private static async Task <PutBucketResponse> CreateIfNotExistsAsync(
AWSS3StorageCacheOptions options,
S3CannedACL acl)
{
AmazonS3Client client = AmazonS3ClientFactory.CreateClient(options);
bool foundBucket = false;
ListBucketsResponse listBucketsResponse = await client.ListBucketsAsync();
foreach (S3Bucket b in listBucketsResponse.Buckets)
{
if (b.BucketName == options.BucketName)
{
foundBucket = true;
break;
}
}
if (!foundBucket)
{
var putBucketRequest = new PutBucketRequest
{
BucketName = options.BucketName,
BucketRegion = options.Region,
CannedACL = acl
};
return(await client.PutBucketAsync(putBucketRequest));
}
return(null);
}
/// <summary>
/// Initializes a new instance of the <see cref="AWSS3StorageCache"/> class.
/// </summary>
/// <param name="cacheOptions">The cache options.</param>
public AWSS3StorageCache(IOptions <AWSS3StorageCacheOptions> cacheOptions)
{
Guard.NotNull(cacheOptions, nameof(cacheOptions));
AWSS3StorageCacheOptions options = cacheOptions.Value;
this.bucket = options.BucketName;
this.amazonS3Client = AmazonS3ClientFactory.CreateClient(options);
}
/// <summary>
/// Creates a new bucket under the specified account if a bucket
/// with the same name does not already exist.
/// </summary>
/// <param name="options">The AWS S3 Storage cache options.</param>
/// <param name="acl">
/// Specifies whether data in the bucket may be accessed publicly and the level of access.
/// <see cref="S3CannedACL.PublicRead"/> specifies full public read access for bucket
/// and object data. <see cref="S3CannedACL.Private"/> specifies that the bucket
/// data is private to the account owner.
/// </param>
/// <returns>
/// If the bucket does not already exist, a <see cref="PutBucketResponse"/> describing the newly
/// created bucket. If the container already exists, <see langword="null"/>.
/// </returns>
public static PutBucketResponse CreateIfNotExists(
AWSS3StorageCacheOptions options,
S3CannedACL acl)
=> AsyncHelper.RunSync(() => CreateIfNotExistsAsync(options, acl));
