public ImmutableEnvelope ReadAsEnvelopeData(byte[] buffer)
{
var header = EnvelopeHeaderContract.ReadHeader(buffer);
if (header.MessageFormatVersion != EnvelopeHeaderContract.Schema2DataFormat)
{
throw new InvalidOperationException("Unexpected bytes in enveloper header");
}
EnvelopeContract envelope;
using (var stream = new MemoryStream(buffer, EnvelopeHeaderContract.FixedSize, (int)header.EnvelopeBytes))
{
envelope = _envelopeSerializer.DeserializeEnvelope(stream);
}
var items = new ImmutableMessage[envelope.Messages.Length];
for (var i = 0; i < items.Length; i++)
{
var itemContract = envelope.Messages[i];
var attributes = EnvelopeConvert.ItemAttributesFromContract(itemContract.Attributes);
Type contractType;
var itemPosition = EnvelopeHeaderContract.FixedSize + (int)header.EnvelopeBytes +
(int)itemContract.ContentPosition;
var itemSize = (int)itemContract.ContentSize;
if (_dataSerializer.TryGetContractTypeByName(itemContract.ContractName, out contractType))
{
try
{
// we can deserialize. Convert it to a message
using (var stream = new MemoryStream(buffer, itemPosition, itemSize))
{
var instance = _dataSerializer.Deserialize(stream, contractType);
items[i] = new ImmutableMessage(contractType, instance, attributes, i);
}
}
catch (Exception ex)
{
throw new InvalidOperationException("Failed to deserialize: " + itemContract.ContractName, ex);
}
}
else
{
// we can't deserialize. Keep it as buffer
var bufferInstance = new byte[itemContract.ContentSize];
Buffer.BlockCopy(buffer, itemPosition, bufferInstance, 0, itemSize);
items[i] = new ImmutableMessage(null, bufferInstance, attributes, i);
}
}
var envelopeAttributes = EnvelopeConvert.EnvelopeAttributesFromContract(envelope.EnvelopeAttributes);
return(new ImmutableEnvelope(envelope.EnvelopeId, envelopeAttributes, items, envelope.DeliverOnUtc,
envelope.CreatedOnUtc));
}
public ImmutableEnvelope(string envelopeId, ImmutableAttribute[] attributes, ImmutableMessage[] items,
DateTime deliverOnUtc, DateTime createdOnUtc)
{
EnvelopeId = envelopeId;
DeliverOnUtc = deliverOnUtc;
_attributes = attributes;
Items = items;
CreatedOnUtc = createdOnUtc;
}
public MessageBuilder AddItem(ImmutableMessage message)
{
var item = new MessageBuilder(message.MappedType, message.Content);
foreach (var attribute in message.GetAllAttributes())
{
item.AddAttribute(attribute.Key, attribute.Value);
}
Items.Add(item);
return(item);
}
public ImmutableEnvelope ReadAsEnvelopeData(byte[] buffer)
{
var header = EnvelopeHeaderContract.ReadHeader(buffer);
if (header.MessageFormatVersion != EnvelopeHeaderContract.Schema2DataFormat)
throw new InvalidOperationException("Unexpected bytes in enveloper header");
EnvelopeContract envelope;
using (var stream = new MemoryStream(buffer, EnvelopeHeaderContract.FixedSize, (int) header.EnvelopeBytes))
{
envelope = _envelopeSerializer.DeserializeEnvelope(stream);
}
var items = new ImmutableMessage[envelope.Messages.Length];
for (var i = 0; i < items.Length; i++)
{
var itemContract = envelope.Messages[i];
var attributes = EnvelopeConvert.ItemAttributesFromContract(itemContract.Attributes);
Type contractType;
var itemPosition = EnvelopeHeaderContract.FixedSize + (int) header.EnvelopeBytes +
(int) itemContract.ContentPosition;
var itemSize = (int) itemContract.ContentSize;
if (_dataSerializer.TryGetContractTypeByName(itemContract.ContractName, out contractType))
{
try
{
// we can deserialize. Convert it to a message
using (var stream = new MemoryStream(buffer, itemPosition, itemSize))
{
var instance = _dataSerializer.Deserialize(stream, contractType);
items[i] = new ImmutableMessage(contractType, instance, attributes, i);
}
}
catch (Exception ex)
{
throw new InvalidOperationException("Failed to deserialize: " + itemContract.ContractName, ex);
}
}
else
{
// we can't deserialize. Keep it as buffer
var bufferInstance = new byte[itemContract.ContentSize];
Buffer.BlockCopy(buffer, itemPosition, bufferInstance, 0, itemSize);
items[i] = new ImmutableMessage(null, bufferInstance, attributes, i);
}
}
var envelopeAttributes = EnvelopeConvert.EnvelopeAttributesFromContract(envelope.EnvelopeAttributes);
return new ImmutableEnvelope(envelope.EnvelopeId, envelopeAttributes, items, envelope.DeliverOnUtc,
envelope.CreatedOnUtc);
}
public ImmutableEnvelope Build()
{
var attributes = _attributes.Select(p => new ImmutableAttribute(p.Key, p.Value)).ToArray();
var items = new ImmutableMessage[Items.Count];
for (int i = 0; i < items.Length; i++)
{
var save = Items[i];
var attribs = save.Attributes.Select(p => new ImmutableAttribute(p.Key, p.Value)).ToArray();
items[i] = new ImmutableMessage(save.MappedType, save.Content, attribs, i);
}
return(new ImmutableEnvelope(EnvelopeId, attributes, items, _deliverOnUtc, _createdOnUtc));
}
public static Color GetBackgroundColorForContract(ImmutableMessage message)
{
var commad = message.Content as ISampleCommand;
if (commad != null)
{
return CommonColors.Green;
}
var @event = message.Content as ISampleEvent;
if (@event != null)
{
return CommonColors.Blue;
}
return CommonColors.Gray;
}
public static string GetCategoryNames(ImmutableMessage messages)
{
var item = messages.Content;
if (item is IFunctionalCommand || item is IFunctionalEvent || item is InstanceStarted)
return "system";
var @event = item as IEvent<IIdentity>;
if (@event != null)
{
return @event.Id.ToString();
}
var command = item as ICommand<IIdentity>;
if (command != null)
{
return command.Id.ToString();
}
throw new InvalidOperationException("Unknown envelope category name.");
}