// Get additional assemblies from azure storage
private async Task <IEnumerable <Assembly> > GetDependencyAssembliesFromStorageAsync()
{
IEnumerable <Assembly> additionalAssemblies = new List <Assembly>();
var mefStorageAccountName = Settings.MefStorageAccountName;
var mefContainerName = Settings.MefContainerName;
if (string.IsNullOrEmpty(mefStorageAccountName) || string.IsNullOrEmpty(mefContainerName))
{
return(additionalAssemblies);
}
var mefBlobDirectory = Settings.MefBlobDirectory;
BlobStorageMSI blobStorage = new BlobStorageMSI(mefStorageAccountName);
var dlls = blobStorage.GetCloudBlockBlobs(mefContainerName, mefBlobDirectory);
foreach (var blob in dlls)
{
if (blob.Name.EndsWith(".dll"))
{
using (var strm = new MemoryStream())
{
await blob.DownloadToStreamAsync(strm);
byte[] asseblyBytes = strm.ToArray();
var assembly = Assembly.Load(asseblyBytes);
additionalAssemblies = additionalAssemblies.Append(assembly);
}
}
}
return(additionalAssemblies);
}
// Get additional assemblies from azure storage
private async Task <IEnumerable <Assembly> > GetDependencyAssembliesFromStorageAsync()
{
IEnumerable <Assembly> additionalAssemblies = new List <Assembly>();
var mefStorageAccountName = ServiceFabricUtil.GetServiceFabricConfigSetting("MefStorageAccountName").Result.ToString();
var mefContainerName = ServiceFabricUtil.GetServiceFabricConfigSetting("MefContainerName").Result.ToString();
if (string.IsNullOrEmpty(mefStorageAccountName) || string.IsNullOrEmpty(mefContainerName))
{
return(additionalAssemblies);
}
var mefBlobDirectory = ServiceFabricUtil.GetServiceFabricConfigSetting("MefBlobDirectory").Result.ToString();
BlobStorageMSI blobStorage = new BlobStorageMSI(mefStorageAccountName);
var dlls = blobStorage.GetCloudBlockBlobs(mefContainerName, mefBlobDirectory);
// Configure and create a logger instance
var logger = _loggerFactory.CreateLogger <Startup>();
foreach (var blob in dlls)
{
if (blob.Name.EndsWith(".dll"))
{
using (var strm = new MemoryStream())
{
await blob.DownloadToStreamAsync(strm);
byte[] asseblyBytes = strm.ToArray();
try
{
var assembly = Assembly.Load(asseblyBytes);
additionalAssemblies = additionalAssemblies.Append(assembly);
}
catch (BadImageFormatException be)
{
// Do nothing and skip the assembly to load as it might be a native assembly
logger.LogError(be, "Unable to load Assembly: {0} from the StorageAccount", blob.Name);
}
}
}
}
return(additionalAssemblies);
}
