org.openstreetmap.gui.jmapviewer

Class OsmTileLoader

java.lang.Object

org.openstreetmap.gui.jmapviewer.OsmTileLoader

All Implemented Interfaces:

TileLoader

public class OsmTileLoader
extends Object
implements TileLoader

A TileLoader implementation that loads tiles from OSM.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private class	OsmTileLoader.OsmTileJob

Field Summary

Fields

Modifier and Type	Field and Description
Map<String,String>	headers Holds the HTTP headers.
private static Executor	jobDispatcher
protected TileLoaderListener	listener
int	timeoutConnect
int	timeoutRead

Constructor Summary

Constructors

Constructor and Description
OsmTileLoader(TileLoaderListener listener)
OsmTileLoader(TileLoaderListener listener, Map<String,String> headers)

Method Summary

Modifier and Type	Method and Description
void	cancelOutstandingTasks() cancels all outstanding tasks in the queue.
TileJob	createTileLoaderJob(Tile tile) A typical implementation of this function should create and return a new TileJob instance that performs the load action.
protected URLConnection	loadTileFromOsm(Tile tile)
protected void	loadTileMetadata(Tile tile, URLConnection urlConn)
protected void	prepareHttpUrlConnection(HttpURLConnection urlConn)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

jobDispatcher

private static final Executor jobDispatcher

headers

public Map<String,String> headers

Holds the HTTP headers. Insert e.g. User-Agent here when default should not be used.

timeoutConnect

public int timeoutConnect

timeoutRead

public int timeoutRead

listener

protected TileLoaderListener listener

Constructor Detail

OsmTileLoader

public OsmTileLoader(TileLoaderListener listener)

OsmTileLoader

public OsmTileLoader(TileLoaderListener listener,
                     Map<String,String> headers)

Method Detail

createTileLoaderJob

public TileJob createTileLoaderJob(Tile tile)

Description copied from interface: TileLoader

A typical implementation of this function should create and return a new TileJob instance that performs the load action.

Specified by:

createTileLoaderJob in interface TileLoader

Parameters:

tile - the tile to be loaded

Returns:

TileJob implementation that performs the desired load action.

loadTileFromOsm

protected URLConnection loadTileFromOsm(Tile tile)
                                 throws IOException

Throws:

IOException

loadTileMetadata

protected void loadTileMetadata(Tile tile,
                                URLConnection urlConn)

prepareHttpUrlConnection

protected void prepareHttpUrlConnection(HttpURLConnection urlConn)

toString

public String toString()

Overrides:

toString in class Object

cancelOutstandingTasks

public void cancelOutstandingTasks()

Description copied from interface: TileLoader

cancels all outstanding tasks in the queue. This should rollback the state of the tiles in the queue to loading = false / loaded = false

Specified by:

cancelOutstandingTasks in interface TileLoader