Example usage for java.time.format DateTimeFormatter format

Introduction

In this page you can find the example usage for java.time.format DateTimeFormatter format.

Prototype

public String format(TemporalAccessor temporal) 

Source Link

Document

Formats a date-time object using this formatter.

Usage

From source file:org.jspare.ui.view.UIFormatter.java

/**
 * Format local date time./*from   w  w w .ja  v  a2 s. c o m*/
 *
 * @param value
 *            the value
 * @param pattern
 *            the pattern
 * @return the string
 */
public static String formatLocalDateTime(LocalDateTime value, String pattern) {

    if (value == null || StringUtils.isEmpty(pattern)) {

        return StringUtils.EMPTY;
    }

    DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(pattern);
    return dateTimeFormatter.format(value);
}

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From source file:Main.java

/**
 * Converts a LocalDate (ISO) value to a ChronoLocalDate date using the
 * provided Chronology, and then formats the ChronoLocalDate to a String using
 * a DateTimeFormatter with a SHORT pattern based on the Chronology and the
 * current Locale./* w ww. j a v a2  s  .co  m*/
 *
 * @param localDate
 *          - the ISO date to convert and format.
 * @param chrono
 *          - an optional Chronology. If null, then IsoChronology is used.
 */
public static String toString(LocalDate localDate, Chronology chrono) {
    if (localDate != null) {
        Locale locale = Locale.getDefault(Locale.Category.FORMAT);
        ChronoLocalDate cDate;
        if (chrono == null) {
            chrono = IsoChronology.INSTANCE;
        }
        try {
            cDate = chrono.date(localDate);
        } catch (DateTimeException ex) {
            System.err.println(ex);
            chrono = IsoChronology.INSTANCE;
            cDate = localDate;
        }
        String pattern = "M/d/yyyy GGGGG";
        DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern(pattern);
        return dateFormatter.format(cDate);
    } else {
        return "";
    }
}

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From source file:com.epam.parso.impl.CSVDataWriterImpl.java

/**
 * The function to convert a Java 8 LocalDateTime into a string according to the format used.
 *
 * @param currentDate the LocalDateTime to convert.
 * @param format      the string with the format that must belong to the set of
 *                    {@link CSVDataWriterImpl#DATE_OUTPUT_FORMAT_STRINGS} mapping keys.
 * @return the string that corresponds to the date in the format used.
 *//*from w  ww. j  a  va 2 s .  c om*/
protected static String convertLocalDateTimeElementToString(LocalDateTime currentDate, String format) {
    DateTimeFormatter formatter = DateTimeFormatter.ofPattern(DATE_OUTPUT_FORMAT_STRINGS.get(format));
    String valueToPrint = "";
    ZonedDateTime zonedDateTime = currentDate.atZone(ZoneOffset.UTC);
    if (zonedDateTime.toInstant().toEpochMilli() != 0 && zonedDateTime.getNano() != 0) {
        valueToPrint = formatter.format(currentDate);
    }
    return valueToPrint;
}

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From source file:jgnash.convert.exportantur.csv.CsvExport.java

public static void exportAccount(final Account account, final LocalDate startDate, final LocalDate endDate,
        final File file) {
    Objects.requireNonNull(account);
    Objects.requireNonNull(startDate);
    Objects.requireNonNull(endDate);
    Objects.requireNonNull(file);

    // force a correct file extension
    final String fileName = FileUtils.stripFileExtension(file.getAbsolutePath()) + ".csv";

    final CSVFormat csvFormat = CSVFormat.EXCEL.withQuoteMode(QuoteMode.ALL);

    try (final OutputStreamWriter outputStreamWriter = new OutputStreamWriter(
            Files.newOutputStream(Paths.get(fileName)), StandardCharsets.UTF_8);
            final CSVPrinter writer = new CSVPrinter(new BufferedWriter(outputStreamWriter), csvFormat)) {

        outputStreamWriter.write('\ufeff'); // write UTF-8 byte order mark to the file for easier imports

        writer.printRecord("Account", "Number", "Debit", "Credit", "Balance", "Date", "Timestamp", "Memo",
                "Payee", "Reconciled");

        // write the transactions
        final List<Transaction> transactions = account.getTransactions(startDate, endDate);

        final DateTimeFormatter dateTimeFormatter = new DateTimeFormatterBuilder().appendValue(YEAR, 4)
                .appendValue(MONTH_OF_YEAR, 2).appendValue(DAY_OF_MONTH, 2).toFormatter();

        final DateTimeFormatter timestampFormatter = new DateTimeFormatterBuilder().appendValue(YEAR, 4)
                .appendLiteral('-').appendValue(MONTH_OF_YEAR, 2).appendLiteral('-')
                .appendValue(DAY_OF_MONTH, 2).appendLiteral(' ').appendValue(HOUR_OF_DAY, 2).appendLiteral(':')
                .appendValue(MINUTE_OF_HOUR, 2).appendLiteral(':').appendValue(SECOND_OF_MINUTE, 2)
                .toFormatter();//from   w w  w.  j  a  va2s  .com

        for (final Transaction transaction : transactions) {
            final String date = dateTimeFormatter.format(transaction.getLocalDate());

            final String timeStamp = timestampFormatter.format(transaction.getTimestamp());

            final String credit = transaction.getAmount(account).compareTo(BigDecimal.ZERO) < 0 ? ""
                    : transaction.getAmount(account).abs().toPlainString();

            final String debit = transaction.getAmount(account).compareTo(BigDecimal.ZERO) > 0 ? ""
                    : transaction.getAmount(account).abs().toPlainString();

            final String balance = account.getBalanceAt(transaction).toPlainString();

            final String reconciled = transaction.getReconciled(account) == ReconciledState.NOT_RECONCILED
                    ? Boolean.FALSE.toString()
                    : Boolean.TRUE.toString();

            writer.printRecord(account.getName(), transaction.getNumber(), debit, credit, balance, date,
                    timeStamp, transaction.getMemo(), transaction.getPayee(), reconciled);
        }
    } catch (final IOException e) {
        Logger.getLogger(CsvExport.class.getName()).log(Level.SEVERE, e.getLocalizedMessage(), e);
    }
}

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From source file:sample.formatter.LocalDateTimeFormatter.java

@Override
public String print(LocalDateTime temporal, Locale locale) {
    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
    return formatter.format(temporal);
}

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From source file:org.openlmis.fulfillment.web.util.StatusChangeDto.java

/**
 * Print createdDate for display purposes.
 * @return created date/*from   ww w . ja v  a2s.c  om*/
 */
@JsonIgnore
public String printDate() {
    Locale locale = LocaleContextHolder.getLocale();
    String datePattern = DateTimeFormatterBuilder.getLocalizedDateTimePattern(FormatStyle.MEDIUM,
            FormatStyle.MEDIUM, Chronology.ofLocale(locale), locale);
    DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(datePattern);

    return dateTimeFormatter.format(createdDate);
}

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From source file:Graphite.java

private String getDateAsString(long start) {
    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("HH:mm_yyyyMMdd").withZone(zoneId);
    return formatter.format(Instant.ofEpochMilli(start));
}

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From source file:de.bytefish.fcmjava.client.tests.interceptors.response.utils.RetryHeaderUtilsTest.java

@Test
public void headerFoundWithDateTimeInFutureContentTest() {

    // We assume the HTTP Header to contain an RFC1123-compliant DateTime value:
    DateTimeFormatter formatter = DateTimeFormatter.RFC_1123_DATE_TIME;

    String formattedStringInFuture = formatter.format(DateUtils.getUtcNow().plusYears(1));

    // Expectations
    when(headerMock.getValue()).thenReturn(formattedStringInFuture);

    when(httpResponseMock.getFirstHeader("Retry-After")).thenReturn(headerMock);

    // Holds the Result:
    OutParameter<Duration> result = new OutParameter<Duration>();

    // Try to get the Result:
    boolean success = RetryHeaderUtils.tryDetermineRetryDelay(httpResponseMock, result);

    // Assertions:
    Assert.assertEquals(true, success);/*from   w  w  w.j ava  2s  .  c o m*/
    Assert.assertNotEquals(0, result.get().getSeconds());
    Assert.assertTrue(result.get().getSeconds() > 120);
}

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From source file:de.bytefish.fcmjava.client.tests.http.apache.utils.RetryHeaderUtilsTest.java

@Test
public void headerFoundWithDateTimeInFutureContentTest() {

    // We assume the HTTP Header to contain an RFC1123-compliant DateTime value:
    DateTimeFormatter formatter = DateTimeFormatter.RFC_1123_DATE_TIME;

    String formattedStringInFuture = formatter.format(DateUtils.getUtcNow().plusYears(1));

    // Expectations
    when(headerMock.getValue()).thenReturn(formattedStringInFuture);

    when(httpResponseMock.getFirstHeader("Retry-After")).thenReturn(headerMock);

    // Holds the Result:
    OutParameter<Duration> result = new OutParameter<>();

    // Try to get the Result:
    boolean success = RetryHeaderUtils.tryDetermineRetryDelay(httpResponseMock, result);

    // Assertions:
    Assert.assertEquals(true, success);/* ww  w.j ava 2  s.  c  o m*/
    Assert.assertNotEquals(0, result.get().getSeconds());
    Assert.assertTrue(result.get().getSeconds() > 120);
}

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From source file:RequestStat.java

private String getDateFromInstant(long start) {
    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd " + "HH:mm:ss")
            .withZone(ZoneId.systemDefault());
    return formatter.format(Instant.ofEpochMilli(start));
}

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