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

RandomAccessFile.readString介绍

[英]Read a String of known length.
[中]读一个已知长度的字符串。

代码示例

代码示例来源：origin: edu.ucar/cdm

  1. /**
  2.  * Read a String of known length.
  3.  *
  4.  * @param size number of bytes
  5.  * @return String result
  6.  * @throws java.io.IOException on io error
  7.  */
  8. private String readStringFixedLength(int size) throws IOException {
  9.  return raf.readString(size);
  10. }

代码示例来源：origin: Unidata/thredds

  1. /**
  2.  * Read a String of known length.
  3.  *
  4.  * @param size number of bytes
  5.  * @return String result
  6.  * @throws java.io.IOException on io error
  7.  */
  8. private String readStringFixedLength(int size) throws IOException {
  9.  return raf.readString(size);
  10. }

代码示例来源：origin: Unidata/thredds

  1. void read() throws IOException {
  2.  datemod = raf.readString(14);
  3.  if (debug1) {
  4.   log.debug("   MessageLastModifiedOld={}", datemod);
  5.  }
  6. }

代码示例来源：origin: edu.ucar/cdm

  1. void read() throws IOException {
  2.  datemod = raf.readString(14);
  3.  if (debug1) debugOut.println("   MessageLastModifiedOld=" + datemod);
  4. }

代码示例来源：origin: edu.ucar/cdm

  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 = raf.readString(10); // new String(raf.readBytes(10), CDM.utf8Charset);
  5.  while (endRecord.equals("END RECORD")) {
  6.   endRecord = raf.readString(10); // 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: Unidata/thredds

  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 = raf.readString(10); // new String(raf.readBytes(10), CDM.utf8Charset);
  5.  while (endRecord.equals("END RECORD")) {
  6.   endRecord = raf.readString(10); // 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. public boolean isValidFile( RandomAccessFile raf) throws IOException {
  2.  try {
  3.   raf.seek(0);
  4.   String test = raf.readString(8);
  5.   return test.equals( Level2VolumeScan.ARCHIVE2) || test.equals( Level2VolumeScan.AR2V0001) ||
  6.       test.equals( Level2VolumeScan.AR2V0003)|| test.equals( Level2VolumeScan.AR2V0004) ||
  7.       test.equals( Level2VolumeScan.AR2V0002) || test.equals( Level2VolumeScan.AR2V0006) ||
  8.       test.equals( Level2VolumeScan.AR2V0007);
  9.  } catch (IOException ioe) {
  10.   return false;
  11.  }
  12. }

代码示例来源：origin: Unidata/thredds

  1. public boolean isValidFile( RandomAccessFile raf) throws IOException {
  2.  try {
  3.   raf.seek(0);
  4.   String test = raf.readString(8);
  5.   return test.equals( Level2VolumeScan.ARCHIVE2) || test.equals( Level2VolumeScan.AR2V0001) ||
  6.       test.equals( Level2VolumeScan.AR2V0003)|| test.equals( Level2VolumeScan.AR2V0004) ||
  7.       test.equals( Level2VolumeScan.AR2V0002) || test.equals( Level2VolumeScan.AR2V0006) ||
  8.       test.equals( Level2VolumeScan.AR2V0007);
  9.  } catch (IOException ioe) {
  10.   return false;
  11.  }
  12. }

代码示例来源：origin: Unidata/thredds

  1. /**
  2.  * Check if this is a valid file for this IOServiceProvider.
  3.  * You must make this method thread safe, ie dont keep any state.
  4.  *
  5.  * @param raf RandomAccessFile
  6.  * @return true if valid.
  7.  * @throws IOException if read error
  8.  */
  9. public boolean isValidFile(RandomAccessFile raf) throws IOException {
  10.  raf.seek(0);
  11.  String test = raf.readString(MAGIC.length());
  12.  return test.equals(MAGIC);
  13. }

代码示例来源：origin: edu.ucar/cdm

  1. /**
  2.  * Check if this is a valid file for this IOServiceProvider.
  3.  * You must make this method thread safe, ie dont keep any state.
  4.  *
  5.  * @param raf RandomAccessFile
  6.  * @return true if valid.
  7.  * @throws IOException if read error
  8.  */
  9. public boolean isValidFile(RandomAccessFile raf) throws IOException {
  10.  raf.seek(0);
  11.  String test = raf.readString(MAGIC.length());
  12.  return test.equals(MAGIC);
  13. }

代码示例来源：origin: edu.ucar/cdm

  1. /**
  2.  * Check if this is a valid file for this IOServiceProvider.
  3.  *
  4.  * @param raf RandomAccessFile
  5.  * @return true if valid.
  6.  * @throws IOException if read error
  7.  */
  8. public boolean isValidFile(RandomAccessFile raf) throws IOException {
  9.  raf.seek(0);
  10.  int n = MAGIC.length();
  11.  if (raf.length() < n) {
  12.   return false;
  13.  }
  14.  String got = raf.readString(n);
  15.  return (pMAGIC.matcher(got).find() || pMAGIC_OLD.matcher(got).find());
  16. }

代码示例来源：origin: edu.ucar/cdm

  1. static public boolean isValidFile(ucar.unidata.io.RandomAccessFile raf) throws IOException {
  2.  long filePos = 0;
  3.  long size = raf.length();
  4.  // search forward for the header
  5.  while ((filePos < size) && (filePos < maxHeaderPos)) {
  6.   raf.seek(filePos);
  7.   String magic = raf.readString(8);
  8.   if (magic.equals(hdf5magic))
  9.    return true;
  10.   filePos = (filePos == 0) ? 512 : 2 * filePos;
  11.  }
  12.  return false;
  13. }

代码示例来源：origin: edu.ucar/cdm

  1. static boolean isValidFile(ucar.unidata.io.RandomAccessFile raf) throws IOException {
  2.  long pos = 0;
  3.  long size = raf.length();
  4.  // search forward for the header
  5.  while ((pos < size) && (pos < maxHeaderPos)) {
  6.   raf.seek(pos);
  7.   String magic = raf.readString(4);
  8.   if (magic.equals(shead))
  9.    return true;
  10.   pos = (pos == 0) ? 512 : 2 * pos;
  11.  }
  12.  return false;
  13. }

代码示例来源：origin: Unidata/thredds

  1. static boolean validatePIB(ucar.unidata.io.RandomAccessFile raf) throws IOException {
  2.  int pos = 0;
  3.  raf.seek(pos);
  4.  // gini header process
  5.  String pib = raf.readString(GINI_PIB_LEN + GINI_HED_LEN);
  6.  return findWMOHeader(pib) != 0;
  7. }

代码示例来源：origin: edu.ucar/netcdf

  1. private String getDataBlockStringValue(RandomAccessFile raf, short offset, int skip, int size) throws IOException {
  2.  long off = offset + message_offset + MESSAGE_HEADER_SIZE;
  3.  raf.seek(off);
  4.  raf.skipBytes(skip);
  5.  return raf.readString(size);
  6. }

代码示例来源：origin: edu.ucar/cdm

  1. private String getDataBlockStringValue(RandomAccessFile raf, short offset, int skip, int size) throws IOException {
  2.  long off = offset + message_offset + MESSAGE_HEADER_SIZE;
  3.  raf.seek(off);
  4.  raf.skipBytes(skip);
  5.  return raf.readString(size);
  6. }

代码示例来源：origin: Unidata/thredds

  1. private String getDataBlockStringValue(RandomAccessFile raf, short offset, int skip, int size) throws IOException {
  2.  long off = offset + message_offset + MESSAGE_HEADER_SIZE;
  3.  raf.seek(off);
  4.  raf.skipBytes(skip);
  5.  return raf.readString(size);
  6. }

代码示例来源：origin: edu.ucar/cdm

  1. /**
  2.  * Check if this is a valid file for this IOServiceProvider.
  3.  *
  4.  * @param raf RandomAccessFile
  5.  * @return true if valid.
  6.  */
  7. public boolean isValidFile(RandomAccessFile raf) throws IOException {
  8.  try {
  9.   raf.order(RandomAccessFile.BIG_ENDIAN);
  10.   raf.seek(0);
  11.   raf.skipBytes(4);
  12.   String test = raf.readString(40);
  13.   return test.equals(EMISSIONS) || test.equals(AVERAGE) || test.equals(AIRQUALITY) || test.equals(INSTANT);
  14.  } catch (IOException ioe) {
  15.   return false;
  16.  }
  17. }

代码示例来源：origin: edu.ucar/cdm

  1. private boolean endFile(RandomAccessFile raf) throws IOException {
  2.  if (showSkip) System.out.println(" endFile start at " + raf.getFilePointer());
  3.  String endRecord = raf.readString(10); // new String(raf.readBytes(10));
  4.  while (endRecord.equals("ENDOF FILE")) {
  5.   endRecord = raf.readString(10); // 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. }

代码示例来源：origin: Unidata/thredds

  1. /**
  2.  * Read a zero terminated String. Leave file positioned after zero terminator byte.
  3.  *
  4.  * @param raf from this file
  5.  * @return String (dont include zero terminator)
  6.  * @throws java.io.IOException on io error
  7.  */
  8. private String readString(RandomAccessFile raf) throws IOException {
  9.  long filePos = raf.getFilePointer();
  10.  int count = 0;
  11.  while (raf.readByte() != 0) count++;
  12.  raf.seek(filePos);
  13.  String result = raf.readString(count);
  14.  raf.readByte(); // skip the zero byte! nn
  15.  return result;
  16. }

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