/**
* Copyright 2014 National University of Ireland, Galway.
*
* This file is part of the SIREn project. Project and contact information:
*
* https://github.com/rdelbru/SIREn
*
* Licensed 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.sindice.siren.qparser.json.dsl;
import org.apache.lucene.search.BooleanClause;
import org.sindice.siren.search.node.NodeBooleanClause;
/**
* Abstract class that represents a clause object of the JSON query syntax.
*/
abstract class QueryClause {
private final Occur occur;
private final AbstractNodeQuery query;
QueryClause(final AbstractNodeQuery query, final Occur occur) {
this.query = query;
this.occur = occur;
}
AbstractNodeQuery getQuery() {
return query;
}
Occur getOccur() {
return occur;
}
BooleanClause.Occur getBooleanOccur() {
return toBooleanOccur(occur);
}
NodeBooleanClause.Occur getNodeBooleanOccur() {
return toNodeBooleanOccur(occur);
}
enum Occur { MUST, MUST_NOT, SHOULD }
static NodeBooleanClause.Occur toNodeBooleanOccur(final Occur occur) {
switch (occur) {
case MUST:
return NodeBooleanClause.Occur.MUST;
case MUST_NOT:
return NodeBooleanClause.Occur.MUST_NOT;
case SHOULD:
return NodeBooleanClause.Occur.SHOULD;
default:
throw new IllegalArgumentException("Unknown occur received");
}
}
static BooleanClause.Occur toBooleanOccur(final Occur occur) {
switch (occur) {
case MUST:
return BooleanClause.Occur.MUST;
case MUST_NOT:
return BooleanClause.Occur.MUST_NOT;
case SHOULD:
return BooleanClause.Occur.SHOULD;
default:
throw new IllegalArgumentException("Unknown occur received");
}
}
}