2 * ============LICENSE_START===================================================
3 * SPARKY (AAI UI service)
4 * ============================================================================
5 * Copyright © 2017 AT&T Intellectual Property.
6 * Copyright © 2017 Amdocs
8 * ============================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 * ============LICENSE_END=====================================================
22 * ECOMP and OpenECOMP are trademarks
23 * and service marks of AT&T Intellectual Property.
25 package org.onap.aai.sparky.search.filters;
27 import java.util.ArrayList;
28 import java.util.List;
30 import javax.json.Json;
31 import javax.json.JsonArrayBuilder;
32 import javax.json.JsonObject;
33 import javax.json.JsonObjectBuilder;
35 import org.onap.aai.sparky.search.filters.config.FiltersConfig;
36 import org.onap.aai.sparky.search.filters.config.UiFilterConfig;
37 import org.onap.aai.sparky.search.filters.entity.AggregationEntity;
38 import org.onap.aai.sparky.search.filters.entity.BoolQueryBuilder;
39 import org.onap.aai.sparky.search.filters.entity.FilteredAggregationQueryBuilder;
40 import org.onap.aai.sparky.search.filters.entity.MatchFilterCriteriaEntity;
41 import org.onap.aai.sparky.search.filters.entity.SearchFilter;
44 * Used to generate queries against Elasticsearch for filter related queries.
46 public class FilterQueryBuilder {
48 private static final int EXISTING_FILTERS_LIMIT = 0;
49 private static final int SHOULD_BRANCH_LIMIT = 2;
51 public static JsonObject createFilteredBoolQueryObject(FiltersConfig filtersConfig, List<SearchFilter> searchFilters, int minShouldMatch, List<String> fields) {
53 if (searchFilters == null || searchFilters.size() == 0) {
57 int searchFilterValueSize = 0;
59 BoolQueryBuilder boolQueryBuilder = new BoolQueryBuilder();
61 for (SearchFilter searchFilter : searchFilters) {
63 searchFilterValueSize = searchFilter.getValues().size();
66 * translate the filter-id into the filter-name from the oxm data model/config file
68 UiFilterConfig filter = filtersConfig.getFilterById(searchFilter.getFilterId());
70 if (filter == null || filter.getFilterName() == null) {
71 // log error and continue
74 String fieldName = filter.getDataSource().getFieldName();
75 if(!fields.contains(fieldName)) {
76 fields.add(fieldName);
79 if (searchFilterValueSize >= SHOULD_BRANCH_LIMIT) {
80 // Add should branches
81 for (String filterValue : searchFilter.getValues()) {
82 boolQueryBuilder.addShouldFilter(new MatchFilterCriteriaEntity(fieldName, filterValue));
85 } else if (searchFilterValueSize > EXISTING_FILTERS_LIMIT) {
87 for (String filterValue : searchFilter.getValues()) {
88 boolQueryBuilder.addMustFilter(new MatchFilterCriteriaEntity(fieldName, filterValue));
94 boolQueryBuilder.setMinShouldMatch(minShouldMatch);
96 return boolQueryBuilder.getJsonObject();
99 public static JsonObject createAggregationQueryArray(FiltersConfig filtersConfig, List<SearchFilter> searchFilters) {
101 if (searchFilters == null || searchFilters.size() == 0) {
106 FilteredAggregationQueryBuilder aggQueryBuilder = new FilteredAggregationQueryBuilder();
108 for (SearchFilter searchFilter : searchFilters) {
111 * translate the filter-id into the filter-name from the oxm data model/config file
113 UiFilterConfig filter = filtersConfig.getFilterById(searchFilter.getFilterId());
115 if (filter == null || filter.getFilterName() == null) {
116 // log error and continue
118 String fieldName = filter.getDataSource().getFieldName();
119 aggQueryBuilder.addAggregationEntity(new AggregationEntity(fieldName, fieldName, 0));
124 return aggQueryBuilder.getJsonObject();
127 public static JsonObject createCombinedBoolAndAggQuery(FiltersConfig filtersConfig, List<SearchFilter> searchFilters, int minShouldMatch) {
128 JsonObjectBuilder wrappedQueryBuilder = Json.createObjectBuilder();
129 if(searchFilters != null) {
130 List<String> fields = new ArrayList<String>();
131 JsonObject boolQuery = createFilteredBoolQueryObject(filtersConfig,searchFilters, minShouldMatch, fields);
132 JsonObject aggQuery = createAggregationQueryArray(filtersConfig, searchFilters);
134 if (boolQuery != null) {
135 wrappedQueryBuilder.add("size", 0);
137 JsonArrayBuilder filedsArrayBuilder = Json.createBuilderFactory(null).createArrayBuilder(); // TODO -> Should we use a class instance factory?
138 for(String field : fields) {
139 filedsArrayBuilder.add(field);
141 wrappedQueryBuilder.add("fields", filedsArrayBuilder.build());
143 wrappedQueryBuilder.add("query", boolQuery);
146 if (aggQuery != null) {
147 wrappedQueryBuilder.add("aggs", aggQuery);
150 return wrappedQueryBuilder.build();
153 public static JsonObject createFilterValueQueryObject(String fieldValue) {
154 JsonObjectBuilder jsonBuilder = Json.createObjectBuilder();
155 jsonBuilder.add("size", "0"); // avoid source data
156 buildZeroTermSummaryQuery(jsonBuilder, fieldValue);
158 return jsonBuilder.build();
161 public static JsonObject createNestedFilterValueQueryObject(String fieldValue,
162 String pathToField) {
163 JsonObjectBuilder jsonBuilder = Json.createObjectBuilder();
164 jsonBuilder.add("size", "0"); // avoid source data
165 generateNestedAggregations(jsonBuilder, fieldValue, pathToField);
167 return jsonBuilder.build();
170 public static void buildZeroTermSummaryQuery(JsonObjectBuilder jsonBuilder, String fieldValue) {
171 JsonObjectBuilder aggsBlobBuilder = Json.createObjectBuilder();
172 getSummaryAggsBlob(aggsBlobBuilder, fieldValue, 0);
173 jsonBuilder.add("aggs", aggsBlobBuilder.build());
176 public static void getSummaryAggsBlob(JsonObjectBuilder aggsBlobBuilder, String fieldValue,
178 JsonObjectBuilder fieldBuilder =
179 Json.createObjectBuilder().add("field", fieldValue).add("size", resultSize);
180 JsonObject aggsFieldBlob = fieldBuilder.build();
181 JsonObjectBuilder defaultBlobBuilder = Json.createObjectBuilder().add("terms", aggsFieldBlob);
182 JsonObject defaultBlob = defaultBlobBuilder.build();
183 aggsBlobBuilder.add("default", defaultBlob);
186 public static void addNestedSummaryAggsBlob(JsonObjectBuilder nestedAggsBuilder,
187 String containerValue, String fieldValue, int resultSize) {
188 JsonObjectBuilder fieldBuilder = Json.createObjectBuilder()
189 .add("field", containerValue + "." + fieldValue).add("size", resultSize);
190 JsonObject aggsFieldObject = fieldBuilder.build();
192 JsonObjectBuilder termBuilder = Json.createObjectBuilder().add("terms", aggsFieldObject);
193 JsonObject termObject = termBuilder.build();
195 JsonObjectBuilder namedAggsBuilder = Json.createObjectBuilder().add(fieldValue, termObject);
196 JsonObject namedAggsObject = namedAggsBuilder.build();
198 nestedAggsBuilder.add("aggs", namedAggsObject);
201 public static void generateNestedAggregations(JsonObjectBuilder jsonBuilder, String fieldValue,
202 String pathToField) {
203 JsonObjectBuilder nestedAggsBuilder = Json.createObjectBuilder();
205 JsonObjectBuilder pathObjectBuilder = Json.createObjectBuilder().add("path", pathToField);
206 JsonObject nestedPathObject = pathObjectBuilder.build();
208 JsonObjectBuilder nestedObjectBuilder =
209 Json.createObjectBuilder().add("nested", nestedPathObject);
211 addNestedSummaryAggsBlob(nestedObjectBuilder, pathToField, fieldValue, 0);
213 JsonObject nestedObject = nestedObjectBuilder.build();
214 nestedAggsBuilder.add(pathToField, nestedObject);
216 jsonBuilder.add("aggs", nestedAggsBuilder.build());