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 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()));
}
