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* http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.search.aggregations.metrics;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.common.geo.GeoPoint;
import org.elasticsearch.search.aggregations.InternalAggregation;
import org.elasticsearch.search.aggregations.bucket.geogrid.GeoHashGrid;
import org.elasticsearch.search.aggregations.bucket.global.Global;
import org.elasticsearch.search.aggregations.metrics.geocentroid.GeoCentroid;
import org.elasticsearch.test.ESIntegTestCase;
import java.util.List;
import static org.elasticsearch.index.query.QueryBuilders.matchAllQuery;
import static org.elasticsearch.search.aggregations.AggregationBuilders.geoCentroid;
import static org.elasticsearch.search.aggregations.AggregationBuilders.geohashGrid;
import static org.elasticsearch.search.aggregations.AggregationBuilders.global;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertSearchResponse;
import static org.hamcrest.Matchers.closeTo;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.notNullValue;
import static org.hamcrest.Matchers.sameInstance;
/**
* Integration Test for GeoCentroid metric aggregator
*/
@ESIntegTestCase.SuiteScopeTestCase
public class GeoCentroidIT extends AbstractGeoTestCase {
private static final String aggName = "geoCentroid";
public void testEmptyAggregation() throws Exception {
SearchResponse response = client().prepareSearch(EMPTY_IDX_NAME)
.setQuery(matchAllQuery())
.addAggregation(geoCentroid(aggName).field(SINGLE_VALUED_FIELD_NAME))
.execute().actionGet();
assertSearchResponse(response);
GeoCentroid geoCentroid = response.getAggregations().get(aggName);
assertThat(response.getHits().getTotalHits(), equalTo(0L));
assertThat(geoCentroid, notNullValue());
assertThat(geoCentroid.getName(), equalTo(aggName));
GeoPoint centroid = geoCentroid.centroid();
assertThat(centroid, equalTo(null));
assertEquals(0, geoCentroid.count());
}
public void testUnmapped() throws Exception {
SearchResponse response = client().prepareSearch(UNMAPPED_IDX_NAME)
.addAggregation(geoCentroid(aggName).field(SINGLE_VALUED_FIELD_NAME))
.execute().actionGet();
assertSearchResponse(response);
GeoCentroid geoCentroid = response.getAggregations().get(aggName);
assertThat(geoCentroid, notNullValue());
assertThat(geoCentroid.getName(), equalTo(aggName));
GeoPoint centroid = geoCentroid.centroid();
assertThat(centroid, equalTo(null));
assertEquals(0, geoCentroid.count());
}
public void testPartiallyUnmapped() throws Exception {
SearchResponse response = client().prepareSearch(IDX_NAME, UNMAPPED_IDX_NAME)
.addAggregation(geoCentroid(aggName).field(SINGLE_VALUED_FIELD_NAME))
.execute().actionGet();
assertSearchResponse(response);
GeoCentroid geoCentroid = response.getAggregations().get(aggName);
assertThat(geoCentroid, notNullValue());
assertThat(geoCentroid.getName(), equalTo(aggName));
GeoPoint centroid = geoCentroid.centroid();
assertThat(centroid.lat(), closeTo(singleCentroid.lat(), GEOHASH_TOLERANCE));
assertThat(centroid.lon(), closeTo(singleCentroid.lon(), GEOHASH_TOLERANCE));
assertEquals(numDocs, geoCentroid.count());
}
public void testSingleValuedField() throws Exception {
SearchResponse response = client().prepareSearch(IDX_NAME)
.setQuery(matchAllQuery())
.addAggregation(geoCentroid(aggName).field(SINGLE_VALUED_FIELD_NAME))
.execute().actionGet();
assertSearchResponse(response);
GeoCentroid geoCentroid = response.getAggregations().get(aggName);
assertThat(geoCentroid, notNullValue());
assertThat(geoCentroid.getName(), equalTo(aggName));
GeoPoint centroid = geoCentroid.centroid();
assertThat(centroid.lat(), closeTo(singleCentroid.lat(), GEOHASH_TOLERANCE));
assertThat(centroid.lon(), closeTo(singleCentroid.lon(), GEOHASH_TOLERANCE));
assertEquals(numDocs, geoCentroid.count());
}
public void testSingleValueFieldGetProperty() throws Exception {
SearchResponse response = client().prepareSearch(IDX_NAME)
.setQuery(matchAllQuery())
.addAggregation(global("global").subAggregation(geoCentroid(aggName).field(SINGLE_VALUED_FIELD_NAME)))
.execute().actionGet();
assertSearchResponse(response);
Global global = response.getAggregations().get("global");
assertThat(global, notNullValue());
assertThat(global.getName(), equalTo("global"));
assertThat(global.getDocCount(), equalTo((long) numDocs));
assertThat(global.getAggregations(), notNullValue());
assertThat(global.getAggregations().asMap().size(), equalTo(1));
GeoCentroid geoCentroid = global.getAggregations().get(aggName);
assertThat(geoCentroid, notNullValue());
assertThat(geoCentroid.getName(), equalTo(aggName));
assertThat((GeoCentroid) ((InternalAggregation)global).getProperty(aggName), sameInstance(geoCentroid));
GeoPoint centroid = geoCentroid.centroid();
assertThat(centroid.lat(), closeTo(singleCentroid.lat(), GEOHASH_TOLERANCE));
assertThat(centroid.lon(), closeTo(singleCentroid.lon(), GEOHASH_TOLERANCE));
assertThat(((GeoPoint) ((InternalAggregation)global).getProperty(aggName + ".value")).lat(),
closeTo(singleCentroid.lat(), GEOHASH_TOLERANCE));
assertThat(((GeoPoint) ((InternalAggregation)global).getProperty(aggName + ".value")).lon(),
closeTo(singleCentroid.lon(), GEOHASH_TOLERANCE));
assertThat((double) ((InternalAggregation)global).getProperty(aggName + ".lat"), closeTo(singleCentroid.lat(), GEOHASH_TOLERANCE));
assertThat((double) ((InternalAggregation)global).getProperty(aggName + ".lon"), closeTo(singleCentroid.lon(), GEOHASH_TOLERANCE));
assertEquals(numDocs, (long) ((InternalAggregation) global).getProperty(aggName + ".count"));
}
public void testMultiValuedField() throws Exception {
SearchResponse searchResponse = client().prepareSearch(IDX_NAME)
.setQuery(matchAllQuery())
.addAggregation(geoCentroid(aggName).field(MULTI_VALUED_FIELD_NAME))
.execute().actionGet();
assertSearchResponse(searchResponse);
GeoCentroid geoCentroid = searchResponse.getAggregations().get(aggName);
assertThat(geoCentroid, notNullValue());
assertThat(geoCentroid.getName(), equalTo(aggName));
GeoPoint centroid = geoCentroid.centroid();
assertThat(centroid.lat(), closeTo(multiCentroid.lat(), GEOHASH_TOLERANCE));
assertThat(centroid.lon(), closeTo(multiCentroid.lon(), GEOHASH_TOLERANCE));
assertEquals(2 * numDocs, geoCentroid.count());
}
public void testSingleValueFieldAsSubAggToGeohashGrid() throws Exception {
SearchResponse response = client().prepareSearch(HIGH_CARD_IDX_NAME)
.addAggregation(geohashGrid("geoGrid").field(SINGLE_VALUED_FIELD_NAME)
.subAggregation(geoCentroid(aggName).field(SINGLE_VALUED_FIELD_NAME)))
.execute().actionGet();
assertSearchResponse(response);
GeoHashGrid grid = response.getAggregations().get("geoGrid");
assertThat(grid, notNullValue());
assertThat(grid.getName(), equalTo("geoGrid"));
List<? extends GeoHashGrid.Bucket> buckets = grid.getBuckets();
for (GeoHashGrid.Bucket cell : buckets) {
String geohash = cell.getKeyAsString();
GeoPoint expectedCentroid = expectedCentroidsForGeoHash.get(geohash);
GeoCentroid centroidAgg = cell.getAggregations().get(aggName);
assertThat("Geohash " + geohash + " has wrong centroid latitude ", expectedCentroid.lat(),
closeTo(centroidAgg.centroid().lat(), GEOHASH_TOLERANCE));
assertThat("Geohash " + geohash + " has wrong centroid longitude", expectedCentroid.lon(),
closeTo(centroidAgg.centroid().lon(), GEOHASH_TOLERANCE));
}
}
}