Hi all !
I need a new feature in solr : to allow the configuration of the
IndexSearcher class in the schema configuration to override the lucene
IndexSearcher .
I noticed that there's only one point in the code where the searcher is built:
<code>
in org/apache/solr/search/SolrIndexSearcher.java:
private SolrIndexSearcher(IndexSchema schema, String name,
IndexReader r, boolean closeReader, boolean enableCache) {
this.schema = schema;
this.name = "Searcher@" + Integer.toHexString(hashCode()) +
(name!=null ? " "+name : "");
log.info("Opening " + this.name);
reader = r;
/****** HERE *********/
searcher = new IndexSearcher(r);
</code>
I'd like to allow a new tag in the schema :
<schema name="..." version="1.1">
<luceneIndexSearcher class="com.acme.lucene.searcher.MyOwnSearcher" />
....
</schema>
I dont exactly know what is the best way to do it.
I was think of:
* In IndexSchema:
implement a method
String getLuceneIndexSearcherClassName()
* In SolrIndexSearcher
in private SolrIndexSearcher:
String idxSearcherClassName = schema.getLuceneIndexSearcherClassName()
// Then load the class itself
// Then build a new instance of this class with the IndexReader r
What solr special class loader and instance builder do I have to use
to do the last two operation ?
Can I use directly :
Class idxSearcherClass = Config.findClass(idxSearcherClassName)
and then build a idxSearcher by using the standard java.lang.Class methods ?
Am I in the right and does it fit with the solr architecture to do that ?
I'd be perfectly happy to implement that and submit a patch.
Thanks for your comments and answers.
Jerome
--
Jerome Eteve.
[EMAIL PROTECTED]
http://jerome.eteve.free.fr/
