/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.search;
import org.apache.lucene.index.Term;
import org.apache.lucene.queryParser.ParseException;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.schema.FieldType;
/**
* Create a single term query from the input value equivalent to readableToIndexed().
* This is useful for generating filter queries from the external human readable terms returned by the
* faceting or terms components.
*
* <p>
* For text fields, no analysis is done since raw terms are already returned from the faceting
* and terms components, and not all text analysis is idempotent.
* To apply analysis to text fields as well, see the {@link FieldQParserPlugin}.
* <br>
* If no analysis or transformation is desired for any type of field, see the {@link RawQParserPlugin}.
*
* <p>Other parameters: <code>f</code>, the field
* <br>Example: <code>{!term f=weight}1.5</code>
*/
public class TermQParserPlugin extends QParserPlugin {
public static String NAME = "term";
public void init(NamedList args) {
}
public QParser createParser(String qstr, SolrParams localParams, SolrParams params, SolrQueryRequest req) {
return new QParser(qstr, localParams, params, req) {
public Query parse() throws ParseException {
String fname = localParams.get(QueryParsing.F);
FieldType ft = req.getSchema().getFieldTypeNoEx(fname);
String val = localParams.get(QueryParsing.V);
return new TermQuery(new Term(fname,
null == ft ? val : ft.readableToIndexed(val)));
}
};
}
}