Examples of org.apache.hadoop.fs.MD5MD5CRC32CastagnoliFileChecksum

org.apache.hadoop.fs.MD5MD5CRC32CastagnoliFileChecksum
For CRC32 with the Castagnoli polynomial

    switch(crcType) {
      case DataChecksum.CHECKSUM_CRC32:
        checksum = new MD5MD5CRC32GzipFileChecksum();
        break;
      case DataChecksum.CHECKSUM_CRC32C:
        checksum = new MD5MD5CRC32CastagnoliFileChecksum();
        break;
      default:
        throw new IOException("Unknown algorithm: " + algorithm);
    }
    checksum.readFields(in);

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    switch (crcType) {
      case DataChecksum.CHECKSUM_CRC32:
        return new MD5MD5CRC32GzipFileChecksum(bytesPerCRC,
            crcPerBlock, fileMD5);
      case DataChecksum.CHECKSUM_CRC32C:
        return new MD5MD5CRC32CastagnoliFileChecksum(bytesPerCRC,
            crcPerBlock, fileMD5);
      default:
        // If there is no block allocated for the file,
        // return one with the magic entry that matches what previous
        // hdfs versions return.

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    switch (crcType) {
      case CRC32:
        return new MD5MD5CRC32GzipFileChecksum(bytesPerCRC,
            crcPerBlock, fileMD5);
      case CRC32C:
        return new MD5MD5CRC32CastagnoliFileChecksum(bytesPerCRC,
            crcPerBlock, fileMD5);
      default:
        // we should never get here since the validity was checked
        // when getCrcType() was called above.
        return null;

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    switch (crcType) {
      case CRC32:
        return new MD5MD5CRC32GzipFileChecksum(bytesPerCRC,
            crcPerBlock, fileMD5);
      case CRC32C:
        return new MD5MD5CRC32CastagnoliFileChecksum(bytesPerCRC,
            crcPerBlock, fileMD5);
      default:
        // If there is no block allocated for the file,
        // return one with the magic entry that matches what previous
        // hdfs versions return.

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