ucar.unidata.io.RandomAccessFile.readBytes()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.readBytes方法的一些代码示例，展示了RandomAccessFile.readBytes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.readBytes方法的具体详情如下：
包路径：ucar.unidata.io.RandomAccessFile
类名称：RandomAccessFile
方法名：readBytes

RandomAccessFile.readBytes介绍

[英]Read fully count number of bytes
[中]读取完全计数字节数

代码示例

代码示例来源：origin: edu.ucar/netcdf

  1. /**
  2.  * Read up to <code>b.length( )</code> bytes into an array. This
  3.  * will block until at least one byte has been read.
  4.  *
  5.  * @param b the byte array to receive the bytes.
  6.  * @return the actual number of bytes read, or -1 if there is not
  7.  *         more data due to the end of the file being reached.
  8.  * @throws IOException if an I/O error occurrs.
  9.  */
  10. public int read(byte b[]) throws IOException {
  11.  return readBytes(b, 0, b.length);
  12. }

代码示例来源：origin: edu.ucar/cdm

  1. /**
  2.  * Read up to <code>b.length( )</code> bytes into an array. This
  3.  * will block until at least one byte has been read.
  4.  *
  5.  * @param b the byte array to receive the bytes.
  6.  * @return the actual number of bytes read, or -1 if there is not
  7.  *         more data due to the end of the file being reached.
  8.  * @throws IOException if an I/O error occurrs.
  9.  */
  10. public int read(byte b[]) throws IOException {
  11.  return readBytes(b, 0, b.length);
  12. }

代码示例来源：origin: Unidata/thredds

  1. /**
  2.  * Read up to <code>b.length( )</code> bytes into an array. This
  3.  * will block until at least one byte has been read.
  4.  *
  5.  * @param b the byte array to receive the bytes.
  6.  * @return the actual number of bytes read, or -1 if there is not
  7.  *         more data due to the end of the file being reached.
  8.  * @throws IOException if an I/O error occurrs.
  9.  */
  10. public int read(byte b[]) throws IOException {
  11.  return readBytes(b, 0, b.length);
  12. }

代码示例来源：origin: edu.ucar/unidataCommon

  1. /**
  2.  * Read up to <code>b.length( )</code> bytes into an array. This
  3.  * will block until at least one byte has been read.
  4.  *
  5.  * @param b the byte array to receive the bytes.
  6.  * @return the actual number of bytes read, or -1 if there is not
  7.  *         more data due to the end of the file being reached.
  8.  * @throws IOException if an I/O error occurrs.
  9.  */
  10. public int read(byte b[]) throws IOException {
  11.  return readBytes(b, 0, b.length);
  12. }

代码示例来源：origin: edu.ucar/unidataCommon

  1. /**
  2.  * Read up to <code>len</code> bytes into an array, at a specified
  3.  * offset. This will block until at least one byte has been read.
  4.  *
  5.  * @param b   the byte array to receive the bytes.
  6.  * @param off the offset in the array where copying will start.
  7.  * @param len the number of bytes to copy.
  8.  * @return the actual number of bytes read, or -1 if there is not
  9.  *         more data due to the end of the file being reached.
  10.  * @throws IOException if an I/O error occurrs.
  11.  */
  12. public int read(byte b[], int off, int len) throws IOException {
  13.  return readBytes(b, off, len);
  14. }

代码示例来源：origin: edu.ucar/netcdf

  1. /**
  2.  * Read up to <code>len</code> bytes into an array, at a specified
  3.  * offset. This will block until at least one byte has been read.
  4.  *
  5.  * @param b   the byte array to receive the bytes.
  6.  * @param off the offset in the array where copying will start.
  7.  * @param len the number of bytes to copy.
  8.  * @return the actual number of bytes read, or -1 if there is not
  9.  *         more data due to the end of the file being reached.
  10.  * @throws IOException if an I/O error occurrs.
  11.  */
  12. public int read(byte b[], int off, int len) throws IOException {
  13.  return readBytes(b, off, len);
  14. }

代码示例来源：origin: edu.ucar/cdm

  1. /**
  2.  * Read up to <code>len</code> bytes into an array, at a specified
  3.  * offset. This will block until at least one byte has been read.
  4.  *
  5.  * @param b   the byte array to receive the bytes.
  6.  * @param off the offset in the array where copying will start.
  7.  * @param len the number of bytes to copy.
  8.  * @return the actual number of bytes read, or -1 if there is not
  9.  *         more data due to the end of the file being reached.
  10.  * @throws IOException if an I/O error occurrs.
  11.  */
  12. public int read(byte b[], int off, int len) throws IOException {
  13.  return readBytes(b, off, len);
  14. }

代码示例来源：origin: Unidata/thredds

  1. /**
  2.  * Read up to <code>len</code> bytes into an array, at a specified
  3.  * offset. This will block until at least one byte has been read.
  4.  *
  5.  * @param b   the byte array to receive the bytes.
  6.  * @param off the offset in the array where copying will start.
  7.  * @param len the number of bytes to copy.
  8.  * @return the actual number of bytes read, or -1 if there is not
  9.  *         more data due to the end of the file being reached.
  10.  * @throws IOException if an I/O error occurrs.
  11.  */
  12. public int read(byte b[], int off, int len) throws IOException {
  13.  return readBytes(b, off, len);
  14. }

代码示例来源：origin: edu.ucar/netcdf

  1. private boolean endRecord(RandomAccessFile raf) throws IOException {
  2.  if (showSkip) System.out.print(" endRecord start at " + raf.getFilePointer());
  3.  int skipped = 0;
  4.  String endRecord = new String(raf.readBytes(10));
  5.  while (endRecord.equals("END RECORD")) {
  6.   endRecord = new String(raf.readBytes(10));
  7.   skipped++;
  8.  }
  9.  if (showSkip) System.out.println(" last 10 chars= " + endRecord + " skipped= " + skipped);
  10.  return true;
  11. }

代码示例来源：origin: edu.ucar/cdm

  1. void show(RandomAccessFile raf) throws IOException {
  2.  raf.seek(filePos);
  3.  byte[] b = raf.readBytes(40);
  4.  System.out.println(new String(b, CDM.utf8Charset));
  5. }

代码示例来源：origin: Unidata/thredds

  1. void show(RandomAccessFile raf) throws IOException {
  2.  raf.seek(filePos);
  3.  byte[] b = raf.readBytes(40);
  4.  System.out.println(new String(b, CDM.utf8Charset));
  5. }

代码示例来源：origin: edu.ucar/netcdf

  1. void show(RandomAccessFile raf) throws IOException {
  2.  raf.seek(filePos);
  3.  byte[] b = raf.readBytes(40);
  4.  System.out.println(new String(b));
  5. }

代码示例来源：origin: edu.ucar/netcdf

  1. List<Record> readData() throws IOException {
  2.  List<Record> records = new ArrayList<Record>();
  3.  raf.seek(filePos + 40);
  4.  byte[] b = raf.readBytes(reportLen - 40);
  5.  if (showData) System.out.println("\n" + new String(b));
  6.  if (showData) System.out.println(this);
  7.  int offset = 0;
  8.  while (true) {
  9.   Record record = new Record();
  10.   offset = record.read(b, offset);
  11.   records.add(record);
  12.   if (record.next >= reportLen / 10) break;
  13.  }
  14.  return records;
  15. }

代码示例来源：origin: edu.ucar/cdm

  1. List<Record> readData() throws IOException {
  2.  List<Record> records = new ArrayList<>();
  3.  raf.seek(filePos + 40);
  4.  byte[] b = raf.readBytes(reportLen - 40);
  5.  if (showData) System.out.println("\n" + new String(b, CDM.utf8Charset));
  6.  if (showData) System.out.println(this);
  7.  int offset = 0;
  8.  while (true) {
  9.   Record record = new Record();
  10.   offset = record.read(b, offset);
  11.   records.add(record);
  12.   if (record.next >= reportLen / 10) break;
  13.  }
  14.  return records;
  15. }

代码示例来源：origin: edu.ucar/cdm

  1. public boolean isValidFile(RandomAccessFile raf) throws IOException {
  2.  raf.seek(0);
  3.  if (raf.length() < 60) return false;
  4.  byte[] h = raf.readBytes(60);
  5.  // 32 - 56 are X's
  6.  for (int i = 32; i < 56; i++)
  7.   if (h[i] != (byte) 'X') return false;
  8.  try {
  9.   short hour = Short.parseShort(new String(h, 0, 2, CDM.utf8Charset));
  10.   short minute = Short.parseShort(new String(h, 2, 2, CDM.utf8Charset));
  11.   short year = Short.parseShort(new String(h, 4, 2, CDM.utf8Charset));
  12.   short month = Short.parseShort(new String(h, 6, 2, CDM.utf8Charset));
  13.   short day = Short.parseShort(new String(h, 8, 2, CDM.utf8Charset));
  14.   if ((hour < 0) || (hour > 24)) return false;
  15.   if ((minute < 0) || (minute > 60)) return false;
  16.   if ((year < 0) || (year > 100)) return false;
  17.   if ((month < 0) || (month > 12)) return false;
  18.   if ((day < 0) || (day > 31)) return false;
  19.  } catch (Exception e) {
  20.   return false;
  21.  }
  22.  return true;
  23. }

代码示例来源：origin: edu.ucar/netcdf

  1. public boolean isValidFile(RandomAccessFile raf) throws IOException {
  2.  raf.seek(0);
  3.  if (raf.length() < 60) return false;
  4.  byte[] h = raf.readBytes(60);
  5.  // 32 - 56 are X's
  6.  for (int i = 32; i < 56; i++)
  7.   if (h[i] != (byte) 'X') return false;
  8.  try {
  9.   short hour = Short.parseShort(new String(h, 0, 2));
  10.   short minute = Short.parseShort(new String(h, 2, 2));
  11.   short year = Short.parseShort(new String(h, 4, 2));
  12.   short month = Short.parseShort(new String(h, 6, 2));
  13.   short day = Short.parseShort(new String(h, 8, 2));
  14.   if ((hour < 0) || (hour > 24)) return false;
  15.   if ((minute < 0) || (minute > 60)) return false;
  16.   if ((year < 0) || (year > 100)) return false;
  17.   if ((month < 0) || (month > 12)) return false;
  18.   if ((day < 0) || (day > 31)) return false;
  19.  } catch (Exception e) {
  20.   return false;
  21.  }
  22.  return true;
  23. }

代码示例来源：origin: Unidata/thredds

  1. List<Record> readData() throws IOException {
  2.  List<Record> records = new ArrayList<>();
  3.  raf.seek(filePos + 40);
  4.  byte[] b = raf.readBytes(reportLen - 40);
  5.  if (showData) System.out.println("\n" + new String(b, CDM.utf8Charset));
  6.  if (showData) System.out.println(this);
  7.  int offset = 0;
  8.  while (true) {
  9.   Record record = new Record();
  10.   offset = record.read(b, offset);
  11.   records.add(record);
  12.   if (record.next >= reportLen / 10) break;
  13.  }
  14.  return records;
  15. }

代码示例来源：origin: Unidata/thredds

  1. public boolean isValidFile(RandomAccessFile raf) throws IOException {
  2.  raf.seek(0);
  3.  if (raf.length() < 60) return false;
  4.  byte[] h = raf.readBytes(60);
  5.  // 32 - 56 are X's
  6.  for (int i = 32; i < 56; i++)
  7.   if (h[i] != (byte) 'X') return false;
  8.  try {
  9.   short hour = Short.parseShort(new String(h, 0, 2, CDM.utf8Charset));
  10.   short minute = Short.parseShort(new String(h, 2, 2, CDM.utf8Charset));
  11.   short year = Short.parseShort(new String(h, 4, 2, CDM.utf8Charset));
  12.   short month = Short.parseShort(new String(h, 6, 2, CDM.utf8Charset));
  13.   short day = Short.parseShort(new String(h, 8, 2, CDM.utf8Charset));
  14.   if ((hour < 0) || (hour > 24)) return false;
  15.   if ((minute < 0) || (minute > 60)) return false;
  16.   if ((year < 0) || (year > 100)) return false;
  17.   if ((month < 0) || (month > 12)) return false;
  18.   if ((day < 0) || (day > 31)) return false;
  19.  } catch (Exception e) {
  20.   return false;
  21.  }
  22.  return true;
  23. }

代码示例来源：origin: edu.ucar/cdm

  1. private void readHeader(RandomAccessFile raf) throws IOException {
  2.  byte[] h = raf.readBytes(60);
  3.  // 12 00 070101
  4.  short hour = Short.parseShort( new String(h, 0, 2, CDM.utf8Charset));
  5.  short minute = Short.parseShort(new String(h, 2, 2, CDM.utf8Charset));
  6.  short year = Short.parseShort(new String(h, 4, 2, CDM.utf8Charset));
  7.  short month = Short.parseShort(new String(h, 6, 2, CDM.utf8Charset));
  8.  short day = Short.parseShort(new String(h, 8, 2, CDM.utf8Charset));
  9.  int fullyear = (year > 30) ? 1900 + year : 2000 + year;
  10.  if (cal == null) {
  11.   cal = Calendar.getInstance();
  12.   cal.setTimeZone(TimeZone.getTimeZone("UTC"));
  13.  }
  14.  cal.clear();
  15.  cal.set(fullyear, month - 1, day, hour, minute);
  16.  refDate = cal.getTime();
  17.  if (showHeader) System.out.println("\nhead=" + new String(h, CDM.utf8Charset) +
  18.      " date= " + dateFormatter.toDateTimeString(refDate));
  19.  int b, count = 0;
  20.  while ((b = raf.read()) == (int) 'X') count++;
  21.  char c = (char) b;
  22.  if (showSkip) System.out.println(" b=" + b + " c=" + c + " at " + raf.getFilePointer() + " skipped= " + count);
  23.  raf.skipBytes(-1); // go back one
  24. }

代码示例来源：origin: edu.ucar/netcdf

  1. private boolean endFile(RandomAccessFile raf) throws IOException {
  2.  if (showSkip) System.out.println(" endFile start at " + raf.getFilePointer());
  3.  String endRecord = new String(raf.readBytes(10));
  4.  while (endRecord.equals("ENDOF FILE")) {
  5.   endRecord = new String(raf.readBytes(10));
  6.  }
  7.  try {
  8.   while (raf.read() != (int) 'X') ; //find where X's start
  9.   while (raf.read() == (int) 'X') ; //skip X's till you run out
  10.   raf.skipBytes(-1); // go back one
  11.   readHeader(raf);
  12.   return true;
  13.  } catch (EOFException e) {
  14.   return false;
  15.  }
  16. }

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