protected void loadOffsetFile()
{
InputStream inputStream = WWIO.openFileOrResourceStream(this.offsetsFilePath, typeof(EGM96));
if (inputStream == null)
{
String msg = Logging.getMessage("generic.CannotOpenFile", this.offsetsFilePath);
Logging.logger().severe(msg);
throw new WWRuntimeException(msg);
}
try
{
AVList bufferParams = new AVListImpl();
bufferParams.setValue(AVKey.DATA_TYPE, AVKey.INT16);
bufferParams.setValue(AVKey.BYTE_ORDER, AVKey.BIG_ENDIAN);
this.deltas = BufferWrapper.wrap(WWIO.readStreamToBuffer(is, true), bufferParams);
}
catch (IOException e)
{
String msg = Logging.getMessage("generic.ExceptionAttemptingToReadFile", this.offsetsFilePath);
Logging.logger().log(java.util.logging.Level.SEVERE, msg, e);
throw e;
}
finally
{
WWIO.closeStream(is, this.offsetsFilePath);
}
}
/**
* Reads XML document and extracts raster sources
*
* @param config Parsed configuration document.
*
* @return TRUE, if all raster sources are available, FALSE otherwise
*
*/
protected bool readRasterSources(RasterServerConfiguration config)
{
long startTime = System.currentTimeMillis();
bool hasUnavailableRasterSources = false;
int numSources = 0;
Sector extent = null;
try
{
List <RasterServerConfiguration.Source> sources = config.getSources();
if (sources == null || sources.size() == 0)
{
return(false);
}
numSources = sources.size();
foreach (RasterServerConfiguration.Source source in sources)
{
Thread.yield();
try
{
String rasterSourcePath = source.getPath();
if (WWUtil.isEmpty(rasterSourcePath))
{
continue;
}
AVList rasterMetadata = new AVListImpl();
File rasterSourceFile = new File(rasterSourcePath);
// normalize
rasterSourcePath = rasterSourceFile.getAbsolutePath();
if (!rasterSourceFile.exists())
{
hasUnavailableRasterSources = true;
String reason = Logging.getMessage("generic.FileDoesNotExists", rasterSourcePath);
Logging.logger().warning(reason);
continue;
}
if (!rasterSourceFile.canRead())
{
hasUnavailableRasterSources = true;
String reason = Logging.getMessage("generic.FileNoReadPermission", rasterSourcePath);
Logging.logger().warning(reason);
continue;
}
DataRasterReader rasterReader = this.findDataRasterReader(rasterSourceFile, rasterMetadata);
if (null == rasterReader)
{
hasUnavailableRasterSources = true;
String reason = Logging.getMessage("generic.UnknownFileFormatOrMatchingReaderNotFound",
rasterSourcePath);
Logging.logger().warning(reason);
continue;
}
Sector sector = source.getSector();
if (null == sector)
{
rasterReader.readMetadata(rasterSourceFile, rasterMetadata);
Object o = rasterMetadata.getValue(AVKey.SECTOR);
sector = (o is Sector) ? (Sector)o : null;
}
else
{
rasterMetadata.setValue(AVKey.SECTOR, sector);
}
Object rasterPixelFormat = rasterMetadata.getValue(AVKey.PIXEL_FORMAT);
String datasetPixelFormat = this.getDataSetPixelFormat();
if (!WWUtil.isEmpty(datasetPixelFormat))
{
// verify all data rasters are the same type - we do not allow to mix elevations and imagery
if (!datasetPixelFormat.Equals(rasterPixelFormat))
{
hasUnavailableRasterSources = true;
String reason = Logging.getMessage("generic.UnexpectedRasterType", rasterSourcePath);
Logging.logger().warning(reason);
continue;
}
}
else
{
if (AVKey.IMAGE.Equals(rasterPixelFormat) || AVKey.ELEVATION.Equals(rasterPixelFormat))
{
this.setDataSetPixelFormat((String)rasterPixelFormat);
}
else
{
hasUnavailableRasterSources = true;
String reason = Logging.getMessage("generic.UnknownFileFormat", rasterSourcePath);
Logging.logger().warning(reason);
continue;
}
}
if (null != sector)
{
extent = Sector.union(extent, sector);
this.dataRasterList.add(
new CachedDataRaster(rasterSourceFile, rasterMetadata, rasterReader, this.getCache())
);
}
else
{
hasUnavailableRasterSources = true;
String reason = Logging.getMessage("generic.NoSectorSpecified", rasterSourcePath);
Logging.logger().warning(reason);
}
}
catch (Throwable t)
{
String message = t.getMessage();
message = (WWUtil.isEmpty(message)) ? t.getCause().getMessage() : message;
Logging.logger().log(java.util.logging.Level.WARNING, message, t);
}
}
if (null != extent && extent.getDeltaLatDegrees() > 0d && extent.getDeltaLonDegrees() > 0d)
{
this.setValue(AVKey.SECTOR, extent);
}
}
catch (Throwable t)
{
String message = t.getMessage();
message = (WWUtil.isEmpty(message)) ? t.getCause().getMessage() : message;
Logging.logger().log(java.util.logging.Level.SEVERE, message, t);
}
finally
{
Logging.logger().finest(this.getStringValue(AVKey.DISPLAY_NAME) + ": " + numSources
+ " files in " + (System.currentTimeMillis() - startTime) + " milli-seconds");
}
return(!hasUnavailableRasterSources);
}