TimeRangeDataStatistics.java

package mil.nga.giat.geowave.core.geotime.store.statistics;

import java.util.Date;

import net.sf.json.JSONException;
import net.sf.json.JSONObject;

import mil.nga.giat.geowave.core.geotime.store.query.TemporalRange;
import mil.nga.giat.geowave.core.index.ByteArrayId;
import mil.nga.giat.geowave.core.store.adapter.statistics.NumericRangeDataStatistics;

abstract public class TimeRangeDataStatistics<T> extends
		NumericRangeDataStatistics<T>
{
	public final static ByteArrayId STATS_TYPE = new ByteArrayId(
			"TIME_RANGE");

	protected TimeRangeDataStatistics() {
		super();
	}

	public TimeRangeDataStatistics(
			final ByteArrayId dataAdapterId,
			final String fieldId ) {
		super(
				dataAdapterId,
				composeId(
						STATS_TYPE.getString(),
						fieldId));
	}

	public TemporalRange asTemporalRange() {
		return new TemporalRange(
				new Date(
						(long) this.getMin()),
				new Date(
						(long) this.getMax()));
	}

	/**
	 * Convert Time Range statistics to a JSON object
	 */

	public JSONObject toJSONObject()
			throws JSONException {
		JSONObject jo = new JSONObject();
		jo.put(
				"type",
				STATS_TYPE.getString());

		jo.put(
				"statisticsID",
				getStatisticsId().getString());

		if (!isSet()) {
			jo.put(
					"range",
					"No Values");
		}
		else {
			jo.put(
					"range_min",
					new Date(
							(long) this.getMin()));
			jo.put(
					"range_max",
					new Date(
							(long) this.getMax()));
		}

		return jo;
	}

}