http://java.sun.com/products/servlet/Filters.html this is a servlet container feature BTW , this may not be a right forum for this topic. --Noble
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... > > 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. > > > -- --Noble Paul
