/*
* (C) Copyright 2014 Nuxeo SA (http://nuxeo.com/) and others.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Contributors:
* bdelbosc
*/
package org.nuxeo.elasticsearch.aggregate;
import static org.nuxeo.elasticsearch.ElasticSearchConstants.AGG_FORMAT_PROP;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import org.codehaus.jackson.annotate.JsonIgnore;
import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.query.RangeQueryBuilder;
import org.elasticsearch.search.aggregations.AggregationBuilders;
import org.elasticsearch.search.aggregations.bucket.MultiBucketsAggregation;
import org.elasticsearch.search.aggregations.bucket.range.Range;
import org.elasticsearch.search.aggregations.bucket.range.date.DateRangeBuilder;
import org.joda.time.DateTime;
import org.nuxeo.ecm.core.api.DocumentModel;
import org.nuxeo.ecm.platform.query.api.AggregateDefinition;
import org.nuxeo.ecm.platform.query.api.AggregateRangeDateDefinition;
import org.nuxeo.ecm.platform.query.core.BucketRangeDate;
/**
* @since 6.0
*/
public class DateRangeAggregate extends AggregateEsBase<BucketRangeDate> {
public DateRangeAggregate(AggregateDefinition definition, DocumentModel searchDocument) {
super(definition, searchDocument);
}
@JsonIgnore
@Override
public DateRangeBuilder getEsAggregate() {
DateRangeBuilder ret = AggregationBuilders.dateRange(getId()).field(getField());
for (AggregateRangeDateDefinition range : getDateRanges()) {
if (range.getFromAsString() != null) {
if (range.getToAsString() != null) {
ret.addRange(range.getKey(), range.getFromAsString(), range.getToAsString());
} else {
ret.addUnboundedFrom(range.getKey(), range.getFromAsString());
}
} else if (range.getToAsString() != null) {
ret.addUnboundedTo(range.getKey(), range.getToAsString());
}
}
Map<String, String> props = getProperties();
if (props.containsKey(AGG_FORMAT_PROP)) {
ret.format(props.get(AGG_FORMAT_PROP));
}
return ret;
}
@JsonIgnore
@Override
public QueryBuilder getEsFilter() {
if (getSelection().isEmpty()) {
return null;
}
BoolQueryBuilder ret = QueryBuilders.boolQuery();
for (AggregateRangeDateDefinition range : getDateRanges()) {
if (getSelection().contains(range.getKey())) {
RangeQueryBuilder rangeFilter = QueryBuilders.rangeQuery(getField());
if (range.getFromAsString() != null) {
rangeFilter.gte(range.getFromAsString());
}
if (range.getToAsString() != null) {
rangeFilter.lt(range.getToAsString());
}
ret.should(rangeFilter);
}
}
return ret;
}
@JsonIgnore
@Override
public void parseEsBuckets(Collection<? extends MultiBucketsAggregation.Bucket> buckets) {
List<BucketRangeDate> nxBuckets = new ArrayList<>(buckets.size());
for (MultiBucketsAggregation.Bucket bucket : buckets) {
Range.Bucket rangeBucket = (Range.Bucket) bucket;
nxBuckets.add(new BucketRangeDate(bucket.getKeyAsString(), (DateTime) rangeBucket.getFrom(),
(DateTime) rangeBucket.getTo(), rangeBucket.getDocCount()));
}
Collections.sort(nxBuckets, new BucketRangeDateComparator());
this.buckets = nxBuckets;
}
protected class BucketRangeDateComparator implements Comparator<BucketRangeDate> {
@Override
public int compare(BucketRangeDate arg0, BucketRangeDate arg1) {
return definition.getAggregateDateRangeDefinitionOrderMap().get(arg0.getKey()).compareTo(
definition.getAggregateDateRangeDefinitionOrderMap().get(arg1.getKey()));
}
}
}