ucar.unidata.io.RandomAccessFile.order()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中ucar.unidata.io.RandomAccessFile.order方法的一些代码示例，展示了RandomAccessFile.order的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。RandomAccessFile.order方法的具体详情如下：
包路径：ucar.unidata.io.RandomAccessFile
类名称：RandomAccessFile
方法名：order

RandomAccessFile.order介绍

[英]Change the current endian mode. Subsequent reads of short, int, float, double, long, char will use this. Does not currently affect writes. Default values is BIG_ENDIAN.
[中]更改当前的endian模式。随后读取short、int、float、double、long和char将使用此选项。目前不影响写入。默认值是BIG_ENDIAN。

代码示例

代码示例来源：origin: Unidata/thredds

  1. public Grib2RecordScanner(RandomAccessFile raf) throws IOException {
  2.  this.raf = raf;
  3.  raf.seek(0);
  4.  raf.order(RandomAccessFile.BIG_ENDIAN);
  5.  lastPos = 0;
  6.  if (debugRepeat) System.out.printf(" Grib2RecordScanner %s%n", raf.getLocation());
  7. }

代码示例来源：origin: Unidata/thredds

  1. public Grib1RecordScanner(RandomAccessFile raf) throws IOException {
  2.  this.raf = raf;
  3.  raf.seek(0);
  4.  raf.order(RandomAccessFile.BIG_ENDIAN);
  5.  lastPos = 0;
  6. }

代码示例来源：origin: edu.ucar/bufr

  1. public MessageScanner(RandomAccessFile raf, long startPos) throws IOException {
  2.  startPos = (startPos < 30) ? 0 : startPos - 30; // look for the header
  3.  this.raf = raf;
  4.  raf.seek(startPos);
  5.  raf.order(RandomAccessFile.BIG_ENDIAN);
  6.  lastPos = startPos;
  7. }

代码示例来源：origin: Unidata/thredds

  1. public MessageScanner(RandomAccessFile raf, long startPos, boolean useEmbeddedTables) throws IOException {
  2.  startPos = (startPos < 30) ? 0 : startPos - 30; // look for the header
  3.  this.raf = raf;
  4.  lastPos = startPos;
  5.  this.useEmbeddedTables = useEmbeddedTables;
  6.  raf.seek(startPos);
  7.  raf.order(RandomAccessFile.BIG_ENDIAN);
  8. }

代码示例来源：origin: Unidata/thredds

  1. private Grib2RecordScanner(RandomAccessFile raf, long startFrom) throws IOException {
  2.  this.raf = raf;
  3.  raf.seek(startFrom);
  4.  raf.order(RandomAccessFile.BIG_ENDIAN);
  5.  lastPos = startFrom;
  6. }

代码示例来源：origin: Unidata/thredds

  1. public void reacquire() throws IOException {
  2.  raf = RandomAccessFile.acquire(location);
  3.  this.raf.order(rafOrder);
  4. }

代码示例来源：origin: edu.ucar/netcdf

  1. /**
  2.  * Check if this is a valid SIGMET-IRIS file for this IOServiceProvider.
  3.  */
  4. public boolean isValidFile(ucar.unidata.io.RandomAccessFile raf) {
  5.  try {
  6.   raf.order(RandomAccessFile.LITTLE_ENDIAN);
  7.   raf.seek(24);
  8.   return (raf.readShort() == (short) 15);
  9.  } catch (IOException ioe) {
  10.   System.out.println("In isValidFile(): " + ioe.toString());
  11.   return false;
  12.  }
  13. }

代码示例来源：origin: Unidata/thredds

  1. @Override
  2. public boolean isValidFile(ucar.unidata.io.RandomAccessFile raf) throws IOException {
  3.  // this is the first time we try to read the file - if there's a problem we get a IOException
  4.  raf.seek(0);
  5.  raf.order(ByteOrder.BIG_ENDIAN);
  6.  int fileCode = raf.readInt();
  7.  if (fileCode != MAGIC)
  8.   return false;
  9.  raf.seek(28);
  10.  raf.order(ByteOrder.LITTLE_ENDIAN);
  11.  int version = raf.readInt();
  12.  if (version != VERSION)
  13.   return false;
  14.  return true;
  15. }

代码示例来源：origin: edu.ucar/cdm

  1. @Override
  2. public boolean isValidFile(ucar.unidata.io.RandomAccessFile raf) throws IOException {
  3.  // this is the first time we try to read the file - if there's a problem we get a IOException
  4.  raf.seek(0);
  5.  raf.order(ByteOrder.BIG_ENDIAN);
  6.  int fileCode = raf.readInt();
  7.  if (fileCode != MAGIC)
  8.   return false;
  9.  raf.seek(28);
  10.  raf.order(ByteOrder.LITTLE_ENDIAN);
  11.  int version = raf.readInt();
  12.  if (version != VERSION)
  13.   return false;
  14.  return true;
  15. }

代码示例来源：origin: edu.ucar/netcdf

  1. @Override
  2. public boolean isValidFile(ucar.unidata.io.RandomAccessFile raf) throws IOException {
  3.  // this is the first time we try to read the file - if there's a problem we get a IOException
  4.  raf.seek(0);
  5.  raf.order(ByteOrder.BIG_ENDIAN);
  6.  int fileCode = raf.readInt();
  7.  if (fileCode != MAGIC)
  8.   return false;
  9.  raf.seek(28);
  10.  raf.order(ByteOrder.LITTLE_ENDIAN);
  11.  int version = raf.readInt();
  12.  if (version != VERSION)
  13.   return false;
  14.  return true;
  15. }

代码示例来源：origin: edu.ucar/netcdf

  1. private static void dump(String filename) throws IOException {
  2.  System.out.printf("Dump %s%n", filename);
  3.  RandomAccessFile raf = new RandomAccessFile(filename, "r");
  4.  NetcdfFile ncfile = new MyNetcdfFile();
  5.  // its a netcdf-3 file
  6.  raf.order(RandomAccessFile.BIG_ENDIAN);
  7.  N3header headerParser = new N3header();
  8.  headerParser.read(raf, ncfile, new Formatter(System.out));
  9.  raf.close();
  10. }

代码示例来源：origin: edu.ucar/netcdf

  1. private void readHeader() throws IOException {
  2.  raf.seek(32);
  3.  raf.order(ByteOrder.LITTLE_ENDIAN);
  4.  int itype = raf.readInt();
  5.  type = assignType(itype);
  6.  bb = readBoundingBox();
  7. }

代码示例来源：origin: edu.ucar/cdm

  1. private void readHeader() throws IOException {
  2.  raf.seek(32);
  3.  raf.order(ByteOrder.LITTLE_ENDIAN);
  4.  int itype = raf.readInt();
  5.  type = assignType(itype);
  6.  bb = readBoundingBox();
  7. }

代码示例来源：origin: Unidata/thredds

  1. private void readHeader() throws IOException {
  2.  raf.seek(32);
  3.  raf.order(ByteOrder.LITTLE_ENDIAN);
  4.  int itype = raf.readInt();
  5.  type = assignType(itype);
  6.  bb = readBoundingBox();
  7. }

代码示例来源：origin: edu.ucar/netcdf

  1. HeapIdentifier(long address) throws IOException {
  2.  // header information is in le byte order
  3.  raf.order(RandomAccessFile.LITTLE_ENDIAN);
  4.  raf.seek(address);
  5.  nelems = raf.readInt();
  6.  heapAddress = readOffset();
  7.  index = raf.readInt();
  8.  if (debugDetail)
  9.   debugOut.println("   read HeapIdentifier address=" + address + this);
  10.  if (debugHeap) dump("heapIdentifier", getFileOffset(address), 16, true);
  11. }

代码示例来源：origin: edu.ucar/cdm

  1. HeapIdentifier(long address) throws IOException {
  2.  // header information is in le byte order
  3.  raf.order(RandomAccessFile.LITTLE_ENDIAN);
  4.  raf.seek(address);
  5.  nelems = raf.readInt();
  6.  heapAddress = readOffset();
  7.  index = raf.readInt();
  8.  if (debugDetail)
  9.   debugOut.println("   read HeapIdentifier address=" + address + this);
  10.  if (debugHeap) dump("heapIdentifier", getFileOffset(address), 16, true);
  11. }

代码示例来源：origin: Unidata/thredds

  1. HeapIdentifier(long address) throws IOException {
  2.  // header information is in le byte order
  3.  raf.order(RandomAccessFile.LITTLE_ENDIAN);
  4.  raf.seek(address);
  5.  nelems = raf.readInt();
  6.  heapAddress = readOffset();
  7.  index = raf.readInt();
  8.  if (debugDetail) {
  9.   log.debug("   read HeapIdentifier address=" + address + this);
  10.  }
  11.  if (debugHeap) dump("heapIdentifier", getFileOffset(address), 16, true);
  12. }

代码示例来源：origin: Unidata/thredds

  1. public Array readData(Variable v2, Section wantSection) throws IOException, InvalidRangeException {
  2.  // raf.seek(0);
  3.  raf.order(RandomAccessFile.BIG_ENDIAN);
  4.  int size = (int) wantSection.computeSize();
  5.  short[] arr = new short[size];
  6.  LayoutRegular indexer = new LayoutRegular(0, v2.getElementSize(), v2.getShape(), wantSection);
  7.  while (indexer.hasNext()) {
  8.   Layout.Chunk chunk = indexer.next();
  9.   raf.seek(chunk.getSrcPos());
  10.   raf.readShort(arr, (int) chunk.getDestElem(), chunk.getNelems()); // copy into primitive array
  11.  }
  12.  return Array.factory(v2.getDataType(), wantSection.getShape(), arr);
  13. }

代码示例来源：origin: edu.ucar/netcdf

  1. public Array readData(Variable v2, Section wantSection) throws IOException, InvalidRangeException {
  2.  // raf.seek(0);
  3.  raf.order(RandomAccessFile.BIG_ENDIAN);
  4.  int size = (int) wantSection.computeSize();
  5.  short[] arr = new short[size];
  6.  LayoutRegular indexer = new LayoutRegular(0, v2.getElementSize(), v2.getShape(), wantSection);
  7.  while (indexer.hasNext()) {
  8.   Layout.Chunk chunk = indexer.next();
  9.   raf.seek(chunk.getSrcPos());
  10.   raf.readShort(arr, (int) chunk.getDestElem(), chunk.getNelems()); // copy into primitive array
  11.  }
  12.  return Array.factory(v2.getDataType().getPrimitiveClassType(), wantSection.getShape(), arr);
  13. }

代码示例来源：origin: edu.ucar/cdm

  1. public Array readData(Variable v2, Section wantSection) throws IOException, InvalidRangeException {
  2.  // raf.seek(0);
  3.  raf.order(RandomAccessFile.BIG_ENDIAN);
  4.  int size = (int) wantSection.computeSize();
  5.  short[] arr = new short[size];
  6.  LayoutRegular indexer = new LayoutRegular(0, v2.getElementSize(), v2.getShape(), wantSection);
  7.  while (indexer.hasNext()) {
  8.   Layout.Chunk chunk = indexer.next();
  9.   raf.seek(chunk.getSrcPos());
  10.   raf.readShort(arr, (int) chunk.getDestElem(), chunk.getNelems()); // copy into primitive array
  11.  }
  12.  return Array.factory(v2.getDataType().getPrimitiveClassType(), wantSection.getShape(), arr);
  13. }

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