Java Code Examples for ucar.unidata.io.RandomAccessFile#getLocation()

public void setHdf5File(RandomAccessFile raf) throws IOException {
  closeOpenFiles();

  this.location = raf.getLocation();
  List<ObjectBean> beanList = new ArrayList<>();

  iosp = new H5iospNew();
  NetcdfFile ncfile = new NetcdfFileSubclass(iosp, location);
  ncfile.sendIospMessage(H5iospNew.IOSP_MESSAGE_INCLUDE_ORIGINAL_ATTRIBUTES);

  try {
    iosp.open(raf, ncfile, null);
  } catch (Throwable t) {
    StringWriter sw = new StringWriter(20000);
    PrintWriter s = new PrintWriter(sw);
    t.printStackTrace(s);
    dumpTA.setText(sw.toString());
  }

  H5headerNew header = iosp.getHeader();
  for (H5objects.DataObject dataObj : header.getDataObjects()) {
    beanList.add(new ObjectBean(dataObj));
  }

  objectTable.setBeans(beanList);
}
 

/**
 * 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);
  // debugProj = true;
  long start = System.currentTimeMillis();
  if (gemreader == null) {
    gemreader = new GempakGridReader(raf.getLocation());
  }
  initTables();
  gemreader.init(raf, true);
  GridIndex index = gemreader.getGridIndex();
  open(index, cancelTask);
  if (debugOpen) {
    System.out.println(
        " GridServiceProvider.open " + ncfile.getLocation() + " took " + (System.currentTimeMillis() - start));
  }
}
 

void setHdf4File(RandomAccessFile raf) throws IOException {
  closeOpenFiles();

  this.location = raf.getLocation();
  List<TagBean> beanList = new ArrayList<>();

  iosp = new H4iosp();
  NetcdfFile ncfile = new NetcdfFileSubclass(iosp, location);

  try {
    iosp.open(raf, ncfile, null);
  } catch (Throwable t) {
    StringWriter sw = new StringWriter(20000);
    t.printStackTrace(new PrintWriter(sw));
    dumpTA.setText(sw.toString());
  }

  header = (H4header) iosp.sendIospMessage("header");
  for (H4header.Tag tag : header.getTags()) {
    beanList.add(new TagBean(tag));
  }

  tagTable.setBeans(beanList);
}
 

void setHdf4File(RandomAccessFile raf) throws IOException {
  closeOpenFiles();

  this.location = raf.getLocation();
  List<TagBean> beanList = new ArrayList<>();

  iosp = new H4iosp();
  NetcdfFile ncfile = new NetcdfFileSubclass(iosp, location);

  try {
    iosp.open(raf, ncfile, null);
  } catch (Throwable t) {
    StringWriter sw = new StringWriter(20000);
    t.printStackTrace(new PrintWriter(sw));
    dumpTA.setText(sw.toString());
  }

  header = (H4header) iosp.sendIospMessage("header");
  for (H4header.Tag tag : header.getTags()) {
    beanList.add(new TagBean(tag));
  }

  tagTable.setBeans(beanList);
}
 

/**
 * Is this a valid file? For this GrADS IOSP, the valid file must be:
 * <ul>
 * <li>raw binary grid (not GRIB, netCDF, HDF, etc)
 * <li>not a cross section (x and y > 1)
 * <li>not an ensemble definded by EDEF/ENDEDEF (need examples)
 * </ul>
 *
 * @param raf RandomAccessFile to check
 * @return true if a valid GrADS grid file of the type listed above
 * @throws IOException problem reading file
 */
public boolean isValidFile(RandomAccessFile raf) throws IOException {
  // need a fast failure for non-GRADS files
  if (GradsDataDescriptorFile.failFast(raf))
    return false;
  raf.seek(0);

  // we think its a GRADS file, but we have lots of restrictions on what we can handle
  try {
    gradsDDF = new GradsDataDescriptorFile(raf.getLocation(), 5000);
    if (gradsDDF.error)
      return false;

    GradsDimension x = gradsDDF.getXDimension();
    GradsDimension y = gradsDDF.getYDimension();
    // J-

    return gradsDDF.getDataType() == null && // only handle raw binary
        gradsDDF.getDataFile() != null && !gradsDDF.hasProjection() && // can't handle projections
        !gradsDDF.getVariables().isEmpty() && // must have valid entries
        !gradsDDF.getDimensions().isEmpty() && (x.getSize() > 1) && (y.getSize() > 1); // can't handle cross sections
    // J+
  } catch (Exception ioe) {
    return false;
  }
}
 

/**
 * Create a grib collection / partition collection from an existing ncx2 file.
 * PartionCollection.partition.getGribCollection().
 *
 * @param indexRaf the ncx2 file already open
 * @param config special configuration
 * @return the resulting GribCollection, or null on failure
 * @throws IOException on io error
 */
@Nullable
public static GribCollectionImmutable openGribCollectionFromIndexFile(RandomAccessFile indexRaf,
    FeatureCollectionConfig config, org.slf4j.Logger logger) throws IOException {

  GribCollectionType type = getType(indexRaf);

  String location = indexRaf.getLocation();
  File f = new File(location);
  int pos = f.getName().lastIndexOf(".");
  String name = (pos > 0) ? f.getName().substring(0, pos) : f.getName(); // remove ".ncx2"

  switch (type) {
    case Partition1:
      return Grib1PartitionBuilderFromIndex.createTimePartitionFromIndex(name, indexRaf, config, logger);
    case GRIB1:
      return Grib1CollectionBuilderFromIndex.readFromIndex(name, indexRaf, config, logger);
    case Partition2:
      return Grib2PartitionBuilderFromIndex.createTimePartitionFromIndex(name, indexRaf, config, logger);
    case GRIB2:
      return Grib2CollectionBuilderFromIndex.readFromIndex(name, indexRaf, config, logger);
  }

  return null;
}
 

@Deprecated
@Override
public void open(RandomAccessFile raf, NetcdfFile ncfile, CancelTask cancelTask) throws IOException {
  super.open(raf, ncfile, cancelTask);

  String location = raf.getLocation();
  if (!location.startsWith("http:")) {
    File file = new File(location);
    if (file.exists())
      lastModified = file.lastModified();
  }

  raf.order(RandomAccessFile.BIG_ENDIAN);
  header = createHeader();

  Group.Builder rootGroup = Group.builder().setName("").setNcfile(ncfile);
  header.read(raf, rootGroup, null);
  ncfile.setRootGroup(rootGroup.build());
  ncfile.finish();
}
 

@Override
public void build(RandomAccessFile raf, Group.Builder rootGroup, CancelTask cancelTask) throws IOException {
  super.open(raf, rootGroup.getNcfile(), cancelTask);

  String location = raf.getLocation();
  if (!location.startsWith("http:")) {
    File file = new File(location);
    if (file.exists())
      lastModified = file.lastModified();
  }

  raf.order(RandomAccessFile.BIG_ENDIAN);
  header = createHeader();
  header.read(raf, rootGroup, null);
}
 

private BufrConfig(RandomAccessFile raf) {
  this.filename = raf.getLocation();
  try {
    scanBufrFile(raf);
  } catch (Exception e) {
    e.printStackTrace();
    throw new RuntimeException(e.getMessage());
  }
}
 

/**
 * public by accident, do not use
 *
 * @param indexRaf the open raf of the index file
 */
void setIndexRaf(RandomAccessFile indexRaf) {
  this.indexRaf = indexRaf;
  if (indexRaf != null) {
    this.indexFilename = indexRaf.getLocation();
  }
}
 

/**
 *
 */
public void setHdf5File(RandomAccessFile raf) throws IOException {
  closeOpenFiles();

  this.location = raf.getLocation();
  List<ObjectBean> beanList = new ArrayList<>();

  iosp = new H5iosp();
  NetcdfFile ncfile = new NetcdfFileSubclass(iosp, location);
  ncfile.sendIospMessage(H5iosp.IOSP_MESSAGE_INCLUDE_ORIGINAL_ATTRIBUTES);

  try {
    iosp.open(raf, ncfile, null);
  } catch (Throwable t) {
    StringWriter sw = new StringWriter(20000);
    PrintWriter s = new PrintWriter(sw);
    t.printStackTrace(s);
    dumpTA.setText(sw.toString());
  }

  H5header header = (H5header) iosp.sendIospMessage("header");
  for (H5header.DataObject dataObj : header.getDataObjects()) {
    beanList.add(new ObjectBean(dataObj));
  }

  objectTable.setBeans(beanList);
}
 

@Override
public void open(RandomAccessFile raff, NetcdfFile ncfile, CancelTask cancelTask) throws IOException {
  String dataFile = raff.getLocation();
  int pos = dataFile.lastIndexOf(".");
  String base = dataFile.substring(0, pos);
  String ext = dataFile.substring(pos);

  if (ext.equals(IDX_EXT)) {
    dataRaf = RandomAccessFile.acquire(base + DAT_EXT);
    stnRaf = RandomAccessFile.acquire(base + STN_EXT);

  } else if (ext.equals(DAT_EXT)) {
    dataRaf = raff;
    stnRaf = RandomAccessFile.acquire(base + STN_EXT);

  } else {
    stnRaf = raff;
    dataRaf = RandomAccessFile.acquire(base + DAT_EXT);
  }

  NcmlConstructor ncmlc = new NcmlConstructor();
  if (!ncmlc.populateFromResource("resources/nj22/iosp/ghcnm.ncml", ncfile)) {
    throw new IllegalStateException(ncmlc.getErrlog().toString());
  }
  ncfile.finish();

  dataVinfo = setVinfo(dataRaf, ncfile, dataPattern, "all_data");
  stnVinfo = setVinfo(stnRaf, ncfile, stnPattern, "station");

  StructureMembers.Member m = stnVinfo.sm.findMember(STNID);
  StructureDataRegexp.VinfoField f = (StructureDataRegexp.VinfoField) m.getDataObject();
  stn_fldno = f.fldno;

  // make index file if needed
  File idxFile = new File(base + IDX_EXT);
  if (!idxFile.exists())
    makeIndex(stnVinfo, dataVinfo, idxFile);
  else
    readIndex(idxFile.getPath());
}
 

public boolean isValidFileOld(RandomAccessFile raf) {
  try {
    String loc = raf.getLocation();
    int posFirst = loc.lastIndexOf('/') + 1;
    if (posFirst < 0)
      posFirst = 0;
    String stationId = loc.substring(posFirst, posFirst + 4);
    NexradStationDB.init();
    NexradStationDB.Station station = NexradStationDB.get("K" + stationId);
    return station != null;
  } catch (IOException ioe) {
    return false;
  }
}
 

/**
 * Check to see if this is a valid AREA file.
 *
 * @param raf the file in question
 * @return true if it is an AREA file.
 */
public static boolean isValidFile(RandomAccessFile raf) {
  String fileName = raf.getLocation();
  AreaFile af = null;
  try {
    af = new AreaFile(fileName); // LOOK opening again not ok for isValidFile
    return true;
  } catch (AreaFileException e) {
    return false; // barfola
  } finally {
    if (af != null)
      af.close(); // LOOK need to look at this code
  }
}
 

/**
 * 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 = new GempakGridReader(raf.getLocation());
    return gemreader.init(raf, false);
  } catch (Exception ioe) {
    return false;
  }
}
 

@Override
public void open(RandomAccessFile raf, NetcdfFile ncfile, CancelTask cancelTask) throws IOException {
  this.raf = raf;
  this.location = (raf != null) ? raf.getLocation() : null;
  this.ncfile = ncfile;
}
 

protected boolean readIndex(RandomAccessFile raf) {
  this.idxFilename = raf.getLocation();

  try {
    raf.order(RandomAccessFile.BIG_ENDIAN);
    raf.seek(0);

    //// header message
    if (!NcStream.readAndTest(raf, MAGIC_START.getBytes(StandardCharsets.UTF_8))) {
      log.error("BufrCdmIndex {}: invalid index", raf.getLocation());
      return false;
    }

    int indexVersion = raf.readInt();
    boolean versionOk = (indexVersion == version);
    if (!versionOk) {
      log.warn("BufrCdmIndex {}: index found version={}, want version= {}", raf.getLocation(), indexVersion, version);
      return false;
    }

    int size = NcStream.readVInt(raf);
    if ((size < 0) || (size > 100 * 1000 * 1000)) {
      log.warn("BufrCdmIndex {}: invalid or empty index ", raf.getLocation());
      return false;
    }

    byte[] m = new byte[size];
    raf.readFully(m);

    BufrCdmIndexProto.BufrIndex proto = BufrCdmIndexProto.BufrIndex.parseFrom(m);
    bufrFilename = proto.getFilename();
    root = proto.getRoot();
    stations = proto.getStationsList();
    start = proto.getStart();
    end = proto.getEnd();
    nobs = proto.getNobs();

    // showProtoRoot(root);

  } catch (Throwable t) {
    log.error("Error reading index " + raf.getLocation(), t);
    return false;
  }

  return true;
}
 

private BufrConfig(RandomAccessFile raf, Message m) throws IOException {
  this.filename = raf.getLocation();
  this.messHash = m.hashCode();
  this.rootConverter = new FieldConverter(m.ids.getCenterId(), m.getRootDataDescriptor());
  standardFields = StandardFields.extract(m);
}
 

EmbeddedTable(Message m, RandomAccessFile raf) {
  this.raf = raf;
  this.ids = m.ids;
  b = new TableB("embed", raf.getLocation());
  d = new TableD("embed", raf.getLocation());
}
 

/**
 * Initialize the file, read in all the metadata (ala DM_OPEN)
 *
 * @param raf RandomAccessFile to read.
 * @param fullCheck if true, check entire structure
 * @return A GempakGridReader
 * @throws IOException problem reading file
 */
public static GempakGridReader getInstance(RandomAccessFile raf, boolean fullCheck) throws IOException {
  GempakGridReader ggr = new GempakGridReader(raf.getLocation());
  ggr.init(raf, fullCheck);
  return ggr;
}