I use a singleton class but there are other ways in tomcat. Can't remember what - maybe application scope.
-- Ian. On Thu, Sep 5, 2013 at 4:46 PM, David Miranda <david.b.mira...@gmail.com> wrote: > Where I can initialize the SearchManager variable to after use it in the > REST servlet to do research in the index? > > > 2013/9/5 Ian Lea <ian....@gmail.com> > >> I think that blog post was bleeding edge and the API changed a bit >> subsequently. >> >> I use >> >> Directory dir = whatever; >> SearcherManager sm = new SearcherManager(dir, new SearcherFactory()); >> >> to get default behaviour. The javadocs for SearcherFactory explain >> that you can write your own implementation if you want custom >> behaviour such as warming. >> >> >> -- >> Ian. >> >> >> On Thu, Sep 5, 2013 at 3:53 PM, David Miranda <david.b.mira...@gmail.com> >> wrote: >> > Hi, >> > >> > I'm trying to implement my code with SearchManager to make my app >> > thread-safe. I'm follow this post: >> > >> http://blog.mikemccandless.com/2011/09/lucenes-searchermanager-simplifies.html >> > >> > There is a class that implements "SearchWarmer". I can't find this class >> in >> > the Lucene library, what class is that? >> > >> > Thanks. >> > >> > >> > 2013/9/5 Aditya <findbestopensou...@gmail.com> >> > >> >> Hi >> >> >> >> You want to use REST service for your search, then my advice would be to >> >> use Solr. As it has buitl-in functionality of REST API. >> >> >> >> If you want to use Lucene then below are my comments: >> >> 1. In do search function, you are creating reader object. If this call >> is >> >> invoked for every query then it would be very expensive. You need to >> create >> >> it once globally and re opon it, if the index is modified. Its better >> use >> >> SearchManager. >> >> >> >> Regards >> >> Aditya >> >> www.findbestopensource.com - Search from 1 Million open source >> projects. >> >> >> >> >> >> >> >> On Thu, Sep 5, 2013 at 6:46 AM, David Miranda < >> david.b.mira...@gmail.com >> >> >wrote: >> >> >> >> > Hi, >> >> > >> >> > I'm developing a web application, that contains a REST service in the >> >> > Tomcat, that receives several requests per second. >> >> > The REST requests do research in a Lucene index, to do this i use the >> >> > IndexSearch. >> >> > >> >> > My questions are: >> >> > - There are concurrency problems in multiple research? >> >> > - What the best design pattern to do this? >> >> > >> >> > public class IndexResearch(){ >> >> > > private static int MAX_HITS = 500; >> >> > > private static String DIRECTORY = "indexdir"; >> >> > > private IndexSearcher searcher; >> >> > > private StandardAnalyzer analyzer; >> >> > > >> >> > >> >> > >> >> > >> >> > > public IndexResearch(){ >> >> > > } >> >> > > public String doSearch(String text){ >> >> > > analyzer = new StandardAnalyzer(Version.LUCENE_43); >> >> > > topic = QueryParser.escape(topic); >> >> > > Query q = new QueryParser(Version.LUCENE_43, "field", analyzer >> >> > > ).parse(text); >> >> > > File indexDirectory = new File(DIRECTORY); >> >> > > IndexReader reader; >> >> > > reader = >> DirectoryReader.open(FSDirectory.open(indexDirectory)); >> >> > > searcher = new IndexSearcher(reader); >> >> > > >> >> > /*more code*/ >> >> > >> >> > > } >> >> > > } >> >> > >> >> > >> >> > Can I create, in the servlet, one object of this class per client >> request >> >> > (Is that the best design pattern)? >> >> > >> >> > Thanks in advance. >> >> > >> >> >> > >> > >> > >> > -- >> > Cumprimentos, >> > David Miranda >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> > > > -- > Cumprimentos, > David Miranda --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
