/*
* 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.mobileconnectors.dynamodbv2.dynamodbmapper.marshallers;
import com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.ArgumentMarshaller.StringSetAttributeMarshaller;
import com.amazonaws.services.dynamodbv2.model.AttributeValue;
import com.amazonaws.util.DateUtils;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;
import java.util.Set;
/**
* A marshaller that marshals sets of Java {@code Calendar} objects into
* DynamoDB StringSets (in ISO 8601 format, ie {"2014-01-01T00:00:00Z", ...}).
*/
public class CalendarSetToStringSetMarshaller
implements StringSetAttributeMarshaller {
private static final CalendarSetToStringSetMarshaller INSTANCE =
new CalendarSetToStringSetMarshaller();
public static CalendarSetToStringSetMarshaller instance() {
return INSTANCE;
}
private CalendarSetToStringSetMarshaller() {
}
@Override
public AttributeValue marshall(Object obj) {
@SuppressWarnings("unchecked")
Set<Calendar> dates = (Set<Calendar>) obj;
List<String> timestamps = new ArrayList<String>(dates.size());
for (Calendar date : dates) {
timestamps.add(DateUtils.formatISO8601Date(date.getTime()));
}
return new AttributeValue().withSS(timestamps);
}
}