/** This is a functor class of type Runnable. The run method is the encapsulated function. */
@Override
public void run() {
onTileLoaderInit();
MapTileRequestState state;
Drawable result = null;
while ((state = nextTile()) != null) {
if (DEBUG_TILE_PROVIDERS) {
logger.debug("TileLoader.run() processing next tile: " + state.getMapTile());
}
try {
result = null;
result = loadTile(state);
} catch (final CantContinueException e) {
logger.info("Tile loader can't continue: " + state.getMapTile(), e);
clearQueue();
} catch (final Throwable e) {
logger.error("Error downloading tile: " + state.getMapTile(), e);
}
if (result == null) {
tileLoadedFailed(state);
} else if (ExpirableBitmapDrawable.isDrawableExpired(result)) {
tileLoadedExpired(state, result);
} else {
tileLoaded(state, result);
}
}
onTileLoaderShutdown();
}
public void loadMapTileAsync(final MapTileRequestState pState) {
synchronized (mQueueLockObject) {
if (DEBUG_TILE_PROVIDERS) {
logger.debug(
"MapTileModuleProviderBase.loadMaptileAsync() on provider: "
+ getName()
+ " for tile: "
+ pState.getMapTile());
if (mPending.containsKey(pState.getMapTile()))
logger.debug(
"MapTileModuleProviderBase.loadMaptileAsync() tile already exists in request queue for modular provider. Moving to front of queue.");
else
logger.debug(
"MapTileModuleProviderBase.loadMaptileAsync() adding tile to request queue for modular provider.");
}
// this will put the tile in the queue, or move it to the front of
// the queue if it's already present
mPending.put(pState.getMapTile(), pState);
}
try {
mExecutor.execute(getTileLoader());
} catch (final RejectedExecutionException e) {
logger.warn("RejectedExecutionException", e);
}
}
protected void tileLoadedFailed(final MapTileRequestState pState) {
if (DEBUG_TILE_PROVIDERS) {
logger.debug(
"TileLoader.tileLoadedFailed() on provider: "
+ getName()
+ " with tile: "
+ pState.getMapTile());
}
removeTileFromQueues(pState.getMapTile());
pState.getCallback().mapTileRequestFailed(pState);
}