Java Code Examples for java.time.LocalDateTime#truncatedTo()

@CmmnDeployment(resources = { "org/flowable/cmmn/rest/service/api/repository/oneHumanTaskCase.cmmn" })
public void testGetCaseInstanceLocalDateTimeVariable() throws Exception {

    CaseInstance caseInstance = runtimeService.createCaseInstanceBuilder().caseDefinitionKey("oneHumanTaskCase").start();
    LocalDateTime now = LocalDateTime.now();
    LocalDateTime nowWithoutNanos = now.truncatedTo(ChronoUnit.MILLIS);
    runtimeService.setVariable(caseInstance.getId(), "variable", now);

    CloseableHttpResponse response = executeRequest(
            new HttpGet(SERVER_URL_PREFIX + CmmnRestUrls.createRelativeResourceUrl(CmmnRestUrls.URL_CASE_INSTANCE_VARIABLE,
                    caseInstance.getId(), "variable")), HttpStatus.SC_OK);

    JsonNode responseNode = objectMapper.readTree(response.getEntity().getContent());

    closeResponse(response);
    assertThat(responseNode).isNotNull();
    assertThatJson(responseNode)
            .when(Option.IGNORING_EXTRA_FIELDS)
            .isEqualTo("{"
                    + "  name: 'variable',"
                    + "  type: 'localDateTime',"
                    + "  value: '" + nowWithoutNanos.toString() + "'"
                    + "}");
}
 

@Test
@Deployment(resources = { "org/flowable/rest/service/api/runtime/ProcessInstanceVariableResourceTest.testProcess.bpmn20.xml" })
public void testGetProcessInstanceLocalDateTimeVariable() throws Exception {

    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("oneTaskProcess");
    LocalDateTime now = LocalDateTime.now();
    LocalDateTime nowWithoutNanos = now.truncatedTo(ChronoUnit.MILLIS);
    runtimeService.setVariable(processInstance.getId(), "variable", now);

    CloseableHttpResponse response = executeRequest(
            new HttpGet(
                    SERVER_URL_PREFIX + RestUrls.createRelativeResourceUrl(RestUrls.URL_PROCESS_INSTANCE_VARIABLE, processInstance.getId(), "variable")),
            HttpStatus.SC_OK);

    JsonNode responseNode = objectMapper.readTree(response.getEntity().getContent());

    closeResponse(response);
    assertThat(responseNode).isNotNull();
    assertThatJson(responseNode)
            .when(Option.IGNORING_EXTRA_FIELDS)
            .isEqualTo("{"
                    + "  name: 'variable',"
                    + "  type: 'localDateTime',"
                    + "  value: '" + nowWithoutNanos.toString() + "'"
                    + "}");
}
 

/**
 * Returns a copy of the {@link LocalDateTime} adjusted to be compatible with the format output by
 * {@link #parseDateTimeFromSessionsForm}, i.e. either the time is 23:59, or the minute is 0 and the hour is not 0.
 * The date time is first rounded to the nearest hour, then the special case 00:00 is handled.
 * @param ldt The {@link LocalDateTime} to be adjusted for compatibility.
 * @return a copy of {@code ldt} adjusted for compatibility, or null if {@code ldt} is null.
 * @see #parseDateTimeFromSessionsForm
 */
public static LocalDateTime adjustLocalDateTimeForSessionsFormInputs(LocalDateTime ldt) {
    if (ldt == null) {
        return null;
    }
    if (ldt.getMinute() == 0 && ldt.getHour() != 0 || ldt.getMinute() == 59 && ldt.getHour() == 23) {
        return ldt;
    }

    // Round to the nearest hour
    LocalDateTime rounded;
    LocalDateTime floor = ldt.truncatedTo(ChronoUnit.HOURS);
    LocalDateTime ceiling = floor.plusHours(1);
    Duration distanceToCeiling = Duration.between(ldt, ceiling);
    if (distanceToCeiling.compareTo(Duration.ofMinutes(30)) <= 0) {
        rounded = ceiling;
    } else {
        rounded = floor;
    }

    // Adjust 00:00 -> 23:59
    if (rounded.getHour() == 0) {
        return rounded.minusMinutes(1);
    }
    return rounded;
}
 

/**
 * 规整时间的秒
 */
public static LocalDateTime round(LocalDateTime ldt) {
    int seconds = ldt.get(ChronoField.SECOND_OF_MINUTE);
    if (seconds >= 59) {
        ldt = ldt.plus(1, ChronoUnit.SECONDS);
    }
    return ldt.truncatedTo(ChronoUnit.SECONDS);
}
 

@Override
public LocalDateTime roundDownTimePart(LocalDateTime localDateTime) {
  if (localDateTime == null) {
    return null;
  }
  return localDateTime.truncatedTo(ChronoUnit.DAYS);
}
 

/**
 * Since JDK 9, LocalDateTime uses a precision of nanoseconds, while the BSON dates in MongoDB have a millisecond
 * precision, so we have to truncate it in order not to lose information.
 *
 * @see <a href="https://bugs.openjdk.java.net/browse/JDK-8068730">https://bugs.openjdk.java.net/browse/JDK-8068730</a>
 * @see <a href="http://bsonspec.org/spec.html">http://bsonspec.org/spec.html</a>
 */
private static LocalDateTime truncateToMillis(LocalDateTime dateTime) {
    return dateTime.truncatedTo(ChronoUnit.MILLIS);
}
 

/**
 * Returns a {@link java.time.LocalDateTime} with the time portion cleared.
 *
 * @param self a LocalDateTime
 * @return a LocalDateTime
 * @since 2.5.0
 */
public static LocalDateTime clearTime(final LocalDateTime self) {
    return self.truncatedTo(DAYS);
}