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This led to confusion for an open source contributor about how to format code. We don't want to be like, "do as I say, not as I do." https://google.github.io/styleguide/javaguide.html#s7.1.2-javadoc-paragraphs ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=122589700
58 lines
2.4 KiB
Java
58 lines
2.4 KiB
Java
// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.tools.params;
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import static org.joda.time.DateTimeZone.UTC;
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import com.google.common.primitives.Longs;
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import org.joda.time.DateTime;
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import org.joda.time.format.DateTimeFormatter;
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import org.joda.time.format.DateTimeFormatterBuilder;
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import org.joda.time.format.DateTimeParser;
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import org.joda.time.format.ISODateTimeFormat;
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/** {@linkplain DateTime} CLI parameter converter/validator. Can be ISO or millis from epoch. */
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public final class DateTimeParameter extends ParameterConverterValidator<DateTime> {
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public DateTimeParameter() {
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super("not an ISO-8601 timestamp (or millis from epoch)");
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}
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/**
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* Parser for DateTimes that permits only a restricted subset of ISO 8601 datetime syntax.
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* The supported format is "YYYY-MM-DD'T'HH:MM:SS[.SSS]ZZ", i.e. there must be a complete date
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* and at least hours, minutes, seconds, and time zone; milliseconds are optional.
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*
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* <p>We use this instead of the default {@link ISODateTimeFormat#dateTimeParser()} because that
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* parser is very flexible and accepts date times with missing dates, missing dates, and various
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* other unspecified fields that can lead to confusion and ambiguity.
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*/
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private static final DateTimeFormatter STRICT_DATE_TIME_PARSER = new DateTimeFormatterBuilder()
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.append(null, new DateTimeParser[] {
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// The formatter will try the following parsers in order until one succeeds.
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ISODateTimeFormat.dateTime().getParser(),
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ISODateTimeFormat.dateTimeNoMillis().getParser()})
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.toFormatter();
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@Override
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public DateTime convert(String value) {
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Long millis = Longs.tryParse(value);
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if (millis != null) {
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return new DateTime(millis.longValue(), UTC);
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}
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return DateTime.parse(value, STRICT_DATE_TIME_PARSER).withZone(UTC);
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}
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}
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