public override void Execute(WorkContext context)
{
if (ReduceKeys.Length == 0)
{
return;
}
var viewGenerator = context.IndexDefinitionStorage.GetViewGenerator(Index);
if (viewGenerator == null)
{
return; // deleted view?
}
context.TransactionaStorage.Batch(actions =>
{
var itemsToFind = ReduceKeys
.Select(reduceKey => new GetMappedResultsParams(Index, reduceKey, MapReduceIndex.ComputeHash(Index, reduceKey)))
.OrderBy(x => x.ViewAndReduceKeyHashed, new ByteComparer())
.ToArray();
var mappedResults = actions.MappedResults.GetMappedResults(itemsToFind)
.Select(JsonToExpando.Convert);
var sp = Stopwatch.StartNew();
log.Debug("Starting to read {0} reduce keys for index {1}", ReduceKeys.Length, Index);
var results = mappedResults.ToArray();
log.Debug("Read {0} reduce keys in {1} with {2} results for index {3}", ReduceKeys.Length, sp.Elapsed, results.Length, Index);
sp = Stopwatch.StartNew();
context.IndexStorage.Reduce(Index, viewGenerator, results, context, actions, ReduceKeys);
log.Debug("Indexed {0} reduce keys in {1} with {2} results for index {3}", ReduceKeys.Length, sp.Elapsed,
results.Length, Index);
});
}
public override bool TryMerge(Task task)
{
var reduceTask = ((ReduceTask)task);
ReduceKeys = ReduceKeys.Concat(reduceTask.ReduceKeys).Distinct().ToArray();
return(true);
}
