*
* 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; version 2 of the License.
+ * 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
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
-package org.altusmetrum.altoslib_9;
+package org.altusmetrum.altoslib_13;
import java.io.*;
import java.net.*;
int status;
- public int status() {
+ private static File map_file(AltosLatLon center, int zoom, int maptype, int px_size, int scale) {
+ double lat = center.lat;
+ double lon = center.lon;
+ char chlat = lat < 0 ? 'S' : 'N';
+ char chlon = lon < 0 ? 'W' : 'E';
+
+ if (lat < 0) lat = -lat;
+ if (lon < 0) lon = -lon;
+ String maptype_string = String.format("%s-", AltosMap.maptype_names[maptype]);
+ String format_string;
+ if (maptype == AltosMap.maptype_hybrid || maptype == AltosMap.maptype_satellite || maptype == AltosMap.maptype_terrain)
+ format_string = "jpg";
+ else
+ format_string = "png";
+ return new File(AltosPreferences.mapdir(),
+ String.format("map-%c%.6f,%c%.6f-%s%d%s.%s",
+ chlat, lat, chlon, lon, maptype_string, zoom, scale == 1 ? "" : String.format("-%d", scale), format_string));
+ }
+
+ public static String google_maps_api_key = null;
+
+ private static String google_map_url(AltosLatLon center, int zoom, int maptype, int px_size, int scale, String format_string) {
+ return String.format("http://maps.google.com/maps/api/staticmap?center=%.6f,%.6f&zoom=%d&size=%dx%d&scale=%d&sensor=false&maptype=%s&format=%s&key=%s",
+ center.lat, center.lon, zoom, px_size, px_size, scale,
+ AltosMap.maptype_names[maptype], format_string, google_maps_api_key);
+ }
+
+ private static String altos_map_url(AltosLatLon center, int zoom, int maptype, int px_size, int scale, String format_string) {
+ return String.format("https://maps.altusmetrum.org/cgi-bin/altos-map?lat=%.6f&lon=%.6f&zoom=%d",
+ center.lat, center.lon, zoom);
+ }
+
+ private static String map_url(AltosLatLon center, int zoom, int maptype, int px_size, int scale) {
+ String format_string;
+
+ if (maptype == AltosMap.maptype_hybrid || maptype == AltosMap.maptype_satellite || maptype == AltosMap.maptype_terrain)
+ format_string = "jpg";
+ else
+ format_string = "png32";
+
+ for (int s = 1; s < scale; s <<= 1)
+ zoom--;
+
+ px_size /= scale;
+
+ if (google_maps_api_key != null)
+ return google_map_url(center, zoom, maptype, px_size, scale, format_string);
+ else
+ return altos_map_url(center, zoom, maptype, px_size, scale, format_string);
+ }
+
+ public synchronized int status() {
return status;
}
public synchronized void add_listener(AltosMapStoreListener listener) {
if (!listeners.contains(listener))
listeners.add(listener);
+ listener.notify_store(this, status);
}
public synchronized void remove_listener(AltosMapStoreListener listener) {
listener.notify_store(this, status);
}
- static Object forbidden_lock = new Object();
- static long forbidden_time;
- static boolean forbidden_set;
-
private int fetch_url() {
URL u;
return AltosMapTile.bad_request;
}
- byte[] data;
+ byte[] data = null;
URLConnection uc = null;
- try {
- uc = u.openConnection();
- String type = uc.getContentType();
- int contentLength = uc.getContentLength();
- if (uc instanceof HttpURLConnection) {
- int response = ((HttpURLConnection) uc).getResponseCode();
- switch (response) {
- case HttpURLConnection.HTTP_FORBIDDEN:
- case HttpURLConnection.HTTP_PAYMENT_REQUIRED:
- case HttpURLConnection.HTTP_UNAUTHORIZED:
- synchronized (forbidden_lock) {
- forbidden_time = System.nanoTime();
- forbidden_set = true;
+
+ int status = AltosMapTile.failed;
+ int tries = 0;
+
+ while (tries < 10 && status != AltosMapTile.fetched) {
+ try {
+ uc = u.openConnection();
+ String type = uc.getContentType();
+ int contentLength = uc.getContentLength();
+ if (uc instanceof HttpURLConnection) {
+ int response = ((HttpURLConnection) uc).getResponseCode();
+ switch (response) {
+ case HttpURLConnection.HTTP_FORBIDDEN:
+ case HttpURLConnection.HTTP_PAYMENT_REQUIRED:
+ case HttpURLConnection.HTTP_UNAUTHORIZED:
return AltosMapTile.forbidden;
}
}
- }
- InputStream in = new BufferedInputStream(uc.getInputStream());
- int bytesRead = 0;
- int offset = 0;
- data = new byte[contentLength];
- while (offset < contentLength) {
- bytesRead = in.read(data, offset, data.length - offset);
- if (bytesRead == -1)
- break;
- offset += bytesRead;
- }
- in.close();
+ InputStream in = new BufferedInputStream(uc.getInputStream());
+ int bytesRead = 0;
+ int offset = 0;
+ data = new byte[contentLength];
+ while (offset < contentLength) {
+ bytesRead = in.read(data, offset, data.length - offset);
+ if (bytesRead == -1)
+ break;
+ offset += bytesRead;
+ }
+ in.close();
- if (offset != contentLength)
- return AltosMapTile.failed;
+ if (offset == contentLength)
+ status = AltosMapTile.fetched;
+ else
+ status = AltosMapTile.failed;
- } catch (IOException e) {
- return AltosMapTile.failed;
+ } catch (IOException e) {
+ status = AltosMapTile.failed;
+ }
+
+ if (status != AltosMapTile.fetched) {
+ try {
+ Thread.sleep(100);
+ } catch (InterruptedException ie) {
+ }
+ tries++;
+ System.out.printf("Fetch failed, retrying %d\n", tries);
+ }
}
+ if (status != AltosMapTile.fetched)
+ return status;
+
try {
FileOutputStream out = new FileOutputStream(file);
- out.write(data);
+ if (data != null)
+ out.write(data);
out.flush();
out.close();
} catch (FileNotFoundException e) {
file.delete();
return AltosMapTile.bad_request;
}
- return AltosMapTile.success;
+ return AltosMapTile.fetched;
}
static Object fetch_lock = new Object();
- static final long forbidden_interval = 60l * 1000l * 1000l * 1000l;
- static final long google_maps_ratelimit_ms = 1200;
-
- static Object loader_lock = new Object();
+ static Object fetcher_lock = new Object();
static LinkedList<AltosMapStore> waiting = new LinkedList<AltosMapStore>();
static LinkedList<AltosMapStore> running = new LinkedList<AltosMapStore>();
- static final int concurrent_loaders = 128;
+ static int concurrent_fetchers() {
+ if (google_maps_api_key == null)
+ return 16;
+ return 128;
+ }
- static void start_loaders() {
- while (!waiting.isEmpty() && running.size() < concurrent_loaders) {
+ static void start_fetchers() {
+ while (!waiting.isEmpty() && running.size() < concurrent_fetchers()) {
AltosMapStore s = waiting.remove();
running.add(s);
- Thread lt = s.make_loader_thread();
+ Thread lt = s.make_fetcher_thread();
lt.start();
}
}
- void finish_loader() {
- synchronized(loader_lock) {
+ void finish_fetcher() {
+ synchronized(fetcher_lock) {
running.remove(this);
- start_loaders();
+ start_fetchers();
}
}
- void add_loader() {
- synchronized(loader_lock) {
+ void add_fetcher() {
+ synchronized(fetcher_lock) {
waiting.add(this);
- start_loaders();
+ start_fetchers();
}
}
- class loader implements Runnable {
+ class fetcher implements Runnable {
public void run() {
try {
if (file.exists()) {
- notify_listeners(AltosMapTile.success);
+ notify_listeners(AltosMapTile.fetched);
return;
}
- synchronized(forbidden_lock) {
- if (forbidden_set && (System.nanoTime() - forbidden_time) < forbidden_interval) {
- notify_listeners(AltosMapTile.forbidden);
- return;
- }
- }
-
int new_status;
- if (!AltosVersion.has_google_maps_api_key()) {
- synchronized (fetch_lock) {
- long startTime = System.nanoTime();
- new_status = fetch_url();
- if (new_status == AltosMapTile.success) {
- long duration_ms = (System.nanoTime() - startTime) / 1000000;
- if (duration_ms < google_maps_ratelimit_ms) {
- try {
- Thread.sleep(google_maps_ratelimit_ms - duration_ms);
- } catch (InterruptedException e) {
- Thread.currentThread().interrupt();
- }
- }
- }
- }
- } else {
- new_status = fetch_url();
- }
+ new_status = fetch_url();
+
notify_listeners(new_status);
} finally {
- finish_loader();
+ finish_fetcher();
}
}
}
- private Thread make_loader_thread() {
- return new Thread(new loader());
+ private Thread make_fetcher_thread() {
+ return new Thread(new fetcher());
}
- private void load() {
- add_loader();
+ private void fetch() {
+ add_fetcher();
}
private AltosMapStore (String url, File file) {
this.file = file;
if (file.exists())
- status = AltosMapTile.success;
+ status = AltosMapTile.fetched;
else {
- status = AltosMapTile.loading;
- load();
+ status = AltosMapTile.fetching;
+ fetch();
}
}
static HashMap<String,AltosMapStore> stores = new HashMap<String,AltosMapStore>();
- public static AltosMapStore get(String url, File file) {
+ public static AltosMapStore get(AltosLatLon center, int zoom, int maptype, int px_size, int scale) {
+ String url = map_url(center, zoom, maptype, px_size, scale);
+
AltosMapStore store;
synchronized(stores) {
if (stores.containsKey(url)) {
store = stores.get(url);
} else {
- store = new AltosMapStore(url, file);
+ store = new AltosMapStore(url, map_file(center, zoom, maptype, px_size, scale));
stores.put(url, store);
}
}
return store;
}
+
}
projects / fw / altos / blobdiff