Method commonHeader

src/RegionClient.java:2101–2110

Common part of the hello header: magic + version.

(final byte[] buf, final byte[] hrpc)

  /** Common part of the hello header: magic + version.  */
  private ChannelBuffer commonHeader(final byte[] buf, final byte[] hrpc) {
    final ChannelBuffer header = ChannelBuffers.wrappedBuffer(buf);
    header.clear();  // Set the writerIndex to 0.

    // Magic header.  See HBaseClient#writeHeader
    // "hrpc" followed by the version.
    // See HBaseServer#HEADER and HBaseServer#CURRENT_VERSION.
    header.writeBytes(hrpc);  // for 0.94 and earlier: 4 + 1. For 0.95+: 4 + 2
    return header;
  }

  /** Hello header for HBase 0.95 and later.  */
  private ChannelBuffer header095() {