/**
* Sync the file
*
* @return true if needed to sync
* @throws IOException problem synching the file
*/
public boolean sync() throws IOException {
// printStack("***************************** sync ************************", 100);
// System.out.printf("check sync on %s (%s) %n", raf.getLocation(),
// Calendar.getInstance().getTime());
if (gemreader.getInitFileSize() < raf.length()) {
long start = System.currentTimeMillis();
Trace.msg(
"GEMPAKStationIOSP.sync: file "
+ raf.getLocation()
+ " is bigger: "
+ raf.length()
+ " > "
+ gemreader.getInitFileSize());
Trace.call1("GEMPAKStationIOSP.sync: reader.init");
gemreader.init(raf, true);
Trace.call2("GEMPAKStationIOSP.sync: reader.init");
Trace.call1("GEMPAKStationIOSP.sync: buildNCFile");
// reconstruct the ncfile objects
buildNCFile();
Trace.call2("GEMPAKSIOSP.sync: buildNCFile");
// System.out.printf("sync on %s took %d msecs%n", raf.getLocation(),
// (System.currentTimeMillis()-start));
return true;
}
return false;
}
/**
* Is this a valid file?
*
* @param raf RandomAccessFile to check
* @return true if a valid Gempak grid file
* @throws IOException problem reading file
*/
public boolean isValidFile(RandomAccessFile raf) throws IOException {
try {
gemreader = makeStationReader();
Trace.call1("GEMPAKSIOSP.isValidFile: reader.init");
gemreader.init(raf, false);
Trace.call2("GEMPAKSIOSP.isValidFile: reader.init");
} catch (Exception ioe) {
return false;
}
return true;
}
/** Add on global attributes for all types */
protected void addGlobalAttributes() {
// global stuff
ncfile.addAttribute(null, new Attribute("Conventions", getConventions()));
String fileType = "GEMPAK " + gemreader.getFileType();
ncfile.addAttribute(null, new Attribute("file_format", fileType));
ncfile.addAttribute(
null,
new Attribute(
"history",
"Direct read of "
+ fileType
+ " into NetCDF-Java 4.2 API")); // at " + dateFormat.toDateTimeStringISO(new
// Date())));
ncfile.addAttribute(null, new Attribute(CF.FEATURE_TYPE, getCFFeatureType()));
}
/**
* Make a structure for the part
*
* @param partName partname
* @param dimensions dimensions for the structure
* @param includeMissing true to include the missing variable
* @return a Structure
*/
protected Structure makeStructure(String partName, List dimensions, boolean includeMissing) {
List<GempakParameter> params = gemreader.getParameters(partName);
if (params == null) {
return null;
}
Structure sVar = new Structure(ncfile, null, null, partName);
sVar.setDimensions(dimensions);
for (GempakParameter param : params) {
sVar.addMemberVariable(makeParamVariable(param, null));
}
if (includeMissing) {
sVar.addMemberVariable(makeMissingVariable());
}
return sVar;
}
/**
* 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 {
// System.out.printf("GempakSurfaceIOSP open %s (%s) %n", raf.getLocation(),
// Calendar.getInstance().getTime());
this.raf = raf;
this.ncfile = ncfile;
long start = System.currentTimeMillis();
if (gemreader == null) {
gemreader = makeStationReader();
}
Trace.call1("GEMPAKStationIOSP.open: initTables");
initTables();
Trace.call2("GEMPAKStationIOSP.open: initTables");
Trace.call1("GEMPAKStationIOSP.open: reader.init");
gemreader.init(raf, true);
Trace.call2("GEMPAKStationIOSP.open: reader.init");
buildNCFile();
}
/**
* Make the station variables from a representative station
*
* @param stations list of stations
* @param dim station dimension
* @return the list of variables
*/
protected List<Variable> makeStationVars(List<GempakStation> stations, Dimension dim) {
int numStations = stations.size();
boolean useSTID = true;
for (GempakStation station : stations) {
if (station.getSTID().equals("")) {
useSTID = false;
break;
}
}
List<Variable> vars = new ArrayList<Variable>();
List<String> stnKeyNames = gemreader.getStationKeyNames();
for (String varName : stnKeyNames) {
Variable v = makeStationVariable(varName, dim);
// use STNM or STID as the name or description
Attribute stIDAttr = new Attribute("standard_name", "station_id");
if (varName.equals(GempakStation.STID) && useSTID) {
v.addAttribute(stIDAttr);
}
if (varName.equals(GempakStation.STNM) && !useSTID) {
v.addAttribute(stIDAttr);
}
vars.add(v);
}
// see if we fill these in completely now
if ((dim != null) && (numStations > 0)) {
for (Variable v : vars) {
Array varArray;
if (v.getDataType().equals(DataType.CHAR)) {
int[] shape = v.getShape();
varArray = new ArrayChar.D2(shape[0], shape[1]);
} else {
varArray = get1DArray(v.getDataType(), numStations);
}
int index = 0;
String varname = v.getFullName();
for (GempakStation stn : stations) {
String test = "";
if (varname.equals(GempakStation.STID)) {
test = stn.getName();
} else if (varname.equals(GempakStation.STNM)) {
((ArrayInt.D1) varArray)
.set(
index,
// (int) (stn.getSTNM() / 10));
(int) (stn.getSTNM()));
} else if (varname.equals(GempakStation.SLAT)) {
((ArrayFloat.D1) varArray).set(index, (float) stn.getLatitude());
} else if (varname.equals(GempakStation.SLON)) {
((ArrayFloat.D1) varArray).set(index, (float) stn.getLongitude());
} else if (varname.equals(GempakStation.SELV)) {
((ArrayFloat.D1) varArray).set(index, (float) stn.getAltitude());
} else if (varname.equals(GempakStation.STAT)) {
test = stn.getSTAT();
} else if (varname.equals(GempakStation.COUN)) {
test = stn.getCOUN();
} else if (varname.equals(GempakStation.STD2)) {
test = stn.getSTD2();
} else if (varname.equals(GempakStation.SPRI)) {
((ArrayInt.D1) varArray).set(index, stn.getSPRI());
} else if (varname.equals(GempakStation.SWFO)) {
test = stn.getSWFO();
} else if (varname.equals(GempakStation.WFO2)) {
test = stn.getWFO2();
}
if (!test.equals("")) {
((ArrayChar.D2) varArray).setString(index, test);
}
index++;
}
v.setCachedData(varArray, false);
}
}
return vars;
}