// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.data.imagery;
import java.io.File;
import java.lang.reflect.Constructor;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.TimeUnit;
import org.apache.commons.jcs.access.behavior.ICacheAccess;
import org.openstreetmap.gui.jmapviewer.interfaces.TileLoader;
import org.openstreetmap.gui.jmapviewer.interfaces.TileLoaderListener;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.Version;
import org.openstreetmap.josm.data.cache.BufferedImageCacheEntry;
import org.openstreetmap.josm.data.preferences.StringProperty;
import org.openstreetmap.josm.tools.CheckParameterUtil;
/**
* TileLoaderFactory creating JCS cached TileLoaders
*
* @author Wiktor Niesiobędzki
* @since 8526
*/
public class CachedTileLoaderFactory implements TileLoaderFactory {
/**
* Keeps the cache directory where
*/
public static final StringProperty PROP_TILECACHE_DIR = getTileCacheDir();
private final ICacheAccess<String, BufferedImageCacheEntry> cache;
private Constructor<? extends TileLoader> tileLoaderConstructor;
/**
* @param cache cache instance which will be used by tile loaders created by this tile loader
* @param tileLoaderClass tile loader class that will be created
* @throws IllegalArgumentException if a suitable constructor cannot be found for {@code tileLoaderClass}
*/
public CachedTileLoaderFactory(ICacheAccess<String, BufferedImageCacheEntry> cache, Class<? extends TileLoader> tileLoaderClass) {
CheckParameterUtil.ensureParameterNotNull(cache, "cache");
this.cache = cache;
try {
tileLoaderConstructor = tileLoaderClass.getConstructor(
TileLoaderListener.class,
ICacheAccess.class,
int.class,
int.class,
Map.class);
} catch (NoSuchMethodException | SecurityException e) {
Main.warn(e);
throw new IllegalArgumentException(e);
}
}
private static StringProperty getTileCacheDir() {
String defPath = null;
try {
defPath = new File(Main.pref.getCacheDirectory(), "tiles").getAbsolutePath();
} catch (SecurityException e) {
Main.warn(e);
}
return new StringProperty("imagery.generic.loader.cachedir", defPath);
}
@Override
public TileLoader makeTileLoader(TileLoaderListener listener, Map<String, String> inputHeaders) {
Map<String, String> headers = new ConcurrentHashMap<>();
headers.put("User-Agent", Version.getInstance().getFullAgentString());
headers.put("Accept", "text/html, image/png, image/jpeg, image/gif, */*");
if (inputHeaders != null)
headers.putAll(inputHeaders);
return getLoader(listener, cache,
(int) TimeUnit.SECONDS.toMillis(Main.pref.getInteger("socket.timeout.connect", 15)),
(int) TimeUnit.SECONDS.toMillis(Main.pref.getInteger("socket.timeout.read", 30)),
headers);
}
protected TileLoader getLoader(TileLoaderListener listener, ICacheAccess<String, BufferedImageCacheEntry> cache,
int connectTimeout, int readTimeout, Map<String, String> headers) {
try {
return tileLoaderConstructor.newInstance(
listener,
cache,
connectTimeout,
readTimeout,
headers);
} catch (IllegalArgumentException e) {
Main.warn(e);
throw e;
} catch (ReflectiveOperationException e) {
Main.warn(e);
throw new IllegalArgumentException(e);
}
}
}