3 Replies Latest reply on Oct 24, 2008 9:53 AM by Marco Röösli

    Problem with EntityIdentifierStrategy and PermissionManager

    Marco Röösli Newbie

      Problem with EntityIdentifierStrategy and PermissionManager


      I try to grant a permission to an entity. my permission store works properly for non entity objects with my own IdentifierStrategy implementation but not for entitys using the EntityIdentifierStrategy.


      this is my entity class:


      @Entity
      @Table(name = "DUMMY_USER")
      @Identifier(value = EntityIdentifierStrategy.class)
      @Name("dummyUser")
      public class DummyUser  implements Serializable{
      
           private static final long serialVersionUID = -3134097431661355175L;
           @Id
           @Column(name = "ID")
           @GeneratedValue(generator = "pomopSequenceGenerator")
           @GenericGenerator(name = "pomopSequenceGenerator", strategy = "org.hibernate.id.enhanced.SequenceStyleGenerator", parameters = {
                     @Parameter(name = "sequence_name", value = "POMOP_SEQUENCE"),
                     @Parameter(name = "initial_value", value = "1000"),
                     @Parameter(name = "increment_size", value = "1") })
      
           public Long id; 
           
           @Column(name = "FIRSTNAME", length = 63, nullable = false)
           private String firstname;
      
           /**
            * 
            */
      
           @Length(max=20)
           @Column(name = "LASTNAME", length = 63, nullable = false)
           private String lastname;
      
           @Column(name = "EMAIL", length = 255, nullable = true)
           private String email;
           
      
           @OneToMany(cascade = CascadeType.ALL)
           private List<DummySettings> settings;
           
           @OneToOne(cascade = CascadeType.ALL)
           private DummySettings setting=new DummySettings("test");
           
      
      
           public List<DummySettings> getSettings() {
                return settings;
           }
      
           public void setSettings(List<DummySettings> settings) {
                this.settings = settings;
           }
      
           public DummyUser() {
           }
      
           public DummyUser(String firstname, String lastname, String email) {
                this.firstname = firstname;
                this.lastname = lastname;
                this.email = email;
           }
           
           
      
           public String getFirstname() {
           
                return firstname;
           }
      
           public void setFirstname(String firstname) {
                this.firstname = firstname;
           }
           
           public String getFullname() {
                return getFirstname() + " " + getLastname();
           }
      
      
           public void postLoad()
           {
                System.out.println("*************************");
           }
       
           
           public String getLastname() {
                
                return lastname;
           }
           
           public void setLastname(String lastname) {
                this.lastname = lastname;
           }
           
           public String getEmail() {
                return email;
           }
      
           /**
            * fgdfgfdgfdgfdg. {@link AbstractOwnedEntity}
            * 
            * @param email
            */
           public void setEmail(String email) {
                this.email = email;
           }
      
           public String toString() {
                return getFirstname() + " " + getLastname();
           }
           
           public Long getId() {
                return id;
           }
      
           public void setId(Long id) {
                this.id = id;
           }
      
           public DummySettings getSetting() {
                return setting;
           }
      
           public void setSetting(DummySettings setting) {
                this.setting = setting;
           }
      
      }
      


      I made a rule to grant permissions for this class in my security.drl file


      rule ManageDummyUserGrantPermissions
       no-loop
       activation-group "permissions"
      when
        du: DummyUser()
        check: PermissionCheck(target == du, action == "seam.grant-permission", granted == false)
        Role(name == "root")
      then
        check.grant();
      end
      


      I call the method grantUpdateForRoleRoot() from a jsf button. The user who click on this button is authed successfuly by the identityManager and has the role root


      I want to give the update action to this target for the role root
      Here is the method what will be called:


      public void grantUpdateForRoleRoot()
         {
           DummyUser du = (DummyUser) getDataTable().getRowData();
           Role r = new Role("root");
           Permission p= new Permission(du,"update",r);
           this.permissionManager.grantPermission(p);
         }
      



      I call the method grantUpdateForRoleRoot() from a jsf button. The user who click on this button is authed successfuly by the identityManager and has the role root


      I want to give the update action to this target for the role root
      Here is the method what will be called:


      public void grantUpdateForRoleRoot()
         {
           DummyUser du = (DummyUser) getDataTable().getRowData();
           Role r = new Role("root");
           Permission p= new Permission(du,"update",r);
           this.permissionManager.grantPermission(p);
         }
      



      while debuging everything is ok until it comes here


      EntityIdentifierStrategy Line 59 in private String getIdentifierName(Class cls)


      Identifier identifier = (Identifier) cls.getAnnotation(Identifier.class);



      this line throws an NullPointer exception




      this will be called from IdentityPolicy (line 85) from method getIdentifier(Object target))


      return strategy != null ? strategy.getIdentifier(target) : null;
      



      and this will be called from JpaPermissionStore (Line 224 in method createPermissionQuery(..)


      
      if (target != null) query.setParameter("target", identifierPolicy.getIdentifier(target));
      
      


      finally the exception from above will be catched in JpaPermissionStore (Line 428) in method updatePermissionActions(..)


      ...
      catch (Exception ex)
      {
          throw new RuntimeException("Could not grant permission", ex);
      } 
      


      what can be the problem? my bee its not able to find the @Id annotation
      thx for your help


      greetz Marco