com.amazonaws.services.dynamodbv2.datamodeling.unmarshallers.CalendarSetUnmarshaller Maven / Gradle / Ivy

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The AWS SDK for Java with support for OSGi. The AWS SDK for Java provides Java APIs for building software on AWS' cost-effective, scalable, and reliable infrastructure products. The AWS Java SDK allows developers to code against APIs for all of Amazon's infrastructure web services (Amazon S3, Amazon EC2, Amazon SQS, Amazon Relational Database Service, Amazon AutoScaling, etc).

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/*
 * Copyright 2014-2016 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.
 * You may obtain a copy of the License at:
 *
 *    http://aws.amazon.com/apache2.0
 *
 * 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 com.amazonaws.services.dynamodbv2.datamodeling.unmarshallers;

import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.HashSet;
import java.util.Set;

import com.amazonaws.services.dynamodbv2.model.AttributeValue;
import com.amazonaws.util.DateUtils;

/**
 * An unmarshaller that unmarshals sets of ISO-8601-formatted dates as sets of
 * Java {@code Calendar} objects.
 */
public class CalendarSetUnmarshaller extends SSUnmarshaller {

    private static final CalendarSetUnmarshaller INSTANCE =
            new CalendarSetUnmarshaller();

    public static CalendarSetUnmarshaller instance() {
        return INSTANCE;
    }

    private CalendarSetUnmarshaller() {
    }

    @Override
    public Object unmarshall(AttributeValue value) {
        Set result = new HashSet();

        for (String s : value.getSS()) {
            Calendar cal = GregorianCalendar.getInstance();
            cal.setTime(DateUtils.parseISO8601Date(s));
            result.add(cal);
        }

        return result;
    }
}