/// <summary>
/// Get files from azure blob storage
/// </summary>
/// <param name="container">Azure storage Blob container name</param>
/// <param name="blobName">blob file name</param>
/// <param name="downloadDataType">Download return data</param>
/// <returns>Blob information in a specific format</returns>
public T GetBlobInformation <T>(string container, string blobName, DownloadDataType downloadDataType)
{
try
{
var blobContainer = BlobReference(container);
if (!blobContainer.Exists())
{
throw new Exception("Blob Container does not exist.");
}
var blob = blobContainer.GetBlockBlobReference(blobName);
if (!blob.Exists())
{
throw new Exception("Blob does not exist.");
}
return((T)GetData(blob, downloadDataType));
}
catch (Exception ex)
{
throw ex;
}
}
private object GetData(CloudBlockBlob blob, DownloadDataType downloadDataType)
{
switch (downloadDataType)
{
case DownloadDataType.Text:
return(blob.DownloadText());
case DownloadDataType.ByteArray:
var document = new byte[blob.Properties.Length];
blob.DownloadToByteArray(document, 0);
return(document);
default:
throw new ArgumentOutOfRangeException("downloadDataType");
}
}
/// <summary>
/// 通信優先度を取得する
/// </summary>
/// <returns><c>static void</c></returns>
public static int GetNetPriority(this DownloadDataType type)
{
return(NET_PRIORITY_LIST[(int)type]);
}
/// <summary>
/// Get files from azure file storage
/// </summary>
/// <param name="fileService">Unit name or File service</param>
/// <param name="directory">File share folder (string.empty if not has folder)</param>
/// <param name="fileName">File names with extension (i.e. file_name.extension)</param>
/// <param name="downloadDataType">Download return data</param>
/// <returns>File information in a specific format</returns>
public T GetFileInformation <T>(string fileService, string directory, string fileName, DownloadDataType downloadDataType)
{
try
{
var context = FileReference(fileService);
if (!context.Exists())
{
throw new Exception("Error trying to retreive file data.");
}
var dir = GetDirectory(context, directory);
if (!dir.Exists())
{
throw new Exception("Directory entry does not exist");
}
var file = dir.GetFileReference(fileName);
if (!file.Exists())
{
throw new Exception("File searched does not exist");
}
return((T)GetData(file, downloadDataType));
}
catch (Exception ex)
{
throw ex;
}
}
