73 lines
2.4 KiB
Java
73 lines
2.4 KiB
Java
|
/*****************************************************************************************
|
||
|
|
* COPYRIGHT (c), 2007, RAYTHEON COMPANY
|
||
|
|
* ALL RIGHTS RESERVED, An Unpublished Work
|
||
|
|
*
|
||
|
|
* RAYTHEON PROPRIETARY
|
||
|
|
* If the end user is not the U.S. Government or any agency thereof, use
|
||
|
|
* or disclosure of data contained in this source code file is subject to
|
||
|
|
* the proprietary restrictions set forth in the Master Rights File.
|
||
|
|
*
|
||
|
|
* U.S. GOVERNMENT PURPOSE RIGHTS NOTICE
|
||
|
|
* If the end user is the U.S. Government or any agency thereof, this source
|
||
|
|
* code is provided to the U.S. Government with Government Purpose Rights.
|
||
|
|
* Use or disclosure of data contained in this source code file is subject to
|
||
|
|
* the "Government Purpose Rights" restriction in the Master Rights File.
|
||
|
|
*
|
||
|
|
* U.S. EXPORT CONTROLLED TECHNICAL DATA
|
||
|
|
* Use or disclosure of data contained in this source code file is subject to
|
||
|
|
* the export restrictions set forth in the Master Rights File.
|
||
|
|
******************************************************************************************/
|
||
|
|
package com.raytheon.uf.common.geospatial;
|
||
|
|
|
||
|
|
import java.util.TimeZone;
|
||
|
|
|
||
|
|
import com.raytheon.uf.common.geospatial.ISpatialQuery.SearchMode;
|
||
|
|
import com.vividsolutions.jts.geom.Coordinate;
|
||
|
|
import com.vividsolutions.jts.geom.GeometryFactory;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Utility to retrieve local time zone given a lat/lon
|
||
|
|
*
|
||
|
|
* <pre>
|
||
|
|
*
|
||
|
|
* SOFTWARE HISTORY
|
||
|
|
*
|
||
|
|
* Date Ticket# Engineer Description
|
||
|
|
* ------------ ---------- ----------- --------------------------
|
||
|
|
* 02/04/2011 #7175 randerso Initial creation
|
||
|
|
*
|
||
|
|
* </pre>
|
||
|
|
*
|
||
|
|
* @author randerso
|
||
|
|
* @version 1.0
|
||
|
|
*/
|
||
|
|
|
||
|
|
public class LocalTimeZone {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retriev the time zone for a given lat/lon
|
||
|
|
*
|
||
|
|
* @param lonLat
|
||
|
|
* desired point
|
||
|
|
* @return the local time zone
|
||
|
|
*
|
||
|
|
* @throws SpatialException
|
||
|
|
*/
|
||
|
|
public static TimeZone getLocalTimeZone(Coordinate lonLat)
|
||
|
|
throws SpatialException {
|
||
|
|
|
||
|
|
GeometryFactory gf = new GeometryFactory();
|
||
|
|
ISpatialQuery sq = SpatialQueryFactory.create();
|
||
|
|
SpatialQueryResult[] results = sq.query("timezones",
|
||
|
|
new String[] { "unix_time" }, gf.createPoint(lonLat), null,
|
||
|
|
SearchMode.WITHIN);
|
||
|
|
|
||
|
|
if (results.length > 0) {
|
||
|
|
String tz = (String) results[0].attributes.get("unix_time");
|
||
|
|
return TimeZone.getTimeZone(tz);
|
||
|
|
}
|
||
|
|
|
||
|
|
return TimeZone.getTimeZone("GMT");
|
||
|
|
}
|
||
|
|
}
|