public void Create_Default(string number)
{
var id = new RedisQueueId(number);
var test = new DeleteMessageCommand(id);
Assert.Equal(id, test.Id);
}
public void Create_Default_ToString()
{
const long id = 1;
var test = new RedisQueueId(id.ToString());
Assert.Equal("1", test.ToString());
}
public void Create_Default(string number)
{
var id = new RedisQueueId(number);
var test = new SendHeartBeatCommand(id);
Assert.Equal(id, test.QueueId);
}
public void Create_Default(string number)
{
var id = new RedisQueueId(number);
var test = new MoveRecordToErrorQueueCommand(id);
Assert.Equal(id, test.QueueId);
}
/// <summary>
/// Initializes a new instance of the <see cref="SaveMetaDataCommand" /> class.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="metaData">The meta data.</param>
public SaveMetaDataCommand(RedisQueueId id, RedisMetaData metaData)
{
Guard.NotNull(() => id, id);
Guard.NotNull(() => metaData, metaData);
Id = id;
MetaData = metaData;
}
/// <summary>
/// Initializes a new instance of the <see cref="SaveMetaDataCommand" /> class.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="metaData">The meta data.</param>
public SaveMetaDataCommand(RedisQueueId id, RedisMetaData metaData)
{
Guard.NotNull(() => id, id);
Guard.NotNull(() => metaData, metaData);
Id = id;
MetaData = metaData;
}
public void Create_Default(string number)
{
var id = new RedisQueueId(number);
var test = new GetMetaDataQuery(id);
Assert.Equal(id, test.Id);
}
public void Create_Default()
{
const long id = 1;
var test = new RedisQueueId(id.ToString());
Assert.Equal(id.ToString(), test.Id.Value);
Assert.True(test.HasValue);
}
public void Create_Default_Empty()
{
var id = string.Empty;
var test = new RedisQueueId(id);
Assert.Equal(id, test.Id.Value);
Assert.False(test.HasValue);
}
public void Create_Default(string number, int metaNumber)
{
var id = new RedisQueueId(number);
var meta = new RedisMetaData(metaNumber);
var test = new SaveMetaDataCommand(id, meta);
Assert.Equal(id, test.Id);
Assert.Equal(meta, test.MetaData);
}
public void Create_Default(string number)
{
var id = new RedisQueueId(number);
var test = new RollbackMessageCommand(id, null);
Assert.Equal(id, test.Id);
Assert.Null(test.IncreaseQueueDelay);
TimeSpan?time = TimeSpan.MinValue;
test = new RollbackMessageCommand(id, time);
Assert.Equal(id, test.Id);
Assert.Equal(time, test.IncreaseQueueDelay);
}
/// <summary>
/// Initializes a new instance of the <see cref="MoveRecordToErrorQueueCommand" /> class.
/// </summary>
/// <param name="queueId">The queue identifier.</param>
public MoveRecordToErrorQueueCommand(RedisQueueId queueId)
{
Guard.NotNull(() => queueId, queueId);
QueueId = queueId;
}
/// <summary>
/// Initializes a new instance of the <see cref="SendHeartBeatCommand"/> class.
/// </summary>
/// <param name="queueId">The queue identifier.</param>
public SendHeartBeatCommand(RedisQueueId queueId)
{
Guard.NotNull(() => queueId, queueId);
QueueId = queueId;
}
/// <summary>
/// Initializes a new instance of the <see cref="DeleteMessageCommand" /> class.
/// </summary>
/// <param name="id">The identifier.</param>
public DeleteMessageCommand(RedisQueueId id)
{
Guard.NotNull(() => id, id);
Id = id;
}
/// <summary>
/// Initializes a new instance of the <see cref="DeleteMessageCommand" /> class.
/// </summary>
/// <param name="id">The identifier.</param>
public DeleteMessageCommand(RedisQueueId id)
{
Guard.NotNull(() => id, id);
Id = id;
}
/// <summary>
/// Initializes a new instance of the <see cref="GetMetaDataQuery"/> class.
/// </summary>
/// <param name="id">The identifier.</param>
public GetMetaDataQuery(RedisQueueId id)
{
Guard.NotNull(() => id, id);
Id = id;
}
/// <summary>
/// Initializes a new instance of the <see cref="RollbackMessageCommand" /> class.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="increaseQueueDelay">The increase queue delay.</param>
public RollbackMessageCommand(RedisQueueId id, TimeSpan?increaseQueueDelay)
{
Guard.NotNull(() => id, id);
Id = id;
IncreaseQueueDelay = increaseQueueDelay;
}
/// <summary>
/// Initializes a new instance of the <see cref="SendHeartBeatCommand"/> class.
/// </summary>
/// <param name="queueId">The queue identifier.</param>
public SendHeartBeatCommand(RedisQueueId queueId)
{
Guard.NotNull(() => queueId, queueId);
QueueId = queueId;
}
/// <summary>
/// Initializes a new instance of the <see cref="GetHeaderQuery"/> class.
/// </summary>
/// <param name="id">The identifier.</param>
public GetHeaderQuery(RedisQueueId id)
{
Id = id;
}
/// <summary>
/// Initializes a new instance of the <see cref="MoveRecordToErrorQueueCommand" /> class.
/// </summary>
/// <param name="queueId">The queue identifier.</param>
public MoveRecordToErrorQueueCommand(RedisQueueId queueId)
{
Guard.NotNull(() => queueId, queueId);
QueueId = queueId;
}
/// <inheritdoc />
public RedisMessage Handle(ReceiveMessageQuery query)
{
byte[] message = null;
byte[] headers = null;
string messageId;
var poisonMessage = false;
RedisQueueCorrelationIdSerialized correlationId = null;
try
{
var unixTimestamp = _unixTimeFactory.Create().GetCurrentUnixTimestampMilliseconds();
RedisValue[] result;
if (query.MessageId != null && query.MessageId.HasValue)
{
result = _dequeueRpcLua.Execute(query.MessageId.Id.Value.ToString(), unixTimestamp);
}
else
{
result = _dequeueLua.Execute(unixTimestamp);
}
if (result == null || result.Length == 1 && !result[0].HasValue || !result[0].HasValue)
{
return(null);
}
if (!result[1].HasValue)
{
//at this point, the record has been de-queued, but it can't be processed.
poisonMessage = true;
}
messageId = result[0];
var id = new RedisQueueId(messageId);
query.MessageContext.MessageId = id;
if (!poisonMessage)
{
message = result[1];
headers = result[2];
if (result[3].HasValue)
{
if (result[3].TryParse(out long messageExpiration))
{
if (messageExpiration - unixTimestamp < 0)
{
//message has expired
_deleteMessage.Handle(new DeleteMessageCommand(new RedisQueueId(messageId)));
return(new RedisMessage(messageId, null, true));
}
}
}
}
}
catch (Exception error)
{
throw new ReceiveMessageException("Failed to dequeue a message", error);
}
if (poisonMessage)
{
//at this point, the record has been de-queued, but it can't be processed.
throw new PoisonMessageException(
"An error has occurred trying to re-assemble a message de-queued from Redis; a messageId was returned, but the LUA script returned a null message. The message payload has most likely been lost.", null,
new RedisQueueId(messageId), new RedisQueueCorrelationId(Guid.Empty),
null, null);
}
try
{
var allHeaders = _serializer.InternalSerializer.ConvertBytesTo <IDictionary <string, object> > (headers);
correlationId = (RedisQueueCorrelationIdSerialized)allHeaders[_redisHeaders.CorrelationId.Name];
var messageGraph = (MessageInterceptorsGraph)allHeaders[_redisHeaders.Headers.StandardHeaders.MessageInterceptorGraph.Name];
var messageData = _serializer.Serializer.BytesToMessage <MessageBody>(message, messageGraph);
var newMessage = _messageFactory.Create(messageData.Body, allHeaders);
return(new RedisMessage(
messageId,
_receivedMessageFactory.Create(
newMessage,
new RedisQueueId(messageId),
new RedisQueueCorrelationId(correlationId.Id)), false));
}
catch (Exception error)
{
//at this point, the record has been de-queued, but it can't be processed.
throw new PoisonMessageException(
"An error has occurred trying to re-assemble a message de-queued from redis", error,
new RedisQueueId(messageId), new RedisQueueCorrelationId(correlationId),
message, headers);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="RollbackMessageCommand" /> class.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="increaseQueueDelay">The increase queue delay.</param>
public RollbackMessageCommand(RedisQueueId id, TimeSpan? increaseQueueDelay)
{
Guard.NotNull(() => id, id);
Id = id;
IncreaseQueueDelay = increaseQueueDelay;
}