Migrate AttributeValue #7199
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| /* | ||
| * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * A copy of the License is located at | ||
| * | ||
| * http://aws.amazon.com/apache2.0 | ||
| * | ||
| * or in the "license" file accompanying this file. This file 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 software.amazon.awssdk.mapper.dynamodb; | ||
|
|
||
| import java.util.Arrays; | ||
| import java.util.Date; | ||
| import java.util.List; | ||
|
|
||
| import org.joda.time.DateTimeZone; | ||
| import org.joda.time.format.DateTimeFormat; | ||
| import org.joda.time.format.DateTimeFormatter; | ||
| import org.joda.time.format.ISODateTimeFormat; | ||
| import org.joda.time.tz.FixedDateTimeZone; | ||
|
|
||
| import software.amazon.awssdk.annotations.SdkInternalApi; | ||
|
|
||
| /** | ||
| * A thin port of only the ISO-8601 parse/format methods of the v1 {@code com.amazonaws.util.DateUtils} | ||
| * that the mapper's converter layer uses, kept on the same Joda-Time formatters to preserve byte-for-byte | ||
| * compatibility with dates written by the v1 mapper. | ||
| */ | ||
| @SdkInternalApi | ||
| public final class MapperDateUtils { | ||
|
|
||
|
|
||
| private static final DateTimeZone GMT = new FixedDateTimeZone("GMT", "GMT", 0, 0); | ||
| private static final long MILLI_SECONDS_OF_365_DAYS = 365L * 24 * 60 * 60 * 1000; | ||
|
|
||
| /** ISO 8601 format. */ | ||
| private static final DateTimeFormatter ISO8601_DATE_FORMAT = | ||
| ISODateTimeFormat.dateTime().withZone(GMT); | ||
|
|
||
| /** Alternate ISO 8601 format without fractional seconds. */ | ||
| private static final DateTimeFormatter ALTERNATE_ISO8601_DATE_FORMAT = | ||
| DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss'Z'").withZone(GMT); | ||
|
|
||
| /** ISO 8601 format with a UTC offset. */ | ||
| private static final DateTimeFormatter ISO8601_DATE_FORMAT_WITH_OFFSET = | ||
| DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ssZZ"); | ||
|
|
||
| private static final List<DateTimeFormatter> ALTERNATE_ISO8601_FORMATTERS = Arrays.asList( | ||
| ALTERNATE_ISO8601_DATE_FORMAT, ISO8601_DATE_FORMAT_WITH_OFFSET); | ||
|
|
||
| private MapperDateUtils() { | ||
| } | ||
|
|
||
| /** | ||
| * Parses the specified date string as an ISO 8601 date and returns the {@link Date} object. | ||
| * | ||
| * @param dateStringOrig the date string to parse | ||
| * @return the parsed {@link Date} object | ||
| */ | ||
| public static Date parseISO8601Date(final String dateStringOrig) { | ||
| String dateString = dateStringOrig; | ||
|
|
||
| // For EC2 Spot Fleet. | ||
| if (dateString.endsWith("+0000")) { | ||
| dateString = dateString | ||
| .substring(0, dateString.length() - 5) | ||
| .concat("Z"); | ||
| } | ||
|
|
||
| // https://github.com/aws/aws-sdk-java/issues/233 | ||
| String temp = tempDateStringForJodaTime(dateString); | ||
| try { | ||
| if (temp.equals(dateString)) { | ||
| // Normal case: nothing special here | ||
| return new Date(ISO8601_DATE_FORMAT.parseMillis(dateString)); | ||
| } | ||
| // Handling edge case: | ||
| // Joda-time can only handle up to year 292278993 but we are given | ||
| // 292278994; So we parse the date string by first adjusting | ||
| // the year to 292278993. Then we add 1 year back afterwards. | ||
| final long milliLess365Days = ISO8601_DATE_FORMAT.parseMillis(temp); | ||
| final long milli = milliLess365Days + MILLI_SECONDS_OF_365_DAYS; | ||
| if (milli < 0) { // overflow! | ||
| // re-parse the original date string using JodaTime so as to | ||
| // throw an exception with a consistent message | ||
| return new Date(ISO8601_DATE_FORMAT.parseMillis(dateString)); | ||
| } | ||
| return new Date(milli); | ||
| } catch (IllegalArgumentException e) { | ||
| for (DateTimeFormatter dateTimeFormatter : ALTERNATE_ISO8601_FORMATTERS) { | ||
| try { | ||
| // If the first ISO 8601 parser didn't work, try the alternate | ||
| // version which doesn't include fractional seconds | ||
| return new Date(dateTimeFormatter.parseMillis(dateString)); | ||
| } catch (Exception oops) { | ||
| // ignore | ||
| } | ||
| } | ||
|
|
||
| throw e; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Formats the specified date as an ISO 8601 string. | ||
| * | ||
| * @param date the date to format | ||
| * @return the ISO 8601 string representing the specified date | ||
| */ | ||
| public static String formatISO8601Date(final Date date) { | ||
| return ISO8601_DATE_FORMAT.print(date.getTime()); | ||
| } | ||
|
|
||
| /** | ||
| * Returns a date string with the prefix temporarily substituted, if applicable, so that | ||
| * JodaTime can handle it. Otherwise, if not applicable, the original date string is returned. | ||
| * | ||
| * <p>See https://github.com/aws/aws-sdk-java/issues/233</p> | ||
| */ | ||
| private static String tempDateStringForJodaTime(final String dateString) { | ||
| final String fromPrefix = "292278994-"; | ||
| final String toPrefix = "292278993-"; | ||
| return dateString.startsWith(fromPrefix) | ||
| ? toPrefix + dateString.substring(fromPrefix.length()) | ||
| : dateString; | ||
| } | ||
| } | ||
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Do we need to keep using Joda time for this internal class?