private CoordinateReferenceSystem getCRS(Object source) {
CoordinateReferenceSystem crs = null;
if (source instanceof File
|| (source instanceof URL && (((URL) source).getProtocol() == "file"))) {
// getting name for the prj file
final String sourceAsString;
if (source instanceof File) {
sourceAsString = ((File) source).getAbsolutePath();
} else {
String auth = ((URL) source).getAuthority();
String path = ((URL) source).getPath();
if (auth != null && !auth.equals("")) {
sourceAsString = "//" + auth + path;
} else {
sourceAsString = path;
}
}
final int index = sourceAsString.lastIndexOf(".");
final String base =
index > 0 ? sourceAsString.substring(0, index) + ".prj" : sourceAsString + ".prj";
// does it exist?
final File prjFile = new File(base.toString());
if (prjFile.exists()) {
// it exists then we have top read it
PrjFileReader projReader = null;
FileInputStream instream = null;
try {
instream = new FileInputStream(prjFile);
final FileChannel channel = instream.getChannel();
projReader = new PrjFileReader(channel);
crs = projReader.getCoordinateReferenceSystem();
} catch (FileNotFoundException e) {
// warn about the error but proceed, it is not fatal
// we have at least the default crs to use
LOGGER.log(Level.INFO, e.getLocalizedMessage(), e);
} catch (IOException e) {
// warn about the error but proceed, it is not fatal
// we have at least the default crs to use
LOGGER.log(Level.INFO, e.getLocalizedMessage(), e);
} catch (FactoryException e) {
// warn about the error but proceed, it is not fatal
// we have at least the default crs to use
LOGGER.log(Level.INFO, e.getLocalizedMessage(), e);
} finally {
if (projReader != null)
try {
projReader.close();
} catch (IOException e) {
// warn about the error but proceed, it is not fatal
// we have at least the default crs to use
LOGGER.log(Level.FINE, e.getLocalizedMessage(), e);
}
if (instream != null)
try {
instream.close();
} catch (IOException e) {
// warn about the error but proceed, it is not fatal
// we have at least the default crs to use
LOGGER.log(Level.FINE, e.getLocalizedMessage(), e);
}
}
}
}
return crs;
}
/**
* Gets the coordinate reference system that will be associated to the {@link GridCoverage} by
* looking for a related PRJ.
*/
protected void parsePRJFile() {
String prjPath = null;
this.crs = null;
prjPath = this.parentPath + File.separatorChar + coverageName + ".prj";
// read the prj serviceInfo from the file
PrjFileReader projReader = null;
FileInputStream inStream = null;
FileChannel channel = null;
try {
final File prj = new File(prjPath);
if (prj.exists() && prj.canRead()) {
inStream = new FileInputStream(prj);
channel = inStream.getChannel();
projReader = new PrjFileReader(channel);
this.crs = projReader.getCoordinateReferenceSystem();
}
// If some exception occurs, warn about the error but proceed
// using a default CRS
} catch (FileNotFoundException e) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(Level.WARNING, e.getLocalizedMessage(), e);
}
} catch (IOException e) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(Level.WARNING, e.getLocalizedMessage(), e);
}
} catch (FactoryException e) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(Level.WARNING, e.getLocalizedMessage(), e);
}
} finally {
if (projReader != null) {
try {
projReader.close();
} catch (IOException e) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(Level.WARNING, e.getLocalizedMessage(), e);
}
}
}
if (inStream != null) {
try {
inStream.close();
} catch (Throwable e) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(Level.WARNING, e.getLocalizedMessage(), e);
}
}
}
if (channel != null) {
try {
channel.close();
} catch (Throwable e) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(Level.WARNING, e.getLocalizedMessage(), e);
}
}
}
}
}