Examples of java.nio.ByteBuffer.reset()

java.nio.ByteBuffer.reset()


      try {
        type = buffer.getShort();
        length  = buffer.getShort();
      } catch (BufferUnderflowException e) {
        buffer.reset();
        throw new InvalidLogBufferException();
      }
      if (buffer.position() + length > lb.bytesUsed) {
        buffer.reset();
        throw new InvalidLogBufferException();

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      } catch (BufferUnderflowException e) {
        buffer.reset();
        throw new InvalidLogBufferException();
      }
      if (buffer.position() + length > lb.bytesUsed) {
        buffer.reset();
        throw new InvalidLogBufferException();
      }
      
      if (length > data.length) {
        // reallocate buffer to accomodate record

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          tgt.mark(); // save position in target
          boolean found = true;
          int pos = src.position() - 1;
          while (tgt.hasRemaining()) {
            if (!src.hasRemaining()) { // src expired first
              tgt.reset();
              src.reset();
              found = false;
              break;
            }
            if (!(tgt.get() == src.get())) {

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              src.reset();
              found = false;
              break;
            }
            if (!(tgt.get() == src.get())) {
              tgt.reset();
              src.reset();
              found = false;
              break; // no match
            }
          }

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                message = pendingWrites.remove();
                isWriting = false;
            }
            if (logger.isLoggable(Level.FINEST)) {
    ByteBuffer resetMessage = message.duplicate();
    resetMessage.reset();
                logger.log(Level.FINEST,
         "completed write protocol:{0} message:{1}",
         SimpleSgsProtocolImpl.this,
         HexDumper.format(resetMessage, 0x50));
            }

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    // using that encoder.
    //
    try {
      return decode(b, Constants.CHARSET);
    } catch (CharacterCodingException e) {
      b.reset();
    }


    if (!cs.equals(Constants.CHARSET)) {
      // Try the suggested encoding, it might be right since it was
      // provided by the caller.

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      // provided by the caller.
      //
      try {
        return decode(b, cs);
      } catch (CharacterCodingException e) {
        b.reset();
      }
    }


    // Try the default character set. A small group of people
    // might actually use the same (or very similar) locale.

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    final Charset defcs = Charset.defaultCharset();
    if (!defcs.equals(cs) && !defcs.equals(Constants.CHARSET)) {
      try {
        return decode(b, defcs);
      } catch (CharacterCodingException e) {
        b.reset();
      }
    }


    throw new CharacterCodingException();
  }

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        assert buffer != null;
        ByteBuffer cloned = allocate(buffer.remaining());


        cloned.mark();
        cloned.put(buffer.duplicate());
        cloned.reset();
        return cloned;
    }


    public abstract ByteBuffer allocate(int size);
}

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          tgt.mark(); // save position in target
          boolean found = true;
          int pos = src.position()-1;
          while (tgt.hasRemaining()) {
            if (!src.hasRemaining()) { // src expired first
              tgt.reset();
              src.reset();
              found = false;
              break;
            }
            if (!(tgt.get() == src.get())) {

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