How to use

readEntry

method

in

org.apache.hadoop.hbase.procedure2.store.wal.ProcedureWALFormat

public void processProcedureWALFile(ProcedureWALFile log) throws IOException {
 log.open();
 ProcedureWALHeader header = log.getHeader();
 printHeader(header);
 FSDataInputStream stream = log.getStream();
 try {
  boolean hasMore = true;
  while (hasMore) {
   ProcedureWALEntry entry = ProcedureWALFormat.readEntry(stream);
   if (entry == null) {
    out.println("No more entry, exiting with missing EOF");
    hasMore = false;
    break;
   }
   switch (entry.getType()) {
    case PROCEDURE_WAL_EOF:
     hasMore = false;
     break;
    default:
     printEntry(entry);
   }
  }
 } catch (IOException e) {
  out.println("got an exception while reading the procedure WAL " + e.getMessage());
 }
 finally {
  log.close();
 }
}

public static ProcedureWALTrailer readTrailer(FSDataInputStream stream, long startPos, long size)
  throws IOException {
 // Beginning of the Trailer Jump. 17 = 1 byte version + 8 byte magic + 8 byte offset
 long trailerPos = size - 17;
 if (trailerPos < startPos) {
  throw new InvalidWALDataException("Missing trailer: size=" + size + " startPos=" + startPos);
 }
 stream.seek(trailerPos);
 int version = stream.read();
 if (version != TRAILER_VERSION) {
  throw new InvalidWALDataException("Invalid Trailer version. got " + version +
    " expected " + TRAILER_VERSION);
 }
 long magic = StreamUtils.readLong(stream);
 if (magic != TRAILER_MAGIC) {
  throw new InvalidWALDataException("Invalid Trailer magic. got " + magic +
    " expected " + TRAILER_MAGIC);
 }
 long trailerOffset = StreamUtils.readLong(stream);
 stream.seek(trailerOffset);
 ProcedureWALEntry entry = readEntry(stream);
 if (entry.getType() != ProcedureWALEntry.Type.PROCEDURE_WAL_EOF) {
  throw new InvalidWALDataException("Invalid Trailer begin");
 }
 ProcedureWALTrailer trailer = ProcedureWALTrailer.newBuilder()
  .setVersion(version)
  .setTrackerPos(stream.getPos())
  .build();
 return trailer;
}

boolean hasMore = true;
while (hasMore) {
 ProcedureWALEntry entry = ProcedureWALFormat.readEntry(stream);
 if (entry == null) {
  LOG.warn("Nothing left to decode. Exiting with missing EOF, log={}", log);

public void processProcedureWALFile(ProcedureWALFile log) throws IOException {
 log.open();
 ProcedureWALHeader header = log.getHeader();
 printHeader(header);
 FSDataInputStream stream = log.getStream();
 try {
  boolean hasMore = true;
  while (hasMore) {
   ProcedureWALEntry entry = ProcedureWALFormat.readEntry(stream);
   if (entry == null) {
    out.println("No more entry, exiting with missing EOF");
    hasMore = false;
    break;
   }
   switch (entry.getType()) {
    case PROCEDURE_WAL_EOF:
     hasMore = false;
     break;
    default:
     printEntry(entry);
   }
  }
 } catch (IOException e) {
  out.println("got an exception while reading the procedure WAL " + e.getMessage());
 }
 finally {
  log.close();
 }
}

public void processProcedureWALFile(ProcedureWALFile log) throws IOException {
 log.open();
 ProcedureWALHeader header = log.getHeader();
 printHeader(header);
 FSDataInputStream stream = log.getStream();
 try {
  boolean hasMore = true;
  while (hasMore) {
   ProcedureWALEntry entry = ProcedureWALFormat.readEntry(stream);
   if (entry == null) {
    out.println("No more entry, exiting with missing EOF");
    hasMore = false;
    break;
   }
   switch (entry.getType()) {
    case PROCEDURE_WAL_EOF:
     hasMore = false;
     break;
    default:
     printEntry(entry);
   }
  }
 } catch (IOException e) {
  out.println("got an exception while reading the procedure WAL " + e.getMessage());
 }
 finally {
  log.close();
 }
}

public static ProcedureWALTrailer readTrailer(FSDataInputStream stream, long startPos, long size)
  throws IOException {
 // Beginning of the Trailer Jump. 17 = 1 byte version + 8 byte magic + 8 byte offset
 long trailerPos = size - 17;
 if (trailerPos < startPos) {
  throw new InvalidWALDataException("Missing trailer: size=" + size + " startPos=" + startPos);
 }
 stream.seek(trailerPos);
 int version = stream.read();
 if (version != TRAILER_VERSION) {
  throw new InvalidWALDataException("Invalid Trailer version. got " + version +
    " expected " + TRAILER_VERSION);
 }
 long magic = StreamUtils.readLong(stream);
 if (magic != TRAILER_MAGIC) {
  throw new InvalidWALDataException("Invalid Trailer magic. got " + magic +
    " expected " + TRAILER_MAGIC);
 }
 long trailerOffset = StreamUtils.readLong(stream);
 stream.seek(trailerOffset);
 ProcedureWALEntry entry = readEntry(stream);
 if (entry.getType() != ProcedureWALEntry.Type.PROCEDURE_WAL_EOF) {
  throw new InvalidWALDataException("Invalid Trailer begin");
 }
 ProcedureWALTrailer trailer = ProcedureWALTrailer.newBuilder()
  .setVersion(version)
  .setTrackerPos(stream.getPos())
  .build();
 return trailer;
}

public static ProcedureWALTrailer readTrailer(FSDataInputStream stream, long startPos, long size)
  throws IOException {
 // Beginning of the Trailer Jump. 17 = 1 byte version + 8 byte magic + 8 byte offset
 long trailerPos = size - 17;
 if (trailerPos < startPos) {
  throw new InvalidWALDataException("Missing trailer: size=" + size + " startPos=" + startPos);
 }
 stream.seek(trailerPos);
 int version = stream.read();
 if (version != TRAILER_VERSION) {
  throw new InvalidWALDataException("Invalid Trailer version. got " + version +
    " expected " + TRAILER_VERSION);
 }
 long magic = StreamUtils.readLong(stream);
 if (magic != TRAILER_MAGIC) {
  throw new InvalidWALDataException("Invalid Trailer magic. got " + magic +
    " expected " + TRAILER_MAGIC);
 }
 long trailerOffset = StreamUtils.readLong(stream);
 stream.seek(trailerOffset);
 ProcedureWALEntry entry = readEntry(stream);
 if (entry.getType() != ProcedureWALEntry.Type.PROCEDURE_WAL_EOF) {
  throw new InvalidWALDataException("Invalid Trailer begin");
 }
 ProcedureWALTrailer trailer = ProcedureWALTrailer.newBuilder()
  .setVersion(version)
  .setTrackerPos(stream.getPos())
  .build();
 return trailer;
}

public static ProcedureWALTrailer readTrailer(FSDataInputStream stream, long startPos, long size)
  throws IOException {
 long trailerPos = size - 17; // Beginning of the Trailer Jump
 if (trailerPos < startPos) {
  throw new InvalidWALDataException("Missing trailer: size=" + size + " startPos=" + startPos);
 }
 stream.seek(trailerPos);
 int version = stream.read();
 if (version != TRAILER_VERSION) {
  throw new InvalidWALDataException("Invalid Trailer version. got " + version +
    " expected " + TRAILER_VERSION);
 }
 long magic = StreamUtils.readLong(stream);
 if (magic != TRAILER_MAGIC) {
  throw new InvalidWALDataException("Invalid Trailer magic. got " + magic +
    " expected " + TRAILER_MAGIC);
 }
 long trailerOffset = StreamUtils.readLong(stream);
 stream.seek(trailerOffset);
 ProcedureWALEntry entry = readEntry(stream);
 if (entry.getType() != ProcedureWALEntry.Type.EOF) {
  throw new InvalidWALDataException("Invalid Trailer begin");
 }
 ProcedureWALTrailer trailer = ProcedureWALTrailer.newBuilder()
  .setVersion(version)
  .setTrackerPos(stream.getPos())
  .build();
 return trailer;
}

boolean hasMore = true;
while (hasMore) {
 ProcedureWALEntry entry = ProcedureWALFormat.readEntry(stream);
 if (entry == null) {
  LOG.warn("Nothing left to decode. Exiting with missing EOF, log={}", log);

boolean hasMore = true;
while (hasMore) {
 ProcedureWALEntry entry = ProcedureWALFormat.readEntry(stream);
 if (entry == null) {
  LOG.warn("Nothing left to decode. Exiting with missing EOF, log=" + log);

boolean hasMore = true;
while (hasMore) {
 ProcedureWALEntry entry = ProcedureWALFormat.readEntry(stream);
 if (entry == null) {
  LOG.warn("nothing left to decode. exiting with missing EOF");