Changeset 32007 in osm for applications/viewer/jmapviewer/src/org/openstreetmap

Timestamp:

2016-01-19T00:46:03+01:00 (9 years ago)

Author:

wiktorn

Message:

Clear the queue of JMapViewer when panning map and switch to 3-threaded
downloader on default.

See: #josm12396

File:

• applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/OsmTileLoader.java (modified) (3 diffs)

applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/OsmTileLoader.java

@@ -10 +10 @@
 import java.util.Map;
 import java.util.Map.Entry;
-import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadPoolExecutor;
 
 import org.openstreetmap.gui.jmapviewer.interfaces.TileJob;
@@ -23 +23 @@
  */
 public class OsmTileLoader implements TileLoader {
-    private static final Executor jobDispatcher = Executors.newSingleThreadExecutor();
+    private static final ThreadPoolExecutor jobDispatcher = (ThreadPoolExecutor) Executors.newFixedThreadPool(3);
 
     private final class OsmTileJob implements TileJob {
@@ -184 +184 @@
     @Override
     public void cancelOutstandingTasks() {
-        // intentionally left empty - OsmTileLoader doesn't maintain queue
+        jobDispatcher.getQueue().clear();
+    }
+
+    /**
+     * Sets the maximum number of concurrent connections the tile loader will do
+     * @param num number of conncurent connections
+     */
+    public static void setConcurrentConnections(int num) {
+        jobDispatcher.setMaximumPoolSize(num);
     }
 }