com.amazonaws.auth.internal.SignerKey Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of aws-java-sdk-osgi Show documentation

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).

There is a newer version: 1.11.60

Show newest version

/*
 * 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.auth.internal;

import com.amazonaws.annotation.Immutable;

/**
 * Holds the signing key and the number of days since epoch for the date for
 * which the signing key was generated.
 */
@Immutable
public final class SignerKey {

    private final long numberOfDaysSinceEpoch;

    private final byte[] signingKey;

    public SignerKey(long numberOfDaysSinceEpoch, byte[] signingKey) {
        if (numberOfDaysSinceEpoch <= 0L) {
            throw new IllegalArgumentException(
                    "Not able to cache signing key. Signing date to be cached is invalid");
        }
        if (signingKey == null) {
            throw new IllegalArgumentException(
                    "Not able to cache signing key. Signing Key to be cached are null");
        }
        this.numberOfDaysSinceEpoch = numberOfDaysSinceEpoch;
        this.signingKey = signingKey.clone();
    }

    /**
     * Returns the number of days since epoch for the date used for generating
     * signing key.
     */
    public long getNumberOfDaysSinceEpoch() {
        return numberOfDaysSinceEpoch;
    }

    /**
     * Returns a copy of the signing key.
     */
    public byte[] getSigningKey() {
        return signingKey.clone();
    }
}