/// <summary>
/// Serializes and assigns a <see cref="MessageRetryData"/> instance to the Extension
/// property of a <see cref="Message"/>.
/// </summary>
/// <param name="message">The object on which the Extension property will be set.</param>
/// <param name="messageRetryData">The object that will be serialized and written to the Extension property.</param>
/// <returns>The <see cref="SerializedMessage"/> instance after the <see cref="MessageRetryData"/> instance has been serialized and assigned to its Extension property.</returns>
public static Message SetRetryData(this Message message, MessageRetryData messageRetryData)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
if (messageRetryData == null)
{
throw new ArgumentNullException("messageRetryData");
}
message.Extension = ConvertToBytes(messageRetryData);
return(message);
}
private static byte[] ConvertToBytes(MessageRetryData messageRetryData)
{
byte[] bytes;
using (var memoryStream = new MemoryStream())
{
var serializer = new DataContractSerializer(typeof(MessageRetryData));
serializer.WriteObject(memoryStream, messageRetryData);
bytes = memoryStream.ToArray();
}
return(bytes);
}
private static MessageRetryData ConvertToObject(byte[] bytes)
{
MessageRetryData messageRetryData = null;
using (var memoryStream = new MemoryStream(bytes))
{
var serializer = new DataContractSerializer(typeof(MessageRetryData));
if (memoryStream.Length != 0)
{
messageRetryData = serializer.ReadObject(memoryStream) as MessageRetryData;
}
}
return(messageRetryData);
}
/// <summary>
/// Determines whether this instance can process the specified message.
/// </summary>
/// <param name="message">The message.</param>
/// <returns>
/// <c>true</c> if this instance can the specified message; otherwise, <c>false</c>.
/// </returns>
public bool CanProcessMessage(SerializableMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
try
{
object body = message.GetBody();
if (body == null)
{
return(false);
}
if (!this._handledTypes.Contains(body.GetType()))
{
return(false);
}
MessageRetryData messageRetryData = message.GetRetryData();
if (messageRetryData.Attempts == 1)
{
return(true);
}
if (messageRetryData.RetrySourceTypeName != this.GetType().FullName)
{
return(false);
}
return(true);
}
catch (Exception exception)
{
return(false);
}
}
/// <summary>
/// Serializes and assigns a <see cref="MessageRetryData"/> instance to the Extension
/// property of a <see cref="SerializableMessage"/>.
/// </summary>
/// <param name="serializableMessage">The object on which the Extension property will be set.</param>
/// <param name="messageRetryData">The object that will be serialized and written to the Extension property.</param>
/// <returns>The <see cref="SerializedMessage"/> instance after the <see cref="MessageRetryData"/> instance has been serialized and assigned to its Extension property.</returns>
public static SerializableMessage SetRetryData(this SerializableMessage serializableMessage, MessageRetryData messageRetryData)
{
if (serializableMessage == null)
{
throw new ArgumentNullException("serializableMessage");
}
if (messageRetryData == null)
{
throw new ArgumentNullException("messageRetryData");
}
serializableMessage.Extension = ConvertToBytes(messageRetryData);
return(serializableMessage);
}
