private Layer getLayer(WebMapServer server, String layerName) {
for (Layer layer : server.getCapabilities().getLayerList()) {
if (layerName.equals(layer.getName())) {
return layer;
}
}
throw new IllegalArgumentException("Could not find layer " + layerName);
}
private Collection<Layer> getWMSLayers() {
String zp = Geospace.get().getProperties().getProperty(WMS_LAYER_PROPERTY + "." + _wms_index);
ArrayList<Layer> layers = new ArrayList<Layer>();
for (Layer l : WMSUtils.getNamedLayers(_wms.getCapabilities())) {
if (zp == null || (zp != null && zp.contains(l.getName()))) {
layers.add(l);
}
}
return layers;
}
public ImageDescriptor createWMSGylph(Layer target) {
if (target.isType(WebMapServer.class)) return null;
try {
WebMapServer wms = target.getResource(WebMapServer.class, null);
org.geotools.data.ows.Layer layer =
target.getResource(org.geotools.data.ows.Layer.class, null);
if (wms.getCapabilities().getRequest().getGetLegendGraphic() != null) {
GetLegendGraphicRequest request = wms.createGetLegendGraphicRequest();
request.setLayer(layer.getName());
String desiredFormat = null;
List formats = wms.getCapabilities().getRequest().getGetLegendGraphic().getFormats();
if (formats.contains("image/png")) { // $NON-NLS-1$
desiredFormat = "image/png"; // $NON-NLS-1$
}
if (desiredFormat == null && formats.contains("image/gif")) { // $NON-NLS-1$
desiredFormat = "image/gif"; // $NON-NLS-1$
}
if (desiredFormat == null) {
return null;
}
request.setFormat(desiredFormat);
return ImageDescriptor.createFromURL(request.getFinalURL());
}
} catch (Exception e) {
// darn
}
return null;
/*
* BufferedImage image = createBufferedImage( target, 16, 16); Graphics2D g2 = (Graphics2D)
* image.getGraphics(); g2.setColor(Color.GREEN); g2.fillRect(1, 1, 14, 14);
* g2.setColor(Color.BLACK); g2.drawRect(0, 0, 15, 15); return createImageDescriptor(image);
*/
}
@SuppressWarnings("unchecked")
private void setImageFormat(WebMapServer wms, GetMapRequest request) {
List formats = wms.getCapabilities().getRequest().getGetMap().getFormats();
String str;
if (getPreferencesStore().getBoolean(PreferenceConstants.P_USE_DEFAULT_ORDER)) {
str = getPreferencesStore().getDefaultString(PreferenceConstants.P_IMAGE_TYPE_ORDER);
} else {
str = getPreferencesStore().getString(PreferenceConstants.P_IMAGE_TYPE_ORDER);
}
String[] preferredFormats = str.split(","); // $NON-NLS-1$
// Select one of the available formats from the WMS server
// the order of preferred formats is set in the preferences
for (String format : preferredFormats) {
if (formats.contains(format)) {
request.setProperty(GetMapRequest.FORMAT, format);
request.setTransparent(formatSupportsTransparency(format));
break;
}
}
}
public static void main(String[] args) {
URL url = null;
try {
url =
new URL(
// "http://www2.dmsolutions.ca/cgi-bin/mswms_gmap?VERSION=1.1.0&REQUEST=GetCapabilities");
"http://sigel.aneel.gov.br/arcgis/services/SIGEL/Geracao/MapServer/WMSServer?request=getcapabilities");
// "http://www2.sipam.gov.br/geoserver/wms?service=WMS&request=GetCapabilities");
} catch (MalformedURLException e) {
// will not happen
}
WebMapServer wms = null;
try {
wms = new WebMapServer(url);
WMSCapabilities capabilities = wms.getCapabilities();
String serverName = capabilities.getService().getName();
String serverTitle = capabilities.getService().getTitle();
System.out.println(
"Capabilities retrieved from server: " + serverName + " (" + serverTitle + ")");
System.out.println(capabilities.getService().getOnlineResource());
// gets the top most layer, which will contain all the others
Layer rootLayer = capabilities.getLayer();
System.out.println(rootLayer.getName());
System.out.println("===============");
Layer[] layers2 = WMSUtils.getNamedLayers(capabilities);
List<Layer> layers = capabilities.getLayerList();
CRSEnvelope env = null;
int i = 0;
for (Layer layer : layers2) {
i++;
System.out.println("Layer: (" + i + ")" + layer.getName());
System.out.println(" " + layer.getTitle());
System.out.println(" " + layer.getChildren().length);
System.out.println(" " + layer.getBoundingBoxes());
env = layer.getLatLonBoundingBox();
System.out.println(" " + env.getLowerCorner() + " x " + env.getUpperCorner());
List<String> formats = wms.getCapabilities().getRequest().getGetMap().getFormats();
System.out.println("formats: " + formats);
}
System.out.println("===============");
GetMapRequest request = wms.createGetMapRequest();
request.setFormat("image/png");
request.setDimensions(
"583", "420"); // sets the dimensions of the image to be returned from the server
request.setTransparent(true);
request.setSRS("EPSG:4326");
request.setBBox(env);
request.addLayer(layers.get(layers.size() - 1));
System.out.println(request.getFinalURL());
GetMapResponse response = (GetMapResponse) wms.issueRequest(request);
ImageIO.write(
ImageIO.read(response.getInputStream()),
"png",
new File("/Users/otos/development/projeto/demoiselle-spatial/tmp/file.png"));
System.out.println(request.getFinalURL());
} catch (IOException e) {
// There was an error communicating with the server
// For example, the server is down
} catch (ServiceException e) {
// The server returned a ServiceException (unusual in this case)
} catch (SAXException e) {
// Unable to parse the response from the server
// For example, the capabilities it returned was not valid
}
}
public synchronized void render(
Graphics2D destination, ReferencedEnvelope bounds, IProgressMonitor monitor)
throws RenderException {
int endLayerStatus = ILayer.DONE;
try {
if (bounds == null || bounds.isNull()) {
bounds = getContext().getImageBounds();
}
if (monitor.isCanceled()) return;
getContext().setStatus(ILayer.WAIT);
WebMapServer wms = getWMS();
GetMapRequest request = wms.createGetMapRequest();
// put in default exception format we understand as a client
// (if suppoted by the server)
WMSCapabilities capabilities = wms.getCapabilities();
if (capabilities
.getRequest()
.getGetMap()
.getFormats()
.contains(GetMapRequest.EXCEPTION_XML)) {
request.setExceptions(GetMapRequest.EXCEPTION_XML);
}
setImageFormat(wms, request);
if (monitor.isCanceled()) return;
double currScale = getContext().getViewportModel().getScaleDenominator();
List<ILayer> layers = getLayers();
for (int i = layers.size() - 1; i >= 0; i--) {
ILayer ilayer = layers.get(i);
Layer layer;
double minScale = 0;
double maxScale = Double.MAX_VALUE;
layer = ilayer.getResource(org.geotools.data.ows.Layer.class, null);
// check if there are min/max scale rules
StyleBlackboard sb = (StyleBlackboard) ilayer.getStyleBlackboard();
Style style = (Style) sb.lookup(Style.class);
if (style != null) {
Rule rule = style.getFeatureTypeStyles()[0].getRules()[0];
minScale = rule.getMinScaleDenominator();
maxScale = rule.getMaxScaleDenominator();
}
if (currScale >= minScale && currScale <= maxScale) {
// check for a wms style
StyleImpl wmsStyle =
(StyleImpl) ilayer.getStyleBlackboard().get(WMSStyleContent.WMSSTYLE);
if (wmsStyle != null) {
request.addLayer(layer, wmsStyle);
} else {
request.addLayer(layer);
}
}
}
if (monitor.isCanceled()) return;
List<Layer> wmsLayers = getWMSLayers();
if (wmsLayers == null || wmsLayers.isEmpty()) {
endLayerStatus = ILayer.WARNING;
return;
}
// figure out request CRS
String requestCRScode = findRequestCRS(wmsLayers, getViewportCRS(), getContext().getMap());
// TODO: make findRequestCRS more efficient (we are running CRS.decode at *least* twice)
CoordinateReferenceSystem requestCRS = CRS.decode(requestCRScode);
// figure out viewport
// ReferencedEnvelope viewport;
// Envelope viewportBBox = getViewportBBox();
// CoordinateReferenceSystem viewportCRS = getViewportCRS();
// if (viewportBBox == null) {
// // change viewport to world
// viewportBBox = new Envelope(-180, 180, -90, 90);
// if (!DefaultGeographicCRS.WGS84.equals(viewportCRS)) { // reproject
// viewport = new ReferencedEnvelope(viewportBBox,
// DefaultGeographicCRS.WGS84);
// viewportBBox = viewport.transform(viewportCRS, true);
// }
// }
ReferencedEnvelope requestBBox = null;
Envelope backprojectedBBox = null; // request bbox projected to the viewport crs
// viewport = new ReferencedEnvelope(viewportBBox, viewportCRS);
// requestBBox = calculateRequestBBox(wmsLayers, viewport, requestCRS);
requestBBox = calculateRequestBBox(wmsLayers, bounds, requestCRS, capabilities.getVersion());
// check that a request is needed (not out of a bounds, invalid, etc)
if (requestBBox == NILL_BOX) {
endLayerStatus = ILayer.WARNING;
return;
}
assert requestBBox.getCoordinateReferenceSystem().equals(requestCRS);
if (requestBBox.getCoordinateReferenceSystem().equals(getViewportCRS())) {
backprojectedBBox = (Envelope) requestBBox;
} else {
backprojectedBBox = (Envelope) requestBBox.transform(getViewportCRS(), true);
}
if (WMSPlugin.isDebugging(Trace.RENDER)) {
WMSPlugin.trace("Viewport CRS: " + getViewportCRS().getName()); // $NON-NLS-1$
WMSPlugin.trace("Request CRS: " + requestCRS.getName()); // $NON-NLS-1$
WMSPlugin.trace("Context Image bounds: " + getContext().getImageBounds()); // $NON-NLS-1$
WMSPlugin.trace("Request BBox bounds: " + requestBBox); // $NON-NLS-1$
WMSPlugin.trace("Backprojected request bounds: " + backprojectedBBox); // $NON-NLS-1$
}
Service wmsService = capabilities.getService();
Dimension maxDimensions = new Dimension(wmsService.getMaxWidth(), wmsService.getMaxHeight());
// Dimension imageDimensions =
// calculateImageDimensions(getContext().getMapDisplay()
// .getDisplaySize(), maxDimensions, getViewportBBox(), backprojectedBBox);
Dimension imageDimensions =
calculateImageDimensions(
getContext().getImageSize(), maxDimensions, bounds, backprojectedBBox);
if (imageDimensions.height < 1 || imageDimensions.width < 1) {
endLayerStatus = ILayer.WARNING;
return;
}
request.setDimensions(
imageDimensions.width + "", imageDimensions.height + ""); // $NON-NLS-1$ //$NON-NLS-2$
// epsg could be under identifiers or authority.
Set<ReferenceIdentifier> identifiers = requestCRS.getIdentifiers();
String srs = identifiers.isEmpty() ? EPSG_4326 : identifiers.iterator().next().toString();
request.setSRS(srs); // EPSG_4326
request.setBBox(requestBBox);
// request.setBBox(requestBBox.getMinX() + "," + requestBBox.getMinY()+ "," +
// requestBBox.getMaxX()+ "," + requestBBox.getMaxY());
if (monitor.isCanceled()) return;
setFilter(wms, request);
// request.setProperty("DACS_ACS", null);
BufferedImage image = readImage(wms, request, monitor);
if (monitor.isCanceled()) return;
if (image == null) {
Exception e = new RuntimeException(Messages.BasicWMSRenderer2_unable_to_decode_image);
throw wrapException(e);
}
// backprojectedBBox or viewportBBox
renderGridCoverage(destination, backprojectedBBox, imageDimensions, requestBBox, image);
} catch (Exception e) {
if (e instanceof RenderException) throw (RenderException) e;
throw new RenderException(e);
} finally {
getContext().setStatus(endLayerStatus);
if (endLayerStatus == ILayer.DONE) {
// clear the status message (rendering was successful)
getContext().setStatusMessage(null);
}
}
}
private static void writeLayer(ILayer layer, BufferedWriter out) throws IOException {
Layer wmsLayer = layer.getResource(Layer.class, null);
WebMapServer wms = layer.getResource(WebMapServer.class, null);
WMSCapabilities caps = wms.getCapabilities();
String version = caps.getVersion();
String title = wms.getCapabilities().getService().getTitle();
int hidden = layer.isVisible() ? 1 : 0;
int info = layer.isApplicable("info") ? 1 : 0; // $NON-NLS-1$
String get = caps.getRequest().getGetCapabilities().getGet().toExternalForm();
System.out.println(get);
if (get.endsWith("&")) get = get.substring(0, get.length() - 1); // $NON-NLS-1$
append(
4,
out,
"<Layer hidden=\""
+ hidden
+ "\" queryable=\""
+ info
+ "\">"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
append(
6,
out,
"<Server service=\"OGC:WMS\" title=\""
+ title
+ "\" version=\""
+ version
+ "\">"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
append(
8,
out,
"<OnlineResource method=\"GET\" xlink:href=\""
+ get
+ "\" xlink:type=\"simple\"/>"); //$NON-NLS-1$ //$NON-NLS-2$
append(6, out, "</Server>"); // $NON-NLS-1$
append(6, out, "<Name>" + wmsLayer.getName() + "</Name>"); // $NON-NLS-1$ //$NON-NLS-2$
append(6, out, "<Title>" + wmsLayer.getTitle() + "</Title>"); // $NON-NLS-1$ //$NON-NLS-2$
if (!Double.isNaN(wmsLayer.getScaleHintMin()))
append(
6,
out,
"<sld:MinScaleDenominator>"
+ wmsLayer.getScaleHintMin()
+ "</sld:MinScaleDenominator>"); //$NON-NLS-1$ //$NON-NLS-2$
if (!Double.isNaN(wmsLayer.getScaleHintMax()))
append(
6,
out,
"<sld:MaxScaleDenominator>"
+ wmsLayer.getScaleHintMax()
+ "</sld:MaxScaleDenominator>"); //$NON-NLS-1$ //$NON-NLS-2$
for (String srs : (Set<String>) wmsLayer.getSrs()) {
append(6, out, "<SRS>" + srs + "</SRS>"); // $NON-NLS-1$ //$NON-NLS-2$
}
append(6, out, "<FormatList>"); // $NON-NLS-1$
boolean first = true; // TODO: look up preferences?
for (String format : caps.getRequest().getGetMap().getFormats()) {
if (first) {
append(
8, out, "<Format current=\"1\">" + format + "</Format>"); // $NON-NLS-1$ //$NON-NLS-2$
first = false;
}
append(8, out, "<Format>" + format + "</Format>"); // $NON-NLS-1$ //$NON-NLS-2$
}
append(6, out, "</FormatList>"); // $NON-NLS-1$
first = true; // TODO: look up on styleblackboard?
append(6, out, "<StyleList>"); // $NON-NLS-1$
Object styles = wmsLayer.getStyles();
List list;
if (styles instanceof String) list = Collections.singletonList(styles);
else if (styles instanceof List) list = (List) styles;
else list = Collections.emptyList();
for (Iterator<Object> iter = list.iterator(); iter.hasNext(); ) {
Object next = iter.next();
if (next instanceof String) {
String style = (String) next;
first = writeStyle(style, style, first, out);
} else if (next instanceof StyleImpl) {
StyleImpl style = (StyleImpl) next;
writeStyle(style.getName(), style.getTitle().toString(), first, out);
}
}
append(6, out, "</StyleList>"); // $NON-NLS-1$
append(4, out, "</Layer>"); // $NON-NLS-1$
}