On Tue, May 13, 2008 at 5:04 PM, Umar Shah <[EMAIL PROTECTED]> wrote:
> > > > > On Tue, May 13, 2008 at 4:39 PM, Shalin Shekhar Mangar < > [EMAIL PROTECTED]> wrote: > >> Did you put a filter-mapping in web.xml? > > > no, > I just did that and it seems to be working... > thanks for all the help folks, this community really ROCKS!! I just implemented my filter successfully... and in doing so also got introduced to the servlet world. P.S: I wouldn't have asked unrelated questions here had i been able to discern the difference. thanks again. > > what is filter-mapping required for? > > >> >> On Tue, May 13, 2008 at 4:20 PM, Umar Shah <[EMAIL PROTECTED]> wrote: >> >> > On Mon, May 12, 2008 at 10:30 PM, Shalin Shekhar Mangar < >> > [EMAIL PROTECTED]> wrote: >> > >> > > You'll *not* write a servlet. You'll write implement the Filter >> > interface >> > > >> http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/Filter.html >> > > >> > > In the doFilter method, you'll create a ServletRequestWrapper which >> > > changes >> > > the incoming param. Then you'll call chain.doFilter with the new >> request >> > > object. You'll need to add this filter before the SolrRequestFilter in >> > > Solr's web.xml >> > >> > I created a CustomFilter that would dump the request contents to a file, >> > I created the jar and added it to the solr.war in WEB_INF/lib folder >> > I edited the web.xml in the same folder to include the following lines: >> > <filter> >> > <filter-name>CustomFilter</filter-name> >> > <filter-class>(packagename).CustomFilter</filter-class> >> > </filter> >> > >> > where CustomFilter is the name of the class extending >> > javax.servlet.Filter. >> > >> > I don't see anything in the contents of the file.. >> > >> > thanks for your help >> > -umar >> > >> > >> > > >> > > Look at >> > > >> > > >> > >> http://www.onjava.com/pub/a/onjava/2001/05/10/servlet_filters.html?page=1for >> > > more details. >> > > >> > > On Mon, May 12, 2008 at 8:51 PM, Umar Shah <[EMAIL PROTECTED]> >> wrote: >> > > >> > > > On Mon, May 12, 2008 at 8:42 PM, Shalin Shekhar Mangar < >> > > > [EMAIL PROTECTED]> wrote: >> > > > >> > > > > ServletRequest and ServletRequestWrapper are part of the Java >> > > > servlet-api >> > > > > (not Solr). Basically, Koji is hinting at writing a ServletFilter >> > > > > implementation (again using servlet-api) and creating a wrapper >> > > > > ServletRequest which modifies the underlying request params which >> > can >> > > > then >> > > > > be used by Solr. >> > > > > >> > > > >> > > > sorry for the silly question, basically i am new to servlets. >> > > > Now If my understanding is right , I will need to create a >> > > servlet/wrapper >> > > > that would listen the user facing queries and then pass the >> processed >> > > text >> > > > to solr request handler and I need to pack this servlet class file >> > into >> > > > Solr >> > > > war file. >> > > > >> > > > But How would I ensure that my servlet is called instead of solr >> > request >> > > > handler? >> > > > >> > > > >> > > > > On Mon, May 12, 2008 at 8:36 PM, Umar Shah <[EMAIL PROTECTED]> >> > wrote: >> > > > > >> > > > > > On Mon, May 12, 2008 at 2:50 PM, Koji Sekiguchi < >> > [EMAIL PROTECTED]> >> > > > > > wrote: >> > > > > > >> > > > > > > Hi Umar, >> > > > > > > >> > > > > > > You may be able to preprocess your request parameter in your >> > > > > > > servlet filter. In the doFilter() method, you do: >> > > > > > > >> > > > > > > ServletRequest myRequest = new MyServletRequestWrapper( >> request >> > ); >> > > > > > >> > > > > > >> > > > > > Thanks for your response, >> > > > > > >> > > > > > Where is the ServletRequest class , I am using Solr 1.3 trunk >> code >> > > > > > found SolrServletm, butit is depricated, which class can I use >> > > instead >> > > > > of >> > > > > > SolrRequest in 1.3 codebase? >> > > > > > >> > > > > > >> > > > > > I also tried overloading Standard request handler , How do I re >> > > write >> > > > > > queryparams there? >> > > > > > >> > > > > > Can you point me to some documentation? >> > > > > > >> > > > > > >> > > > > > > : >> > > > > > > chain.doFilter( myRequest, response ); >> > > > > > > >> > > > > > > And you have MyServletRequestWrapper that extends >> > > > > ServletRequestWrapper. >> > > > > > > Then you can get|set q* parameters through getParameter() >> > method. >> > > > > > > >> > > > > > > Hope this helps, >> > > > > > > >> > > > > > > Koji >> > > > > > > >> > > > > > > >> > > > > > > >> > > > > > > Umar Shah wrote: >> > > > > > > >> > > > > > > > Hi, >> > > > > > > > >> > > > > > > > Due some requirement I need to transform the user queries >> > before >> > > > > > passing >> > > > > > > > it >> > > > > > > > to the standard handler in Solr, can anyone suggest me the >> > best >> > > > way >> > > > > > to >> > > > > > > > do >> > > > > > > > this. >> > > > > > > > >> > > > > > > > I will need to use a transfomation class that would provide >> > > > > functions >> > > > > > to >> > > > > > > > process the input query 'qIn' and transform it to the >> > resultant >> > > > > query >> > > > > > > > 'qOut' >> > > > > > > > and then pass it to solr handler as if qOut were the >> original >> > > user >> > > > > > > > query. >> > > > > > > > >> > > > > > > > thanks in anticipation, >> > > > > > > > -umar >> > > > > > > > >> > > > > > > > >> > > > > > > > >> > > > > > > >> > > > > > > >> > > > > > >> > > > > >> > > > > >> > > > > >> > > > > -- >> > > > > Regards, >> > > > > Shalin Shekhar Mangar. >> > > > > >> > > > >> > > >> > > >> > > >> > > -- >> > > Regards, >> > > Shalin Shekhar Mangar. >> > > >> > >> >> >> >> -- >> Regards, >> Shalin Shekhar Mangar. >> > >
