Easiest way to reindex lucene.net indexes when nhibernate.search used?
Context =>
Calling wcf, some random stored procedures and sql stuff theoretically imports some data.Requirements =>
Reindex lucene indexes for some of imported entities.Question =>
What's the easiest way to do that?Theoretically, if nhibernate is initialized, nhibernate.search should be aware which entities are supposed to be indexed. Therefore -开发者_StackOverflow中文版 i was wondering, are there any ready to use tools/whatnot to fulfill my requirement?
Is this the only way?
My quick and dirty approach =>
public static class LuceneReindexer
{
public static void Run()
{
var entityTypes = typeof(FooEntity).Assembly.GetTypes()
.Where(x => x.BaseType == typeof(Entity)
|| x.BaseType == typeof(KeyedEntity));
foreach (var t in entityTypes)
if (TypeDescriptor
.GetAttributes(t)[typeof(IndexedAttribute)] != null)
ReindexEntity(t);
}
private static void ReindexEntity(Type t)
{
var stop = false;
var index = 0;
const int pageSize = 500;
do
{
var list = NHibernateSession.Current.CreateCriteria(t)
.SetFirstResult(index)
.SetMaxResults(pageSize).List();
NHibernateSession.Current.Transaction.Begin();
foreach (var itm in list)
NHibernateSession.Current.Index(itm);
NHibernateSession.Current.Transaction.Commit();
index += pageSize;
if (list.Count < pageSize) stop = true;
} while (!stop);
}
}
No ideas about transaction and paging part (and don't care at the moment). Kind a does what i needed. :D
精彩评论