Re: Question About Writing Custom Query Parser Plugin

[rahul23134]

Have you made that class i want to integrate the surround plugin with solr .



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Question About Writing Custom Query Parser Plugin

[Ahson Iqbal]

Hi All

I want to integrate lucene Surround Query Parser with solr 1.4.1, and for that 
I 
am writing Custom Query Parser Plugin, To accomplish this task I should write a 
sub class of org.apache.solr.search.QParserPlugin and implement its two 
methods 

public void init(NamedList nl)
public QParser createParser(String string, SolrParams sp, SolrParams sp1, 
SolrQueryRequest sqr)

now here createParser should return an object of a subclass of 
org.apache.solr.search.QParser, but I need a parser of type 
org.apache.lucene.queryParser.surround.parser.QueryParser which is not a 
subclass of org.apache.solr.search.QParser

Now my question is should I write a sub class 
of org.apache.solr.search.QParser and internally create an object 
of org.apache.lucene.queryParser.surround.parser.QueryParser and call its 
parse method? if so how the mapping 
org.apache.lucene.queryParser.surround.query.SrndQuery (that is 
returned org.apache.lucene.queryParser.surround.parser.QueryParser ) would be 
done with org.apache.lucene.search.Query (that should be returned from parse 
method of a query parser of type org.apache.solr.search.QParser)

Thanx 
Ahsan


  

Re: Question About Writing Custom Query Parser Plugin

[Ahsan |qbal]

Any One

On Thu, Jan 27, 2011 at 1:27 PM, Ahson Iqbal mianah...@yahoo.com wrote:

 Hi All

 I want to integrate lucene Surround Query Parser with solr 1.4.1, and for
 that I
 am writing Custom Query Parser Plugin, To accomplish this task I should
 write a
 sub class of org.apache.solr.search.QParserPlugin and implement its two
 methods

 public void init(NamedList nl)
 public QParser createParser(String string, SolrParams sp, SolrParams sp1,
 SolrQueryRequest sqr)

 now here createParser should return an object of a subclass of
 org.apache.solr.search.QParser, but I need a parser of type
 org.apache.lucene.queryParser.surround.parser.QueryParser which is not a
 subclass of org.apache.solr.search.QParser

 Now my question is should I write a sub class
 of org.apache.solr.search.QParser and internally create an object
 of org.apache.lucene.queryParser.surround.parser.QueryParser and call its
 parse method? if so how the mapping
 org.apache.lucene.queryParser.surround.query.SrndQuery (that is
 returned org.apache.lucene.queryParser.surround.parser.QueryParser )
 would be
 done with org.apache.lucene.search.Query (that should be returned from
 parse
 method of a query parser of type org.apache.solr.search.QParser)

 Thanx
 Ahsan

Re: Question About Writing Custom Query Parser Plugin

[Erik Hatcher]

Yes, you need to create both a QParserPlugin and a QParser implementation.  
Look at Solr's own source code for the LuceneQParserPlugin/LuceneQParser and 
built it like that.

Baking the surround query parser into Solr out of the box would be a useful 
contribution, so if you care to give it a little bit of polish/unit testing and 
submit a patch, the community would be thankful :)

Erik

On Jan 27, 2011, at 03:27 , Ahson Iqbal wrote:

 Hi All
 
 I want to integrate lucene Surround Query Parser with solr 1.4.1, and for 
 that I 
 am writing Custom Query Parser Plugin, To accomplish this task I should write 
 a 
 sub class of org.apache.solr.search.QParserPlugin and implement its two 
 methods 
 
 public void init(NamedList nl)
 public QParser createParser(String string, SolrParams sp, SolrParams sp1, 
 SolrQueryRequest sqr)
 
 now here createParser should return an object of a subclass of 
 org.apache.solr.search.QParser, but I need a parser of type 
 org.apache.lucene.queryParser.surround.parser.QueryParser which is not a 
 subclass of org.apache.solr.search.QParser
 
 Now my question is should I write a sub class 
 of org.apache.solr.search.QParser and internally create an object 
 of org.apache.lucene.queryParser.surround.parser.QueryParser and call its 
 parse method? if so how the mapping 
 org.apache.lucene.queryParser.surround.query.SrndQuery (that is 
 returned org.apache.lucene.queryParser.surround.parser.QueryParser ) would 
 be 
 done with org.apache.lucene.search.Query (that should be returned from 
 parse 
 method of a query parser of type org.apache.solr.search.QParser)
 
 Thanx 
 Ahsan