/// <inheritdoc />
public void Add(ITaskRuntimeInfo taskInfo)
{
if (taskInfo == null)
{
throw new ArgumentNullException("taskInfo");
}
Trace.WriteLine("ENTER: Adding runtime information for task '{0}' of type '{1}' with priority '{2}' in polling queue '{3}' ...".FormatInvariant(taskInfo.TaskId, taskInfo.TaskType, taskInfo.Priority, taskInfo.PollingQueue));
taskInfo.ValidateForAdd();
string entityKey = RedisTaskRuntimeInfoRepository.GetEntityKey(taskInfo.TaskId);
string addToListKey;
Dictionary <string, string> values = new Dictionary <string, string>()
{
{ "Id", RedisConverter.ToString(taskInfo.TaskId) },
{ "TaskType", RedisConverter.ToString(taskInfo.TaskType, true) },
{ "SubmittedUtc", RedisConverter.ToString(taskInfo.SubmittedUtc) },
{ "Status", RedisConverter.ToString(taskInfo.Status) }
};
if (string.IsNullOrEmpty(taskInfo.PollingQueue))
{
values.Add("Priority", RedisConverter.ToString(taskInfo.Priority));
addToListKey = RedisTaskRuntimeInfoRepository.PendingTasksList;
}
else
{
values.Add("PollingQueue", taskInfo.PollingQueue);
addToListKey = RedisTaskRuntimeInfoRepository.GetPollingQueueRedisKey(taskInfo.PollingQueue, TaskStatus.Pending);
}
using (IRedisTransaction transaction = this.Provider.CreateTransaction())
{
transaction.SetHashValues(entityKey, values);
transaction.AddToList(addToListKey, RedisConverter.ToString(taskInfo.TaskId));
transaction.Commit();
}
Trace.WriteLine("EXIT: Runtime information for task '{0}' of type '{1}' with priority '{2}' in polling queue '{3}' added.".FormatInvariant(taskInfo.TaskId, taskInfo.TaskType, taskInfo.Priority, taskInfo.PollingQueue));
}
/// <inheritdoc />
public IEnumerable <ITaskRuntimeInfo> ReservePollingQueueTasks(string pollingQueueKey, int maxResults)
{
Trace.WriteLine("ENTER: Reserving {0} polling queue '{1}' tasks for execution ...".FormatInvariant(maxResults, pollingQueueKey));
if (string.IsNullOrEmpty(pollingQueueKey))
{
throw new ArgumentNullException(nameof(pollingQueueKey));
}
if (maxResults < 0)
{
throw new ArgumentOutOfRangeException(nameof(maxResults), maxResults, "Value must not be negative.");
}
string pollingQueueListKey = RedisTaskRuntimeInfoRepository.GetPollingQueueRedisKey(pollingQueueKey, TaskStatus.Pending);
List <string> entityIds = new List <string>();
using (IRedisPipeline pipeline = this.provider.CreatePipeline())
{
for (int i = 0; i < maxResults; i++)
{
pipeline.PopFirstListElementAsText(pollingQueueListKey, value =>
{
if (!string.IsNullOrEmpty(value))
{
entityIds.Add(value);
}
});
}
pipeline.Flush();
}
ICollection <ITaskRuntimeInfo> result = this.GetAll(entityIds);
Trace.WriteLine("EXIT: {0} polling queue '{1}' tasks reserved for execution.".FormatInvariant(result.Count, pollingQueueKey));
return(result);
}
