// reacquire any resources like file handles
public void reacquire() throws IOException {
try {
areaReader.af = new AreaFile(location);
} catch (Throwable e) {
throw new IOException(e);
}
}
/**
* Open the service provider for reading.
*
* @param raf file to read from
* @param ncfile netCDF file we are writing to (memory)
* @param cancelTask task for cancelling
* @throws IOException problem reading file
*/
public void open(RandomAccessFile raf, NetcdfFile ncfile, CancelTask cancelTask)
throws IOException {
super.open(raf, ncfile, cancelTask);
if (areaReader == null) areaReader = new AreaReader();
try {
areaReader.init(raf.getLocation(), ncfile);
} catch (Throwable e) {
close(); // try not to leak files
throw new IOException(e);
} finally {
raf.close(); // avoid leaks
}
}
/**
* Is this a valid file?
*
* @param raf RandomAccessFile to check
* @return true if a valid McIDAS AREA file
* @throws IOException problem reading file
*/
public boolean isValidFile(RandomAccessFile raf) throws IOException {
return AreaReader.isValidFile(raf);
}
/**
* Read the data for the variable
*
* @param v2 Variable to read
* @param section section information
* @return Array of data
* @throws IOException problem reading from file
* @throws InvalidRangeException invalid Range
*/
public Array readData(Variable v2, Section section) throws IOException, InvalidRangeException {
return areaReader.readVariable(v2, section);
}
