add some methods for dynamic selection of authorizer

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-core/trunk@1429312 13f79535-47bb-0310-9956-ffa450edef68

redback-authorization/redback-authorization-api/src/main/java/org/apache/archiva/redback/authorization/Authorizer.java

@@ -35,4 +35,16 @@ public interface Authorizer
 
     AuthorizationResult isAuthorized( AuthorizationDataSource source )
         throws AuthorizationException;
+
+    /**
+     * @return true if this implementation is a final one and not a wrapper
+     * @since 2.1
+     */
+    boolean isFinalImplementation();
+
+    /**
+     * @return a key to be able to customize label in UI
+     * @since 2.1
+     */
+    String getDescriptionKey();
 }

redback-authorization/redback-authorization-providers/redback-authorization-ldap/src/main/java/org/apache/archiva/redback/authorization/ldap/LdapAuthorizer.java

@@ -42,4 +42,14 @@ public AuthorizationResult isAuthorized( AuthorizationDataSource source )
     {
         return null;
     }
+
+    public boolean isFinalImplementation()
+    {
+        return true;
+    }
+
+    public String getDescriptionKey()
+    {
+        return "archiva.redback.authorizer.ldap";
+    }
 }

redback-authorization/redback-authorization-providers/redback-authorization-open/src/main/java/org/apache/archiva/redback/authorization/open/OpenAuthorizer.java

@@ -45,4 +45,14 @@ public AuthorizationResult isAuthorized( AuthorizationDataSource source )
         return new AuthorizationResult( true, source.getPermission(), null );
     }
 
+    public boolean isFinalImplementation()
+    {
+        return true;
+    }
+
+    public String getDescriptionKey()
+    {
+        return "archiva.redback.authorizer.open";
+    }
+
 }

redback-rbac/redback-authorization-rbac/src/main/java/org/apache/archiva/redback/authorization/rbac/RbacAuthorizer.java

@@ -186,4 +186,14 @@ public void setEvaluator( PermissionEvaluator evaluator )
     {
         this.evaluator = evaluator;
     }
+
+    public boolean isFinalImplementation()
+    {
+        return true;
+    }
+
+    public String getDescriptionKey()
+    {
+        return "archiva.redback.authorizer.rbac";
+    }
 }

redback-rbac/redback-rbac-providers/redback-rbac-memory/src/main/java/org/apache/archiva/redback/rbac/memory/MemoryAuthorizer.java

@@ -54,5 +54,15 @@ public AuthorizationResult isAuthorized( AuthorizationDataSource source )
             return new AuthorizationResult( false, principal, null );
         }
     }
+
+    public boolean isFinalImplementation()
+    {
+        return true;
+    }
+
+    public String getDescriptionKey()
+    {
+        return "archiva.redback.authorizer.memory";
+    }
 }