// This is mostly a copy of LuceneQueryable.Flush + FSQ.PostAddHooks/PostRemoveHook
static bool FlushIndexer(IIndexer indexer)
{
IndexerRequest flushed_request;
if (pending_request.IsEmpty)
{
return(false);
}
flushed_request = pending_request;
pending_request = new IndexerRequest();
IndexerReceipt [] receipts;
receipts = indexer.Flush(flushed_request);
// Flush will return null if it encounters a shutdown during flushing
if (receipts == null)
{
return(false);
}
fa_store.BeginTransaction();
bool indexer_indexable_receipt = false;
foreach (IndexerReceipt raw_r in receipts)
{
if (raw_r is IndexerAddedReceipt)
{
// Update the file attributes
IndexerAddedReceipt r = (IndexerAddedReceipt)raw_r;
Indexable indexable = flushed_request.RetrieveRequestIndexable(r);
if (indexable == null)
{
Logger.Log.Debug("Should not happen! Previously requested indexable with id #{0} has eloped!", r.Id);
continue;
}
// We don't need to write out any file attributes for
// children.
if (indexable.ParentUri != null)
{
continue;
}
string path = indexable.Uri.LocalPath;
FileAttributes attr;
attr = fa_store.ReadOrCreate(path);
attr.LastWriteTime = indexable.Timestamp;
attr.FilterName = r.FilterName;
attr.FilterVersion = r.FilterVersion;
fa_store.Write(attr);
}
else if (raw_r is IndexerRemovedReceipt)
{
// Update the file attributes
IndexerRemovedReceipt r = (IndexerRemovedReceipt)raw_r;
Indexable indexable = flushed_request.RetrieveRequestIndexable(r);
if (indexable == null) // Should never happen
{
Log.Warn("Unable to match indexable-remove #{0} to any request!", r.Id);
continue;
}
string path = indexable.Uri.LocalPath;
Logger.Log.Debug("Removing: '{0}'", path);
fa_store.Drop(path);
}
else if (raw_r is IndexerIndexablesReceipt)
{
indexer_indexable_receipt = true;
}
}
pending_request.DeferredIndexables = flushed_request.DeferredIndexables;
// Reschedule if some indexable generated more indexables
if (indexer_indexable_receipt)
{
pending_request.ContinueIndexing = true;
return(true);
}
fa_store.CommitTransaction();
return(false);
}
