Metacat

import org.dataone.service.types.v1.Person;

          logMetacat.debug("D1NodeService.expandRightHolder - at the start of method: after getting the cn node and cn node is "+cn.getNodeBaseServiceUrl());

          int count= 200;

          while(subjects != null) {

              is = isInGroups(userSession, rightHolder, groups);

              if(is) {

                  //since we find it, return it.

                  return is;

              } else {

                  //decide if we need to try the page query for another trying.

                  int sizeOfGroups = 0;

                  if(groups != null) {

                     sizeOfGroups  = groups.size();

                  List<Person> persons = subjects.getPersonList();

                  int sizeOfPersons = 0;

                  if(persons != null) {

                      sizeOfPersons = persons.size();

                  }

                  int totalSize = sizeOfGroups+sizeOfPersons;

                  //logMetacat.debug("D1NodeService.expandRightHolder - search the subject "+query+" in the cn and the size of return result is "+totalSize);

                 //we can't find the target on the first query, maybe query again.

                  if(totalSize == count) {

                      start = start+count;

                      logMetacat.debug("D1NodeService.expandRightHolder - search the subject "+query+" in the cn and the size of return result equals the count "+totalSize+" .And we didn't find the target in the this query. So we have to use the page query with the start number "+start);

                      subjects = cn.listSubjects(session, query, status, start, count);

                  } else if (totalSize < count){

                      logMetacat.debug("D1NodeService.expandRightHolder - we are already at the end of the returned restult since the size of returned results "+totalSize+

                          " is less than the count "+count+". So we have to break the loop and finish the try.");

                      break;

                  } else if (totalSize >count) {

                      logMetacat.warn("D1NodeService.expandRightHolder - Something is wrong on the implementation of the method listSubject since the size of returned results "+totalSize+

                              " is greater than the count "+count+". So we have to break the loop and finish the try.");

                      break;

                  }

          } 

          //logMetacat.debug("D1NodeService.expandRightHolder - search the subject "+query+" in the cn and the returned result is null");

   * If the given useSession is a member of a group which is in the given list of groups and has the name of righHolder.

   */

  private static boolean isInGroups(Subject userSession, Subject rightHolder, List<Group> groups) {

      boolean is = false;

      if(groups != null) {

          logMetacat.debug("D1NodeService.isInGroups -  the given groups' (the returned result including groups) size is "+groups.size());

          for(Group group : groups) {

              //logMetacat.debug("D1NodeService.expandRightHolder - group has the subject "+group.getSubject().getValue());

              if(group != null && group.getSubject() != null && group.getSubject().equals(rightHolder)) {

                  logMetacat.debug("D1NodeService.isInGroups - there is a group in the list having the subjecct "+group.getSubject().getValue()+" which matches the right holder's subject "+rightHolder.getValue());

                  List<Subject> members = group.getHasMemberList();

                  if(members != null ){

                      logMetacat.debug("D1NodeService.isInGroups - the group "+group.getSubject().getValue()+" in the cn has members");

                      for(Subject member : members) {

                          logMetacat.debug("D1NodeService.isInGroups - compare the member "+member.getValue()+" with the user "+userSession.getValue());

                          if(member.getValue() != null && !member.getValue().trim().equals("") && userSession.getValue() != null && member.getValue().equals(userSession.getValue())) {

                              logMetacat.debug("D1NodeService.isInGroups - Find it! The member "+member.getValue()+" in the group "+group.getSubject().getValue()+" matches the user "+userSession.getValue());

                              is = true;

                              return is;

                          }

                      }

                  }

                  break;//we found the group but can't find the member matches the user. so break it.

              }

          }

      } else {

          logMetacat.debug("D1NodeService.isInGroups -  the given group is null (the returned result does NOT have a group");

      }

      return is;

  }

  /*