/// <summary>
/// Attempts to add a message to the batch, ensuring that the size
/// of the batch does not exceed its maximum.
/// </summary>
///
/// <param name="message">The message to attempt to add to the batch.</param>
///
/// <returns><c>true</c> if the message was added; otherwise, <c>false</c>.</returns>
///
public override bool TryAdd(ServiceBusMessage message)
{
Argument.AssertNotNull(message, nameof(message));
Argument.AssertNotDisposed(_disposed, nameof(ServiceBusMessageBatch));
AmqpMessage amqpMessage = AmqpMessageConverter.SBMessageToAmqpMessage(message);
try
{
// Calculate the size for the message, based on the AMQP message size and accounting for a
// bit of reserved overhead size.
var size = _sizeBytes
+ amqpMessage.SerializedMessageSize
+ (amqpMessage.SerializedMessageSize <= MaximumBytesSmallMessage
? OverheadBytesSmallMessage
: OverheadBytesLargeMessage);
if (size > MaxSizeInBytes)
{
return(false);
}
_sizeBytes = size;
BatchMessages.Add(message);
return(true);
}
finally
{
amqpMessage?.Dispose();
}
}
/// <summary>
/// Sends a message to the associated Service Bus entity.
/// </summary>
///
/// <param name="message">A message to send.</param>
/// <param name="cancellationToken">An optional <see cref="CancellationToken"/> instance to signal the request to cancel the operation.</param>
///
public override async Task SendAsync(
ServiceBusMessage message,
CancellationToken cancellationToken)
{
Argument.AssertNotNull(message, nameof(message));
Argument.AssertNotClosed(_closed, nameof(AmqpSender));
AmqpMessage messageFactory() => AmqpMessageConverter.SBMessageToAmqpMessage(message);
await _retryPolicy.RunOperation(async (timeout) =>
await SendBatchInternalAsync(
messageFactory,
timeout,
cancellationToken).ConfigureAwait(false),
_connectionScope,
cancellationToken).ConfigureAwait(false);
}
/// <summary>
/// Attempts to add a message to the batch, ensuring that the size
/// of the batch does not exceed its maximum.
/// </summary>
///
/// <param name="message">The message to attempt to add to the batch.</param>
///
/// <returns><c>true</c> if the message was added; otherwise, <c>false</c>.</returns>
///
public override bool TryAddMessage(ServiceBusMessage message)
{
Argument.AssertNotNull(message, nameof(message));
Argument.AssertNotDisposed(_disposed, nameof(ServiceBusMessageBatch));
AmqpMessage amqpMessage = null;
try
{
if (BatchMessages.Count == 0)
{
// Initialize the size by reserving space for the batch envelope taking into account the properties from the first
// message which will be used to populate properties on the batch envelope.
amqpMessage = AmqpMessageConverter.BatchSBMessagesAsAmqpMessage(message, forceBatch: true);
}
else
{
amqpMessage = AmqpMessageConverter.SBMessageToAmqpMessage(message);
}
// Calculate the size for the message, based on the AMQP message size and accounting for a
// bit of reserved overhead size.
var size = _sizeBytes
+ amqpMessage.SerializedMessageSize
+ (amqpMessage.SerializedMessageSize <= MaximumBytesSmallMessage
? OverheadBytesSmallMessage
: OverheadBytesLargeMessage);
if (size > MaxSizeInBytes)
{
return(false);
}
_sizeBytes = size;
BatchMessages.Add(message);
return(true);
}
finally
{
amqpMessage?.Dispose();
}
}
/// <summary>
/// Sends a message to the associated Service Bus entity.
/// </summary>
///
/// <param name="message"></param>
/// <param name="timeout"></param>
/// <param name="cancellationToken">An optional <see cref="CancellationToken"/> instance to signal the request to cancel the operation.</param>
///
internal virtual async Task SendInternalAsync(
ServiceBusMessage message,
TimeSpan timeout,
CancellationToken cancellationToken)
{
var stopWatch = Stopwatch.StartNew();
using (AmqpMessage amqpMessage = AmqpMessageConverter.SBMessageToAmqpMessage(message))
{
//ServiceBusEventSource.Log.SendStart(Entityname, messageHash);
string messageHash = amqpMessage.GetHashCode().ToString();
SendingAmqpLink link = await _sendLink.GetOrCreateAsync(UseMinimum(_connectionScope.SessionTimeout, timeout)).ConfigureAwait(false);
// Validate that the message is not too large to send. This is done after the link is created to ensure
// that the maximum message size is known, as it is dictated by the service using the link.
if (amqpMessage.SerializedMessageSize > MaximumMessageSize)
{
throw new ServiceBusException(string.Format(Resources1.MessageSizeExceeded, messageHash, amqpMessage.SerializedMessageSize, MaximumMessageSize), ServiceBusException.FailureReason.MessageSizeExceeded, _entityName);
}
// Attempt to send the message batch.
var deliveryTag = new ArraySegment <byte>(BitConverter.GetBytes(Interlocked.Increment(ref _deliveryCount)));
var outcome = await link.SendMessageAsync(amqpMessage, deliveryTag, AmqpConstants.NullBinary, timeout.CalculateRemaining(stopWatch.Elapsed)).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested <TaskCanceledException>();
if (outcome.DescriptorCode != Accepted.Code)
{
throw AmqpError.CreateExceptionForError((outcome as Rejected)?.Error, _entityName);
}
//ServiceBusEventSource.Log.SendStop(Entityname, messageHash);
cancellationToken.ThrowIfCancellationRequested <TaskCanceledException>();
stopWatch.Stop();
}
}
/// <summary>
///
/// </summary>
/// <param name="message"></param>
/// <param name="timeout"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
internal async Task <long> ScheduleMessageInternalAsync(
ServiceBusMessage message,
TimeSpan timeout,
CancellationToken cancellationToken = default)
{
var stopWatch = Stopwatch.StartNew();
using (AmqpMessage amqpMessage = AmqpMessageConverter.SBMessageToAmqpMessage(message))
{
var request = AmqpRequestMessage.CreateRequest(
ManagementConstants.Operations.ScheduleMessageOperation,
timeout,
null);
if (_sendLink.TryGetOpenedObject(out SendingAmqpLink sendLink))
{
request.AmqpMessage.ApplicationProperties.Map[ManagementConstants.Request.AssociatedLinkName] = sendLink.Name;
}
ArraySegment <byte>[] payload = amqpMessage.GetPayload();
var buffer = new BufferListStream(payload);
ArraySegment <byte> value = buffer.ReadBytes((int)buffer.Length);
var entry = new AmqpMap();
{
entry[ManagementConstants.Properties.Message] = value;
entry[ManagementConstants.Properties.MessageId] = message.MessageId;
if (!string.IsNullOrWhiteSpace(message.SessionId))
{
entry[ManagementConstants.Properties.SessionId] = message.SessionId;
}
if (!string.IsNullOrWhiteSpace(message.PartitionKey))
{
entry[ManagementConstants.Properties.PartitionKey] = message.PartitionKey;
}
if (!string.IsNullOrWhiteSpace(message.ViaPartitionKey))
{
entry[ManagementConstants.Properties.ViaPartitionKey] = message.ViaPartitionKey;
}
}
request.Map[ManagementConstants.Properties.Messages] = new List <AmqpMap> {
entry
};
RequestResponseAmqpLink mgmtLink = await _managementLink.GetOrCreateAsync(
UseMinimum(_connectionScope.SessionTimeout,
timeout.CalculateRemaining(stopWatch.Elapsed)))
.ConfigureAwait(false);
using AmqpMessage response = await mgmtLink.RequestAsync(
request.AmqpMessage,
timeout.CalculateRemaining(stopWatch.Elapsed))
.ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested <TaskCanceledException>();
stopWatch.Stop();
AmqpResponseMessage amqpResponseMessage = AmqpResponseMessage.CreateResponse(response);
if (amqpResponseMessage.StatusCode == AmqpResponseStatusCode.OK)
{
var sequenceNumbers = amqpResponseMessage.GetValue <long[]>(ManagementConstants.Properties.SequenceNumbers);
if (sequenceNumbers == null || sequenceNumbers.Length < 1)
{
throw new ServiceBusException(true, "Could not schedule message successfully.");
}
return(sequenceNumbers[0]);
}
else
{
throw amqpResponseMessage.ToMessagingContractException();
}
}
}
/// <summary>
///
/// </summary>
/// <param name="message"></param>
/// <param name="timeout"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
internal async Task <long> ScheduleMessageInternalAsync(
ServiceBusMessage message,
TimeSpan timeout,
CancellationToken cancellationToken = default)
{
var sendLink = default(SendingAmqpLink);
try
{
using (AmqpMessage amqpMessage = AmqpMessageConverter.SBMessageToAmqpMessage(message))
{
var request = AmqpRequestMessage.CreateRequest(
ManagementConstants.Operations.ScheduleMessageOperation,
timeout,
null);
if (_sendLink.TryGetOpenedObject(out sendLink))
{
request.AmqpMessage.ApplicationProperties.Map[ManagementConstants.Request.AssociatedLinkName] = sendLink.Name;
}
ArraySegment <byte>[] payload = amqpMessage.GetPayload();
var buffer = new BufferListStream(payload);
ArraySegment <byte> value = buffer.ReadBytes((int)buffer.Length);
var entry = new AmqpMap();
{
entry[ManagementConstants.Properties.Message] = value;
entry[ManagementConstants.Properties.MessageId] = message.MessageId;
if (!string.IsNullOrWhiteSpace(message.SessionId))
{
entry[ManagementConstants.Properties.SessionId] = message.SessionId;
}
if (!string.IsNullOrWhiteSpace(message.PartitionKey))
{
entry[ManagementConstants.Properties.PartitionKey] = message.PartitionKey;
}
if (!string.IsNullOrWhiteSpace(message.ViaPartitionKey))
{
entry[ManagementConstants.Properties.ViaPartitionKey] = message.ViaPartitionKey;
}
}
request.Map[ManagementConstants.Properties.Messages] = new List <AmqpMap> {
entry
};
AmqpResponseMessage amqpResponseMessage = await ManagementUtilities.ExecuteRequestResponseAsync(
_connectionScope,
_managementLink,
request,
timeout).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested <TaskCanceledException>();
if (amqpResponseMessage.StatusCode == AmqpResponseStatusCode.OK)
{
var sequenceNumbers = amqpResponseMessage.GetValue <long[]>(ManagementConstants.Properties.SequenceNumbers);
if (sequenceNumbers == null || sequenceNumbers.Length < 1)
{
throw new ServiceBusException(true, "Could not schedule message successfully.");
}
return(sequenceNumbers[0]);
}
else
{
throw amqpResponseMessage.ToMessagingContractException();
}
}
}
catch (Exception exception)
{
ExceptionDispatchInfo.Capture(AmqpExceptionHelper.TranslateException(
exception,
sendLink?.GetTrackingId(),
null,
HasLinkCommunicationError(sendLink)))
.Throw();
throw; // will never be reached
}
}
/// <summary>
///
/// </summary>
/// <param name="message"></param>
/// <param name="retryPolicy"></param>
/// <param name="receiveLinkName"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public override async Task <long> ScheduleMessageAsync(
ServiceBusMessage message,
ServiceBusRetryPolicy retryPolicy,
string receiveLinkName = null,
CancellationToken cancellationToken = default)
{
var failedAttemptCount = 0;
var stopWatch = Stopwatch.StartNew();
try
{
TimeSpan tryTimeout = retryPolicy.CalculateTryTimeout(0);
while (!cancellationToken.IsCancellationRequested)
{
try
{
using (AmqpMessage amqpMessage = AmqpMessageConverter.SBMessageToAmqpMessage(message))
{
var request = AmqpRequestMessage.CreateRequest(
ManagementConstants.Operations.ScheduleMessageOperation,
tryTimeout,
null);
if (receiveLinkName != null)
{
request.AmqpMessage.ApplicationProperties.Map[ManagementConstants.Request.AssociatedLinkName] = receiveLinkName;
}
ArraySegment <byte>[] payload = amqpMessage.GetPayload();
var buffer = new BufferListStream(payload);
ArraySegment <byte> value = buffer.ReadBytes((int)buffer.Length);
var entry = new AmqpMap();
{
entry[ManagementConstants.Properties.Message] = value;
entry[ManagementConstants.Properties.MessageId] = message.MessageId;
if (!string.IsNullOrWhiteSpace(message.SessionId))
{
entry[ManagementConstants.Properties.SessionId] = message.SessionId;
}
if (!string.IsNullOrWhiteSpace(message.PartitionKey))
{
entry[ManagementConstants.Properties.PartitionKey] = message.PartitionKey;
}
if (!string.IsNullOrWhiteSpace(message.ViaPartitionKey))
{
entry[ManagementConstants.Properties.ViaPartitionKey] = message.ViaPartitionKey;
}
}
request.Map[ManagementConstants.Properties.Messages] = new List <AmqpMap> {
entry
};
RequestResponseAmqpLink link = await ManagementLink.GetOrCreateAsync(
UseMinimum(ConnectionScope.SessionTimeout,
tryTimeout.CalculateRemaining(stopWatch.Elapsed)))
.ConfigureAwait(false);
using AmqpMessage response = await link.RequestAsync(
request.AmqpMessage,
tryTimeout.CalculateRemaining(stopWatch.Elapsed))
.ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested <TaskCanceledException>();
stopWatch.Stop();
AmqpResponseMessage amqpResponseMessage = AmqpResponseMessage.CreateResponse(response);
if (amqpResponseMessage.StatusCode == AmqpResponseStatusCode.OK)
{
var sequenceNumbers = amqpResponseMessage.GetValue <long[]>(ManagementConstants.Properties.SequenceNumbers);
if (sequenceNumbers == null || sequenceNumbers.Length < 1)
{
throw new ServiceBusException(true, "Could not schedule message successfully.");
}
return(sequenceNumbers[0]);
}
else
{
throw new Exception();
//throw response.ToMessagingContractException();
}
}
}
catch (Exception ex)
{
// Determine if there should be a retry for the next attempt; if so enforce the delay but do not quit the loop.
// Otherwise, mark the exception as active and break out of the loop.
++failedAttemptCount;
TimeSpan?retryDelay = retryPolicy.CalculateRetryDelay(ex, failedAttemptCount);
if (retryDelay.HasValue && !ConnectionScope.IsDisposed && !cancellationToken.IsCancellationRequested)
{
ServiceBusEventSource.Log.ScheduleMessageError(EntityName, ex.Message);
await Task.Delay(retryDelay.Value, cancellationToken).ConfigureAwait(false);
tryTimeout = retryPolicy.CalculateTryTimeout(failedAttemptCount);
stopWatch.Reset();
}
}
}
// If no value has been returned nor exception thrown by this point,
// then cancellation has been requested.
throw new TaskCanceledException();
}
catch (Exception ex)
{
ServiceBusEventSource.Log.ScheduleMessageError(EntityName, ex.Message);
throw;
}
finally
{
stopWatch.Stop();
ServiceBusEventSource.Log.ScheduleMessageComplete(EntityName);
}
}
public static AmqpMessage BatchSBMessagesAsAmqpMessage(IEnumerable <SBMessage> sbMessages)
{
if (sbMessages == null)
{
throw Fx.Exception.ArgumentNull(nameof(sbMessages));
}
AmqpMessage amqpMessage;
AmqpMessage firstAmqpMessage = null;
SBMessage firstMessage = null;
List <Data> dataList = null;
var messageCount = 0;
foreach (var sbMessage in sbMessages)
{
messageCount++;
amqpMessage = AmqpMessageConverter.SBMessageToAmqpMessage(sbMessage);
if (firstAmqpMessage == null)
{
firstAmqpMessage = amqpMessage;
firstMessage = sbMessage;
continue;
}
if (dataList == null)
{
dataList = new List <Data> {
ToData(firstAmqpMessage)
};
}
dataList.Add(ToData(amqpMessage));
}
if (messageCount == 1 && firstAmqpMessage != null)
{
firstAmqpMessage.Batchable = true;
return(firstAmqpMessage);
}
amqpMessage = AmqpMessage.Create(dataList);
amqpMessage.MessageFormat = AmqpConstants.AmqpBatchedMessageFormat;
if (firstMessage.MessageId != null)
{
amqpMessage.Properties.MessageId = firstMessage.MessageId;
}
if (firstMessage.SessionId != null)
{
amqpMessage.Properties.GroupId = firstMessage.SessionId;
}
if (firstMessage.PartitionKey != null)
{
amqpMessage.MessageAnnotations.Map[AmqpMessageConverter.PartitionKeyName] =
firstMessage.PartitionKey;
}
if (firstMessage.ViaPartitionKey != null)
{
amqpMessage.MessageAnnotations.Map[AmqpMessageConverter.ViaPartitionKeyName] =
firstMessage.ViaPartitionKey;
}
amqpMessage.Batchable = true;
return(amqpMessage);
}
