protected override byte[] LoadDocument(BiblosDS.Library.Common.Objects.Document Document)
{
if (string.IsNullOrEmpty(Document.Storage.AuthenticationKey))
{
Document.Storage = StorageService.GetStorage(Document.Storage.IdStorage);
}
StorageAccountInfo account = StorageAccountInfo.GetAccountInfoFromConfiguration(
string.Empty,
Document.Storage.MainPath,
Document.Storage.AuthenticationKey,
true);
BlobStorage blobStorage = BlobStorage.Create(account);
blobStorage.RetryPolicy = RetryPolicies.RetryN(2, TimeSpan.FromMilliseconds(100));
//Check if exist storage area
//If exist put the storage in the configured path
if (!string.IsNullOrEmpty(Document.StorageArea.Path))
{
container = blobStorage.GetBlobContainer(Document.Storage.Name.ToLower() + Document.StorageArea.Path.ToLower());
}
else
{
container = blobStorage.GetBlobContainer(Document.Storage.Name.ToLower());
}
BlobContents contents = new BlobContents(new MemoryStream());
BlobProperties blob = container.GetBlob(GetFileName(Document), contents, false);
return(contents.AsBytes());
}
/// <summary> /// Gets the blob contents and properties if the blob has not been modified since the time specified. /// Use this method if you have cached the contents of a blob and want to avoid retrieving the blob /// if it has not changed since the last time you retrieved it. /// </summary> /// <param name="blobProperties">The properties of the blob obtained from an earlier call to GetBlob. This /// parameter is updated by the call if the blob has been modified</param> /// <param name="blobContents">Contains the stream to which the contents of the blob are written if it has been /// modified</param> /// <param name="transferAsChunks">Should the blob be gotten in pieces. This requires more round-trips, but will retry smaller pieces in case of failure.</param> /// <returns>true if the blob has been modified, false otherwise</returns> public abstract bool GetBlobIfModified(BlobProperties blobProperties, BlobContents blobContents, bool transferAsChunks);
/// <summary> /// Get the blob contents and properties if the blob exists /// </summary> /// <param name="name">The name of the blob</param> /// <param name="blobContents">Object in which the contents are returned. /// This object should contain a writable stream or should be a default constructed object.</param> /// <param name="transferAsChunks">Should the blob be gotten in pieces. This requires more round-trips, but will retry smaller pieces in case of failure.</param> /// <returns>The properties of the blob if the blob exists.</returns> public abstract BlobProperties GetBlob(string name, BlobContents blobContents, bool transferAsChunks);
/// <summary> /// Updates an existing blob if it has not been modified since the specified time which is typically /// the last modified time of the blob when you retrieved it. /// Use this method to implement optimistic concurrency by avoiding clobbering changes to the blob /// made by another writer. /// </summary> /// <param name="blob">The properties of the blob. This object should be one previously /// obtained from a call to GetBlob or GetBlobProperties and have its LastModifiedTime property set.</param> /// <param name="contents">The contents of the blob. The contents of the blob should be readable</param> /// <returns>true if the blob was updated. false if the blob has changed since the last time</returns> /// <remarks>The LastModifiedTime property of <paramref name="blob"/> is set as a result of this call. /// This method also has an effect on the ETag values that are managed by the service if the update was /// successful.</remarks> public abstract bool UpdateBlobIfNotModified(BlobProperties blob, BlobContents contents);
/// <summary> /// Create a new blob or overwrite an existing blob. /// </summary> /// <param name="blobProperties">The properties of the blob</param> /// <param name="blobContents">The contents of the blob</param> /// <param name="overwrite">Should this request overwrite an existing blob ?</param> /// <returns>true if the blob was created. false if the blob already exists and <paramref name="overwrite"/>was set to false</returns> /// <remarks>The LastModifiedTime property of <paramref name="blobProperties"/> is set as a result of this call. /// This method also has an effect on the ETag values that are managed by the service.</remarks> public abstract bool CreateBlob(BlobProperties blobProperties, BlobContents blobContents, bool overwrite);
