@Override
  public List<Group> getAuthorizedGroups(Context c, DSpaceObject o, int actionID)
      throws java.sql.SQLException {
    List<ResourcePolicy> policies = getPoliciesActionFilter(c, o, actionID);

    List<Group> groups = new ArrayList<Group>();
    for (ResourcePolicy resourcePolicy : policies) {
      if (resourcePolicy.getGroup() != null) {
        groups.add(resourcePolicy.getGroup());
      }
    }
    return groups;
  }
  @Override
  public void addPolicies(Context c, List<ResourcePolicy> policies, DSpaceObject dest)
      throws SQLException, AuthorizeException {
    // now add them to the destination object
    List<ResourcePolicy> newPolicies = new LinkedList<>();

    for (ResourcePolicy srp : policies) {
      ResourcePolicy rp = resourcePolicyService.create(c);

      // copy over values
      rp.setdSpaceObject(dest);
      rp.setAction(srp.getAction());
      rp.setEPerson(srp.getEPerson());
      rp.setGroup(srp.getGroup());
      rp.setStartDate(srp.getStartDate());
      rp.setEndDate(srp.getEndDate());
      rp.setRpName(srp.getRpName());
      rp.setRpDescription(srp.getRpDescription());
      rp.setRpType(srp.getRpType());

      // and add policy to list of new policies
      newPolicies.add(rp);
    }

    resourcePolicyService.update(c, newPolicies);
  }
  @Override
  public boolean isAdmin(Context c, DSpaceObject o) throws SQLException {

    // return true if user is an Administrator
    if (isAdmin(c)) {
      return true;
    }

    if (o == null) {
      return false;
    }

    //
    // First, check all Resource Policies directly on this object
    //
    List<ResourcePolicy> policies = getPoliciesActionFilter(c, o, Constants.ADMIN);

    for (ResourcePolicy rp : policies) {
      // check policies for date validity
      if (resourcePolicyService.isDateValid(rp)) {
        if (rp.getEPerson() != null && rp.getEPerson().equals(c.getCurrentUser())) {
          return true; // match
        }

        if ((rp.getGroup() != null) && (groupService.isMember(c, rp.getGroup()))) {
          // group was set, and eperson is a member
          // of that group
          return true;
        }
      }
    }

    // If user doesn't have specific Admin permissions on this object,
    // check the *parent* objects of this object.  This allows Admin
    // permissions to be inherited automatically (e.g. Admin on Community
    // is also an Admin of all Collections/Items in that Community)
    DSpaceObject parent = serviceFactory.getDSpaceObjectService(o).getParentObject(c, o);
    if (parent != null) {
      return isAdmin(c, parent);
    }

    return false;
  }
 @Override
 public boolean isAnIdenticalPolicyAlreadyInPlace(Context c, DSpaceObject o, ResourcePolicy rp)
     throws SQLException {
   return isAnIdenticalPolicyAlreadyInPlace(c, o, rp.getGroup(), rp.getAction(), rp.getID());
 }
  /**
   * Check to see if the given user can perform the given action on the given object. Always returns
   * true if the ignore authorization flat is set in the current context.
   *
   * @param c current context. User is irrelevant; "ignore authorization" flag is relevant
   * @param o object action is being attempted on
   * @param action ID of action being attempted, from <code>org.dspace.core.Constants</code>
   * @param e user attempting action
   * @param useInheritance flag to say if ADMIN action on the current object or parent object can be
   *     used
   * @return <code>true</code> if user is authorized to perform the given action, <code>false</code>
   *     otherwise
   * @throws SQLException if database error
   */
  protected boolean authorize(
      Context c, DSpaceObject o, int action, EPerson e, boolean useInheritance)
      throws SQLException {
    // return FALSE if there is no DSpaceObject
    if (o == null) {
      return false;
    }

    // is authorization disabled for this context?
    if (c.ignoreAuthorization()) {
      return true;
    }

    // is eperson set? if not, userToCheck = null (anonymous)
    EPerson userToCheck = null;
    if (e != null) {
      userToCheck = e;

      // perform isAdmin check to see
      // if user is an Admin on this object
      DSpaceObject adminObject =
          useInheritance
              ? serviceFactory.getDSpaceObjectService(o).getAdminObject(c, o, action)
              : null;

      if (isAdmin(c, adminObject)) {
        return true;
      }
    }

    // In case the dso is an bundle or bitstream we must ignore custom
    // policies if it does not belong to at least one installed item (see
    // DS-2614).
    // In case the dso is an item and a corresponding workspace or workflow
    // item exist, we have to ignore custom policies (see DS-2614).
    boolean ignoreCustomPolicies = false;
    if (o instanceof Bitstream) {
      Bitstream b = (Bitstream) o;

      // Ensure that this is not a collection or community logo
      DSpaceObject parent = bitstreamService.getParentObject(c, b);
      if (!(parent instanceof Collection) && !(parent instanceof Community)) {
        ignoreCustomPolicies = !isAnyItemInstalled(c, b.getBundles());
      }
    }
    if (o instanceof Bundle) {
      ignoreCustomPolicies = !isAnyItemInstalled(c, Arrays.asList(((Bundle) o)));
    }
    if (o instanceof Item) {
      if (workspaceItemService.findByItem(c, (Item) o) != null
          || workflowItemService.findByItem(c, (Item) o) != null) {
        ignoreCustomPolicies = true;
      }
    }

    for (ResourcePolicy rp : getPoliciesActionFilter(c, o, action)) {

      if (ignoreCustomPolicies && ResourcePolicy.TYPE_CUSTOM.equals(rp.getRpType())) {
        continue;
      }

      // check policies for date validity
      if (resourcePolicyService.isDateValid(rp)) {
        if (rp.getEPerson() != null && rp.getEPerson().equals(userToCheck)) {
          return true; // match
        }

        if ((rp.getGroup() != null) && (groupService.isMember(c, rp.getGroup()))) {
          // group was set, and eperson is a member
          // of that group
          return true;
        }
      }
    }

    // default authorization is denial
    return false;
  }