[SOLR-9275] make XML Query Parser support extensible-via-configuration

• Type: New Feature
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 5.6, 6.2, 7.0
• Assignee: Christine Poerschke
• Reporter: Christine Poerschke
• Created: 04/Jul/16 11:43
• Updated: 08/Jun/19 15:38
• Resolved: 22/Jul/16 17:10

Description

SOLR-839 added XML QueryParser support (deftype=xmlparser) and this ticket here proposes to make that support extensible-via-configuration.

Objective:

• To support use of custom query builders.
• To support use of custom query builders without a corresponding custom XmlQParser plugin class.

Illustration:

• solrconfig.xml snippet to configure use of the custom builders

  <queryParser name="testxmlparser" class="XmlQParserPlugin">
    <str name="HelloQuery">org.apache.solr.search.HelloQueryBuilder</str>
    <str name="GoodbyeQuery">org.apache.solr.search.GoodbyeQueryBuilder</str>
  </queryParser>
  

• HelloQueryBuilder and GoodbyeQueryBuilder both extend the new abstract SolrQueryBuilder class.

  + public abstract class SolrQueryBuilder implements QueryBuilder {
  +   protected final SolrQueryRequest req;
  +   protected final QueryBuilder queryFactory;
  +   public SolrQueryBuilder(String defaultField, Analyzer analyzer,
  +       SolrQueryRequest req, QueryBuilder queryFactory) {
  +     this.req = req;
  +     this.queryFactory = queryFactory;
  +   }
  + }
  

Issue Links

• relates to: SOLR-9933 support span queries in SolrCoreParser
• relates to: SOLR-9932 add TestSolrCoreParser class
• requires: SOLR-839 XML Query Parser support (deftype=xmlparser)