private ResponseMessage HandleMessage(RequestMessage msg)
{
IndexingServiceRequest isr = (IndexingServiceRequest)msg;
LuceneQueryable backend = this;
if (isr.Source != null)
{
Queryable target = QueryDriver.GetQueryable(isr.Source);
if (target == null)
{
string err = String.Format("Unable to find backend matching '{0}'", isr.Source);
Log.Error(err);
return(new ErrorResponse(err));
}
if (!(target.IQueryable is LuceneQueryable))
{
string err = String.Format("Backend '{0}' is not an indexed backend", isr.Source);
Log.Error(err);
return(new ErrorResponse(err));
}
backend = (LuceneQueryable)target.IQueryable;
Log.Debug("Found backend for IndexingServiceRequest: {0}", backend.IndexName);
}
// FIXME: There should be a way for the request to control the
// scheduler priority of the task.
if (isr.ToAdd.Count > 0 || isr.ToRemove.Count > 0)
{
Log.Debug("IndexingService: Adding {0} indexables, removing {1} indexables.", isr.ToAdd.Count, isr.ToRemove.Count);
IndexableGenerator ind_gen;
ind_gen = new IndexableGenerator(isr.ToAdd, isr.ToRemove, this);
Scheduler.Task task = backend.NewAddTask(ind_gen);
task.Priority = Scheduler.Priority.Immediate;
ThisScheduler.Add(task);
}
// FIXME: There should be an asynchronous response (fired by a Scheduler.Hook)
// that fires when all of the items have been added to the index.
// No response
return(new EmptyResponse());
}
public void Add(Indexable indexable, Scheduler.Priority priority)
{
lock (indexables) {
indexables.Enqueue(indexable);
if (priority > highest_prio)
{
highest_prio = priority;
}
if (self_task == null)
{
self_task = queryable.NewAddTask(this);
self_task.Priority = highest_prio;
queryable.ThisScheduler.Add(self_task);
}
else
{
self_task.Priority = highest_prio;
}
}
}