protected double calcPixelSizeOfRequestArea(IMapRequest req) {
Sector reqSector = req.getExtent();
double reqHeight = (double) ((req.getHeight() > 0) ? req.getHeight() : 512);
return (reqSector.getDeltaLatDegrees() / reqHeight);
}
public ImageFormatter serviceRequest(IMapRequest req) throws IOException, WMSServiceException {
ImageFormatter formatter = null;
try {
Sector reqExtent =
(SingleFileLayer.this.isElevation)
? req.getExtentForElevationRequest()
: req.getExtent();
if (null == this.intersects(reqExtent, SingleFileLayer.this.getBBox())) {
String msg =
Logging.getMessage(
"WMS.Layer.OutOfCoverage",
reqExtent.toString(),
SingleFileLayer.this.getBBox().toString());
Logging.logger().severe(msg);
throw new WMSServiceException(msg);
}
if (req.getHeight() <= 0 || req.getWidth() <= 0) {
String msg =
Logging.getMessage("generic.InvalidImageSize", req.getWidth(), req.getHeight());
Logging.logger().severe(msg);
throw new WMSServiceException(msg);
}
DataRaster[] rasters = SingleFileLayer.this.rasters;
if (null == rasters || 0 == rasters.length) {
String msg = Logging.getMessage("nullValue.RasterIsNull");
Logging.logger().severe(msg);
throw new WMSServiceException(msg);
}
double missingDataReplacement = (double) SingleFileLayer.this.nodataReplacement;
try {
String s = req.getBGColor();
if (null != s) {
missingDataReplacement = Double.parseDouble(s);
}
} catch (Exception e) {
missingDataReplacement = (double) SingleFileLayer.this.nodataReplacement;
}
DataRaster raster = rasters[0];
if (raster instanceof BufferedImageRaster) {
BufferedImageRaster reqRaster =
new BufferedImageRaster(
req.getWidth(), req.getHeight(), Transparency.TRANSLUCENT, reqExtent);
raster.drawOnTo(reqRaster);
BufferedImage img = reqRaster.getBufferedImage();
this.makeNoDataTransparent(
img, SingleFileLayer.this.nodataSignal, (short) missingDataReplacement);
formatter = new BufferedImageFormatter(img);
} else if (raster instanceof ByteBufferRaster) {
AVList reqParams = new AVListImpl();
reqParams.setValue(AVKey.WIDTH, req.getWidth());
reqParams.setValue(AVKey.HEIGHT, req.getHeight());
reqParams.setValue(AVKey.SECTOR, reqExtent);
reqParams.setValue(
AVKey.BYTE_ORDER, AVKey.LITTLE_ENDIAN); // by default BIL is LITTLE ENDIAN
reqParams.setValue(AVKey.PIXEL_FORMAT, AVKey.ELEVATION);
String reqFormat = req.getFormat();
if (null != reqFormat && reqFormat.endsWith("32")) {
reqParams.setValue(AVKey.DATA_TYPE, AVKey.FLOAT32);
} else {
reqParams.setValue(AVKey.DATA_TYPE, AVKey.INT16);
}
reqParams.setValue(AVKey.MISSING_DATA_REPLACEMENT, missingDataReplacement);
ByteBufferRaster reqRaster =
new ByteBufferRaster(req.getWidth(), req.getHeight(), reqExtent, reqParams);
raster.drawOnTo(reqRaster);
if (SingleFileLayer.this.convertFeetToMeters) {
this.convertFeetToMeters(reqRaster);
}
formatter = new DataRasterFormatter(reqRaster);
} else {
String msg =
Logging.getMessage(
"generic.UnrecognizedImageSourceType", raster.getClass().getName());
Logging.logger().severe(msg);
throw new WMSServiceException(msg);
}
} catch (WMSServiceException wmsse) {
throw wmsse;
} catch (Exception ex) {
Logging.logger()
.log(
java.util.logging.Level.SEVERE,
SingleFileLayer.this.getThreadId() + ex.getMessage(),
ex);
// throw new WMSServiceException( s );
} finally {
}
return formatter;
}
public ImageFormatter serviceRequest(IMapRequest req) throws IOException, WMSServiceException {
int reqWidth = 512;
int reqHeight = 512;
this.threadId = Thread.currentThread().getId();
MapSource myMapSource = CompoundImageryGenerator.this.mapSource;
Logging.logger()
.info("START CompoundServiceInstance :: serviceRequest( " + myMapSource.getName() + ")");
try {
Integer bgColor = CompoundImageryGenerator.DEFAULT_MISSING_DATA_COLOR;
String bgColorStr = req.getBGColor();
if (bgColorStr != null && 0 < bgColorStr.length()) {
try {
bgColor = Integer.parseInt(bgColorStr, 16);
} catch (NumberFormatException ex) {
Logging.logger()
.severe("Unable to parse BGCOLOR in get imagery request: " + ex.getMessage());
bgColor = CompoundImageryGenerator.DEFAULT_MISSING_DATA_COLOR;
}
} else
Logging.logger()
.severe(
"BGCOLOR was not specified in the getImagery request: using default " + bgColor);
req.setBGColor(bgColor.toString());
reqWidth = (req.getWidth() > 0) ? req.getWidth() : 512;
req.setWidth(reqWidth);
reqHeight = (req.getHeight() > 0) ? req.getHeight() : 512;
req.setHeight(reqHeight);
Sector reqSector =
Sector.fromDegrees(
req.getBBoxYMin(), req.getBBoxYMax(), req.getBBoxXMin(), req.getBBoxXMax());
double reqPixelSize = reqSector.getDeltaLatDegrees() / reqHeight;
MapSource reqMapSource = null;
for (Iterator<MapSource> iterator = myMapSource.getChildren(); iterator.hasNext(); ) {
MapSource ms = iterator.next();
MapGenerator gen = (null != ms) ? ms.getMapGenerator() : null;
if (null == gen) {
Logging.logger()
.severe("child mapSource `" + ms.getName() + "` has no associated map generator!");
continue;
}
Sector bbox = gen.getBBox();
Logging.logger()
.info(
"found child mapSource `" + ms.getName() + "` with generator: " + gen.toString());
if (!reqSector.intersects(bbox)) {
Logging.logger()
.info(
"child mapSource`"
+ ms.getName()
+ "`: out of coverage, skipping"
+ bbox.toString());
continue;
}
double genPixelSize = gen.getPixelSize();
reqMapSource =
ms; // assumes layers are configured in order according to resolutions from low to
// high
Logging.logger()
.info(
"Comparing texel sizes: req = "
+ reqPixelSize
+ " , layer's = "
+ gen.getPixelSize());
if (reqPixelSize >= genPixelSize) {
// satisfactory generator found
break;
}
}
ImageFormatter fmt = null;
if (null != reqMapSource) {
try {
MapGenerator gen = reqMapSource.getMapGenerator();
Logging.logger()
.info(
"`"
+ reqMapSource.getName()
+ "` is executing request; req texel size = "
+ reqPixelSize
+ " where layer's texel size = "
+ gen.getPixelSize());
fmt = gen.getServiceInstance().serviceRequest(req);
} catch (Exception ex) {
Logging.logger().severe("Error while accessing a child mapSource: " + ex.getMessage());
}
}
if (null == fmt) {
Logging.logger().info("CompoundImageryGenerator will return an empty transparent image");
fmt = createEmptyImage(req.getWidth(), req.getHeight(), new Color(bgColor));
}
return fmt;
} catch (Exception ex) {
String msg = Logging.getMessage("WMS.RequestFailed", ex.getMessage());
Logging.logger().log(java.util.logging.Level.SEVERE, msg, ex);
throw new WMSServiceException(msg);
}
}