/**
* Sends image as an URL to IE 8 & 9, base64 data for others
*
* @param url
* @param bufferedImage
* @param bbox
* @param isTiled
*/
protected void sendWFSImage(
String url,
BufferedImage bufferedImage,
Double[] bbox,
boolean isTiled,
boolean isboundaryTile) {
if (bufferedImage == null) {
log.warn("Failed to send image");
return;
}
Map<String, Object> output = new HashMap<String, Object>();
output.put(OUTPUT_LAYER_ID, this.layerId);
Location location = this.session.getLocation();
Tile tileSize = null;
if (isTiled) {
tileSize = this.session.getTileSize();
} else {
tileSize = this.session.getMapSize();
}
output.put(OUTPUT_IMAGE_SRS, location.getSrs());
output.put(OUTPUT_IMAGE_BBOX, bbox);
output.put(OUTPUT_IMAGE_ZOOM, location.getZoom());
output.put(OUTPUT_IMAGE_TYPE, this.type.toString()); // "normal" | "highlight"
output.put(OUTPUT_KEEP_PREVIOUS, this.session.isKeepPrevious());
output.put(OUTPUT_BOUNDARY_TILE, isboundaryTile);
output.put(OUTPUT_IMAGE_WIDTH, tileSize.getWidth());
output.put(OUTPUT_IMAGE_HEIGHT, tileSize.getHeight());
output.put(OUTPUT_IMAGE_URL, url);
byte[] byteImage = WFSImage.imageToBytes(bufferedImage);
String base64Image = WFSImage.bytesToBase64(byteImage);
int base64Size = (base64Image.length() * 2) / 1024;
// IE6 & IE7 doesn't support base64, max size in base64 for IE8 is 32KB
if (!(this.session.getBrowser().equals(BROWSER_MSIE) && this.session.getBrowserVersion() < 8
|| this.session.getBrowser().equals(BROWSER_MSIE)
&& this.session.getBrowserVersion() == 8
&& base64Size >= 32)) {
output.put(OUTPUT_IMAGE_DATA, base64Image);
}
this.service.addResults(this.session.getClient(), ResultProcessor.CHANNEL_IMAGE, output);
}
public boolean runHighlightJob() {
if (!this.sendHighlight) {
// highlight job with a flag for not sending images, what is going on in here?
return true;
}
if (!this.requestHandler(null)) {
return false;
}
this.featuresHandler();
if (!goNext()) {
return false;
}
// Send geometries, if requested as well
if (this.session.isGeomRequest()) {
this.sendWFSFeatureGeometries(
this.geomValuesList, ResultProcessor.CHANNEL_FEATURE_GEOMETRIES);
}
log.debug("highlight image handling", this.features.size());
// IMAGE HANDLING
log.debug("sending");
Location location = this.session.getLocation();
if (this.image == null) {
this.image =
new WFSImage(
this.layer,
this.session.getClient(),
this.session.getLayers().get(this.layerId).getStyleName(),
JobType.HIGHLIGHT.toString());
}
BufferedImage bufferedImage =
this.image.draw(this.session.getMapSize(), location, this.features);
if (bufferedImage == null) {
this.imageParsingFailed();
throw new RuntimeException("Image parsing failed!");
}
Double[] bbox = location.getBboxArray();
// cache (non-persistant)
setImageCache(
bufferedImage, JobType.HIGHLIGHT.toString() + "_" + this.session.getSession(), bbox, false);
String url = createImageURL(JobType.HIGHLIGHT.toString(), bbox);
this.sendWFSImage(url, bufferedImage, bbox, false, false);
return true;
}
/**
* Creates a image of the WFS layer's data
*
* @return image
*/
private BufferedImage draw() {
MapContent content = new MapContent();
MapViewport viewport = new MapViewport();
CoordinateReferenceSystem crs = location.getCrs();
ReferencedEnvelope bounds = location.getEnvelope();
Rectangle screenArea;
if (isTile && bufferSize != 0.0d) {
double width = (location.getRight() - location.getLeft()) / 2 * bufferSize;
double height = (location.getTop() - location.getBottom()) / 2 * bufferSize;
bounds = location.createEnlargedEnvelope(width, height);
screenArea = new Rectangle(0, 0, bufferedImageWidth, bufferedImageHeight);
} else {
screenArea = new Rectangle(0, 0, imageWidth, imageHeight); // image size
}
viewport.setCoordinateReferenceSystem(crs);
viewport.setScreenArea(screenArea);
viewport.setBounds(bounds);
viewport.setMatchingAspectRatio(true);
if (features.size() > 0) {
Layer featureLayer = new FeatureLayer(features, style);
content.addLayer(featureLayer);
}
content.setViewport(viewport);
return saveImage(content);
}
/**
* Creates a image of the WFS layer's data
*
* @param tile
* @param location
* @param bounds
* @param features
* @return image
*/
public BufferedImage draw(
Tile tile,
Location location,
List<Double> bounds,
FeatureCollection<SimpleFeatureType, SimpleFeature> features) {
this.imageWidth = tile.getWidth();
this.imageHeight = tile.getHeight();
if (bounds == null) {
this.location = location;
} else {
this.location = new Location(location.getSrs());
this.location.setBbox(bounds);
// enlarge if tile and buffer is defined
this.isTile = true;
if (bufferSize != 0.0d) {
this.bufferedImageWidth = imageWidth + (int) (imageWidth * bufferSize);
this.bufferedImageHeight = imageHeight + (int) (imageWidth * bufferSize);
}
}
this.features = features;
if (imageWidth == 0
|| imageHeight == 0
|| this.location == null
|| style == null
|| features == null) {
log.warn("Not enough information to draw");
log.warn(imageWidth);
log.warn(imageHeight);
log.warn(location);
log.warn(style);
log.warn(features.isEmpty());
return null;
}
return this.draw();
}
