For what I saw in the documentation from the class org.apache.lucene.search.Query I can just iterate over the terms using the method extractTerms. How can I extract the operators?
2012/10/4 Amit Nithian <anith...@gmail.com> > I think you'd want to start by looking at the rb.getQuery() in the > prepare (or process if you are trying to do post-results analysis). > This returns a Query object that would contain everything in that and > I'd then look at the Javadoc to see how to traverse it. I'm sure some > runtime type-casting may be necessary to get at the sub-structures > > On Thu, Oct 4, 2012 at 9:23 AM, Davide Lorenzo Marino > <davide.mar...@gmail.com> wrote: > > I don't need really start from the query String. > > What I need is obtain a list of terms and operators. > > So the real problem is: > > > > How can I access the Lucene Query structure to traverse it? > > > > Davide Marino > > > > > > 2012/10/4 Jack Krupansky <j...@basetechnology.com> > > > >> I'm not quite following what the issue is here. I mean, the Solr > >> QueryComponent generates a Lucene Query structure and you need to write > >> code to recursively traverse that Lucene Query structure and generate > your > >> preferred form of output. There would be no need to look at the original > >> query string. So, what exactly are you asking? > >> > >> Maybe you simply need to read up on Lucene Query and its subclasses to > >> understand what that structure looks like. > >> > >> -- Jack Krupansky > >> > >> -----Original Message----- From: Davide Lorenzo Marino > >> Sent: Thursday, October 04, 2012 11:36 AM > >> To: solr-user@lucene.apache.org > >> Subject: Re: Getting list of operators and terms for a query > >> > >> > >> It's ok.. I did it and I took the query string. > >> The problem is convert the java.lang.string (query) in a list of term > and > >> operators and doing it using the same parser used by Solr to execute the > >> queries. > >> > >> 2012/10/4 Mikhail Khludnev <mkhlud...@griddynamics.com> > >> > >> you've got ResponseBuilder as process() or prepare() argument, check > >>> "query" field, but your component should be registered after > >>> QueryComponent > >>> in your requestHandler config. > >>> > >>> On Thu, Oct 4, 2012 at 6:03 PM, Davide Lorenzo Marino < > >>> davide.mar...@gmail.com> wrote: > >>> > >>> > Hi All, > >>> > i'm working in a new searchComponent that analyze the search queries. > >>> > I need to know if given a query string is possible to get the list of > >>> > operators and terms (better in polish notation)? > >>> > I mean if the default field is "country" and the query is the String > >>> > > >>> > "england OR (name:paul AND city:rome)" > >>> > > >>> > to get the List > >>> > > >>> > [ Operator OR, Term country:england, OPERATOR AND, Term name:paul, > Term > >>> > city:rome ] > >>> > > >>> > Thanks in advance > >>> > > >>> > Davide Marino > >>> > > >>> > >>> > >>> > >>> -- > >>> Sincerely yours > >>> Mikhail Khludnev > >>> Tech Lead > >>> Grid Dynamics > >>> > >>> <http://www.griddynamics.com> > >>> <mkhlud...@griddynamics.com> > >>> > >>> > >> >
