private TreeMap<Double, Vector<Double>> readUntunable() {
TreeMap<Double, Vector<Double>> rtn = null;
// Get the file
String cfgFilename = System.getProperty("ot.cfgdir");
if (!cfgFilename.endsWith("/")) cfgFilename += '/';
cfgFilename += "untunable.dat";
URL url = ObservingToolUtilities.resourceURL(cfgFilename);
if (url == null) {
System.out.println("Unable to find file " + cfgFilename);
return rtn;
}
// If we get here, we have the file so create a new TreeMap and
// start reading the file
rtn = new TreeMap<Double, Vector<Double>>();
try {
InputStream is = url.openStream();
BufferedReader in = new BufferedReader(new InputStreamReader(is));
String inputLine;
while ((inputLine = in.readLine()) != null) {
if (inputLine.startsWith("#") || inputLine.equals("")) continue;
StringTokenizer st = new StringTokenizer(inputLine);
Vector<Double> values = new Vector<Double>();
if (st.countTokens() == 1) {
values.add(Double.parseDouble(st.nextToken()) * 1.0e9);
} else if (st.countTokens() == 2) {
values.add(Double.parseDouble(st.nextToken()) * 1.0e9);
values.add(Double.parseDouble(st.nextToken()) * 1.0e9);
} else {
continue;
}
rtn.put(values.firstElement(), values);
}
in.close();
is.close();
} catch (Exception e) {
e.printStackTrace();
return null;
}
return rtn;
}
/**
* Read the receiver temperature file and get the data for the specified front end. The return is
* a TreeMap with frequency as the key and TRx as the value.
*/
public TreeMap<Double, Double> getTRx(String feName) {
TreeMap<Double, Double> tRx = null;
// Get the receiver temperature and open it
String cfgFilename = System.getProperty("ot.cfgdir");
if (!cfgFilename.endsWith("/")) cfgFilename += '/';
cfgFilename += "receiver.info";
URL url = ObservingToolUtilities.resourceURL(cfgFilename);
// Read in the data for the current front-end
if (url != null) {
try {
String inputLine;
InputStream is = url.openStream();
BufferedReader in = new BufferedReader(new InputStreamReader(is));
// Skip over the header
while (true) {
while ((inputLine = in.readLine()) != null) {
if (inputLine.equals("")) break;
}
if (inputLine == null) break;
// Now keep reading the file until we find the feName
lowF = Double.valueOf(new String(in.readLine())); // Low
// frequency
// limit
lowF = lowF * 1.0e9;
highF = Double.valueOf(new String(in.readLine())); // High
// frequency
// limit
highF = highF * 1.0e9;
in.readLine(); // Number of sidebands
if (in.readLine().equalsIgnoreCase(feName)) {
// We can start reading in the data
int nLines = Integer.valueOf(in.readLine());
tRx = new TreeMap<Double, Double>();
for (int i = 0; i < nLines; i++) {
String values = in.readLine();
StringTokenizer st = new StringTokenizer(values);
Double frequency = Double.parseDouble(st.nextToken()) * 1.0e9;
Double trx = Double.parseDouble(st.nextToken());
tRx.put(frequency, trx);
}
break;
} else {
// Read up to the next blank line
continue;
}
}
in.close();
is.close();
} catch (IOException ex) {
System.out.println(
"Error reading receiver file: " + System.getProperty("ot.cfgdir") + "receiver.info");
}
} else {
System.out.println(
"Receiver info file does not exist: "
+ System.getProperty("ot.cfgdir")
+ "receiver.info");
}
return tRx;
}