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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.
 * 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 com.amazonaws.services.s3.model;
import java.io.Serializable;

public class SSEAwsKeyManagementParams implements Serializable {

    /**
     * The AWS Key Management Key id to be used for Server Side Encryption of
     * the Amazon S3 object.
     */
    private final String awsKmsKeyId;

    /**
     * Constructs a new instance of SSEAwsKeyManagementParams. The default AWS
     * KMS Key id is used for encryption.
     */
    public SSEAwsKeyManagementParams() {
        this.awsKmsKeyId = null;
    }

    /**
     * Constructs a new instance of SSEAwsKeyManagementParams with the user
     * specified AWS Key Management System Key Id.
     */
    public SSEAwsKeyManagementParams(String awsKmsKeyId) {
        if (awsKmsKeyId == null || awsKmsKeyId.trim().isEmpty()) {
            throw new IllegalArgumentException(
                    "AWS Key Management System Key id cannot be null");
        }
        this.awsKmsKeyId = awsKmsKeyId;
    }

    /**
     * Returns the AWS Key Management System Key Id used for encryption. Returns
     * null if default Key Id is used.
     */
    public String getAwsKmsKeyId() {
        return awsKmsKeyId;
    }

    /**
     * Returns the scheme used for encrypting the Amazon S3 object. Currently
     * the encryption is always "aws:kms".
     */
    public String getEncryption() {
        return SSEAlgorithm.KMS.getAlgorithm();
    }
}