public void apply(ConveyorTile convTile) throws RequestFilterException {
TileLayer tl = convTile.getLayer();
// SRS srs = convTile.getSRS();
GridSubset gridSubset = tl.getGridSubset(convTile.getGridSetId());
int z = (int) convTile.getTileIndex()[2];
long[] gridCoverage = gridSubset.getCoverage(z);
// Figure out the radius
long width = gridCoverage[2] - gridCoverage[0];
long height = gridCoverage[3] - gridCoverage[1];
// Rounding must always err on the side of
// caution if you want to use KML hierarchies
long maxRad = 0;
if (width > height) {
maxRad = (width / 4) + 1;
} else {
maxRad = (height / 4) + 1;
}
// Figure out how the requested bounds relate
long midX = gridCoverage[0] + width / 2;
long midY = gridCoverage[1] + height / 2;
long xDist = midX - convTile.getTileIndex()[0];
long yDist = midY - convTile.getTileIndex()[1];
long rad = Math.round(Math.sqrt(xDist * xDist + yDist * yDist));
if (rad > maxRad) {
throw new BlankTileException(this);
}
}
private void seedTiles(StorageBroker storageBroker, TileRange tr, final WMSLayer tl)
throws Exception {
final String layerName = tl.getName();
// define the meta tile size to 1,1 so we hit all the tiles
final TileRangeIterator trIter = new TileRangeIterator(tr, tl.getMetaTilingFactors());
long[] gridLoc = trIter.nextMetaGridLocation(new long[3]);
while (gridLoc != null) {
Map<String, String> fullParameters = tr.getParameters();
final ConveyorTile tile =
new ConveyorTile(
storageBroker,
layerName,
tr.getGridSetId(),
gridLoc,
tr.getMimeType(),
fullParameters,
null,
null);
tile.setTileLayer(tl);
tl.seedTile(tile, false);
gridLoc = trIter.nextMetaGridLocation(gridLoc);
}
}
public ConveyorTile getConveyor(HttpServletRequest request, HttpServletResponse response)
throws ServiceException {
String layerId = super.getLayersParameter(request);
String encoding = request.getCharacterEncoding();
Map<String, String[]> params = request.getParameterMap();
String strFormat = ServletUtils.stringFromMap(params, encoding, "format");
String strZoom = ServletUtils.stringFromMap(params, encoding, "zoom");
String strX = ServletUtils.stringFromMap(params, encoding, "x");
String strY = ServletUtils.stringFromMap(params, encoding, "y");
String strCached = ServletUtils.stringFromMap(params, encoding, "cached");
String strMetaTiled = ServletUtils.stringFromMap(params, encoding, "metatiled");
long[] gridLoc =
GMapsConverter.convert(
Integer.parseInt(strZoom), Integer.parseInt(strX), Integer.parseInt(strY));
MimeType mimeType = null;
try {
if (strFormat == null) {
strFormat = "image/png";
}
mimeType = MimeType.createFromFormat(strFormat);
} catch (MimeException me) {
throw new ServiceException("Unable to determine requested format, " + strFormat);
}
ConveyorTile ret =
new ConveyorTile(
sb,
layerId,
gsb.WORLD_EPSG3857.getName(),
gridLoc,
mimeType,
null,
null,
request,
response);
if (strCached != null && !Boolean.parseBoolean(strCached)) {
ret.setRequestHandler(ConveyorTile.RequestHandler.SERVICE);
if (strMetaTiled != null && !Boolean.parseBoolean(strMetaTiled)) {
ret.setHint("not_cached,not_metatiled");
} else {
ret.setHint("not_cached");
}
}
return ret;
}
/** NB The following code is shared across Google Maps, Mobile Google Maps and Virtual Earth */
public void handleRequest(ConveyorTile tile) throws GeoWebCacheException {
if (tile.getHint() != null) {
// boolean requestTiled = true;
if (tile.getHint().equals("not_cached,not_metatiled")) {
// requestTiled = false;
} else if (!tile.getHint().equals("not_cached")) {
throw new GeoWebCacheException("Hint " + tile.getHint() + " is not known.");
}
TileLayer tl = tld.getTileLayer(tile.getLayerId());
if (tl == null) {
throw new GeoWebCacheException("Unknown layer " + tile.getLayerId());
}
if (!tl.isCacheBypassAllowed().booleanValue()) {
throw new GeoWebCacheException(
"Layer " + tile.getLayerId() + " is not configured to allow bypassing the cache.");
}
tile.setTileLayer(tl);
tl.getNoncachedTile(tile);
Service.writeTileResponse(tile, false);
}
}
private void testMultipleCrsMatchingGridSubsets(
final String srs, final String expectedGridset, long[] tileIndex) throws Exception {
GetMapRequest request = new GetMapRequest();
@SuppressWarnings("unchecked")
Map<String, String> rawKvp = new CaseInsensitiveMap(new HashMap<String, String>());
request.setRawKvp(rawKvp);
request.setFormat("image/png");
request.setSRS(srs);
request.setWidth(256);
request.setHeight(256);
rawKvp.put("layers", "mockLayer");
List<String> gridSetNames = Arrays.asList("GlobalCRS84Pixel", "GlobalCRS84Scale", "EPSG:4326");
tileLayer = mockTileLayer("mockLayer", gridSetNames);
// make the request match a tile in the expected gridset
BoundingBox bounds;
bounds = tileLayer.getGridSubset(expectedGridset).boundsFromIndex(tileIndex);
Envelope reqBbox =
new Envelope(bounds.getMinX(), bounds.getMaxX(), bounds.getMinY(), bounds.getMaxY());
request.setBbox(reqBbox);
ArgumentCaptor<ConveyorTile> captor = ArgumentCaptor.forClass(ConveyorTile.class);
StringBuilder errors = new StringBuilder();
mediator.dispatch(request, errors);
assertTrue(errors.toString(), errors.length() == 0);
verify(tileLayer, times(1)).getTile(captor.capture());
ConveyorTile tileRequest = captor.getValue();
assertEquals(expectedGridset, tileRequest.getGridSetId());
assertEquals("image/png", tileRequest.getMimeType().getMimeType());
assertTrue(
"Expected "
+ Arrays.toString(tileIndex)
+ " got "
+ Arrays.toString(tileRequest.getTileIndex()),
Arrays.equals(tileIndex, tileRequest.getTileIndex()));
}
private void testParameterFilter(
GetMapRequest request,
Map<String, String> rawKvp,
String rawKvpParamName,
String rawKvpParamValue) {
// set up raw kvp
rawKvp.put(rawKvpParamName, rawKvpParamValue);
StringBuilder errors = new StringBuilder();
ConveyorTile tileRequest = mediator.prepareRequest(tileLayer, request, errors);
assertTrue(errors.toString(), errors.length() == 0);
Map<String, String> fullParameters = tileRequest.getFullParameters();
assertEquals(
fullParameters.toString(),
rawKvpParamValue,
fullParameters.get(rawKvpParamName.toUpperCase()));
}
// ignore to fix the build until the failing assertion is worked out
@Test
@Ignore
public void testMinMaxCacheGetTile() throws Exception {
WMSLayer tl = createWMSLayer("image/png", 5, 6);
MockTileSupport mock = new MockTileSupport(tl);
// we're not really seeding, just using the range
SeedRequest req = createRequest(tl, GWCTask.TYPE.SEED, 4, 7);
TileRange tr = TileBreeder.createTileRange(req, tl);
List<ConveyorTile> tiles = getTiles(mock.storageBroker, tr, tl);
// this number is determined by our tileRange minus those out of bounds
assertEquals(880, tiles.size());
// tiles at zoom 4 and 7 will have non png data
for (int i = 0; i < tiles.size(); i++) {
ConveyorTile tile = tiles.get(i);
assertNotNull(tile.getBlob());
// System.out.println(tile.getTileIndex()[2] + " " + tile.getBlob().getSize());
}
// empirical numbers
// this number is determined by the number of metarequests at level 5+6
assertEquals(218, mock.storagePutCounter.get());
// and the number of successful hits at level 5+6
assertEquals(176, mock.storageGetCounter.get());
// these last will vary - on a dual core machine, they appeared predictable
// but on a 8 core machine, the threads compete for cache and we can only
// assertain by range
// @todo
// assertTrue(Math.abs(532 - mock.cacheHits.get()) < 10);
// assertTrue(Math.abs(494 - mock.cacheMisses.get()) < 10);
// assertTrue(Math.abs(172 - mock.wmsMetaRequestCounter.get()) < 10);
// stats
System.out.println("transientCacheSize " + mock.transientCache.size());
System.out.println("transientCacheStorage " + mock.transientCache.storageSize());
}
protected void renderCanvas() throws OutsideCoverageException, GeoWebCacheException, IOException {
// Now we loop over all the relevant tiles and write them to the canvas,
// Starting at the bottom, moving to the right and up
// Bottom row of tiles, in tile coordinates
long starty = srcRectangle[1];
// gridy is the tile row index
for (long gridy = starty; gridy <= srcRectangle[3]; gridy++) {
int tiley = 0;
int canvasy = (int) (srcRectangle[3] - gridy) * gridSubset.getTileHeight();
int tileHeight = gridSubset.getTileHeight();
if (canvOfs.top > 0) {
// Add padding
canvasy += canvOfs.top;
} else {
// Top tile is cut off
if (gridy == srcRectangle[3]) {
// This one starts at the top, so canvasy remains 0
tileHeight = tileHeight + canvOfs.top;
tiley = -canvOfs.top;
} else {
// Offset that the first tile contributed,
// rather, we subtract what it did not contribute
canvasy += canvOfs.top;
}
}
if (gridy == srcRectangle[1] && canvOfs.bottom < 0) {
// Check whether we only use part of the first tiles (bottom row)
// Offset is negative, slice the bottom off the tile
tileHeight += canvOfs.bottom;
}
long startx = srcRectangle[0];
for (long gridx = startx; gridx <= srcRectangle[2]; gridx++) {
long[] gridLoc = {gridx, gridy, srcIdx};
ConveyorTile tile =
new ConveyorTile(
sb,
layer.getName(),
gridSubset.getName(),
gridLoc,
ImageMime.png,
fullParameters,
null,
null);
// Check whether this tile is to be rendered at all
try {
layer.applyRequestFilters(tile);
} catch (RequestFilterException e) {
log.debug(e.getMessage());
continue;
}
layer.getTile(tile);
BufferedImage tileImg = ImageIO.read(tile.getBlob().getInputStream());
int tilex = 0;
int canvasx = (int) (gridx - startx) * gridSubset.getTileWidth();
int tileWidth = gridSubset.getTileWidth();
if (canvOfs.left > 0) {
// Add padding
canvasx += canvOfs.left;
} else {
// Leftmost tile is cut off
if (gridx == srcRectangle[0]) {
// This one starts to the left top, so canvasx remains 0
tileWidth = tileWidth + canvOfs.left;
tilex = -canvOfs.left;
} else {
// Offset that the first tile contributed,
// rather, we subtract what it did not contribute
canvasx += canvOfs.left;
}
}
if (gridx == srcRectangle[2] && canvOfs.right < 0) {
// Check whether we only use part of the first tiles (bottom row)
// Offset is negative, slice the bottom off the tile
tileWidth = tileWidth + canvOfs.right;
}
// TODO We should really ensure we can never get here
if (tileWidth == 0 || tileHeight == 0) {
log.debug("tileWidth: " + tileWidth + " tileHeight: " + tileHeight);
continue;
}
// Cut down the tile to the part we want
if (tileWidth != gridSubset.getTileWidth() || tileHeight != gridSubset.getTileHeight()) {
log.debug(
"tileImg.getSubimage("
+ tilex
+ ","
+ tiley
+ ","
+ tileWidth
+ ","
+ tileHeight
+ ")");
tileImg = tileImg.getSubimage(tilex, tiley, tileWidth, tileHeight);
}
// Render the tile on the big canvas
log.debug(
"drawImage(subtile," + canvasx + "," + canvasy + ",null) " + Arrays.toString(gridLoc));
gfx.drawImage(tileImg, canvasx, canvasy, null); // imageObserver
}
}
gfx.dispose();
}
