7 |
import java.sql.Statement; |
import java.sql.Statement; |
8 |
import java.util.ArrayList; |
import java.util.ArrayList; |
9 |
import java.util.List; |
import java.util.List; |
10 |
|
import java.util.logging.Logger; |
|
import com.sun.istack.logging.Logger; |
|
11 |
|
|
12 |
public class StationDAO { |
public class StationDAO { |
13 |
final static int LOCATION_LIMIT = 5; |
final static int LOCATION_LIMIT = 5; |
14 |
static final Logger logger = Logger.getLogger(StationDAO.class); |
static final Logger logger = Logger.getLogger(StationDAO.class.getName()); |
15 |
|
|
16 |
|
|
17 |
private StationBean convertSingleRow(ResultSet res) throws SQLException { |
private StationBean convertSingleRow(ResultSet res) throws SQLException { |
18 |
StationBean station = new StationBean(); |
StationBean station = new StationBean(); |
106 |
return result; |
return result; |
107 |
} |
} |
108 |
|
|
109 |
//the "hack" with max 0.5 degrees latitude and 0.9 degrees longitude is only valid since we only service danish trains, |
//the "hack" with max 0.4 degrees latitude and 0.75 degrees longitude is only valid since we only service danish trains, |
110 |
// in denmark 0.5dg latitude ~ 55km, 0.9dg longitude ~ 57km |
// in denmark 0.4dg latitude ~ 44km, 0.75dg longitude ~ 47km |
111 |
|
|
112 |
// the ultra fast method (and only slightly inaccurate as long as we only cover a limited geographically area) |
// the ultra fast method (and only slightly inaccurate as long as we only cover a limited geographically area) |
113 |
// is using an aproximation of the length of 1 latitude degree and 1 longitude degree and just use pythagoras to |
// is using an aproximation of the length of 1 latitude degree and 1 longitude degree and just use pythagoras to |
116 |
|
|
117 |
public List<StationBean> getByLocationWorker(double latitude, double longitude, boolean geolimit) throws SQLException { |
public List<StationBean> getByLocationWorker(double latitude, double longitude, boolean geolimit) throws SQLException { |
118 |
|
|
119 |
String limitExpression = geolimit == true ? "AND abs(latitude-?)<0.5 AND abs(longitude-?)<0.9 " : ""; |
String limitExpression = geolimit == true ? "AND abs(latitude-?)<0.4 AND abs(longitude-?)<0.75 " : ""; |
120 |
|
|
121 |
String SQL = "SELECT id,name,latitude,longitude,stationcode_fjrn,stationcode_stog, stationcode_metro, address, " + |
String SQL = "SELECT id,name,latitude,longitude,stationcode_fjrn,stationcode_stog, stationcode_metro, address, " + |
122 |
"earth_distance( earth_coord, ll_to_earth(?,?))::int AS calcdist " + |
"earth_distance( earth_coord, ll_to_earth(?,?))::int AS calcdist " + |