public virtual T Get(string objId, out OptimisticConcurrencyContext context)
{
OptimisticConcurrencyContext optimisticContext = null;
var result = this.StorageRetryPolicy.ExecuteAction <T>(() =>
{
try
{
CloudBlob blob = this.Container.GetBlobReference(objId);
blob.FetchAttributes();
optimisticContext = new OptimisticConcurrencyContext(blob.Properties.ETag)
{
ObjectId = objId
};
return(this.ReadObject(blob));
}
catch (StorageClientException ex)
{
TraceHelper.TraceWarning(ex.TraceInformation());
if (HttpStatusCode.NotFound.Equals(ex.StatusCode) &&
(StorageErrorCode.BlobNotFound.Equals(ex.ErrorCode) ||
StorageErrorCode.ResourceNotFound.Equals(ex.ErrorCode)))
{
optimisticContext = this.GetContextForUnexistentBlob(objId);
return(default(T));
}
throw;
}
});
context = optimisticContext;
return(result);
}
public virtual T Get(string objId, out OptimisticConcurrencyContext context)
{
OptimisticConcurrencyContext optimisticContext = null;
var result = this.StorageRetryPolicy.ExecuteAction <T>(() =>
{
try
{
var blob = this.Container.GetBlockBlobReference(objId);
blob.FetchAttributes();
optimisticContext = new OptimisticConcurrencyContext(blob.Properties.ETag)
{
ObjectId = objId
};
return(this.ReadObject(blob));
}
catch (StorageException ex)
{
var requestInformation = ex.RequestInformation;
var statusCode = (System.Net.HttpStatusCode)requestInformation.HttpStatusCode;//request
TraceHelper.TraceWarning(ex.TraceInformation());
if (HttpStatusCode.NotFound.Equals(statusCode))
{
optimisticContext = this.GetContextForUnexistentBlob(objId);
return(default(T));
}
throw;
}
});
context = optimisticContext;
return(result);
}
public virtual T Get(string objId, out OptimisticConcurrencyContext context)
{
OptimisticConcurrencyContext optimisticContext = null;
var result = this.StorageRetryPolicy.ExecuteAction <T>(() =>
{
try
{
return(this.DoGet(objId, out optimisticContext));
}
catch (StorageClientException ex)
{
TraceHelper.TraceWarning(ex.TraceInformation());
if (HttpStatusCode.NotFound.Equals(ex.StatusCode) &&
(StorageErrorCode.BlobNotFound.Equals(ex.ErrorCode) ||
StorageErrorCode.ResourceNotFound.Equals(ex.ErrorCode)))
{
optimisticContext = this.GetContextForUnexistentBlob(objId);
return(default(T));
}
throw;
}
});
context = optimisticContext;
return(result);
}
public virtual void Save(string objId, T obj)
{
var context = new OptimisticConcurrencyContext()
{
ObjectId = objId
};
this.Save(context, obj);
}
protected override void DoSave(string objId, T obj)
{
OptimisticConcurrencyContext context = new OptimisticConcurrencyContext()
{
ObjectId = objId
};
this.DoSave(context, obj);
}
protected override byte[] DoGet(string objId, out OptimisticConcurrencyContext context)
{
CloudBlob blob = this.Container.GetBlobReference(objId);
blob.FetchAttributes();
context = new OptimisticConcurrencyContext(blob.Properties.ETag)
{
ObjectId = objId
};
return(blob.DownloadByteArray());
}
protected override T DoGet(string objId, out OptimisticConcurrencyContext context)
{
CloudBlob blob = this.Container.GetBlobReference(objId);
blob.FetchAttributes();
context = new OptimisticConcurrencyContext(blob.Properties.ETag)
{
ObjectId = objId
};
return(new JavaScriptSerializer().Deserialize <T>(blob.DownloadText()));
}
protected abstract T DoGet(string objId, out OptimisticConcurrencyContext context);
