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/**
* ============LICENSE_START===================================================
* SPARKY (AAI UI service)
* ============================================================================
* Copyright © 2017 AT&T Intellectual Property.
* Copyright © 2017 Amdocs
* All rights reserved.
* ============================================================================
* 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.
* ============LICENSE_END=====================================================
*
* ECOMP and OpenECOMP are trademarks
* and service marks of AT&T Intellectual Property.
*/
package org.onap.aai.sparky.search.filters.entity;
import java.util.ArrayList;
import java.util.List;
import javax.json.Json;
import javax.json.JsonArray;
import javax.json.JsonArrayBuilder;
import javax.json.JsonBuilderFactory;
import javax.json.JsonObject;
import javax.json.JsonObjectBuilder;
public class BoolQueryBuilder {
private List<MatchFilterCriteriaEntity> mustFilters;
private List<MatchFilterCriteriaEntity> shouldFilters;
private int minShouldMatch;
public BoolQueryBuilder() {
mustFilters = new ArrayList<MatchFilterCriteriaEntity>();
shouldFilters = new ArrayList<MatchFilterCriteriaEntity>();
minShouldMatch = -1;
}
public void addMustFilter(MatchFilterCriteriaEntity filter) {
if (!mustFilters.contains(filter)) {
mustFilters.add(filter);
}
}
public void addShouldFilter(MatchFilterCriteriaEntity filter) {
if (!shouldFilters.contains(filter)) {
shouldFilters.add(filter);
}
}
public void setMinShouldMatch(int minShouldMatch) {
this.minShouldMatch = minShouldMatch;
}
public boolean isMatchAll() {
return (mustFilters.isEmpty() && shouldFilters.isEmpty());
}
public JsonObject getJsonObject() {
/*
* Specify a null config for now, but if we want normalize all the builders, we can do it at one
* location, when we are ready.
*/
JsonBuilderFactory factory = Json.createBuilderFactory(null);
JsonObjectBuilder boolBuilder = factory.createObjectBuilder();
if(!mustFilters.isEmpty()){
JsonArrayBuilder mustArrayBuilder = factory.createArrayBuilder();
for (MatchFilterCriteriaEntity matchCriteria : mustFilters) {
mustArrayBuilder.add(matchCriteria.getJsonObject());
}
JsonArray mustArray = mustArrayBuilder.build();
boolBuilder.add("must", mustArray);
}
if (!shouldFilters.isEmpty()) {
JsonArray shouldArray = null;
JsonArrayBuilder shouldArrayBuilder = factory.createArrayBuilder();
for (MatchFilterCriteriaEntity matchCriteria : shouldFilters) {
shouldArrayBuilder.add(matchCriteria.getJsonObject());
}
shouldArray = shouldArrayBuilder.build();
boolBuilder.add("should", shouldArray).add("min_should_match", minShouldMatch);
}
JsonObjectBuilder queryObjectBuilder = factory.createObjectBuilder();
/*
* If both filter lists are empty then we are doing an aggregation
* based off fields. Just match-all for the query.
*/
if(isMatchAll()) {
JsonObject matchAllObject = factory.createObjectBuilder().build();
queryObjectBuilder.add("match_all", matchAllObject);
} else {
queryObjectBuilder.add("bool", boolBuilder.build());
}
return queryObjectBuilder.build();
}
}
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