| /* |
| * Copyright 2015-present Open Networking Foundation |
| * |
| * 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.onosproject.ui.table.cell; |
| |
| |
| import static java.time.temporal.ChronoField.CLOCK_HOUR_OF_AMPM; |
| import static java.time.temporal.ChronoField.MINUTE_OF_HOUR; |
| import static java.time.temporal.ChronoField.SECOND_OF_MINUTE; |
| |
| import java.time.DateTimeException; |
| import java.time.Instant; |
| import java.time.ZoneId; |
| import java.time.format.DateTimeFormatter; |
| import java.time.format.DateTimeFormatterBuilder; |
| import java.time.temporal.ChronoField; |
| import java.time.temporal.TemporalAccessor; |
| import java.util.Locale; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Formats time values using {@link DateTimeFormatter}. |
| */ |
| public final class TimeFormatter extends AbstractCellFormatter { |
| |
| private static final Logger log = LoggerFactory.getLogger(TimeFormatter.class); |
| |
| private DateTimeFormatter dtf; |
| |
| // NOTE: Unlike other formatters in this package, this one is not |
| // implemented as a Singleton, because instances may be |
| // decorated with alternate locale and/or timezone. |
| |
| /** |
| * Constructs a time formatter that uses the default locale and timezone. |
| */ |
| public TimeFormatter() { |
| dtf = new DateTimeFormatterBuilder() |
| .appendValue(CLOCK_HOUR_OF_AMPM) |
| .appendLiteral(':') |
| .appendValue(MINUTE_OF_HOUR, 2) |
| .optionalStart() |
| .appendLiteral(':') |
| .appendValue(SECOND_OF_MINUTE, 2) |
| .appendLiteral(' ') |
| .appendText(ChronoField.AMPM_OF_DAY) |
| .optionalStart() |
| .appendLiteral(' ') |
| .appendOffset("+HH:MM", "+00:00") |
| .toFormatter() |
| .withLocale(Locale.getDefault()) |
| .withZone(ZoneId.systemDefault()); |
| } |
| |
| /** |
| * Sets the locale to use for formatting the time. |
| * |
| * @param locale locale to use for formatting |
| * @return self, for chaining |
| */ |
| public TimeFormatter withLocale(Locale locale) { |
| dtf = dtf.withLocale(locale); |
| return this; |
| } |
| |
| /** |
| * Sets the time zone to use for formatting the time. |
| * |
| * @param zone time zone to use |
| * @return self, for chaining |
| */ |
| public TimeFormatter withZone(ZoneId zone) { |
| dtf = dtf.withZone(zone); |
| return this; |
| } |
| |
| @Override |
| protected String nonNullFormat(Object value) { |
| if (value instanceof TemporalAccessor) { |
| try { |
| return dtf.format((TemporalAccessor) value); |
| } catch (DateTimeException e) { |
| log.error("Failed formatting {} [{}]", value, value.getClass().getSimpleName(), e); |
| log.warn("dtf zone was {}", dtf.getZone()); |
| throw e; |
| } |
| } else if (value instanceof org.joda.time.DateTime) { |
| return dtf.format(Instant.ofEpochMilli(((org.joda.time.DateTime) value).getMillis())); |
| } |
| // should never reach here |
| return String.valueOf(value); |
| } |
| |
| } |