Metacat

	/**

	 * Update the system metadata of the specified pid.

	 */

	 if(pid == null || pid.getValue() == null) {

         throw new InvalidRequest("4863", "Please specify the id in the updateSystemMetadata request ") ;

     }

     if (session == null) {

         //TODO: many of the thrown exceptions do not use the correct error codes

         //check these against the docs and correct them

         throw new NotAuthorized("4861", "No Session - could not authorize for updating system metadata." +

                 "  If you are not logged in, please do so and retry the request.");

     } else {

         try {

             //Following session can do the change:

           //- Authoritative Member Node (we can use isNodeAdmin since we checked isAuthoritativeNode in line 2159)

             //- Owner of object (coved by the userHasPermission method)

             //- user subjects with the change permission

             //Note: Coordinating Node can not because MN is authoritative

             if(!isNodeAdmin(session) && !userHasPermission(session, pid, Permission.CHANGE_PERMISSION)) {

                 throw new NotAuthorized("4861", "The client -"+ session.getSubject().getValue()+ "is not authorized for updating the system metadata of the object "+pid.getValue());

             }

         } catch (NotFound e) {

             throw new InvalidRequest("4863", "Can't determine if the client has the permission to update the system metacat of the object with id "+pid.getValue()+" since "+e.getDescription());

         }

     }

          //TODO

	/*

     * Determine if the current node is the authoritative node for the given pid.

     */

    protected boolean isAuthoritativeNode(Identifier pid) {

        boolean isAuthoritativeNode = false;

        if(pid != null && pid.getValue() != null) {

            SystemMetadata sys = HazelcastService.getInstance().getSystemMetadataMap().get(pid);

            if(sys != null) {

                NodeReference node = sys.getAuthoritativeMemberNode();

                if(node != null) {

                    String nodeValue = node.getValue();

                    logMetacat.debug("The authoritative node for id "+pid.getValue()+" is "+nodeValue);

                    //System.out.println("The authoritative node for id "+pid.getValue()+" is "+nodeValue);

                    String currentNodeId = Settings.getConfiguration().getString("dataone.nodeId");

                    logMetacat.debug("The node id in metacat.properties is "+currentNodeId);

                    //System.out.println("The node id in metacat.properties is "+currentNodeId);

                    if(currentNodeId != null && !currentNodeId.trim().equals("") && currentNodeId.equals(nodeValue)) {

                        logMetacat.debug("They are matching");

                        //System.out.println("They are matching");

                        isAuthoritativeNode = true;

                    }

                }

            }

        }

        return isAuthoritativeNode;

    }