2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017 Amdocs
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
23 package org.onap.aai.sparky.search.filters;
25 import java.util.ArrayList;
26 import java.util.List;
28 import javax.json.Json;
29 import javax.json.JsonArrayBuilder;
30 import javax.json.JsonObject;
31 import javax.json.JsonObjectBuilder;
33 import org.onap.aai.sparky.search.filters.config.FiltersConfig;
34 import org.onap.aai.sparky.search.filters.config.UiFilterConfig;
35 import org.onap.aai.sparky.search.filters.entity.AggregationEntity;
36 import org.onap.aai.sparky.search.filters.entity.BoolQueryBuilder;
37 import org.onap.aai.sparky.search.filters.entity.FilteredAggregationQueryBuilder;
38 import org.onap.aai.sparky.search.filters.entity.MatchFilterCriteriaEntity;
39 import org.onap.aai.sparky.search.filters.entity.SearchFilter;
42 * Used to generate queries against Elasticsearch for filter related queries.
44 public class FilterQueryBuilder {
46 private static final int EXISTING_FILTERS_LIMIT = 0;
47 private static final int SHOULD_BRANCH_LIMIT = 2;
49 public static JsonObject createFilteredBoolQueryObject(List<SearchFilter> searchFilters,
50 int minShouldMatch, List<String> fields) {
52 if (searchFilters == null || searchFilters.size() == 0) {
56 int searchFilterValueSize = 0;
58 BoolQueryBuilder boolQueryBuilder = new BoolQueryBuilder();
60 FiltersConfig filters = FiltersConfig.getInstance();
62 for (SearchFilter searchFilter : searchFilters) {
64 searchFilterValueSize = searchFilter.getValues().size();
67 * translate the filter-id into the filter-name from the oxm data model/config file
69 UiFilterConfig filter = filters.getFilterById(searchFilter.getFilterId());
71 if (filter == null || filter.getFilterName() == null) {
72 // log error and continue
75 String fieldName = filter.getDataSource().getFieldName();
76 if (!fields.contains(fieldName)) {
77 fields.add(fieldName);
80 if (searchFilterValueSize >= SHOULD_BRANCH_LIMIT) {
81 // Add should branches
82 for (String filterValue : searchFilter.getValues()) {
83 boolQueryBuilder.addShouldFilter(new MatchFilterCriteriaEntity(fieldName, filterValue));
86 } else if (searchFilterValueSize > EXISTING_FILTERS_LIMIT) {
88 for (String filterValue : searchFilter.getValues()) {
89 boolQueryBuilder.addMustFilter(new MatchFilterCriteriaEntity(fieldName, filterValue));
95 boolQueryBuilder.setMinShouldMatch(minShouldMatch);
97 return boolQueryBuilder.getJsonObject();
100 public static JsonObject createAggregationQueryArray(List<SearchFilter> searchFilters) {
102 if (searchFilters == null || searchFilters.size() == 0) {
107 FilteredAggregationQueryBuilder aggQueryBuilder = new FilteredAggregationQueryBuilder();
109 FiltersConfig filters = FiltersConfig.getInstance();
111 for (SearchFilter searchFilter : searchFilters) {
114 * translate the filter-id into the filter-name from the oxm data model/config file
116 UiFilterConfig filter = filters.getFilterById(searchFilter.getFilterId());
118 if (filter == null || filter.getFilterName() == null) {
119 // log error and continue
121 String fieldName = filter.getDataSource().getFieldName();
122 aggQueryBuilder.addAggregationEntity(new AggregationEntity(fieldName, fieldName, 0));
127 return aggQueryBuilder.getJsonObject();
130 public static JsonObject createCombinedBoolAndAggQuery(List<SearchFilter> searchFilters,
131 int minShouldMatch) {
132 JsonObjectBuilder wrappedQueryBuilder = Json.createObjectBuilder();
133 if (searchFilters != null) {
134 List<String> fields = new ArrayList<String>();
135 JsonObject boolQuery = createFilteredBoolQueryObject(searchFilters, minShouldMatch, fields);
136 JsonObject aggQuery = createAggregationQueryArray(searchFilters);
138 if (boolQuery != null) {
139 wrappedQueryBuilder.add("size", 0);
141 JsonArrayBuilder filedsArrayBuilder = Json.createBuilderFactory(null).createArrayBuilder(); // TODO
150 for (String field : fields) {
151 filedsArrayBuilder.add(field);
153 wrappedQueryBuilder.add("fields", filedsArrayBuilder.build());
155 wrappedQueryBuilder.add("query", boolQuery);
158 if (aggQuery != null) {
159 wrappedQueryBuilder.add("aggs", aggQuery);
162 return wrappedQueryBuilder.build();
165 public static JsonObject createFilterValueQueryObject(String fieldValue) {
166 JsonObjectBuilder jsonBuilder = Json.createObjectBuilder();
167 jsonBuilder.add("size", "0"); // avoid source data
168 buildZeroTermSummaryQuery(jsonBuilder, fieldValue);
170 return jsonBuilder.build();
173 public static JsonObject createNestedFilterValueQueryObject(String fieldValue,
174 String pathToField) {
175 JsonObjectBuilder jsonBuilder = Json.createObjectBuilder();
176 jsonBuilder.add("size", "0"); // avoid source data
177 generateNestedAggregations(jsonBuilder, fieldValue, pathToField);
179 return jsonBuilder.build();
182 public static void buildZeroTermSummaryQuery(JsonObjectBuilder jsonBuilder, String fieldValue) {
183 JsonObjectBuilder aggsBlobBuilder = Json.createObjectBuilder();
184 getSummaryAggsBlob(aggsBlobBuilder, fieldValue, 0);
185 jsonBuilder.add("aggs", aggsBlobBuilder.build());
188 public static void getSummaryAggsBlob(JsonObjectBuilder aggsBlobBuilder, String fieldValue,
190 JsonObjectBuilder fieldBuilder =
191 Json.createObjectBuilder().add("field", fieldValue).add("size", resultSize);
192 JsonObject aggsFieldBlob = fieldBuilder.build();
193 JsonObjectBuilder defaultBlobBuilder = Json.createObjectBuilder().add("terms", aggsFieldBlob);
194 JsonObject defaultBlob = defaultBlobBuilder.build();
195 aggsBlobBuilder.add("default", defaultBlob);
198 public static void addNestedSummaryAggsBlob(JsonObjectBuilder nestedAggsBuilder,
199 String containerValue, String fieldValue, int resultSize) {
200 JsonObjectBuilder fieldBuilder = Json.createObjectBuilder()
201 .add("field", containerValue + "." + fieldValue).add("size", resultSize);
202 JsonObject aggsFieldObject = fieldBuilder.build();
204 JsonObjectBuilder termBuilder = Json.createObjectBuilder().add("terms", aggsFieldObject);
205 JsonObject termObject = termBuilder.build();
207 JsonObjectBuilder namedAggsBuilder = Json.createObjectBuilder().add(fieldValue, termObject);
208 JsonObject namedAggsObject = namedAggsBuilder.build();
210 nestedAggsBuilder.add("aggs", namedAggsObject);
213 public static void generateNestedAggregations(JsonObjectBuilder jsonBuilder, String fieldValue,
214 String pathToField) {
215 JsonObjectBuilder nestedAggsBuilder = Json.createObjectBuilder();
217 JsonObjectBuilder pathObjectBuilder = Json.createObjectBuilder().add("path", pathToField);
218 JsonObject nestedPathObject = pathObjectBuilder.build();
220 JsonObjectBuilder nestedObjectBuilder =
221 Json.createObjectBuilder().add("nested", nestedPathObject);
223 addNestedSummaryAggsBlob(nestedObjectBuilder, pathToField, fieldValue, 0);
225 JsonObject nestedObject = nestedObjectBuilder.build();
226 nestedAggsBuilder.add(pathToField, nestedObject);
228 jsonBuilder.add("aggs", nestedAggsBuilder.build());