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ESGeneratedQueryContext.java
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ESGeneratedQueryContext.java
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package org.graylog.plugins.enterprise.search.elasticsearch;
import com.google.common.base.MoreObjects;
import com.google.common.collect.Maps;
import io.searchbox.core.search.aggregation.Aggregation;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.search.aggregations.AggregationBuilder;
import org.elasticsearch.search.aggregations.AggregationBuilders;
import org.elasticsearch.search.aggregations.bucket.filter.FilterAggregationBuilder;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.graylog.plugins.enterprise.search.Filter;
import org.graylog.plugins.enterprise.search.SearchType;
import org.graylog.plugins.enterprise.search.engine.GeneratedQueryContext;
import org.graylog.plugins.enterprise.search.searchtypes.aggregation.AggregationSpec;
import org.graylog.plugins.enterprise.search.util.UniqueNamer;
import org.jooq.lambda.tuple.Tuple;
import org.jooq.lambda.tuple.Tuple2;
import java.util.Collection;
import java.util.IdentityHashMap;
import java.util.Map;
import java.util.Optional;
public class ESGeneratedQueryContext implements GeneratedQueryContext {
private final ElasticsearchBackend elasticsearchBackend;
private SearchSourceBuilder ssb;
// do _NOT_ turn this into a regular hashmap!
private IdentityHashMap<AggregationSpec, Tuple2<String, Class<? extends Aggregation>>> aggResultTypes = Maps.newIdentityHashMap();
private Map<Object, Object> contextMap = Maps.newHashMap();
private final UniqueNamer uniqueNamer = new UniqueNamer("agg-");
public ESGeneratedQueryContext(ElasticsearchBackend elasticsearchBackend, SearchSourceBuilder ssb) {
this.elasticsearchBackend = elasticsearchBackend;
this.ssb = ssb;
}
public SearchSourceBuilder searchSourceBuilder() {
return ssb;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this)
.add("elasticsearch query", ssb)
.toString();
}
public void recordAggregationType(AggregationSpec aggregationSpec, String name, Class<? extends Aggregation> aggregationClass) {
final Tuple2<String, Class<? extends Aggregation>> tuple = Tuple.tuple(name, aggregationClass);
aggResultTypes.put(aggregationSpec, tuple);
}
public Tuple2<String, Class<? extends Aggregation>> typeForAggregationSpec(AggregationSpec aggregationSpec) {
return aggResultTypes.get(aggregationSpec);
}
public Map<Object, Object> contextMap() {
return contextMap;
}
public String nextName() {
return uniqueNamer.nextName();
}
public Optional<QueryBuilder> generateFilterClause(Filter filter) {
return elasticsearchBackend.generateFilterClause(filter);
}
public void addFilteredAggregation(AggregationBuilder builder, SearchType searchType) {
final Optional<QueryBuilder> filterClause = generateFilterClause(searchType.filter());
if (filterClause.isPresent()) {
builder = AggregationBuilders.filter("filtered-" + searchType.id(), filterClause.get())
.subAggregation(builder);
}
ssb.aggregation(builder);
}
public void addFilteredAggregations(Collection<AggregationBuilder> builders, SearchType searchType) {
final Optional<QueryBuilder> filterClause = generateFilterClause(searchType.filter());
if (filterClause.isPresent()) {
final FilterAggregationBuilder filter = AggregationBuilders.filter("filtered-" + searchType.id(), filterClause.get());
builders.forEach(filter::subAggregation);
ssb.aggregation(filter);
} else {
builders.forEach(ssb::aggregation);
}
}
}