Metacat

        // verify checksum on the object, if supported

        if (object.markSupported()) {

        	Checksum givenChecksum = sysmeta.getChecksum();

        	Checksum computedChecksum = null;

        	try {

				computedChecksum = ChecksumUtil.checksum(object, givenChecksum.getAlgorithm());

				object.reset();

			} catch (Exception e) {

				String msg = "Error computing checksum on replica: " + e.getMessage();

				ServiceFailure sf = new ServiceFailure("2151", msg);

				sf.initCause(e);

				throw sf;

			} 

			if (!givenChecksum.getValue().equals(computedChecksum)) {

				throw new ServiceFailure("2151", "Computed checksum does not match declared checksum");

			}

        }