Metacat

	  throws NotImplemented, NotFound, NotAuthorized, ServiceFailure, InvalidRequest, InvalidToken {

		// get the subject

		Subject subject = session.getSubject();

		// get the system metadata

		String guid = pid.getValue();

		// are we allowed to do this?

		if (!hasPermission(session, pid, Permission.CHANGE_PERMISSION)) {

			throw new NotAuthorized("4881", "not allowed by " + subject.getValue() + " on " + guid);	

		}

		SystemMetadata systemMetadata = null;

		try {

			systemMetadata = IdentifierManager.getInstance().getSystemMetadata(guid);

		} catch (McdbDocNotFoundException e) {

			throw new NotFound("4884", "No record found for: " + guid);

		}

		// set the new policy

		systemMetadata.setReplicationPolicy(policy);

		// update the metadata

		try {

			IdentifierManager.getInstance().updateSystemMetadata(systemMetadata);

		} catch (McdbDocNotFoundException e) {

			throw new ServiceFailure("4882", e.getMessage());

		}

		return true;