Examples with ChecksumType org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos.ChecksumType used on opensource projects

Example 1 with ChecksumType

use of org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos.ChecksumType in project ozone by apache.

the class Checksum method verifyChecksum.

/**
 * Computes the ChecksumData for the input byteStrings and verifies that
 * the checksums match with that of the input checksumData.
 * @param byteStrings input data buffers list. Each byteString should
 *                    correspond to one checksum.
 * @param checksumData checksumData to match with
 * @param startIndex index of first checksum in checksumData to match with
 *                   data's computed checksum.
 * @param isSingleByteString if true, there is only one byteString in the
 *                           input list and it should be processes
 *                           accordingly
 * @throws OzoneChecksumException is thrown if checksums do not match
 */
public static boolean verifyChecksum(List<ByteString> byteStrings, ChecksumData checksumData, int startIndex, boolean isSingleByteString) throws OzoneChecksumException {
    ChecksumType checksumType = checksumData.getChecksumType();
    if (checksumType == ChecksumType.NONE) {
        // Checksum is set to NONE. No further verification is required.
        return true;
    }
    if (isSingleByteString) {
        // The data is a single ByteString (old format).
        return verifyChecksum(byteStrings.get(0), checksumData, startIndex);
    }
    // The data is a list of ByteStrings. Each ByteString length should be
    // the same as the number of bytes per checksum (except the last
    // ByteString which could be smaller).
    final List<ByteBuffer> buffers = BufferUtils.getReadOnlyByteBuffers(byteStrings);
    int bytesPerChecksum = checksumData.getBytesPerChecksum();
    Checksum checksum = new Checksum(checksumType, bytesPerChecksum);
    final ChecksumData computed = checksum.computeChecksum(ChunkBuffer.wrap(buffers));
    return checksumData.verifyChecksumDataMatches(computed, startIndex);
}

Example 2 with ChecksumType

use of org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos.ChecksumType in project ozone by apache.

the class Checksum method verifyChecksum.

/**
 * Computes the ChecksumData for the input data and verifies that it
 * matches with that of the input checksumData.
 * @param data input data
 * @param checksumData checksumData to match with
 * @param startIndex index of first checksum in checksumData to match with
 *                   data's computed checksum.
 * @throws OzoneChecksumException is thrown if checksums do not match
 */
private static boolean verifyChecksum(ByteBuffer data, ChecksumData checksumData, int startIndex) throws OzoneChecksumException {
    ChecksumType checksumType = checksumData.getChecksumType();
    if (checksumType == ChecksumType.NONE) {
        // Checksum is set to NONE. No further verification is required.
        return true;
    }
    int bytesPerChecksum = checksumData.getBytesPerChecksum();
    Checksum checksum = new Checksum(checksumType, bytesPerChecksum);
    final ChecksumData computed = checksum.computeChecksum(data);
    return checksumData.verifyChecksumDataMatches(computed, startIndex);
}