org.placelab.mapper
Class MapLoader

java.lang.Object
  org.placelab.mapper.MapLoader

Direct Known Subclasses:

JDBMQuickMapLoader, MapSourceLoader

public class MapLoader

extends java.lang.Object

This utility class reloads the persistent Beacon cache from a file or URL. This will completely erase the existing AP cache and then load the new access points.

Field Summary

protected Mapper

mapper

Constructor Summary

MapLoader()
Creates a new map loader that will use the default database name

MapLoader(Mapper m)
Creates a new map loader that will name its database dbName.

Method Summary

void	createNewMap() Deletes all the known Beacons and returns how many elements were in the map.
Mapper	getMapper()
int	loadMap(java.io.InputStream is) Load up a new map from the given inputstream.
static void	main(java.lang.String[] args) Pass in either a URL or a file with a set of known APs as an argument to this program.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

mapper

protected Mapper mapper

Constructor Detail

MapLoader

public MapLoader(Mapper m)

Creates a new map loader that will name its database dbName. There can be multiple simultaneous AP cache's provided they have differnt names.

MapLoader

public MapLoader()
          throws java.io.IOException

Creates a new map loader that will use the default database name

Method Detail

getMapper

public Mapper getMapper()

main

public static void main(java.lang.String[] args)

Pass in either a URL or a file with a set of known APs as an argument to this program. The current public map should always be available at http://data.placelab.org/do-retrieve.php

createNewMap

public void createNewMap()

Deletes all the known Beacons and returns how many elements were in the map.

loadMap

public int loadMap(java.io.InputStream is)
            throws java.io.IOException

Load up a new map from the given inputstream. Returns the number of new Beacons loaded

Throws:

java.io.IOException