diff options
| author | Anthony Towns <aj@erisian.com.au> | 2014-01-20 19:38:21 +1000 |
|---|---|---|
| committer | Anthony Towns <aj@erisian.com.au> | 2014-01-20 19:38:21 +1000 |
| commit | 7a8551fe8e5f0a90cbc494842715a96f08c11900 (patch) | |
| tree | 305d691433aebad480451b38e67acee5e2e0b1b9 | |
| parent | 0faa098f05d43eefc1fa54462401171fca5034cb (diff) | |
altosui: rate limit map downloads
| -rw-r--r-- | altosui/AltosSiteMapCache.java | 15 | ||||
| -rw-r--r-- | altosui/AltosSiteMapPreload.java | 2 |
2 files changed, 16 insertions, 1 deletions
diff --git a/altosui/AltosSiteMapCache.java b/altosui/AltosSiteMapCache.java index 40c8ff6b..03dc3cf5 100644 --- a/altosui/AltosSiteMapCache.java +++ b/altosui/AltosSiteMapCache.java @@ -25,8 +25,13 @@ import java.net.URL; import java.net.URLConnection; public class AltosSiteMapCache extends JLabel { + static final long google_maps_ratelimit_ms = 1200; + // Google limits static map queries to 50 per minute per IP, so + // each query should take at least 1.2 seconds. + public static boolean fetchMap(File file, String url) { URL u; + long startTime = System.nanoTime(); try { u = new URL(url); @@ -70,6 +75,16 @@ public class AltosSiteMapCache extends JLabel { } return false; } + + 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(); + } + } + return true; } diff --git a/altosui/AltosSiteMapPreload.java b/altosui/AltosSiteMapPreload.java index 7112fed6..66399557 100644 --- a/altosui/AltosSiteMapPreload.java +++ b/altosui/AltosSiteMapPreload.java @@ -213,7 +213,7 @@ public class AltosSiteMapPreload extends AltosUIDialog implements ActionListener AltosMapPos lat; AltosMapPos lon; - final static int radius = 3; + final static int radius = 5; final static int width = (radius * 2 + 1); final static int height = (radius * 2 + 1); |