gistfile1.java

import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.node.Node;
import org.elasticsearch.node.NodeBuilder;
import org.elasticsearch.search.facet.FacetBuilders;
import org.elasticsearch.search.facet.datehistogram.DateHistogramFacet;
import org.joda.time.DateTimeZone;
import org.joda.time.format.ISODateTimeFormat;

import java.util.concurrent.TimeUnit;

/**
 * Created by IntelliJ IDEA.
 * User: kimchy
 * Date: 2/27/12
 * Time: 10:02 PM
 * To change this template use File | Settings | File Templates.
 */
public class Test {

    public static void main(String[] args) {
        Node node = NodeBuilder.nodeBuilder().local(true)
                .settings(ImmutableSettings.settingsBuilder().put("gateway.type", "none"))
                .node();

        node.client().prepareIndex("test", "type", "1")
                .setSource("date", "2012-02-01T01:00:00")
                .execute().actionGet();
        node.client().admin().indices().prepareRefresh().execute().actionGet();

        SearchResponse searchResponse = node.client().prepareSearch("test")
                .setQuery(QueryBuilders.matchAllQuery())
                        // facet1 will take the offset into account, but return UTC
                .addFacet(FacetBuilders.dateHistogramFacet("facet1").field("date").interval("month").preZone("-08:00"))
                        // facet 2 will take offset into account, but also return it with an offset
                .addFacet(FacetBuilders.dateHistogramFacet("facet2").field("date").interval("month").preZone("-08:00").postZone("-08:00"))
                .execute().actionGet();

        DateHistogramFacet facet = searchResponse.facets().facet("facet1");
        long utcExpected = ISODateTimeFormat.dateOptionalTimeParser().withZone(DateTimeZone.UTC).parseMillis("2012-01-01T00:00:00");
        System.out.println("UTC: Expected: " + utcExpected + ", got: " + facet.getEntries().get(0).time());
        facet = searchResponse.facets().facet("facet2");
        long offsetExpected = utcExpected - TimeUnit.HOURS.toMillis(8);
        System.out.println("Offset: Expected: " + offsetExpected + ", got: " + facet.getEntries().get(0).time());

        node.close();
    }
}