/// <summary>
/// Gets messages from the queue.
/// </summary>
/// <param name="numberOfMessages">Number of messages to retrieve from the queue</param>
/// <param name="visibilityTimeoutInSeconds">
/// Timeot while messages are invisible for other GetMessages requests</param>
/// <returns>The collection of messages obtained from the queue.</returns>
public IEnumerable <IPoppedMessage> GetMessages(int numberOfMessages, int visibilityTimeoutInSeconds)
{
CheckIfDeleted();
lock (_locker)
{
var now = EnvironmentInfo.GetCurrentDateTimeUtc();
var result = (from m in _messages
where m.NextVisibleTime <now && m.ExpirationTime> now
orderby m.InsertionTime descending
select m).Take(numberOfMessages).ToList();
var copyResult = new List <MemoryPoppedMessage>();
foreach (var message in result)
{
message.DequeueCount++;
message.PopReceipt = Guid.NewGuid().ToString();
message.NextVisibleTime = now.AddSeconds(visibilityTimeoutInSeconds);
var copyAdd = new MemoryPoppedMessage
{
DequeueCount = message.DequeueCount,
ExpirationTime = message.ExpirationTime,
Id = message.Id,
InsertionTime = message.InsertionTime,
MessageText = message.MessageText,
PopReceipt = message.PopReceipt,
NextVisibleTime = message.NextVisibleTime
};
copyResult.Add(copyAdd);
}
return(copyResult);
}
}
/// <summary>
/// Gets messages from the queue.
/// </summary>
/// <param name="numberOfMessages">Number of messages to retrieve from the queue</param>
/// <param name="visibilityTimeoutInSeconds">
/// Timeot while messages are invisible for other GetMessages requests</param>
/// <returns>The collection of messages obtained from the queue.</returns>
public IEnumerable<IPoppedMessage> GetMessages(int numberOfMessages, int visibilityTimeoutInSeconds)
{
CheckIfDeleted();
lock (_locker)
{
var now = EnvironmentInfo.GetCurrentDateTimeUtc();
var result = (from m in _messages
where m.NextVisibleTime < now && m.ExpirationTime > now
orderby m.InsertionTime descending
select m).Take(numberOfMessages).ToList();
var copyResult = new List<MemoryPoppedMessage>();
foreach (var message in result)
{
message.DequeueCount++;
message.PopReceipt = Guid.NewGuid().ToString();
message.NextVisibleTime = now.AddSeconds(visibilityTimeoutInSeconds);
var copyAdd = new MemoryPoppedMessage
{
DequeueCount = message.DequeueCount,
ExpirationTime = message.ExpirationTime,
Id = message.Id,
InsertionTime = message.InsertionTime,
MessageText = message.MessageText,
PopReceipt = message.PopReceipt,
NextVisibleTime = message.NextVisibleTime
};
copyResult.Add(copyAdd);
}
return copyResult;
}
}