Envelope findTileBounds(GridSubset gridSubset, BoundingBox bbox, int z) {
long[] i = gridSubset.getCoverageIntersection(z, bbox);
BoundingBox b1 = gridSubset.boundsFromIndex(new long[] {i[0], i[1], i[4]});
BoundingBox b2 = gridSubset.boundsFromIndex(new long[] {i[2], i[3], i[4]});
return new Envelope(
Math.min(b1.getMinX(), b2.getMinX()),
Math.max(b1.getMaxX(), b2.getMaxX()),
Math.min(b1.getMinY(), b2.getMinY()),
Math.max(b1.getMaxY(), b2.getMaxY()));
}
String[] boundsPrep(BoundingBox bbox) {
String[] bs = {
Double.toString(bbox.getMinX()),
Double.toString(bbox.getMinY()),
Double.toString(bbox.getMaxX()),
Double.toString(bbox.getMaxY())
};
return bs;
}
/**
* Creates the {@link RenderedImage} corresponding to the tile at index {@code tileIdx} and uses a
* {@link RenderedImageMapResponse} to encode it into the {@link #getResponseFormat() response
* format}.
*
* @see org.geowebcache.layer.MetaTile#writeTileToStream(int, org.geowebcache.io.Resource)
* @see RenderedImageMapResponse#write
*/
@Override
public boolean writeTileToStream(final int tileIdx, Resource target) throws IOException {
checkNotNull(metaTileMap, "webMap is not set");
if (!(metaTileMap instanceof RenderedImageMap)) {
throw new IllegalArgumentException(
"Only RenderedImageMaps are supported so far: " + metaTileMap.getClass().getName());
}
final RenderedImageMapResponse mapEncoder;
{
final GWC mediator = GWC.get();
final Response responseEncoder = mediator.getResponseEncoder(responseFormat, metaTileMap);
mapEncoder = (RenderedImageMapResponse) responseEncoder;
}
RenderedImage tile = metaTileMap.getImage();
WMSMapContent tileContext = metaTileMap.getMapContext();
if (this.tiles.length > 1 || (this.tiles.length == 1 && metaHasGutter())) {
final Rectangle tileDim = this.tiles[tileIdx];
tile = createTile(tileDim.x, tileDim.y, tileDim.width, tileDim.height);
disposeLater(tile);
{
final WMSMapContent metaTileContext = metaTileMap.getMapContext();
// do not create tileContext with metaTileContext.getLayers() as the layer list.
// It is not needed at this stage and the constructor would force a
// MapLayer.getBounds() that might fail
tileContext = new WMSMapContent();
tileContext.setRequest(metaTileContext.getRequest());
tileContext.setBgColor(metaTileContext.getBgColor());
tileContext.setMapWidth(tileDim.width);
tileContext.setMapHeight(tileDim.height);
tileContext.setPalette(metaTileContext.getPalette());
tileContext.setTransparent(tileContext.isTransparent());
long[][] tileIndexes = getTilesGridPositions();
BoundingBox tileBounds = gridSubset.boundsFromIndex(tileIndexes[tileIdx]);
ReferencedEnvelope tilebbox =
new ReferencedEnvelope(metaTileContext.getCoordinateReferenceSystem());
tilebbox.init(
tileBounds.getMinX(), tileBounds.getMaxX(), tileBounds.getMinY(), tileBounds.getMaxY());
tileContext.getViewport().setBounds(tilebbox);
}
}
OutputStream outStream = target.getOutputStream();
try {
// call formatImageOuputStream instead of write to avoid disposition of rendered images
// when processing a tile from a metatile and instead defer it to this class' dispose()
// method
mapEncoder.formatImageOutputStream(tile, outStream, tileContext);
return true;
} finally {
outStream.close();
}
}
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()));
}
@Test
public void testDispatchGetMapWithMatchingParameterFilters() 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("EPSG:900913");
request.setWidth(256);
request.setHeight(256);
rawKvp.put("layers", tileLayer.getName());
// tileLayer = mockTileLayer("mockLayer", ImmutableList.of("EPSG:900913", "EPSG:4326"));
// make the request match a tile in the expected gridset
BoundingBox bounds;
bounds = tileLayer.getGridSubset("EPSG:900913").boundsFromIndex(new long[] {0, 0, 1});
Envelope reqBbox =
new Envelope(bounds.getMinX(), bounds.getMaxX(), bounds.getMinY(), bounds.getMaxY());
request.setBbox(reqBbox);
assertTrue(tileLayer.getInfo().cachedStyles().size() > 0);
for (String style : tileLayer.getInfo().cachedStyles()) {
String rawKvpParamName = "styles";
String rawKvpParamValue = style;
testParameterFilter(request, rawKvp, rawKvpParamName, rawKvpParamValue);
}
request.setEnv(ImmutableMap.of("envKey", "envValue"));
updateStringParameterFilter(
tileLayerInfo, "ENV", true, "def:devVal", "envKey:envValue", "envKey2:envValue2");
testParameterFilter(request, rawKvp, "env", "envKey:envValue");
updateAcceptAllFloatParameterFilter(tileLayerInfo, "ANGLE", true);
request.setAngle(60);
testParameterFilter(request, rawKvp, "angle", "60.0");
request.setAngle(61.1);
testParameterFilter(request, rawKvp, "angle", "61.1");
}
@Test
public void testTruncateByBounds() throws Exception {
String layerName = tileLayer.getName();
ReferencedEnvelope bounds;
// bounds outside layer bounds (which are -180,0,0,90)
bounds = new ReferencedEnvelope(10, 20, 10, 20, DefaultGeographicCRS.WGS84);
BoundingBox layerBounds = tileLayer.getGridSubset("EPSG:4326").getGridSet().getOriginalExtent();
assertFalse(bounds.intersects(layerBounds.getMinX(), layerBounds.getMinY()));
assertFalse(bounds.intersects(layerBounds.getMaxX(), layerBounds.getMaxY()));
mediator.truncate(layerName, bounds);
verify(tileBreeder, never()).dispatchTasks(any(GWCTask[].class));
// bounds intersecting layer bounds
bounds = new ReferencedEnvelope(-10, -10, 10, 10, DefaultGeographicCRS.WGS84);
mediator.truncate(layerName, bounds);
int numGridsets = tileLayer.getGridSubsets().size();
int numFormats = tileLayer.getMimeTypes().size();
int numStyles = 1 /* default */ + tileLayer.getInfo().cachedStyles().size();
final int expected = numGridsets * numFormats * numStyles;
verify(tileBreeder, times(expected)).dispatchTasks(any(GWCTask[].class));
reset(tileBreeder);
bounds = bounds.transform(CRS.decode("EPSG:900913"), true);
mediator.truncate(layerName, bounds);
verify(tileBreeder, times(expected)).dispatchTasks(any(GWCTask[].class));
reset(tileBreeder);
bounds = mediator.getAreaOfValidity(CRS.decode("EPSG:2083")); // Terra del Fuego
mediator.truncate(layerName, bounds);
verify(tileBreeder, never()).dispatchTasks(any(GWCTask[].class));
reset(tileBreeder);
bounds = mediator.getAreaOfValidity(CRS.decode("EPSG:26986")); // Massachussets
mediator.truncate(layerName, bounds);
verify(tileBreeder, times(expected)).dispatchTasks(any(GWCTask[].class));
}
private static String generateHTML(
TileLayer layer, String gridSetStr, String formatStr, boolean asPlugin)
throws GeoWebCacheException {
String layerName = layer.getName();
GridSubset gridSubset = layer.getGridSubset(gridSetStr);
BoundingBox bbox = gridSubset.getGridSetBounds();
BoundingBox zoomBounds = gridSubset.getOriginalExtent();
String res = "resolutions: " + Arrays.toString(gridSubset.getResolutions()) + ",\n";
String units = "units: \"" + gridSubset.getGridSet().guessMapUnits() + "\",\n";
String openLayersPath;
if (asPlugin) {
openLayersPath = "../openlayers/OpenLayers.js";
} else {
openLayersPath = "../openlayers/OpenLayers.js";
}
String page =
"<html xmlns=\"http://www.w3.org/1999/xhtml\"><head>\n"
+ "<meta http-equiv=\"imagetoolbar\" content=\"no\">\n"
+ "<title>"
+ layerName
+ " "
+ gridSubset.getName()
+ " "
+ formatStr
+ "</title>\n"
+ "<style type=\"text/css\">\n"
+ "body { font-family: sans-serif; font-weight: bold; font-size: .8em; }\n"
+ "body { border: 0px; margin: 0px; padding: 0px; }\n"
+ "#map { width: 85%; height: 85%; border: 0px; padding: 0px; }\n"
+ "</style>\n"
+ "<script src=\""
+ openLayersPath
+ "\"></script> \n"
+ "<script type=\"text/javascript\"> \n"
+ "var map, demolayer; \n"
+ " // sets the chosen modifiable parameter \n"
+ " function setParam(name, value){ \n"
+ " str = \"demolayer.mergeNewParams({\" + name + \": '\" + value + \"'})\" \n"
+ " // alert(str); \n"
+ " eval(str); \n"
+ " } \n"
+ "OpenLayers.DOTS_PER_INCH = "
+ gridSubset.getDotsPerInch()
+ ";\n"
+ "OpenLayers.Util.onImageLoadErrorColor = 'transparent';\n"
+ "function init(){\n"
+ "var mapOptions = { \n"
+ res
+ "projection: new OpenLayers.Projection('"
+ gridSubset.getSRS().toString()
+ "'),\n"
+ "maxExtent: new OpenLayers.Bounds("
+ bbox.toString()
+ "),\n"
+ units
+ "controls: []\n"
+ "};\n"
+ "map = new OpenLayers.Map('map', mapOptions );\n"
+ "map.addControl(new OpenLayers.Control.PanZoomBar({\n"
+ " position: new OpenLayers.Pixel(2, 15)\n"
+ "}));\n"
+ "map.addControl(new OpenLayers.Control.Navigation());\n"
+ "map.addControl(new OpenLayers.Control.Scale($('scale')));\n"
+ "map.addControl(new OpenLayers.Control.MousePosition({element: $('location')}));\n"
+ "demolayer = new OpenLayers.Layer.WMS(\n"
+ "\""
+ layerName
+ "\",\"../service/wms\",\n"
+ "{layers: '"
+ layerName
+ "', format: '"
+ formatStr
+ "' },\n"
+ "{ tileSize: new OpenLayers.Size("
+ gridSubset.getTileWidth()
+ ","
+ gridSubset.getTileHeight()
+ ")";
/*
* If the gridset has a top left tile origin, lets tell that to open layers. Otherwise it'll
* calculate tile bounds based on the bbox bottom left corner, leading to misaligned
* requests.
*/
GridSet gridSet = gridSubset.getGridSet();
if (gridSet.isTopLeftAligned()) {
page +=
",\n tileOrigin: new OpenLayers.LonLat(" + bbox.getMinX() + ", " + bbox.getMaxY() + ")";
}
page +=
"});\n"
+ "map.addLayer(demolayer);\n"
+ "map.zoomToExtent(new OpenLayers.Bounds("
+ zoomBounds.toString()
+ "));\n"
+ "// The following is just for GetFeatureInfo, which is not cached. Most people do not need this \n"
+ "map.events.register('click', map, function (e) {\n"
+ " document.getElementById('nodelist').innerHTML = \"Loading... please wait...\";\n"
+ " var params = {\n"
+ " REQUEST: \"GetFeatureInfo\",\n"
+ " EXCEPTIONS: \"application/vnd.ogc.se_xml\",\n"
+ " BBOX: map.getExtent().toBBOX(),\n"
+ " X: e.xy.x,\n"
+ " Y: e.xy.y,\n"
+ " INFO_FORMAT: 'text/html',\n"
+ " QUERY_LAYERS: map.layers[0].params.LAYERS,\n"
+ " FEATURE_COUNT: 50,\n"
+ " Layers: '"
+ layerName
+ "',\n"
+ " Styles: '',\n"
+ " Srs: '"
+ gridSubset.getSRS().toString()
+ "',\n"
+ " WIDTH: map.size.w,\n"
+ " HEIGHT: map.size.h,\n"
+ " format: \""
+ formatStr
+ "\" };\n"
+ " OpenLayers.loadURL(\"../service/wms\", params, this, setHTML, setHTML);\n"
+ " OpenLayers.Event.stop(e);\n"
+ " });\n"
+ "}\n"
+ "function setHTML(response){\n"
+ " document.getElementById('nodelist').innerHTML = response.responseText;\n"
+ "};\n"
+ "</script>\n"
+ "</head>\n"
+ "<body onload=\"init()\">\n"
+ "<div id=\"params\">"
+ makeModifiableParameters(layer)
+ "</div>\n"
+ "<div id=\"map\"></div>\n"
+ "<div id=\"nodelist\"></div>\n"
+ "</body>\n"
+ "</html>";
return page;
}
protected void determineCanvasLayout() {
// Find the spatial extent of the tiles needed to cover the desired extent
srcRectangle = gridSubset.getCoverageIntersection(srcIdx, reqBounds);
srcBounds = gridSubset.boundsFromRectangle(srcRectangle);
// We now have the complete area, lets figure out our offsets
// Positive means that there is blank space to the first tile,
// negative means we will not use the entire tile
boundOfs.left = srcBounds.getMinX() - reqBounds.getMinX();
boundOfs.bottom = srcBounds.getMinY() - reqBounds.getMinY();
boundOfs.right = reqBounds.getMaxX() - srcBounds.getMaxX();
boundOfs.top = reqBounds.getMaxY() - srcBounds.getMaxY();
canvasSize[0] = (int) Math.round(reqBounds.getWidth() / this.srcResolution);
canvasSize[1] = (int) Math.round(reqBounds.getHeight() / this.srcResolution);
PixelOffsets naiveOfs = new PixelOffsets();
// Calculate the corresponding pixel offsets. We'll stick to sane,
// i.e. bottom left, coordinates at this point
naiveOfs.left = (int) Math.round(boundOfs.left / this.srcResolution);
naiveOfs.bottom = (int) Math.round(boundOfs.bottom / this.srcResolution);
naiveOfs.right = (int) Math.round(boundOfs.right / this.srcResolution);
naiveOfs.top = (int) Math.round(boundOfs.top / this.srcResolution);
// Find the offsets on the opposite sides. This is dependent of how the first two were rounded.
// First, find a tile boundary near the canvas edge, then make sure it's on the correct
// side to match the corresponding boundOfs, then take the modulo of the naive rounding
// based on the boundOfs, then subtract the two and apply the difference to the boundOfs.
int tileWidth = this.gridSubset.getTileWidth();
int tileHeight = this.gridSubset.getTileHeight();
canvOfs.left = naiveOfs.left;
canvOfs.bottom = naiveOfs.bottom;
canvOfs.right = (canvasSize[0] - canvOfs.left) % tileWidth; // Find nearby tile boundary
canvOfs.right =
(Integer.signum(naiveOfs.right) * tileWidth + canvOfs.right)
% tileWidth; // Ensure same sign as naive calculation
canvOfs.right =
canvOfs.right
- (naiveOfs.right % tileWidth)
+ naiveOfs.right; // Find adjustment from naive and apply to naive calculation
canvOfs.top = (canvasSize[1] - canvOfs.bottom) % tileHeight; // Find nearby tile boundary
canvOfs.top =
(Integer.signum(naiveOfs.top) * tileHeight + canvOfs.top)
% tileHeight; // Ensure same sign as naive calculation
canvOfs.top =
canvOfs.top
- (naiveOfs.top % tileHeight)
+ naiveOfs.top; // Find adjustment from naive and apply to naive calculation
// postconditions
assert Math.abs(canvOfs.left - naiveOfs.left) <= 1;
assert Math.abs(canvOfs.bottom - naiveOfs.bottom) <= 1;
assert Math.abs(canvOfs.right - naiveOfs.right) <= 1;
assert Math.abs(canvOfs.top - naiveOfs.top) <= 1;
if (log.isDebugEnabled()) {
log.debug("intersection rectangle: " + Arrays.toString(srcRectangle));
log.debug("intersection bounds: " + srcBounds + " (" + reqBounds + ")");
log.debug(
"Bound offsets: "
+ Arrays.toString(
new double[] {boundOfs.left, boundOfs.bottom, boundOfs.right, boundOfs.top}));
log.debug(
"Canvas size: " + Arrays.toString(canvasSize) + "(" + reqWidth + "," + reqHeight + ")");
log.debug(
"Canvas offsets: "
+ Arrays.toString(
new int[] {canvOfs.left, canvOfs.bottom, canvOfs.right, canvOfs.top}));
}
}
void addTileLayers(GeoPackage geopkg, List<MapLayerInfo> mapLayers, WMSMapContent map)
throws IOException {
if (mapLayers.isEmpty()) {
return;
}
// figure out a name for the file entry
String tileEntryName = null;
Map formatOpts = map.getRequest().getFormatOptions();
if (formatOpts.containsKey("tileset_name")) {
tileEntryName = (String) formatOpts.get("tileset_name");
}
if (tileEntryName == null) {
tileEntryName = map.getTitle();
}
if (tileEntryName == null && mapLayers.size() == 1) {
Iterator<MapLayerInfo> it = mapLayers.iterator();
tileEntryName = it.next().getLayerInfo().getName();
}
GridSubset gridSubset = findBestGridSubset(map);
int[] minmax = findMinMaxZoom(gridSubset, map);
BoundingBox bbox = bbox(map);
TileEntry e = new TileEntry();
e.setTableName(tileEntryName);
if (mapLayers.size() == 1) {
ResourceInfo r = mapLayers.get(0).getResource();
e.setIdentifier(r.getTitle());
e.setDescription(r.getAbstract());
}
e.setBounds(
new ReferencedEnvelope(
findTileBounds(gridSubset, bbox, minmax[0]), map.getCoordinateReferenceSystem()));
e.setSrid(srid(map));
GridSet gridSet = gridSubset.getGridSet();
for (int z = minmax[0]; z < minmax[1]; z++) {
Grid g = gridSet.getGrid(z);
TileMatrix m = new TileMatrix();
m.setZoomLevel(z);
m.setMatrixWidth((int) g.getNumTilesWide());
m.setMatrixHeight((int) g.getNumTilesHigh());
m.setTileWidth(gridSubset.getTileWidth());
m.setTileHeight(gridSubset.getTileHeight());
// TODO: not sure about this
m.setXPixelSize(g.getResolution());
m.setYPixelSize(g.getResolution());
// m.setXPixelSize(gridSet.getPixelSize());
// m.setYPixelSize(gridSet.getPixelSize());
e.getTileMatricies().add(m);
}
// figure out the actual bounds of the tiles to be renderered
LOGGER.fine("Creating tile entry" + e.getTableName());
geopkg.create(e);
// create a prototype getmap request
GetMapRequest req = new GetMapRequest();
OwsUtils.copy(map.getRequest(), req, GetMapRequest.class);
req.setLayers(mapLayers);
String imageFormat =
formatOpts.containsKey("format") ? parseFormatFromOpts(formatOpts) : findBestFormat(map);
req.setFormat(imageFormat);
req.setWidth(gridSubset.getTileWidth());
req.setHeight(gridSubset.getTileHeight());
// count tiles as we generate them
int ntiles = 0;
// flag determining if tile row indexes we store in database should be inverted
boolean flipy = Boolean.valueOf((String) formatOpts.get("flipy"));
for (int z = minmax[0]; z < minmax[1]; z++) {
long[] intersect = gridSubset.getCoverageIntersection(z, bbox);
for (long x = intersect[0]; x <= intersect[2]; x++) {
for (long y = intersect[1]; y <= intersect[3]; y++) {
BoundingBox box = gridSubset.boundsFromIndex(new long[] {x, y, z});
req.setBbox(new Envelope(box.getMinX(), box.getMaxX(), box.getMinY(), box.getMaxY()));
Tile t = new Tile();
t.setZoom(z);
t.setColumn((int) x);
t.setRow((int) (flipy ? gridSubset.getNumTilesHigh(z) - (y + 1) : y));
WebMap result = webMapService.getMap(req);
t.setData(toBytes(result));
geopkg.add(e, t);
// images we encode are actually kept around, we need to clean them up
if (ntiles++ == TILE_CLEANUP_INTERVAL) {
cleanUpImages();
ntiles = 0;
}
}
}
}
}