better fetch for role mappings

model/jpa/src/main/java/org/keycloak/models/jpa/ClientAdapter.java

@@ -198,13 +198,14 @@ public abstract class ClientAdapter implements ClientModel {
 
     @Override
     public Set<RoleModel> getScopeMappings() {
-        TypedQuery<ScopeMappingEntity> query = em.createNamedQuery("clientScopeMappings", ScopeMappingEntity.class);
+        TypedQuery<String> query = em.createNamedQuery("clientScopeMappingIds", String.class);
         query.setParameter("client", getEntity());
-        List<ScopeMappingEntity> entities = query.getResultList();
+        List<String> ids = query.getResultList();
         Set<RoleModel> roles = new HashSet<RoleModel>();
-        for (ScopeMappingEntity entity : entities) {
+        for (String roleId : ids) {
-            roles.add(new RoleAdapter(realm, em, entity.getRole()));
+            RoleModel role = realm.getRoleById(roleId);
-            em.detach(entity);
+            if (role == null) continue;
+            roles.add(role);
         }
         return roles;
     }

model/jpa/src/main/java/org/keycloak/models/jpa/UserAdapter.java

@@ -2,6 +2,7 @@ package org.keycloak.models.jpa;
 
 import org.keycloak.models.ApplicationModel;
 import org.keycloak.models.AuthenticationLinkModel;
+import org.keycloak.models.KeycloakSession;
 import org.keycloak.models.RealmModel;
 import org.keycloak.models.RoleContainerModel;
 import org.keycloak.models.RoleModel;
@@ -302,13 +303,16 @@ public class UserAdapter implements UserModel {
 
     @Override
     public Set<RoleModel> getRoleMappings() {
-        TypedQuery<UserRoleMappingEntity> query = em.createNamedQuery("userRoleMappings", UserRoleMappingEntity.class);
+        // we query ids only as the role might be cached and following the @ManyToOne will result in a load
+        // even if we're getting just the id.
+        TypedQuery<String> query = em.createNamedQuery("userRoleMappingIds", String.class);
         query.setParameter("user", getUser());
-        List<UserRoleMappingEntity> entities = query.getResultList();
+        List<String> ids = query.getResultList();
         Set<RoleModel> roles = new HashSet<RoleModel>();
-        for (UserRoleMappingEntity entity : entities) {
+        for (String roleId : ids) {
-            roles.add(realm.getRoleById(entity.getRole().getId()));
+            RoleModel roleById = realm.getRoleById(roleId);
-            em.detach(entity);
+            if (roleById == null) continue;
+            roles.add(roleById);
         }
         return roles;
     }

model/jpa/src/main/java/org/keycloak/models/jpa/entities/ScopeMappingEntity.java

@@ -16,7 +16,8 @@ import javax.persistence.NamedQuery;
  */
 @NamedQueries({
         @NamedQuery(name="hasScope", query="select m from ScopeMappingEntity m where m.client = :client and m.role = :role"),
-        @NamedQuery(name="clientScopeMappings", query="select m from ScopeMappingEntity m where m.client = :client")
+        @NamedQuery(name="clientScopeMappings", query="select m from ScopeMappingEntity m where m.client = :client"),
+        @NamedQuery(name="clientScopeMappingIds", query="select m.role.id from ScopeMappingEntity m where m.client = :client")
 })
 @Entity
 public class ScopeMappingEntity {

model/jpa/src/main/java/org/keycloak/models/jpa/entities/UserRoleMappingEntity.java

@@ -10,7 +10,8 @@ import javax.persistence.NamedQuery;
  */
 @NamedQueries({
         @NamedQuery(name="userHasRole", query="select m from UserRoleMappingEntity m where m.user = :user and m.role = :role"),
-        @NamedQuery(name="userRoleMappings", query="select m from UserRoleMappingEntity m where m.user = :user")
+        @NamedQuery(name="userRoleMappings", query="select m from UserRoleMappingEntity m where m.user = :user"),
+        @NamedQuery(name="userRoleMappingIds", query="select m.role.id from UserRoleMappingEntity m where m.user = :user")
 })
 @Entity
 public class UserRoleMappingEntity extends AbstractRoleMappingEntity {

testsuite/integration/src/main/resources/META-INF/persistence.xml

@@ -29,7 +29,7 @@
             <property name="hibernate.connection.username" value="sa"/>
             <property name="hibernate.connection.password" value=""/>
             <property name="hibernate.hbm2ddl.auto" value="create-drop" />
-            <property name="hibernate.show_sql" value="false" />
+            <property name="hibernate.show_sql" value="true" />
             <property name="hibernate.format_sql" value="true" />
         </properties>
     </persistence-unit>

testsuite/integration/src/test/java/org/keycloak/testsuite/perf/AccessTokenPerfTest.java

@@ -234,7 +234,7 @@ public class AccessTokenPerfTest {
     @Test
     public void perfJaxrsClientLogin()
     {
-        long ITERATIONS = 100;
+        long ITERATIONS = 3;
         JaxrsClientLogin login = new JaxrsClientLogin();
         long start = System.currentTimeMillis();
         for (int i = 0; i < ITERATIONS; i++) {
@@ -252,6 +252,7 @@ public class AccessTokenPerfTest {
         long start = System.currentTimeMillis();
         BrowserLogin login = new BrowserLogin();
         for (int i = 0; i < ITERATIONS; i++) {
+            //System.out.println("----------------------------------");
             login.run();
         }
         long end = System.currentTimeMillis() - start;