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/*
* Southampton University Map App
* Copyright (C) 2011 Christopher Baines
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package net.cbaines.suma;
import java.sql.SQLException;
import java.util.List;
import android.content.Context;
import android.util.Log;
import com.j256.ormlite.android.apptools.OpenHelperManager;
import com.j256.ormlite.dao.Dao;
import com.j256.ormlite.field.DatabaseField;
import com.j256.ormlite.stmt.PreparedQuery;
import com.j256.ormlite.stmt.QueryBuilder;
import com.j256.ormlite.table.DatabaseTable;
/**
* This class represents a bus route (U1, U1N, ..).
*
* @author Christopher Baines <cbaines8@gmail.com>
*
*/
@DatabaseTable(tableName = "busroutes")
public class BusRoute {
final static String ID_FIELD_NAME = "id";
final static String CODE_FIELD_NAME = "code";
final static String LABEL_FIELD_NAME = "label";
@DatabaseField(id = true)
public int id;
/**
* The route code (U1, U1N, ...)
*/
@DatabaseField
public String code;
@DatabaseField(canBeNull = false)
String label;
@DatabaseField(canBeNull = true)
String forwardDirection;
@DatabaseField(canBeNull = true)
String reverseDirection;
BusRoute() {
}
public BusRoute(Integer id, String code, String label, String forwardDirection, String reverseDirection) {
this.id = id.intValue();
this.code = code;
this.label = label;
this.forwardDirection = forwardDirection;
this.reverseDirection = reverseDirection;
}
public BusRoute(Integer id, String code, String label) {
this(id, code, label, null, null);
}
public String toString() {
return code;
}
/**
* Untested?
*
* @param context
* @param stop
* @return
*/
BusStop getBusStopBefore(Context context, BusStop stop, String dir) {
return moveInRoute(context, stop, dir, -1);
}
/**
* Untested?
*
* @param context
* @param stop
* @return
*/
BusStop getStopAfter(Context context, BusStop stop, String dir) {
return moveInRoute(context, stop, dir, 1);
}
/**
* Untested?
*
* @param context
* @param stop
* @param moveAmount
* @return
*/
BusStop moveInRoute(Context context, BusStop stop, String direction, int moveAmount) {
if (moveAmount == 0) {
return stop;
}
DatabaseHelper helper = OpenHelperManager.getHelper(context, DatabaseHelper.class);
if (forwardDirection != null) {
if (direction == null) {
return null;
}
if (forwardDirection.equals(direction)) {
} else if (reverseDirection.equals(direction)) {
moveAmount = -moveAmount;
} else {
Log.e("BusRoute", "Direction (" + direction + ") doesnt match either the forward direction (" + forwardDirection + ") or reverse direction ("
+ reverseDirection + ")");
return null;
}
}
try {
Dao<RouteStops, Integer> routeStopsDao = helper.getRouteStopsDao();
Dao<BusStop, String> busStopDao = helper.getBusStopDao();
QueryBuilder<RouteStops, Integer> routeStopsQueryBuilder = routeStopsDao.queryBuilder();
routeStopsQueryBuilder.where().eq(RouteStops.ROUTE_ID_FIELD_NAME, this.id);
PreparedQuery<RouteStops> routeStopsPreparedQuery = routeStopsQueryBuilder.prepare();
List<RouteStops> routeStopsFound = routeStopsDao.query(routeStopsPreparedQuery);
Log.v("BusRoute", "Found " + routeStopsFound.size() + " stops");
int stopIndex = 0;
for (RouteStops routeStop : routeStopsFound) {
if (routeStop.stop.id.equals(stop.id)) {
stopIndex = routeStop.sequence -1;
}
}
if (moveAmount > 0) {
Log.v("BusStop", "stopIndex " + stopIndex);
int stopWanted = (stopIndex + moveAmount) % (routeStopsFound.size() + 1);
Log.v("BusStop", "stopWanted " + stopWanted);
busStopDao.refresh(routeStopsFound.get(stopWanted).stop);
Log.v("BusRoute",
"Moving forward in direction " + direction + " " + moveAmount + " stops from " + stop + " to " + routeStopsFound.get(stopWanted).stop
+ " in route " + this);
return routeStopsFound.get(stopWanted).stop;
} else {
Log.v("BusStop", "stopIndex " + stopIndex);
int stopWanted = stopIndex + moveAmount;
if (stopWanted < 0) {
stopWanted = routeStopsFound.size() - (Math.abs(stopWanted) % routeStopsFound.size());
}
Log.v("BusStop", "stopWanted " + stopWanted);
busStopDao.refresh(routeStopsFound.get(stopWanted).stop);
Log.v("BusRoute",
"Moving backwards in direction " + direction + " " + moveAmount + " stops from " + stop + " to " + routeStopsFound.get(stopWanted).stop
+ " in route " + this);
return routeStopsFound.get(stopWanted).stop;
}
} catch (SQLException e) {
e.printStackTrace();
}
Log.e("BusRoute", "Error moving in route");
return null;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + id;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
BusRoute other = (BusRoute) obj;
if (id != other.id)
return false;
return true;
}
}
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