bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/SetActiveSessionRole.java

   1 package org.simantics.db.layer0.request;
   2
   3 import org.simantics.db.RequestProcessor;
   4 import org.simantics.db.Resource;
   5 import org.simantics.db.SessionModel;
   6 import org.simantics.db.WriteGraph;
   7 import org.simantics.db.common.request.WriteRequest;
   8 import org.simantics.db.exception.DatabaseException;
   9 import org.simantics.db.service.VirtualGraphSupport;
  10 import org.simantics.layer0.Layer0;
  11 import org.simantics.operation.Layer0X;
  12 import org.simantics.user.UserResource;
  13
  14 public class SetActiveSessionRole extends WriteRequest {
  15
  16     final private Resource model;
  17     final private Resource role;
  18
  19     public SetActiveSessionRole(RequestProcessor processor, Resource model, Resource role) {
  20         super(processor.getService(VirtualGraphSupport.class).getWorkspacePersistent("activations"));
  21         this.model = model;
  22         this.role = role;
  23     }
  24
  25     @Override
  26     public void perform(WriteGraph graph) throws DatabaseException {
  27
  28         Layer0 L0 = Layer0.getInstance(graph);
  29         Layer0X L0X = Layer0X.getInstance(graph);
  30         UserResource USER = UserResource.getInstance(graph);
  31         Resource session = graph.getService(SessionModel.class).getResource();
  32
  33         if(session != null) {
  34             for(Resource selection : graph.getObjects(session, L0X.Session_HasRoleSelection)) {
  35                 Resource selectionModel = graph.getPossibleObject(selection, USER.RoleSelection_HasModel);
  36                 if(selectionModel.equals(model)) {
  37                     graph.deny(selection, USER.RoleSelection_HasRole);
  38                     graph.claim(selection, USER.RoleSelection_HasRole, role);
  39                     return;
  40                 }
  41             }
  42         }
  43
  44         Resource selection = graph.newResource();
  45         graph.claim(selection, L0.InstanceOf, null, USER.RoleSelection);
  46         graph.claim(selection, USER.RoleSelection_HasModel, model);
  47         graph.claim(selection, USER.RoleSelection_HasRole, role);
  48         graph.claim(session, L0X.Session_HasRoleSelection, selection);
  49
  50     }
  51
  52 }