private static StorageException Create(int httpStatusCode, XElement extendedErrorElement)
{
// Unfortunately, the RequestResult properties are all internal-only settable. ReadXml is the only way to
// create a populated RequestResult instance.
XElement requestResultElement = new XElement("RequestResult",
new XElement("HTTPStatusCode", httpStatusCode),
new XElement("HttpStatusMessage"),
new XElement("TargetLocation"),
new XElement("ServiceRequestID"),
new XElement("ContentMd5"),
new XElement("Etag"),
new XElement("RequestDate"),
new XElement("StartTime", DateTime.Now),
new XElement("EndTime", DateTime.Now),
extendedErrorElement);
RequestResult result = new RequestResult();
using (XmlReader reader = requestResultElement.CreateReader())
{
result.ReadXml(reader);
}
return new StorageException(result, null, null);
}
public static RequestResult TranslateFromExceptionMessage(string message)
{
RequestResult res = new RequestResult();
using (XmlReader reader = XmlReader.Create(new StringReader(message)))
{
res.ReadXml(reader);
}
return(res);
}
public void RequestResultVerifyXml()
{
Uri baseAddressUri = new Uri(TestBase.TargetTenantConfig.BlobServiceEndpoint);
CloudBlobClient blobClient = new CloudBlobClient(baseAddressUri, TestBase.StorageCredentials);
CloudBlobContainer container = blobClient.GetContainerReference(Guid.NewGuid().ToString("N"));
RequestResult retrResult = new RequestResult();
OperationContext opContext = new OperationContext();
Assert.IsNull(opContext.LastResult);
container.Exists(null, opContext);
Assert.IsNotNull(opContext.LastResult);
// We do not have precision at milliseconds level. Hence, we need
// to recreate the start DateTime to be able to compare it later.
DateTime start = opContext.LastResult.StartTime;
start = new DateTime(start.Year, start.Month, start.Day, start.Hour, start.Minute, start.Second);
DateTime end = opContext.LastResult.EndTime;
end = new DateTime(end.Year, end.Month, end.Day, end.Hour, end.Minute, end.Second);
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
StringBuilder sb = new StringBuilder();
using (XmlWriter writer = XmlWriter.Create(sb, settings))
{
opContext.LastResult.WriteXml(writer);
}
using (XmlReader reader = XmlReader.Create(new StringReader(sb.ToString())))
{
retrResult.ReadXml(reader);
}
Assert.AreEqual(opContext.LastResult.RequestDate, retrResult.RequestDate);
Assert.AreEqual(opContext.LastResult.ServiceRequestID, retrResult.ServiceRequestID);
Assert.AreEqual(start, retrResult.StartTime);
Assert.AreEqual(end, retrResult.EndTime);
Assert.AreEqual(opContext.LastResult.HttpStatusCode, retrResult.HttpStatusCode);
Assert.AreEqual(opContext.LastResult.HttpStatusMessage, retrResult.HttpStatusMessage);
}
public static RequestResult TranslateFromExceptionMessage(string message)
{
RequestResult res = new RequestResult();
using (XmlReader reader = XmlReader.Create(new StringReader(message)))
{
res.ReadXml(reader);
}
return res;
}
private StorageException GetSimulatedStorageTransientErrorDetectionStrategy(string errorString)
{
string requestResultAsXml = String.Format("<RequestResult><HTTPStatusCode>500</HTTPStatusCode><HttpStatusMessage>fake status message</HttpStatusMessage><TargetLocation>Primary</TargetLocation><ServiceRequestID>fake requestId</ServiceRequestID><ContentMd5>fake md5</ContentMd5><Etag>fake etag</Etag><RequestDate>fake request date</RequestDate><StartTime>{1}</StartTime><EndTime>{1}</EndTime><ExtendedErrorInformation><Code>{0}</Code></ExtendedErrorInformation></RequestResult>", errorString, DateTime.UtcNow);
RequestResult requestResult = new RequestResult();
XmlTextReader reader = new XmlTextReader(new StringReader(requestResultAsXml));
requestResult.ReadXml(reader);
Exception innerException = null;
return new StorageException(requestResult, "Simulated StorageException", innerException);
}
public void RequestResultErrorCode()
{
Uri baseAddressUri = new Uri(TestBase.TargetTenantConfig.BlobServiceEndpoint);
CloudBlobClient client = new CloudBlobClient(baseAddressUri, TestBase.StorageCredentials);
CloudBlobContainer container = client.GetContainerReference(Guid.NewGuid().ToString("N"));
byte[] buffer = TestBase.GetRandomBuffer(4 * 1024 * 1024);
MD5 md5 = MD5.Create();
string contentMD5 = Convert.ToBase64String(md5.ComputeHash(buffer));
try
{
RequestResult requestResult;
XmlWriterSettings settings;
StringBuilder sb;
container.Create();
CloudBlockBlob blob = container.GetBlockBlobReference("blob1");
List <string> blocks = new List <string>();
for (int i = 0; i < 2; i++)
{
blocks.Add(Convert.ToBase64String(Guid.NewGuid().ToByteArray()));
}
// Verify the ErrorCode property is set and that it is serialized correctly
using (MemoryStream memoryStream = new MemoryStream(buffer))
{
memoryStream.Seek(0, SeekOrigin.Begin);
blob.PutBlock(blocks[0], memoryStream, contentMD5);
int offset = buffer.Length - 1024;
memoryStream.Seek(offset, SeekOrigin.Begin);
StorageException e = TestHelper.ExpectedException <StorageException>(
() => blob.PutBlock(blocks[1], memoryStream, contentMD5),
"Invalid MD5 should fail with mismatch");
Assert.AreEqual(e.RequestInformation.ErrorCode, StorageErrorCodeStrings.Md5Mismatch);
requestResult = new RequestResult();
settings = new XmlWriterSettings();
settings.Indent = true;
sb = new StringBuilder();
using (XmlWriter writer = XmlWriter.Create(sb, settings))
{
e.RequestInformation.WriteXml(writer);
}
using (XmlReader reader = XmlReader.Create(new StringReader(sb.ToString())))
{
requestResult.ReadXml(reader);
}
// ExtendedErrorInformation.ErrorCode will be depricated, but it should still match on a non HEAD request
Assert.AreEqual(e.RequestInformation.ErrorCode, requestResult.ErrorCode);
Assert.AreEqual(e.RequestInformation.ExtendedErrorInformation.ErrorCode, requestResult.ErrorCode);
}
// Verify the ErrorCode property is set on a HEAD request
CloudAppendBlob blob2 = container.GetAppendBlobReference("blob2");
blob2.CreateOrReplace();
StorageException e2 = TestHelper.ExpectedException <StorageException>(
() => blob2.FetchAttributes(AccessCondition.GenerateIfMatchCondition("garbage")),
"Mismatched etag should fail");
Assert.AreEqual(e2.RequestInformation.ErrorCode, StorageErrorCodeStrings.ConditionNotMet);
// Verify the ErrorCode property is not set on a successful request and that it is serialized correctly
OperationContext ctx = new OperationContext();
blob2.FetchAttributes(operationContext: ctx);
Assert.AreEqual(ctx.RequestResults[0].ErrorCode, null);
requestResult = new RequestResult();
settings = new XmlWriterSettings();
settings.Indent = true;
sb = new StringBuilder();
using (XmlWriter writer = XmlWriter.Create(sb, settings))
{
ctx.RequestResults[0].WriteXml(writer);
}
using (XmlReader reader = XmlReader.Create(new StringReader(sb.ToString())))
{
requestResult.ReadXml(reader);
}
Assert.AreEqual(ctx.RequestResults[0].ErrorCode, requestResult.ErrorCode);
}
finally
{
container.DeleteIfExists();
}
}
public void RequestResultVerifyXml()
{
Uri baseAddressUri = new Uri(TestBase.TargetTenantConfig.BlobServiceEndpoint);
CloudBlobClient blobClient = new CloudBlobClient(baseAddressUri, TestBase.StorageCredentials);
CloudBlobContainer container = blobClient.GetContainerReference(Guid.NewGuid().ToString("N"));
OperationContext opContext = new OperationContext();
Assert.IsNull(opContext.LastResult);
container.Exists(null, opContext);
Assert.IsNotNull(opContext.LastResult);
// We do not have precision at milliseconds level. Hence, we need
// to recreate the start DateTime to be able to compare it later.
DateTime start = opContext.LastResult.StartTime;
start = new DateTime(start.Year, start.Month, start.Day, start.Hour, start.Minute, start.Second);
DateTime end = opContext.LastResult.EndTime;
end = new DateTime(end.Year, end.Month, end.Day, end.Hour, end.Minute, end.Second);
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
StringBuilder sb = new StringBuilder();
using (XmlWriter writer = XmlWriter.Create(sb, settings))
{
opContext.LastResult.WriteXml(writer);
}
RequestResult retrResult = new RequestResult();
using (XmlReader reader = XmlReader.Create(new StringReader(sb.ToString())))
{
retrResult.ReadXml(reader);
}
Assert.AreEqual(opContext.LastResult.RequestDate, retrResult.RequestDate);
Assert.AreEqual(opContext.LastResult.ServiceRequestID, retrResult.ServiceRequestID);
Assert.AreEqual(start, retrResult.StartTime);
Assert.AreEqual(end, retrResult.EndTime);
Assert.AreEqual(opContext.LastResult.HttpStatusCode, retrResult.HttpStatusCode);
Assert.AreEqual(opContext.LastResult.HttpStatusMessage, retrResult.HttpStatusMessage);
Assert.AreEqual(opContext.LastResult.ContentMd5, retrResult.ContentMd5);
Assert.AreEqual(opContext.LastResult.Etag, retrResult.Etag);
// Now test with no indentation
sb = new StringBuilder();
using (XmlWriter writer = XmlWriter.Create(sb))
{
opContext.LastResult.WriteXml(writer);
}
retrResult = new RequestResult();
using (XmlReader reader = XmlReader.Create(new StringReader(sb.ToString())))
{
retrResult.ReadXml(reader);
}
Assert.AreEqual(opContext.LastResult.RequestDate, retrResult.RequestDate);
Assert.AreEqual(opContext.LastResult.ServiceRequestID, retrResult.ServiceRequestID);
Assert.AreEqual(start, retrResult.StartTime);
Assert.AreEqual(end, retrResult.EndTime);
Assert.AreEqual(opContext.LastResult.HttpStatusCode, retrResult.HttpStatusCode);
Assert.AreEqual(opContext.LastResult.HttpStatusMessage, retrResult.HttpStatusMessage);
Assert.AreEqual(opContext.LastResult.ContentMd5, retrResult.ContentMd5);
Assert.AreEqual(opContext.LastResult.Etag, retrResult.Etag);
}
