/**
* This software is licensed to you under the Apache License, Version 2.0 (the
* "Apache License").
*
* LinkedIn's contributions are made under the Apache License. If you contribute
* to the Software, the contributions will be deemed to have been made under the
* Apache License, unless you expressly indicate otherwise. Please do not make any
* contributions that would be inconsistent with the Apache License.
*
* You may obtain a copy of the Apache License at http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, this software
* distributed under the Apache License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the Apache
* License for the specific language governing permissions and limitations for the
* software governed under the Apache License.
*
* © 2012 LinkedIn Corp. All Rights Reserved.
*/
package com.senseidb.search.query;
import java.util.Iterator;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.WildcardQuery;
import org.json.JSONException;
import org.json.JSONObject;
public class WildcardQueryConstructor extends QueryConstructor {
public static final String QUERY_TYPE = "wildcard";
@Override
public Query doConstructQuery(JSONObject json) throws JSONException
{
// "wildcard" : {
// "user" : "ki*y"
//
// // or
// //"user" : { "value" : "ki*y", "boost" : 2.0 }
// },
Iterator<String> iter = json.keys();
if (!iter.hasNext())
throw new IllegalArgumentException("no term value specified: " + json);
String field = iter.next();
String wildcard = null;
Object obj = json.get(field);
if(obj instanceof JSONObject){
wildcard = ((JSONObject)obj).optString(VALUE_PARAM, "");
float boost = (float)((JSONObject)obj).optDouble(BOOST_PARAM, 2.0);
Query query = new WildcardQuery(new Term(field, wildcard));
query.setBoost(boost);
return query;
}else{
wildcard = String.valueOf(obj);
return new WildcardQuery(new Term(field, wildcard));
}
}
}