("America/Santiago"));
    Cron cron = cronparser.parse("0 6 * * *");
    ExecutionTime exectime = ExecutionTime.forCron(cron);
    exectime.isMatch(date);
}
 

@Test
public void testCronDefinitionExecutionTimeGenerator() {
    final CronDefinition cronDefinition = defineCron().withMinutes().and()
            .withHours().and()
            .withDayOfWeek()
            .optional()
            .and()
            .instance();
    final CronParser parser = new CronParser(cronDefinition);
    final Cron cron = parser.parse(CRON_EXPRESSION);
    final ExecutionTime executionTime = ExecutionTime.forCron(cron);

    executionTime.isMatch(ZonedDateTime.now());
}