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- /*
- * SonarQube
- * Copyright (C) 2009-2023 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
- package org.sonar.server.es;
-
- import java.time.ZoneId;
- import java.util.ArrayList;
- import java.util.Collections;
- import java.util.Date;
- import java.util.LinkedHashMap;
- import java.util.List;
- import java.util.Map;
- import java.util.Set;
- import javax.annotation.CheckForNull;
- import org.apache.commons.lang.builder.ReflectionToStringBuilder;
- import org.apache.commons.lang.builder.ToStringStyle;
- import org.elasticsearch.action.search.SearchResponse;
- import org.elasticsearch.search.aggregations.Aggregation;
- import org.elasticsearch.search.aggregations.Aggregations;
- import org.elasticsearch.search.aggregations.HasAggregations;
- import org.elasticsearch.search.aggregations.bucket.MultiBucketsAggregation;
- import org.elasticsearch.search.aggregations.bucket.filter.Filter;
- import org.elasticsearch.search.aggregations.bucket.histogram.Histogram;
- import org.elasticsearch.search.aggregations.bucket.missing.Missing;
- import org.elasticsearch.search.aggregations.bucket.nested.ReverseNested;
- import org.elasticsearch.search.aggregations.bucket.terms.Terms;
- import org.elasticsearch.search.aggregations.metrics.Sum;
-
- import static org.sonar.api.utils.DateUtils.parseDateTime;
- import static org.sonarqube.ws.client.issue.IssuesWsParameters.FACET_MODE_EFFORT;
-
- public class Facets {
-
- public static final String SELECTED_SUB_AGG_NAME_SUFFIX = "_selected";
- public static final String TOTAL = "total";
- private static final String NO_DATA_PREFIX = "no_data_";
- private static final String FILTER_SUFFIX = "_filter";
- private static final String FILTER_BY_RULE_PREFIX = "filter_by_rule_types_";
-
- private final LinkedHashMap<String, LinkedHashMap<String, Long>> facetsByName;
- private final ZoneId timeZone;
-
- public Facets(LinkedHashMap<String, LinkedHashMap<String, Long>> facetsByName, ZoneId timeZone) {
- this.facetsByName = facetsByName;
- this.timeZone = timeZone;
- }
-
- public Facets(SearchResponse response, ZoneId timeZone) {
- this.facetsByName = new LinkedHashMap<>();
- this.timeZone = timeZone;
- Aggregations aggregations = response.getAggregations();
- if (aggregations != null) {
- for (Aggregation facet : aggregations) {
- processAggregation(facet);
- }
- }
- }
-
- private void processAggregation(Aggregation aggregation) {
- if (Missing.class.isAssignableFrom(aggregation.getClass())) {
- processMissingAggregation((Missing) aggregation);
- } else if (Terms.class.isAssignableFrom(aggregation.getClass())) {
- processTermsAggregation((Terms) aggregation);
- } else if (Filter.class.isAssignableFrom(aggregation.getClass())) {
- processSubAggregations((Filter) aggregation);
- } else if (HasAggregations.class.isAssignableFrom(aggregation.getClass())) {
- processSubAggregations((HasAggregations) aggregation);
- } else if (Histogram.class.isAssignableFrom(aggregation.getClass())) {
- processDateHistogram((Histogram) aggregation);
- } else if (Sum.class.isAssignableFrom(aggregation.getClass())) {
- processSum((Sum) aggregation);
- } else if (MultiBucketsAggregation.class.isAssignableFrom(aggregation.getClass())) {
- processMultiBucketAggregation((MultiBucketsAggregation) aggregation);
- } else {
- throw new IllegalArgumentException("Aggregation type not supported yet: " + aggregation.getClass());
- }
- }
-
- private void processMissingAggregation(Missing aggregation) {
- long docCount = aggregation.getDocCount();
- if (docCount > 0L) {
- LinkedHashMap<String, Long> facet = getOrCreateFacet(aggregation.getName().replace("_missing", ""));
- if (aggregation.getAggregations().getAsMap().containsKey(FACET_MODE_EFFORT)) {
- facet.put("", Math.round(((Sum) aggregation.getAggregations().get(FACET_MODE_EFFORT)).getValue()));
- } else {
- facet.put("", docCount);
- }
- }
- }
-
- private void processTermsAggregation(Terms aggregation) {
- String facetName = aggregation.getName();
- // TODO document this naming convention
- if (facetName.contains("__") && !facetName.startsWith("__")) {
- facetName = facetName.substring(0, facetName.indexOf("__"));
- }
- facetName = facetName.replace(SELECTED_SUB_AGG_NAME_SUFFIX, "");
- LinkedHashMap<String, Long> facet = getOrCreateFacet(facetName);
- for (Terms.Bucket value : aggregation.getBuckets()) {
- List<Aggregation> aggregationList = value.getAggregations().asList();
- if (aggregationList.size() == 1) {
- facet.put(value.getKeyAsString(), Math.round(((Sum) aggregationList.get(0)).getValue()));
- } else {
- facet.put(value.getKeyAsString(), value.getDocCount());
- }
- }
- }
-
- private void processSubAggregations(HasAggregations aggregation) {
- if (Filter.class.isAssignableFrom(aggregation.getClass())) {
- Filter filter = (Filter) aggregation;
- if (filter.getName().startsWith(NO_DATA_PREFIX)) {
- LinkedHashMap<String, Long> facet = getOrCreateFacet(filter.getName().replaceFirst(NO_DATA_PREFIX, ""));
- facet.put("NO_DATA", ((Filter) aggregation).getDocCount());
- }
- }
-
- for (Aggregation sub : getOrderedAggregations(aggregation)) {
- processAggregation(sub);
- }
- }
-
- private static List<Aggregation> getOrderedAggregations(HasAggregations topAggregation) {
- String topAggregationName = ((Aggregation) topAggregation).getName();
- List<Aggregation> orderedAggregations = new ArrayList<>();
- for (Aggregation aggregation : topAggregation.getAggregations()) {
- if (isNameMatchingTopAggregation(topAggregationName, aggregation.getName())) {
- orderedAggregations.add(0, aggregation);
- } else {
- orderedAggregations.add(aggregation);
- }
- }
- return orderedAggregations;
- }
-
- private static boolean isNameMatchingTopAggregation(String topAggregationName, String aggregationName) {
- return aggregationName.equals(topAggregationName) ||
- aggregationName.equals(FILTER_BY_RULE_PREFIX + topAggregationName.replace(FILTER_SUFFIX, ""));
- }
-
- private void processDateHistogram(Histogram aggregation) {
- LinkedHashMap<String, Long> facet = getOrCreateFacet(aggregation.getName());
- for (Histogram.Bucket value : aggregation.getBuckets()) {
- String day = dateTimeToDate(value.getKeyAsString(), timeZone);
- if (value.getAggregations().getAsMap().containsKey(FACET_MODE_EFFORT)) {
- facet.put(day, Math.round(((Sum) value.getAggregations().get(FACET_MODE_EFFORT)).getValue()));
- } else {
- facet.put(day, value.getDocCount());
- }
- }
- }
-
- private static String dateTimeToDate(String timestamp, ZoneId timeZone) {
- Date date = parseDateTime(timestamp);
- return date.toInstant().atZone(timeZone).toLocalDate().toString();
- }
-
- private void processSum(Sum aggregation) {
- getOrCreateFacet(aggregation.getName()).put(TOTAL, Math.round(aggregation.getValue()));
- }
-
- private void processMultiBucketAggregation(MultiBucketsAggregation aggregation) {
- LinkedHashMap<String, Long> facet = getOrCreateFacet(aggregation.getName());
- aggregation.getBuckets().forEach(bucket -> {
- if (!bucket.getAggregations().asList().isEmpty()) {
- Aggregation next = bucket.getAggregations().iterator().next();
- if (next instanceof ReverseNested reverseNestedBucket) {
- facet.put(bucket.getKeyAsString(), reverseNestedBucket.getDocCount());
- }
- } else {
- facet.put(bucket.getKeyAsString(), bucket.getDocCount());
- }
- });
- }
-
- public boolean contains(String facetName) {
- return facetsByName.containsKey(facetName);
- }
-
- /**
- * The buckets of the given facet. Null if the facet does not exist
- */
- @CheckForNull
- public LinkedHashMap<String, Long> get(String facetName) {
- return facetsByName.get(facetName);
- }
-
- public Map<String, LinkedHashMap<String, Long>> getAll() {
- return facetsByName;
- }
-
- public Set<String> getBucketKeys(String facetName) {
- LinkedHashMap<String, Long> facet = facetsByName.get(facetName);
- if (facet != null) {
- return facet.keySet();
- }
- return Collections.emptySet();
- }
-
- public Set<String> getNames() {
- return facetsByName.keySet();
- }
-
- @Override
- public String toString() {
- return ReflectionToStringBuilder.toString(this, ToStringStyle.SIMPLE_STYLE);
- }
-
- private LinkedHashMap<String, Long> getOrCreateFacet(String facetName) {
- return facetsByName.computeIfAbsent(facetName, n -> new LinkedHashMap<>());
- }
- }
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