/** {@inheritDoc} */
public void loadData(final InputStream input, final String name)
throws IOException, OrekitException {
// set up a reader for line-oriented bulletin B files
final BufferedReader reader = new BufferedReader(new InputStreamReader(input));
// read all file, ignoring header
synchronized (this) {
int lineNumber = 0;
boolean inHeader = true;
for (String line = reader.readLine(); line != null; line = reader.readLine()) {
++lineNumber;
boolean parsed = false;
if (linePattern.matcher(line).matches()) {
inHeader = false;
// this is a data line, build an entry from the extracted fields
final String[] fields = line.split(" +");
final int year = Integer.parseInt(fields[YEAR_FIELD]);
final int month = Integer.parseInt(fields[MONTH_FIELD]);
final int day = Integer.parseInt(fields[DAY_FIELD]);
final int mjd = Integer.parseInt(fields[MJD_FIELD]);
if (new DateComponents(year, month, day).getMJD() == mjd) {
// the first six fields are consistent with the expected format
final double x = Double.parseDouble(fields[POLE_X_FIELD]) * ARC_SECONDS_TO_RADIANS;
final double y = Double.parseDouble(fields[POLE_Y_FIELD]) * ARC_SECONDS_TO_RADIANS;
final double dtu1 = Double.parseDouble(fields[UT1_UTC_FIELD]);
final double lod = Double.parseDouble(fields[LOD_FIELD]);
final double dpsi = Double.parseDouble(fields[DDPSI_FIELD]) * ARC_SECONDS_TO_RADIANS;
final double deps = Double.parseDouble(fields[DDEPS_FIELD]) * ARC_SECONDS_TO_RADIANS;
if (history1980 != null) {
history1980.addEntry(new EOP1980Entry(mjd, dtu1, lod, dpsi, deps));
}
if (history2000 != null) {
history2000.addEntry(new EOP2000Entry(mjd, dtu1, lod, x, y));
}
parsed = true;
}
}
if (!(inHeader || parsed)) {
throw new OrekitException(
"unable to parse line {0} in IERS data file {1}", lineNumber, name);
}
}
// check if we have read something
if (inHeader) {
throw new OrekitException("file {0} is not a supported IERS data file", name);
}
}
}
/** {@inheritDoc} */
public void loadData(final InputStream input, final String name)
throws OrekitException, IOException {
// set up a reader for line-oriented bulletin B files
final BufferedReader reader = new BufferedReader(new InputStreamReader(input));
// Extract mjd bounds from section 1
int mjdMin = -1;
int mjdMax = -1;
boolean inFinalValuesPart = false;
for (String line = reader.readLine(); line != null; line = reader.readLine()) {
Matcher matcher = finalValuesStartPattern.matcher(line);
if (matcher.matches()) {
// we are entering final values part (in section 1)
inFinalValuesPart = true;
} else if (inFinalValuesPart) {
matcher = section1DataPattern.matcher(line);
if (matcher.matches()) {
// this is a data line, build an entry from the extracted fields
final int mjd = Integer.parseInt(matcher.group(1));
if (mjdMin < 0) {
mjdMin = mjd;
} else {
mjdMax = mjd;
}
} else {
matcher = finalValuesEndPattern.matcher(line);
if (matcher.matches()) {
// we leave final values part
break;
}
}
}
}
// read the data lines in the final values part inside section 2
synchronized (this) {
boolean inSection2 = false;
for (String line = reader.readLine(); line != null; line = reader.readLine()) {
Matcher matcher = sectionHeaderPattern.matcher(line);
if (matcher.matches() && "2".equals(matcher.group(1))) {
// we are entering section 2
inSection2 = true;
} else if (inSection2) {
matcher = section2DataPattern.matcher(line);
if (matcher.matches()) {
// this is a data line, build an entry from the extracted fields
final int date = Integer.parseInt(matcher.group(1));
final double x = Double.parseDouble(matcher.group(2)) * ARC_SECONDS_TO_RADIANS;
final double y = Double.parseDouble(matcher.group(3)) * ARC_SECONDS_TO_RADIANS;
final double dtu1 = Double.parseDouble(matcher.group(4));
final double lod = Double.parseDouble(matcher.group(5)) * MILLI_SECONDS_TO_SECONDS;
final double dpsi = Double.parseDouble(matcher.group(6)) * MILLI_ARC_SECONDS_TO_RADIANS;
final double deps = Double.parseDouble(matcher.group(7)) * MILLI_ARC_SECONDS_TO_RADIANS;
if (date >= mjdMin) {
if (history1980 != null) {
history1980.addEntry(new EOP1980Entry(date, dtu1, lod, dpsi, deps));
}
if (history2000 != null) {
history2000.addEntry(new EOP2000Entry(date, dtu1, lod, x, y));
}
if (date >= mjdMax) {
// don't bother reading the rest of the file
return;
}
}
}
}
}
}
}
