/*
* 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.BinarySetAttributeMarshaller;
import com.amazonaws.services.dynamodbv2.model.AttributeValue;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
/**
* A marshaller that marshals sets of Java {@code ByteBuffer}s into DynamoDB
* BinarySet attributes.
*/
public class ByteBufferSetToBinarySetMarshaller
implements BinarySetAttributeMarshaller {
private static final ByteBufferSetToBinarySetMarshaller INSTANCE =
new ByteBufferSetToBinarySetMarshaller();
public static ByteBufferSetToBinarySetMarshaller instance() {
return INSTANCE;
}
private ByteBufferSetToBinarySetMarshaller() {
}
@Override
public AttributeValue marshall(Object obj) {
@SuppressWarnings("unchecked")
Set<ByteBuffer> buffers = (Set<ByteBuffer>) obj;
List<ByteBuffer> attributes = new ArrayList<ByteBuffer>(buffers.size());
for (ByteBuffer b : buffers) {
attributes.add(b);
}
return new AttributeValue().withBS(attributes);
}
}