On 5 May 2010 14:19, Erik Hatcher <erik.hatc...@gmail.com> wrote:
> But, I think you need to elaborate on what you're doing in your Lucene
> application to know more specifically.
Hi Erik,
perhaps, this is another way to explain and maybe solve my issue...
At query time (everything here is just an illustrative example):
PerFieldAnalyzerWrapper analyzer =
new PerFieldAnalyzerWrapper(new WhitespaceAnalyzer());
analyzer.addAnalyzer("title", new SimpleAnalyzer());
analyzer.addAnalyzer("author", new StandardAnalyzer());
...
// Lucene is doing the analysis client side...
QueryParser parser = new QueryParser("", analyzer);
Query lucene_query = parser.parse("title:dog title:The author:me
author:the the cat is on the table");
...
// Solr query is build from the query string analyzed by Lucene
SolrQuery solr_query = new SolrQuery();
solr_query.setQuery(lucene_query.toString());
This way, I don't need to do the per field analysis over dynamic
fields with Solr (on the server side).
Similarly, but a little bit more involuted, at indexing time:
String value = "The CAT is on the table";
Instead of (i.e. Lucene legacy/old existing application):
IndexWriter writer = new IndexWriter(directory, analyzer);
Document lucene_document = new Document();
Field field = new Field("title", value, Field.Store.YES,
Field.Index.TOKENIZED);
lucene_document.add(field);
writer.addDocument(lucene_document);
I will do something like:
StringBuffer solr_value = new StringBuffer();
TokenStream ts = analyzer.tokenStream("title", new StringReader(value));
Token token;
while ((token = ts.next()) != null) {
solr_value.append(token.termText()).append(" ");
}
SolrInputDocument solr_document = new SolrInputDocument();
solr_document.addField("title", solr_value.toString());
...
What do you think?
Thanks again,
Paolo
