/**
* 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 org.apache.lucene.index.Term;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.spans.SpanNotQuery;
import org.apache.lucene.search.spans.SpanQuery;
import org.apache.lucene.search.spans.SpanTermQuery;
import org.json.JSONException;
import org.json.JSONObject;
public class SpanNotQueryConstructor extends QueryConstructor {
public static final String QUERY_TYPE = "span_not";
@Override
public Query doConstructQuery(JSONObject jsonQuery) throws JSONException
{
// "span_not" : {
// "include" : {
// "span_term" : { "field" : "value1" }
// },
// "exclude" : {
// "span_term" : { "field" : "value2" }
// }
// },
JSONObject jsonInclude = jsonQuery.getJSONObject(INCLUDE_PARAM);
JSONObject jsonExclude = jsonQuery.getJSONObject(EXCLUDE_PARAM);
JSONObject jsonInc = jsonInclude.getJSONObject(SPAN_TERM_PARAM);
String fieldInc = (String)(jsonInc.keys().next());
String valueInc = (String)jsonInc.get(fieldInc);
SpanQuery sInc = new SpanTermQuery(new Term(fieldInc, valueInc));
JSONObject jsonExc = jsonExclude.getJSONObject(SPAN_TERM_PARAM);
String fieldExc = (String)(jsonExc.keys().next());
String valueExc = (String)jsonExc.get(fieldExc);
SpanQuery sExc = new SpanTermQuery(new Term(fieldExc, valueExc));
if(!fieldInc.equals(fieldExc))
throw new IllegalArgumentException("Clauses must have same field: " + jsonQuery);
SpanNotQuery snq = new SpanNotQuery(sInc, sExc);
return snq;
}
}